/* =========================================================
   HERRERA ACOUSTICS · Premium cinematografico
   ========================================================= */

:root {
  --bg: #ffffff;
  --bg-2: #f5f5f7;
  --bg-3: #ececef;
  --surface: #f2f2f4;
  --surface-2: #e8e8ec;
  --line: rgba(0, 0, 0, 0.10);
  --line-strong: rgba(0, 0, 0, 0.22);
  --text: #121216;
  --text-muted: #55555f;
  --text-dim: #8b8b95;
  --accent: #e4121f;
  --accent-2: #ff2a3a;
  --accent-glow: rgba(228, 18, 31, 0.35);
  /* tokens de secciones oscuras cinematográficas */
  --dark-bg: #08080a;
  --dark-text: #f4f4f5;
  --dark-muted: #a6a6ae;
  --dark-line: rgba(255,255,255,0.10);
  --radius: 14px;
  --radius-lg: 22px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --maxw: 1440px;
  --pad: clamp(20px, 4vw, 64px);
  --font-display: 'Syne', 'Bebas Neue', system-ui, sans-serif;
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.home { cursor: none; }
@media (max-width: 900px) { body.home { cursor: auto; } }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

::selection { background: var(--accent); color: #fff; }

/* Grain overlay */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9998;
  background-image: radial-gradient(rgba(0,0,0,0.025) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
  opacity: 0.5;
}

/* =========================================================
   SECCIONES OSCURAS CINEMATOGRÁFICAS
   Re-scope de tokens: dentro de estas bandas el texto va claro
   sobre fondo oscuro, aunque el tema global sea claro.
   ========================================================= */
.preloader,
.hero,
.footer,
.lab,
.sequence-divider,
.video-stage,
.acceso-card,
.cta-card {
  --text: #f4f4f5;
  --text-muted: #b6b6be;
  --text-dim: #7d7d86;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.26);
  --bg-2: rgba(255, 255, 255, 0.05);
  --bg-3: rgba(255, 255, 255, 0.09);
  color: var(--text);
}
/* Fondo oscuro real detrás del video/3D para conservar profundidad */
.hero, .lab, .video-stage { background-color: #08080a; }

/* =========================================================
   PRELOADER
   ========================================================= */
.preloader {
  position: fixed; inset: 0;
  background: #050505;
  z-index: 10000;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 28px;
  transition: opacity 0.8s var(--ease), visibility 0.8s var(--ease);
}
.preloader.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-mark img { width: 82px; height: auto; filter: drop-shadow(0 0 22px rgba(228,18,31,0.35)); animation: pulseMark 1.6s var(--ease) infinite; }
@keyframes pulseMark { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(0.92); opacity: 0.75; } }
.preloader-bar {
  width: 220px; height: 2px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
  position: relative;
}
.preloader-bar span {
  display: block;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: loaderSlide 1.4s linear infinite;
}
@keyframes loaderSlide { 0% { transform: translateX(-100%); } 100% { transform: translateX(300%); } }
.preloader-text { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-muted); margin: 0; }
.preloader-text .dots { display: inline-block; width: 18px; text-align: left; }

/* =========================================================
   CUSTOM CURSOR
   ========================================================= */
.cursor {
  position: fixed; left: 0; top: 0;
  pointer-events: none;
  z-index: 9999;
  will-change: transform;
}
.cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid rgba(0,0,0,0.55);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease), height 0.3s var(--ease), border-color 0.3s var(--ease);
  mix-blend-mode: difference;
  filter: drop-shadow(0 0 2px rgba(255,255,255,0.4));
}
.cursor-dot {
  position: absolute; left: 0; top: 0;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.15s var(--ease), height 0.15s var(--ease), background 0.15s var(--ease);
  filter: drop-shadow(0 0 2px rgba(0,0,0,0.5));
}
.cursor.is-hover .cursor-ring { width: 56px; height: 56px; border-color: var(--accent); }
.cursor.is-hover .cursor-dot { background: #fff; }
.cursor.is-click .cursor-ring { width: 18px; height: 18px; border-color: var(--accent); transition: width 0.08s, height 0.08s; }
.cursor.is-click .cursor-dot { width: 10px; height: 10px; background: var(--accent); }
@media (max-width: 900px) { .cursor { display: none; } }

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 18px var(--pad);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.72);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), padding 0.4s var(--ease);
  border-bottom: 1px solid var(--line);
}
.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--line);
  padding: 12px var(--pad);
}
.nav-brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: 0.02em;
}
.nav-brand img { height: 38px; width: auto; }
.nav-brand em { font-style: normal; color: var(--accent); }
.nav-links { display: flex; gap: 22px; justify-content: center; align-items: center; }
.nav-links > a,
.nav-trigger {
  font-size: 12.5px; letter-spacing: 0.04em;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
  transition: color 0.3s var(--ease);
  white-space: nowrap;
  display: inline-flex; align-items: center; gap: 5px;
  cursor: pointer;
}
.nav-links > a::after,
.nav-trigger::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 1px; background: var(--accent);
  transition: width 0.4s var(--ease);
}
.nav-links > a:hover,
.nav-trigger:hover { color: var(--text); }
.nav-links > a:hover::after,
.nav-item:hover .nav-trigger::after { width: 100%; }
.nav-caret { transition: transform 0.3s var(--ease); opacity: 0.7; }
.nav-item:hover .nav-caret { transform: rotate(180deg); }

/* ── dropdown ── */
.nav-item { position: relative; }
.nav-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 260px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.18);
  display: flex;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease), visibility 0s linear 0.28s;
  z-index: 120;
}
.nav-menu-wide { min-width: 480px; }
.nav-menu::before {
  /* puente invisible para no perder hover */
  content: ""; position: absolute; top: -14px; left: 0; right: 0; height: 14px;
}
.nav-item:hover .nav-menu,
.nav-item:focus-within .nav-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease), visibility 0s linear 0s;
}
.nav-menu-col { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-menu-title {
  font-family: var(--font-mono, monospace);
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
  padding: 6px 10px 8px;
}
.nav-menu a {
  font-size: 13px; letter-spacing: 0.01em;
  color: var(--text-muted);
  padding: 8px 10px;
  border-radius: 8px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
  white-space: nowrap;
}
.nav-menu a:hover { color: var(--text); background: rgba(0,0,0,0.05); }

/* ── acciones derecha ── */
.nav-actions { display: flex; align-items: center; gap: 14px; justify-self: end; }
.nav-alumnos {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; letter-spacing: 0.03em;
  color: var(--text-muted);
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
  white-space: nowrap;
}
.nav-alumnos:hover { color: var(--text); border-color: var(--line-strong); background: rgba(0,0,0,0.04); }
.nav-diag { white-space: nowrap; }

@media (max-width: 1200px) { .nav-links { display: none; } .nav-alumnos { display: none; } }
@media (max-width: 720px) { .nav-diag { display: none; } }

/* ── drawer group labels ── */
.drawer-group {
  display: block;
  font-family: var(--font-mono, monospace);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent);
  padding: 22px 0 6px;
  border-bottom: 0 !important;
}
.drawer-group:first-child { padding-top: 0; }

/* ── hero title — visible solo en mobile ── */
.hero-title-mobile {
  display: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 8vw, 42px);
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: 16px;
}
.hero-title-mobile em { font-style: normal; color: var(--accent); }

/* ── hamburger toggle ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: rgba(0,0,0,0.05);
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
  flex-shrink: 0;
}
.nav-toggle:hover { background: rgba(0,0,0,0.1); border-color: var(--line-strong); }
.nav-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.25s var(--ease), width 0.3s var(--ease);
  transform-origin: center;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; width: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── mobile drawer ── */
.nav-drawer {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 99;
  padding: 88px var(--pad) 40px;
  max-height: 100vh;
  overflow-y: auto;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  flex-direction: column;
  gap: 2px;
  transform: translateY(-110%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.45s var(--ease), opacity 0.35s var(--ease), visibility 0s linear 0.45s;
  /* hidden on desktop */
  display: none;
}
.nav-drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: transform 0.45s var(--ease), opacity 0.35s var(--ease), visibility 0s linear 0s;
}
.nav-drawer a {
  display: block;
  padding: 11px 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 4.4vw, 24px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--line);
  transition: color 0.3s var(--ease), padding-left 0.3s var(--ease);
}
.nav-drawer a:last-child { border-bottom: 0; margin-top: 20px; }
.nav-drawer a:hover { color: var(--text); padding-left: 8px; }
.nav-drawer a.button-primary {
  display: inline-flex;
  padding: 14px 26px;
  font-size: 14px;
  font-family: var(--font-sans);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  color: #fff;
}
.nav-drawer a.button-primary:hover { padding-left: 26px; color: #fff; }

@media (max-width: 1200px) {
  /* Switch to flexbox so toggle stays right even with hidden items */
  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .nav-toggle { display: flex; }
  .nav-drawer { display: flex; }
  .hero-title-mobile { display: block; }
}

/* =========================================================
   BUTTONS
   ========================================================= */
.button-primary, .button-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 11px 18px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 999px;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  will-change: transform;
}
.button-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 30px -10px var(--accent-glow);
}
.button-primary:hover {
  background: var(--accent-2);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px -12px var(--accent-glow);
}
.button-ghost {
  background: rgba(0,0,0,0.03);
  border: 1px solid var(--line);
  color: var(--text);
}
.button-ghost:hover {
  background: rgba(0,0,0,0.06);
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
.button-primary.lg, .button-ghost.lg {
  padding: 16px 26px;
  font-size: 14px;
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 120px var(--pad) 80px;
  isolation: isolate;
}
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
  opacity: 0.72;
  filter: contrast(1.15) saturate(1.05) brightness(0.85);
}
.hero-veil {
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(228,18,31,0.18) 0%, transparent 50%),
    linear-gradient(180deg, rgba(6,6,6,0.65) 0%, rgba(6,6,6,0.45) 40%, rgba(6,6,6,0.85) 100%);
}
.hero-canvas {
  position: absolute; inset: 0;
  width: 100% !important; height: 100% !important;
  z-index: 2;
  pointer-events: none;
  opacity: 0.9;
}
.hero-grid-overlay {
  position: absolute; inset: 0; z-index: 3;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
}

.hero-inner {
  position: relative;
  z-index: 4;
  max-width: var(--maxw);
  width: 100%;
  margin: 0 auto;
}
.hero-meta {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 40px;
}
.hero-tag { display: inline-flex; align-items: center; gap: 10px; }
.hero-tag i {
  display: inline-block;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
  animation: blink 2s infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(48px, 9.5vw, 164px);
  line-height: 0.92;
  letter-spacing: -0.03em;
  margin: 0 0 36px;
  text-transform: none;
}
.hero-title .line {
  display: block;
  overflow: hidden;
}
.hero-title .line > span {
  display: block;
  transform: translateY(105%);
  animation: heroLineIn 1.1s var(--ease-out) 0.4s forwards;
}
.hero-title .line:nth-child(2) > span { animation-delay: 0.55s; }
.hero-title .line:nth-child(3) > span { animation-delay: 0.7s; }
.hero-title .line-accent > span {
  background: linear-gradient(90deg, #fff 0%, var(--accent-2) 70%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-style: italic;
}
@keyframes heroLineIn {
  to { transform: translateY(0); }
}

.hero-lead {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 46px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 780px;
  color: var(--text);
  margin: 0 0 22px;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFade 1s var(--ease-out) 0.85s forwards;
}
.hero-sub {
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.55;
  max-width: 600px;
  color: var(--text-muted);
  margin: 0 0 40px;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFade 1s var(--ease-out) 1s forwards;
}
@keyframes heroFade { to { opacity: 1; transform: translateY(0); } }

.hero-actions {
  display: flex; gap: 14px; flex-wrap: wrap;
  margin-bottom: 60px;
  opacity: 0;
  animation: heroFade 1s var(--ease-out) 1.2s forwards;
}

.hero-stats {
  display: flex; flex-wrap: wrap; gap: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  opacity: 0;
  animation: heroFade 1s var(--ease-out) 1.4s forwards;
}
.hero-stats > div strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  margin-bottom: 6px;
}
.hero-stats > div span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero-scroll {
  position: absolute;
  right: var(--pad);
  bottom: 120px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hero-scroll-line {
  width: 1px; height: 72px; background: rgba(255,255,255,0.15); position: relative; overflow: hidden;
}
.hero-scroll-line i {
  display: block;
  position: absolute; top: -30%; left: 0;
  width: 100%; height: 30%;
  background: var(--accent);
  animation: scrollLine 2.2s var(--ease) infinite;
}
@keyframes scrollLine { 0% { top: -30%; } 100% { top: 130%; } }

.hero-ticker {
  position: absolute; left: 0; right: 0; bottom: 0;
  z-index: 4;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  background: rgba(0,0,0,0.55);
  overflow: hidden;
  backdrop-filter: blur(10px);
}
.ticker-track {
  display: flex; gap: 32px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  animation: tickerMove 36s linear infinite;
}
.ticker-track span { flex-shrink: 0; }
@keyframes tickerMove { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

@media (max-width: 900px) {
  .hero { align-items: center; padding: 140px var(--pad) 120px; }
  .hero-scroll { display: none; }
  .hero-stats { gap: 28px; }
  .hero-stats > div { flex: 1 1 45%; }
}

@media (max-width: 768px) {
  .hero {
    min-height: 100svh;
    align-items: flex-end;
    background:
      radial-gradient(ellipse at 70% 30%, rgba(228,18,31,0.12) 0%, transparent 48%),
      linear-gradient(180deg, #080808 0%, var(--bg-2) 52%, #050505 100%);
  }
  .hero-video { display: none; }
  .hero-veil {
    background:
      radial-gradient(ellipse at 70% 30%, rgba(228,18,31,0.12) 0%, transparent 48%),
      linear-gradient(180deg, rgba(6,6,6,0.34) 0%, rgba(6,6,6,0.16) 40%, rgba(6,6,6,0.7) 100%);
  }
  .hero-grid-overlay { opacity: 0.7; }
}

/* =========================================================
   SECTIONS SHARED
   ========================================================= */
.section {
  padding: clamp(80px, 10vw, 160px) var(--pad);
  max-width: var(--maxw);
  margin: 0 auto;
}
.section-heading {
  margin-bottom: clamp(50px, 6vw, 90px);
  max-width: 960px;
}
.section-heading.row {
  display: flex; justify-content: space-between; align-items: end; gap: 30px; max-width: 100%;
}
.section-heading h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.2vw, 72px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 16px 0 0;
}
.section-heading h2 em {
  font-style: italic;
  background: linear-gradient(90deg, var(--text) 0%, var(--accent) 60%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-sub {
  color: var(--text-muted);
  max-width: 620px;
  margin: 22px 0 0;
  font-size: 16px;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--accent);
}

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* =========================================================
   RESPALDO · clientes / instituciones
   ========================================================= */
.respaldo {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(40px, 5vw, 64px) var(--pad);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
.respaldo-legend {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 28px;
}
.respaldo-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 4vw, 56px);
}
.respaldo-logos span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.5vw, 20px);
  letter-spacing: 0.01em;
  color: var(--text-muted);
  opacity: 0.55;
  transition: opacity 0.3s var(--ease), color 0.3s var(--ease);
  white-space: nowrap;
}
.respaldo-logos span:hover { opacity: 1; color: var(--text); }

/* =========================================================
   MANIFESTO
   ========================================================= */
.manifesto {
  padding: clamp(80px, 10vw, 140px) var(--pad);
  max-width: var(--maxw);
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
.manifesto-quote {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.4vw, 62px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 24px 0 60px;
  max-width: 1100px;
}
.manifesto-quote em {
  font-style: italic;
  color: var(--text-muted);
}
.manifesto-quote u {
  text-decoration: none;
  background: linear-gradient(180deg, transparent 66%, var(--accent-glow) 66%);
  padding: 0 4px;
}
.manifesto-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  max-width: 1100px;
}
.manifesto-row p {
  color: var(--text-muted);
  font-size: 16px; line-height: 1.7;
  margin: 0;
}
@media (max-width: 800px) {
  .manifesto-row { grid-template-columns: 1fr; }
}

/* =========================================================
   PROBLEMS · ¿Que pasa en tu espacio?
   ========================================================= */
.problems { border-bottom: 1px solid var(--line); }
.problems-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.problem-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 30px 26px 26px;
  background: var(--bg-2, #0b0b0e);
  transition: background 0.35s var(--ease);
  min-height: 210px;
}
.problem-card::before {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width 0.45s var(--ease);
}
.problem-card:hover { background: var(--bg-3, #101014); }
.problem-card:hover::before { width: 100%; }
.problem-icon {
  width: 42px; height: 42px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 11px;
  background: rgba(228,18,31,0.1);
  color: var(--accent);
  margin-bottom: 4px;
}
.problem-icon svg { width: 24px; height: 24px; }
.problem-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
}
.problem-card p {
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.5;
  margin: 0;
  flex: 1;
}
.problem-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.3s var(--ease);
}
.problem-card:hover .problem-link { color: var(--accent); }
.problems-grid.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1000px) { .problems-grid, .problems-grid.grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .problems-grid, .problems-grid.grid-3 { grid-template-columns: 1fr; } }
.product-note {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  color: var(--text-dim); margin: 22px 0 0; text-transform: uppercase;
}

/* =========================================================
   METODO
   ========================================================= */
.method { border-bottom: 1px solid var(--line); }
.method-steps {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.method-card {
  position: relative;
  padding: 44px;
  background: var(--bg-2);
  transition: background 0.5s var(--ease);
  overflow: hidden;
  min-height: 360px;
  display: flex; flex-direction: column;
}
.method-card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 100% 0%, var(--accent-glow), transparent 60%);
  opacity: 0;
  transition: opacity 0.6s var(--ease);
  pointer-events: none;
}
.method-card:hover { background: var(--bg-3); }
.method-card:hover::before { opacity: 0.55; }
.method-num {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.25em;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.method-kicker {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.method-kicker::before {
  content: ""; width: 14px; height: 1px; background: var(--accent);
}
.method-card h3 {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  max-width: 400px;
}
.method-card > p {
  color: var(--text-muted);
  font-size: 15px; line-height: 1.6;
  margin: 0 0 28px;
  max-width: 420px;
}
.method-card ul {
  list-style: none; padding: 0; margin: auto 0 0;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.method-card ul li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  padding-left: 22px;
}
.method-card ul li:last-child { border: 0; }
.method-card ul li::before {
  content: "+";
  position: absolute; left: 0; top: 8px;
  color: var(--accent);
}
@media (max-width: 900px) { .method-steps { grid-template-columns: 1fr; } }

/* =========================================================
   LAB · escena 3D sticky
   ========================================================= */
.lab { position: relative; background: #030303; }
.lab-sticky {
  position: relative;
  height: 180vh;
  min-height: 980px;
}
#labCanvas {
  position: sticky;
  top: 0;
  width: 100% !important;
  height: 100vh !important;
  display: block;
  z-index: 1;
}
.lab-veil {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 2;
  background:
    radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.7) 100%),
    linear-gradient(180deg, rgba(0,0,0,0.6) 0%, transparent 30%, transparent 70%, rgba(0,0,0,0.7) 100%);
  opacity: 0;
  transition: opacity 0.6s var(--ease);
  will-change: opacity;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}
.lab.is-active .lab-veil { opacity: 1; }

.lab-ui {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  padding: clamp(80px, 10vh, 140px) var(--pad) 80px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  max-width: var(--maxw);
  margin: 0 auto;
  left: 0; right: 0;
  opacity: 0;
  transform: translateY(24px) translateZ(0);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  will-change: opacity, transform;
}
.lab.is-active .lab-ui { opacity: 1; transform: translateY(0) translateZ(0); }
.lab-meta {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.lab-meta .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px var(--accent-glow);
  animation: blink 1.6s infinite;
}
.lab-stages {
  position: relative;
  align-self: end;
  max-width: 520px;
}
.lab-stage {
  position: relative;
  display: flex; flex-direction: column; gap: 14px;
  padding: 30px;
  background: rgba(12,12,14,0.68);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.lab-stage.is-active { opacity: 1; transform: translateY(0); }
.stage-index {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
}
.lab-stage h3 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 700; letter-spacing: -0.01em;
  margin: 0;
}
.lab-stage p {
  color: var(--text-muted);
  font-size: 14px; line-height: 1.6; margin: 0;
}
.lab-hint {
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(0,0,0,0.5);
}
.lab-hint b { color: var(--accent); font-weight: 600; }
@media (max-width: 800px) {
  .lab-sticky {
    height: 100vh;
    min-height: 560px;
  }
  #labCanvas {
    height: 100vh !important;
  }
  .lab-ui {
    padding: 70px var(--pad) 32px;
  }
  .lab-stages {
    max-width: 100%;
  }
  .lab-stage {
    padding: 20px;
  }
  .lab-hint {
    font-size: 10px;
    padding: 8px 12px;
    justify-self: stretch;
    text-align: center;
  }
}

/* =========================================================
   SECUENCIAS · escenas sticky inferiores
   ========================================================= */
.panel-glass {
  background: rgba(10, 10, 12, 0.68);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

.sequence-divider {
  position: relative;
  background:
    radial-gradient(circle at 18% 24%, rgba(228, 18, 31, 0.16), transparent 24%),
    linear-gradient(180deg, #040404 0%, #08090b 100%);
}

/* =========================================================
   VIDEO STAGE · etapas 02-04
   ========================================================= */
.video-stage {
  position: relative;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  background: #050505;
}

.video-stage-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.video-stage-veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(to right, rgba(0, 0, 0, 0.72) 0%, rgba(0, 0, 0, 0.18) 55%, transparent 100%),
    linear-gradient(to top, rgba(0, 0, 0, 0.5) 0%, transparent 40%);
}

.video-stage-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  padding: 0 var(--pad) clamp(40px, 7vh, 80px);
}

.sequence-copy {
  padding: 26px 28px;
  align-self: flex-end;
  max-width: min(520px, 100%);
}

.sequence-copy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5vw, 3.8rem);
  line-height: 0.94;
  letter-spacing: -0.02em;
}

.sequence-copy p:last-child {
  margin: 14px 0 0;
  color: var(--text-muted);
  max-width: 38ch;
}

@media (max-width: 768px) {
  /* Two-part layout: video top (natural 16:9) + text panel below */
  .video-stage {
    height: auto;
    display: flex;
    flex-direction: column;
  }
  .video-stage-bg {
    position: relative;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    flex-shrink: 0;
  }
  .video-stage-veil {
    display: none;
  }
  .video-stage-overlay {
    position: relative;
    inset: auto;
    padding: 24px var(--pad) 32px;
    background: var(--bg-2);
    border-top: 1px solid var(--line);
    align-items: flex-start;
  }
  .sequence-copy {
    max-width: 100%;
    background: transparent;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 0;
  }
  .sequence-copy h3 {
    font-size: clamp(1.5rem, 6vw, 2.2rem);
  }
  .sequence-copy p:last-child {
    font-size: 14px;
    max-width: 100%;
  }
}

/* =========================================================
   SERVICIOS
   ========================================================= */
.services { border-bottom: 1px solid var(--line); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.service-card {
  position: relative;
  padding: 36px 30px 40px;
  background: var(--bg-2);
  transition: background 0.5s var(--ease);
  overflow: hidden;
  min-height: 340px;
}
.service-card::after {
  content: ""; position: absolute; bottom: 0; left: 0;
  height: 2px; width: 0;
  background: var(--accent);
  transition: width 0.5s var(--ease);
}
.service-card:hover { background: var(--bg-3); }
.service-card:hover::after { width: 100%; }
.service-num {
  position: absolute; top: 20px; right: 24px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.25em;
  color: var(--text-dim);
}
.service-icon {
  width: 52px; height: 52px;
  margin-bottom: 26px;
  color: var(--accent);
  display: grid; place-items: center;
  background: rgba(228,18,31,0.08);
  border: 1px solid rgba(228,18,31,0.25);
  border-radius: 12px;
}
.service-icon svg { width: 28px; height: 28px; }
.service-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}
.service-card ul {
  list-style: none; padding: 0; margin: 0;
}
.service-card ul li {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  padding-left: 14px;
  position: relative;
  margin-bottom: 6px;
}
.service-card ul li::before {
  content: "";
  position: absolute; left: 0; top: 9px;
  width: 6px; height: 1px;
  background: var(--accent);
}
.services-grid-5 { grid-template-columns: repeat(5, 1fr); }
.services-grid a.service-card { color: inherit; }
@media (max-width: 1100px) { .services-grid, .services-grid-5 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .services-grid, .services-grid-5 { grid-template-columns: 1fr; } }

/* =========================================================
   EQUIPO
   ========================================================= */
.team { border-bottom: 1px solid var(--line); }
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.team-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 28px;
  padding: 32px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.team-card:hover {
  background: var(--bg-3);
  border-color: var(--line-strong);
  transform: translateY(-4px);
}
.team-portrait {
  position: relative;
  width: 160px; height: 200px;
  border-radius: var(--radius);
  overflow: hidden;
  display: grid; place-items: center;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(228,18,31,0.25), transparent 70%),
    linear-gradient(180deg, #1a1a1e 0%, #0b0b0c 100%);
  border: 1px solid var(--line-strong);
}
.team-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  z-index: 0;
  filter: saturate(1.02) contrast(1.02);
}
.team-portrait-ring {
  position: absolute;
  width: 120px; height: 120px;
  border-radius: 50%;
  border: 1px solid rgba(228,18,31,0.6);
  animation: portraitRing 8s linear infinite;
  z-index: 1;
}
.team-portrait-ring::before {
  content: "";
  position: absolute; inset: -18px;
  border-radius: 50%;
  border: 1px dashed rgba(255,255,255,0.08);
}
@keyframes portraitRing { to { transform: rotate(360deg); } }
.team-initials {
  font-family: var(--font-display);
  font-size: 58px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  z-index: 1;
  display: none;
}
.team-role {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.team-card h3 {
  font-family: var(--font-display);
  font-size: clamp(26px, 2.4vw, 34px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 10px 0 18px;
}
.team-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0 0 10px;
}
.team-card p b { color: var(--text); font-weight: 500; }
.team-sub {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  margin-top: 14px !important;
  font-family: var(--font-mono);
  font-size: 12px !important;
  letter-spacing: 0.05em;
  color: var(--text-dim) !important;
}
@media (max-width: 900px) {
  .team-grid { grid-template-columns: 1fr; }
  .team-card { grid-template-columns: 1fr; }
  .team-portrait { width: 100%; height: 160px; }
}

/* =========================================================
   MARCAS
   ========================================================= */
.brands { border-bottom: 1px solid var(--line); }
.brands-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.brand-block {
  padding: 32px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.brand-block:hover {
  border-color: var(--line-strong);
  background: var(--bg-3);
}
.brand-head {
  display: flex; align-items: baseline; gap: 16px;
  margin-bottom: 6px;
}
.brand-head span {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.25em;
  color: var(--accent);
}
.brand-head h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}
.brand-desc {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0 0 22px;
}
.brand-logos {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.brand-logos span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 7px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text-muted);
  transition: color 0.3s, border-color 0.3s, background 0.3s;
}
.brand-logos span:hover {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(228,18,31,0.08);
}
.brand-logos img {
  height: 20px;
  width: auto;
  max-width: 90px;
  object-fit: contain;
  display: block;
  opacity: 0.75;
  filter: brightness(0) invert(1);
  transition: opacity 0.3s;
}
.brand-logos span:hover img {
  opacity: 1;
}
@media (max-width: 800px) { .brands-tabs { grid-template-columns: 1fr; } }

/* =========================================================
   PROYECTOS
   ========================================================= */
.projects { border-bottom: 1px solid var(--line); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.project-card {
  display: block;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease);
}
.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
}
.project-media {
  aspect-ratio: 4/5;
  position: relative;
  overflow: hidden;
}
.project-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.85) 100%);
}
.project-media-1 {
  background:
    radial-gradient(circle at 30% 40%, rgba(228,18,31,0.3), transparent 60%),
    linear-gradient(135deg, #2d0a0e 0%, #060606 70%);
}
.project-media-1::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 20px 20px;
  transform: perspective(600px) rotateX(55deg) translateY(30%) scale(2);
  transform-origin: center bottom;
  mask: linear-gradient(180deg, transparent, #000);
  -webkit-mask: linear-gradient(180deg, transparent, #000);
}
.project-media-2 {
  background:
    radial-gradient(circle at 70% 30%, rgba(228,18,31,0.25), transparent 60%),
    linear-gradient(135deg, #1c1c24 0%, #060606 80%);
}
.project-media-2::before {
  content: "";
  position: absolute; inset: 20% 10% auto 10%;
  height: 2px;
  background: var(--accent);
  box-shadow:
    0 30px 0 rgba(255,255,255,0.5),
    0 60px 0 rgba(255,255,255,0.3),
    0 90px 0 rgba(255,255,255,0.15),
    0 0 30px var(--accent-glow);
}
.project-media-3 {
  background:
    radial-gradient(circle at 50% 60%, rgba(228,18,31,0.25), transparent 60%),
    linear-gradient(135deg, #0f1416 0%, #060606 80%);
}
.project-media-3::before {
  content: "";
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(
    0deg,
    transparent 0,
    transparent 18px,
    rgba(255,255,255,0.08) 18px,
    rgba(255,255,255,0.08) 19px
  );
  mask: radial-gradient(ellipse at center, #000 40%, transparent 80%);
  -webkit-mask: radial-gradient(ellipse at center, #000 40%, transparent 80%);
}
.project-media-4 {
  background:
    radial-gradient(circle at 40% 50%, rgba(228,18,31,0.3), transparent 65%),
    linear-gradient(135deg, #1c0406 0%, #060606 75%);
}
.project-media-4::before {
  content: "";
  position: absolute; inset: 25% 15%;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow:
    inset 0 0 0 20px rgba(228,18,31,0.06),
    inset 0 0 0 40px rgba(228,18,31,0.03);
}
.project-info { padding: 24px; }
.project-info span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.project-info h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 10px 0 8px;
}
.project-info p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}
@media (max-width: 1100px) { .projects-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .projects-grid { grid-template-columns: 1fr; } }

/* =========================================================
   CLIENTES MARQUEE
   ========================================================= */
.clients {
  overflow: hidden;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
}
.clients-marquee { overflow: hidden; }
.clients-track {
  display: flex; gap: 80px;
  animation: clientsMove 40s linear infinite;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 54px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: rgba(255,255,255,0.15);
  transition: color 0.4s var(--ease);
}
.clients:hover .clients-track { color: rgba(255,255,255,0.45); }
.clients-track span {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
.clients-track img {
  height: 28px;
  width: 28px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.25;
  transition: opacity 0.4s var(--ease);
  flex-shrink: 0;
}
.clients:hover .clients-track img { opacity: 0.7; }
@keyframes clientsMove { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* =========================================================
   TESTIMONIAL
   ========================================================= */
.testimonial {
  border-bottom: 1px solid var(--line);
  padding: clamp(80px, 10vw, 160px) var(--pad);
}
.testimonial blockquote {
  max-width: 960px;
  margin: 0 auto;
  padding: 0;
}
.testimonial blockquote p {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.8vw, 48px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 0 0 36px;
  position: relative;
  padding-left: 42px;
}
.testimonial blockquote p::before {
  content: '"';
  position: absolute; left: 0; top: -14px;
  font-size: 100px;
  color: var(--accent);
  line-height: 1;
  font-family: var(--font-display);
}
.testimonial footer {
  display: flex; flex-direction: column; gap: 4px;
  padding-left: 42px;
}
.testimonial footer strong {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 15px;
}
.testimonial footer span {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* =========================================================
   CTA FINAL
   ========================================================= */
.cta-final { padding: clamp(60px, 8vw, 120px) var(--pad); }
.cta-card {
  position: relative;
  padding: clamp(48px, 7vw, 96px);
  background:
    radial-gradient(ellipse at 90% 10%, rgba(228,18,31,0.22), transparent 50%),
    linear-gradient(135deg, #0e0e10 0%, #060606 100%);
  border: 1px solid var(--line);
  border-radius: clamp(22px, 2vw, 32px);
  max-width: var(--maxw);
  margin: 0 auto;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, transparent, #000 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, transparent, #000 70%);
}
.cta-card > * { position: relative; z-index: 1; }
.cta-card h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.5vw, 80px);
  line-height: 1;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 18px 0 20px;
  max-width: 900px;
}
.cta-card h2 em {
  font-style: italic;
  background: linear-gradient(90deg, var(--text) 0%, var(--accent) 60%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.cta-card > p {
  color: var(--text-muted);
  font-size: 17px;
  margin: 0 0 44px;
  max-width: 640px;
}
.cta-actions {
  display: flex; gap: 14px; flex-wrap: wrap;
  margin-bottom: 60px;
}
.cta-contact {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}
.cta-contact > div span {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.cta-contact > div a,
.cta-contact > div p {
  font-size: 15px;
  color: var(--text);
  margin: 0;
  transition: color 0.3s var(--ease);
}
.cta-contact > div a:hover { color: var(--accent); }
@media (max-width: 800px) { .cta-contact { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px)  { .cta-contact { grid-template-columns: 1fr; } }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: #030303;
  padding: clamp(60px, 7vw, 100px) var(--pad) 32px;
  border-top: 1px solid var(--line);
}
.footer-top {
  max-width: var(--maxw);
  margin: 0 auto 50px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
}
.footer-brand {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
}
.footer-brand img { height: 40px; }
.footer-brand em { font-style: normal; color: var(--accent); }
.footer-links {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
}
.footer-links h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
  margin: 0 0 18px;
}
.footer-links a, .footer-links p {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 8px;
  transition: color 0.3s var(--ease);
}
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  flex-wrap: wrap;
}
.footer-bottom a[href*="dviam"] {
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s var(--ease);
}
.footer-bottom a[href*="dviam"]:hover { color: var(--accent); }
@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer-links { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }
  .section-heading.row { flex-direction: column; align-items: flex-start; }
}

/* =========================================================
   SUBPAGES shared
   ========================================================= */
body.subpage .page-hero {
  position: relative;
  padding: clamp(160px, 20vh, 220px) var(--pad) clamp(80px, 10vw, 140px);
  max-width: var(--maxw);
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
body.subpage .page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 5.2vw, 68px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin: 16px 0 22px;
  max-width: 900px;
}
body.subpage .page-hero h1 em {
  font-style: italic;
  background: linear-gradient(90deg, var(--text) 0%, var(--accent) 60%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
body.subpage .page-hero > p {
  max-width: 700px;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1.6;
}
body.subpage main { padding-bottom: 60px; }

/* =========================================================
   SERVICE PAGES
   ========================================================= */
.svc-section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(60px, 8vw, 110px) var(--pad);
  border-bottom: 1px solid var(--line);
}
.svc-lead {
  max-width: 780px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 clamp(40px, 5vw, 64px);
}
.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.svc-item { background: var(--bg-2); padding: 30px 26px; transition: background 0.35s var(--ease); }
.svc-item:hover { background: var(--bg-3); }
.svc-num { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; color: var(--accent); display: block; margin-bottom: 14px; }
.svc-item h3 { font-family: var(--font-display); font-size: 19px; font-weight: 700; line-height: 1.15; margin: 0 0 10px; }
.svc-item p { color: var(--text-muted); font-size: 14px; line-height: 1.55; margin: 0; }
.svc-two { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 64px); }
.svc-two h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 700; line-height: 1.05; letter-spacing: -0.02em;
  margin: 14px 0 26px;
}
.svc-list { list-style: none; padding: 0; margin: 0; }
.svc-list li {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 15px; line-height: 1.5;
  display: flex; gap: 12px;
}
.svc-list li::before { content: "+"; color: var(--accent); flex-shrink: 0; }
@media (max-width: 900px) {
  .svc-grid { grid-template-columns: 1fr; }
  .svc-two { grid-template-columns: 1fr; }
}

.case-disclaimer {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  max-width: 640px;
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--accent);
}

/* =========================================================
   BLOG
   ========================================================= */
.blog-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: clamp(30px, 4vw, 44px); }
.blog-chip {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 9px 15px; border-radius: 999px; border: 1px solid var(--line); color: var(--text-muted);
}
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.blog-card {
  display: flex; flex-direction: column;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}
.blog-card:hover { transform: translateY(-6px); border-color: var(--accent); }
.blog-thumb { aspect-ratio: 16/10; position: relative; overflow: hidden; background: #0a0a0c; }
.blog-thumb::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(228,18,31,0.28), transparent 60%), linear-gradient(135deg, #1a1a20 0%, #060606 80%);
}
.blog-thumb::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(to right, rgba(255,255,255,0.06) 1px, transparent 1px), linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 22px 22px;
  mask: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}
.blog-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.blog-cat { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin: 0 0 12px; }
.blog-card h3 { font-family: var(--font-display); font-size: 20px; font-weight: 700; line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 10px; }
.blog-card p { color: var(--text-muted); font-size: 14px; line-height: 1.55; margin: 0 0 18px; flex: 1; }
.blog-meta { display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.05em; color: var(--text-dim); }
.blog-meta .blog-read { color: var(--accent); text-transform: uppercase; }
@media (max-width: 1000px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .blog-grid { grid-template-columns: 1fr; } }

/* =========================================================
   CALCULADORAS / HERRAMIENTAS
   ========================================================= */
.calc-tabs {
  display: flex; flex-wrap: wrap; gap: 8px;
  max-width: var(--maxw); margin: 0 auto clamp(30px, 4vw, 48px);
  padding: 0 var(--pad);
}
.calc-tab {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 18px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--text-muted);
  background: transparent; cursor: pointer;
  transition: all 0.25s var(--ease);
}
.calc-tab:hover { border-color: var(--line-strong); color: var(--text); }
.calc-tab.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }

.calc-section {
  max-width: var(--maxw); margin: 0 auto;
  padding: 0 var(--pad) clamp(50px, 6vw, 90px);
}
.calc-panel { display: none; }
.calc-panel.is-active { display: block; }
.calc-card {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden;
  background: var(--bg-2);
}
.calc-form { padding: clamp(28px, 4vw, 44px); border-right: 1px solid var(--line); }
.calc-form h2 { font-family: var(--font-display); font-size: clamp(22px, 2.6vw, 32px); font-weight: 700; margin: 0 0 8px; letter-spacing: -0.01em; }
.calc-form > p { color: var(--text-muted); font-size: 14px; line-height: 1.55; margin: 0 0 26px; }
.calc-field { margin-bottom: 18px; }
.calc-field label { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 8px; }
.calc-field input, .calc-field select {
  width: 100%; padding: 13px 14px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); font-family: var(--font-sans); font-size: 15px;
  transition: border-color 0.2s var(--ease);
}
.calc-field input:focus, .calc-field select:focus { outline: none; border-color: var(--accent); }
.calc-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.calc-actions { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }

.calc-result { padding: clamp(28px, 4vw, 44px); background: linear-gradient(160deg, #0e0e10 0%, #060606 100%); color: #f4f4f5; }
.calc-result .eyebrow { color: var(--accent); }
.calc-result .eyebrow::before { background: var(--accent); }
.calc-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; overflow: hidden; margin: 20px 0; }
.calc-metric { background: #0b0b0d; padding: 18px 20px; }
.calc-metric strong { display: block; font-family: var(--font-display); font-size: clamp(22px, 3vw, 32px); font-weight: 700; line-height: 1; color: #fff; }
.calc-metric span { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: #8b8b95; margin-top: 6px; display: block; }
.calc-verdict { font-size: 15px; line-height: 1.6; color: #c4c4cc; margin: 16px 0; }
.calc-verdict b { color: #fff; }
.calc-reco { border-left: 2px solid var(--accent); padding: 12px 0 12px 16px; margin: 20px 0; }
.calc-reco span { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 6px; }
.calc-reco a { color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 18px; text-decoration: underline; text-underline-offset: 3px; }
.calc-note { font-family: var(--font-mono); font-size: 11px; line-height: 1.6; color: #7d7d86; margin-top: 20px; }
.calc-placeholder { color: #7d7d86; font-size: 14px; line-height: 1.6; }
.calc-modes-list { list-style: none; padding: 0; margin: 16px 0; display: flex; flex-direction: column; gap: 2px; }
.calc-modes-list li { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,0.08); font-size: 14px; }
.calc-modes-list li.clash { color: var(--accent-2); }
.calc-modes-list .mode-axis { font-family: var(--font-mono); font-size: 11px; color: #8b8b95; }
@media (max-width: 860px) {
  .calc-card { grid-template-columns: 1fr; }
  .calc-form { border-right: 0; border-bottom: 1px solid var(--line); }
  .calc-metrics { grid-template-columns: 1fr 1fr; }
}

/* =========================================================
   ACADEMIA
   ========================================================= */
.academy-programs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.program-card {
  display: flex; flex-direction: column;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}
.program-card:hover { transform: translateY(-6px); border-color: var(--accent); }
.program-card .prog-tag {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 12px;
}
.program-card h3 { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin: 0 0 8px; line-height: 1.1; }
.program-card > p { color: var(--text-muted); font-size: 14px; line-height: 1.55; margin: 0 0 18px; }
.program-card ul { list-style: none; padding: 0; margin: 0 0 22px; flex: 1; }
.program-card li { padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; color: var(--text-muted); display: flex; gap: 10px; }
.program-card li::before { content: "+"; color: var(--accent); }
.program-card .prog-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 20px; text-transform: uppercase; }
@media (max-width: 900px) { .academy-programs { grid-template-columns: 1fr; } }

/* FAQ */
.faq { max-width: 900px; }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 6px 0;
}
.faq summary {
  cursor: pointer; list-style: none;
  padding: 18px 40px 18px 0;
  position: relative;
  font-family: var(--font-display); font-weight: 700; font-size: clamp(16px, 2vw, 20px);
  color: var(--text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-size: 24px; transition: transform 0.3s var(--ease);
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--text-muted); font-size: 15px; line-height: 1.6; margin: 0 0 20px; max-width: 720px; }

/* Acceso alumnos */
.acceso-card {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 72px);
  background: linear-gradient(135deg, #0e0e10 0%, #060606 100%);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: clamp(22px, 2vw, 32px);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  color: #f4f4f5;
}
.acceso-card h2 { font-family: var(--font-display); font-size: clamp(26px, 3.4vw, 44px); font-weight: 700; line-height: 1.05; margin: 14px 0 16px; }
.acceso-card p { color: #b6b6be; font-size: 15px; line-height: 1.6; margin: 0 0 8px; max-width: 46ch; }
.acceso-actions { display: flex; flex-direction: column; gap: 12px; }
.acceso-note { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: #7d7d86; margin-top: 6px; }
@media (max-width: 820px) { .acceso-card { grid-template-columns: 1fr; } }

/* Portafolio grid */
.portfolio-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad) clamp(80px, 10vw, 140px);
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.portfolio-item {
  grid-column: span 3;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: block;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease);
}
.portfolio-item:hover { transform: translateY(-6px); border-color: var(--accent); }
.portfolio-item.large { grid-column: span 6; }
.portfolio-item.wide { grid-column: span 4; }
.portfolio-item.narrow { grid-column: span 2; }
.portfolio-media {
  aspect-ratio: 16/10;
  position: relative;
  overflow: hidden;
}
.portfolio-item.narrow .portfolio-media { aspect-ratio: 4/5; }
.portfolio-item.large .portfolio-media { aspect-ratio: 21/9; }
.portfolio-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.85));
}
.portfolio-info {
  padding: 24px 26px;
}
.portfolio-info .cat {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.portfolio-info h3 {
  font-family: var(--font-display);
  font-size: 22px; line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 700;
  margin: 8px 0 8px;
}
.portfolio-info p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}

/* Distinct visuals for portfolio items */
.pf-v1 { background: radial-gradient(circle at 30% 30%, rgba(228,18,31,0.35), transparent 60%), linear-gradient(135deg, #2d0a0e 0%, #060606 70%); }
.pf-v1::before { content:""; position:absolute; inset:0; background-image: linear-gradient(to right, rgba(255,255,255,0.08) 1px, transparent 1px), linear-gradient(to bottom, rgba(255,255,255,0.08) 1px, transparent 1px); background-size: 24px 24px; transform: perspective(600px) rotateX(55deg) translateY(20%) scale(1.6); transform-origin: center bottom; mask: linear-gradient(180deg, transparent, #000); -webkit-mask: linear-gradient(180deg, transparent, #000); }
.pf-v2 { background: radial-gradient(circle at 70% 40%, rgba(228,18,31,0.25), transparent 60%), linear-gradient(135deg, #1c1c24 0%, #060606 80%); }
.pf-v2::before { content:""; position:absolute; inset:20% 10% auto 10%; height:2px; background: var(--accent); box-shadow: 0 30px 0 rgba(255,255,255,0.4), 0 60px 0 rgba(255,255,255,0.2), 0 90px 0 rgba(255,255,255,0.1), 0 0 30px var(--accent-glow); }
.pf-v3 { background: radial-gradient(circle at 50% 60%, rgba(228,18,31,0.25), transparent 65%), linear-gradient(135deg, #0f1416 0%, #060606 80%); }
.pf-v3::before { content:""; position:absolute; inset:0; background-image: repeating-linear-gradient(0deg, transparent 0, transparent 18px, rgba(255,255,255,0.1) 18px, rgba(255,255,255,0.1) 19px); mask: radial-gradient(ellipse at center, #000 40%, transparent 80%); -webkit-mask: radial-gradient(ellipse at center, #000 40%, transparent 80%); }
.pf-v4 { background: radial-gradient(circle at 40% 50%, rgba(228,18,31,0.3), transparent 65%), linear-gradient(135deg, #1c0406 0%, #060606 75%); }
.pf-v4::before { content:""; position:absolute; inset:25% 20%; border-radius:50%; border:1px solid rgba(255,255,255,0.25); box-shadow: inset 0 0 0 20px rgba(228,18,31,0.06), inset 0 0 0 40px rgba(228,18,31,0.03); }
.pf-v5 { background: radial-gradient(circle at 50% 0%, rgba(228,18,31,0.3), transparent 55%), linear-gradient(180deg, #140608 0%, #060606 70%); }
.pf-v5::before { content:""; position:absolute; inset:30% 0 0 0; background-image: repeating-linear-gradient(90deg, rgba(255,255,255,0.25) 0, rgba(255,255,255,0.25) 2px, transparent 2px, transparent 40px); mask: linear-gradient(180deg, #000, transparent); -webkit-mask: linear-gradient(180deg, #000, transparent); }
.pf-v6 { background: radial-gradient(circle at 80% 80%, rgba(228,18,31,0.22), transparent 60%), linear-gradient(135deg, #14141a 0%, #060606 80%); }
.pf-v6::before { content:""; position:absolute; inset:0; background: repeating-linear-gradient(45deg, transparent 0 20px, rgba(255,255,255,0.05) 20px 22px); }
.pf-v7 { background: radial-gradient(circle at 20% 50%, rgba(228,18,31,0.3), transparent 60%), linear-gradient(135deg, #0d0d12 0%, #060606 75%); }
.pf-v7::before { content:""; position:absolute; inset:40% 15% 15% 15%; border-radius: 60px 60px 0 0; background: rgba(228,18,31,0.15); border: 1px solid rgba(228,18,31,0.4); }
.pf-v8 { background: radial-gradient(circle at 60% 30%, rgba(228,18,31,0.25), transparent 65%), linear-gradient(135deg, #16161a 0%, #060606 80%); }
.pf-v8::before { content:""; position:absolute; inset:0; background-image: radial-gradient(circle at center, rgba(255,255,255,0.35) 1px, transparent 1.5px); background-size: 14px 14px; mask: radial-gradient(circle at center, #000 35%, transparent 70%); -webkit-mask: radial-gradient(circle at center, #000 35%, transparent 70%); }

@media (max-width: 1100px) {
  .portfolio-grid { grid-template-columns: repeat(4, 1fr); }
  .portfolio-item, .portfolio-item.wide, .portfolio-item.large, .portfolio-item.narrow { grid-column: span 2; }
  .portfolio-item.large { grid-column: span 4; }
}
@media (max-width: 700px) {
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-item, .portfolio-item.wide, .portfolio-item.large, .portfolio-item.narrow { grid-column: span 1; }
}

/* Casos de estudio */
.case-study {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(60px, 8vw, 120px) var(--pad);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}
.case-study .case-media {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-2);
  border: 1px solid var(--line);
}
.case-study .case-meta {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex; gap: 22px; flex-wrap: wrap;
  margin-bottom: 20px;
}
.case-study h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.2vw, 56px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}
.case-study h2 em {
  font-style: italic;
  color: var(--accent);
}
.case-study .case-intro {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 30px;
}
.case-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
  padding: 24px 0; margin: 10px 0 30px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.case-stats div strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  margin-bottom: 6px;
}
.case-stats div span {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.case-study h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 30px 0 12px;
}
.case-study ul {
  list-style: none; padding: 0; margin: 0 0 12px;
}
.case-study ul li {
  padding: 10px 0 10px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--text-muted);
  position: relative;
}
.case-study ul li::before {
  content: "";
  position: absolute; left: 0; top: 16px;
  width: 8px; height: 1px;
  background: var(--accent);
}
@media (max-width: 900px) { .case-study { grid-template-columns: 1fr; gap: 40px; } }