:root {
    --bg-deep:      #202027;
    --bg-mid:       #2a2a37;
    --bg-soft:      #323241;
    --nav-bg:       #363641;
    --yellow:       #f4e22a;
    --yellow-glow:  #fff04a;
    --yellow-dim:   #c9b91a;
    --white:        #ffffff;
    --text-main:    #f0f0f0;
    --text-muted:   #8a8a92;
    --text-dim:     #5a5a62;
    --border:       rgba(255,255,255,0.08);
    --border-yellow: rgba(244,226,42,0.25);
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg-deep);
    color: var(--text-main);
    font-family: 'Archivo', sans-serif;
    font-weight: 400;
    overflow-x: hidden;
    line-height: 1.5;
  }

  ::selection { background: var(--yellow); color: var(--bg-deep); }

  /* ============ SCROLL VIDEO BACKGROUND ============ */
  .scroll-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    pointer-events: none;
  }
  .scroll-video-overlay {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: rgba(10, 10, 15, 0.65);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
  }

  /* Transparent backgrounds ONLY on pages with the video bg */
  body.has-video-bg { background: transparent; }
  body.has-video-bg .propuesta { background: rgba(32, 32, 39, 0.75); }
  body.has-video-bg .servicios { background: rgba(42, 42, 55, 0.75); }
  body.has-video-bg .filosofia { background: rgba(32, 32, 39, 0.75); }
  body.has-video-bg .porque { background: rgba(42, 42, 55, 0.75); }
  body.has-video-bg .contacto { background: rgba(32, 32, 39, 0.75); }
  body.has-video-bg footer { background: rgba(42, 42, 55, 0.75); }

  /* ============ STARFIELD ============ */
  .starfield {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    background:
      radial-gradient(ellipse 80% 60% at 70% 30%, rgba(244,226,42,0.04), transparent 60%),
      radial-gradient(ellipse 60% 80% at 20% 80%, rgba(120,80,200,0.06), transparent 60%);
  }
  .stars { position: absolute; inset: 0; }
  .star {
    position: absolute;
    background: #fff;
    border-radius: 50%;
    animation: twinkle 4s ease-in-out infinite;
  }
  @keyframes twinkle {
    0%, 100% { opacity: 0.15; transform: scale(1); }
    50% { opacity: 0.95; transform: scale(1.3); }
  }
  .shooting-star {
    position: absolute;
    width: 120px;
    height: 1.5px;
    background: linear-gradient(90deg, transparent, var(--yellow), #fff, transparent);
    opacity: 0;
    animation: shoot 7s linear infinite;
    box-shadow: 0 0 8px var(--yellow);
  }
  @keyframes shoot {
    0% { transform: translateX(-150px) translateY(0) rotate(-18deg); opacity: 0; }
    3% { opacity: 1; }
    15% { opacity: 0; }
    100% { transform: translateX(120vw) translateY(50vh) rotate(-18deg); opacity: 0; }
  }

  /* Floating particles */
  .particle {
    position: fixed;
    width: 3px; height: 3px;
    background: var(--yellow);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.4;
    z-index: 1;
    box-shadow: 0 0 6px var(--yellow);
    animation: floatParticle linear infinite;
  }
  @keyframes floatParticle {
    0% { transform: translateY(100vh) translateX(0); opacity: 0; }
    10% { opacity: 0.5; }
    90% { opacity: 0.5; }
    100% { transform: translateY(-10vh) translateX(50px); opacity: 0; }
  }

  /* ============ NOISE ============ */
  body::before {
    content: '';
    position: fixed; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 999;
    opacity: 0.5;
    mix-blend-mode: overlay;
  }

  /* Grid background animado */
  body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(rgba(244,226,42,0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(244,226,42,0.025) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: 0;
    animation: gridShift 25s linear infinite;
  }
  @keyframes gridShift {
    from { background-position: 0 0; }
    to { background-position: 80px 80px; }
  }

  /* Scroll progress bar */
  .scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--yellow), var(--yellow-glow));
    z-index: 101;
    width: 0;
    box-shadow: 0 0 12px var(--yellow);
    transition: width 0.1s;
  }

  /* ============ NAV ============ */
  nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--yellow);
    transition: background 0.4s, padding 0.4s;
  }
  nav.scrolled {
    background: rgba(54,54,65,0.92);
    backdrop-filter: blur(16px);
  }
  .nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.4rem 3rem;
    transition: padding 0.4s;
  }
  nav.scrolled .nav-inner { padding: 1rem 3rem; }
  .nav-logo {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.5rem;
    letter-spacing: -0.01em;
    color: var(--white);
    text-decoration: none;
    display: flex; align-items: baseline; gap: 0.05rem;
    transition: transform 0.3s;
  }
  .nav-logo:hover { transform: scale(1.05); }
  .nav-logo .dot {
    color: var(--yellow);
    animation: dotPulse 2s ease-in-out infinite;
    display: inline-block;
  }
  @keyframes dotPulse {
    0%, 100% { transform: scale(1); text-shadow: 0 0 0 var(--yellow); }
    50% { transform: scale(1.3); text-shadow: 0 0 20px var(--yellow); }
  }
  .nav-links {
    display: flex; gap: 2.5rem; list-style: none;
  }
  .nav-links a {
    font-family: 'Archivo', sans-serif;
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--white);
    text-decoration: none;
    transition: color 0.2s;
    position: relative;
    overflow: hidden;
    display: inline-block;
  }
  .nav-links a::after {
    content: '';
    position: absolute;
    left: 0; bottom: -6px;
    width: 0; height: 2px;
    background: var(--yellow);
    transition: width 0.3s;
    box-shadow: 0 0 8px var(--yellow);
  }
  .nav-links a:hover { color: var(--yellow); }
  .nav-links a:hover::after { width: 100%; }
  .nav-links a.active { color: var(--yellow); }
  .nav-links a.active::after { width: 100%; }

  .nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    cursor: pointer;
    width: 30px; height: 24px;
    position: relative;
  }
  .nav-toggle span {
    position: absolute;
    left: 0;
    width: 100%; height: 2px;
    background: var(--yellow);
    transition: transform 0.3s, opacity 0.3s;
  }
  .nav-toggle span:nth-child(1) { top: 0; }
  .nav-toggle span:nth-child(2) { top: 11px; }
  .nav-toggle span:nth-child(3) { top: 22px; }

  /* ============ LAYOUT ============ */
  section {
    position: relative;
    z-index: 1;
    padding: 8rem 3rem;
    max-width: 1400px;
    margin: 0 auto;
  }

  /* Scroll reveal base */
  .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-left {
    opacity: 0;
    transform: translateX(-60px);
    transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
  }
  .reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
  }
  .reveal-right {
    opacity: 0;
    transform: translateX(60px);
    transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
  }
  .reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
  }
  .reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
  }
  .reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
  }
  .reveal-blur {
    opacity: 0;
    filter: blur(8px);
    transform: translateY(20px);
    transition: opacity 0.9s ease, filter 0.9s ease, transform 0.9s ease;
    will-change: opacity, filter, transform;
  }
  .reveal-blur.visible {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
  }

  .eyebrow {
    display: inline-flex; align-items: center; gap: 0.6rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--yellow);
    margin-bottom: 1.2rem;
  }
  .eyebrow::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--yellow);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px var(--yellow);
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 8px var(--yellow); }
    50% { opacity: 0.4; transform: scale(0.6); box-shadow: 0 0 16px var(--yellow); }
  }

  .section-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(2.2rem, 4.5vw, 3.8rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--white);
    text-transform: uppercase;
    margin-bottom: 1.2rem;
  }
  .section-title .y {
    color: var(--yellow);
    display: inline-block;
    position: relative;
  }
  .section-title .y::after {
    content: '';
    position: absolute;
    left: 0; bottom: 4px;
    width: 100%; height: 2px;
    background: var(--yellow);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s ease 0.3s;
  }
  .section-title.visible .y::after { transform: scaleX(1); }

  .section-sub {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 720px;
    margin-bottom: 4rem;
    line-height: 1.65;
  }

  /* ============ HERO ============ */
  .hero {
    min-height: calc(100vh - 70px);
    padding-top: 9rem;
    padding-bottom: 4rem;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
  }

  .hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
  }
  .hero-orb-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(244,226,42,0.22), transparent 65%);
    top: -150px; right: -150px;
    animation: orbFloat1 12s ease-in-out infinite;
  }
  .hero-orb-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(120,80,200,0.18), transparent 65%);
    bottom: 50px; left: -100px;
    animation: orbFloat2 15s ease-in-out infinite;
  }
  .hero-orb-3 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(244,226,42,0.1), transparent 65%);
    top: 40%; left: 50%;
    animation: orbFloat3 18s ease-in-out infinite;
  }
  @keyframes orbFloat1 {
    0%,100% { transform: translate(0,0) scale(1); }
    33% { transform: translate(-50px, 40px) scale(1.1); }
    66% { transform: translate(30px, -30px) scale(0.95); }
  }
  @keyframes orbFloat2 {
    0%,100% { transform: translate(0,0) scale(1); }
    50% { transform: translate(40px, -40px) scale(1.15); }
  }
  @keyframes orbFloat3 {
    0%,100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-30%, -60%) scale(1.2); }
  }

  .hero-content { position: relative; z-index: 2; max-width: 1000px; }

  .hero-badge {
    display: inline-flex; align-items: center; gap: 0.6rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--yellow);
    border: 1px solid var(--border-yellow);
    padding: 0.5rem 1rem;
    margin-bottom: 2.5rem;
    animation: fadeUp 0.7s ease both, badgeFloat 4s ease-in-out 1s infinite;
    background: rgba(244,226,42,0.04);
    transition: background 0.3s, transform 0.3s;
  }
  @keyframes badgeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
  }
  .hero-badge:hover {
    background: rgba(244,226,42,0.12);
    transform: translateY(-2px) scale(1.02);
  }
  .hero-badge::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--yellow);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--yellow);
    animation: pulse 2s ease-in-out infinite;
  }

  .hero-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(2.8rem, 7vw, 6rem);
    line-height: 1.0;
    letter-spacing: -0.025em;
    text-transform: uppercase;
    color: var(--white);
    margin-bottom: 2rem;
  }
  .hero-title .line {
    display: block;
    overflow: hidden;
    padding: 0.15em 0;
    margin: -0.15em 0;
  }
  .hero-title .word {
    display: inline-block;
    transform: translateY(110%);
    animation: wordReveal 1s cubic-bezier(0.215, 0.61, 0.355, 1) both;
    will-change: transform;
    padding-right: 0.18em;
  }
  @keyframes wordReveal {
    0%   { transform: translateY(110%); }
    100% { transform: translateY(0); }
  }
  .hero-title .line2 .word {
    color: var(--yellow);
    text-shadow: 0 0 60px rgba(244,226,42,0.4);
  }

  .hero-subtitle {
    font-size: 1.15rem;
    line-height: 1.65;
    color: var(--text-main);
    max-width: 580px;
    margin-bottom: 3rem;
    font-weight: 500;
    animation: fadeUp 0.7s 0.9s ease both;
  }

  .hero-actions {
    display: flex; align-items: center; gap: 1.5rem;
    animation: fadeUp 0.7s 1.05s ease both;
    flex-wrap: wrap;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  /* Scroll indicator */
  .scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    animation: fadeUp 0.7s 1.4s ease both;
    z-index: 2;
  }
  .scroll-hint-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--yellow), transparent);
    position: relative;
    overflow: hidden;
  }
  .scroll-hint-line::after {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 100%;
    height: 20px;
    background: var(--yellow);
    animation: scrollLine 2s ease-in-out infinite;
  }
  @keyframes scrollLine {
    0% { top: -20px; }
    100% { top: 40px; }
  }

  /* ============ BUTTONS ============ */
  .btn {
    font-family: 'Archivo', sans-serif;
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 700;
    padding: 1.1rem 2.2rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    border: none;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  .btn svg {
    transition: transform 0.3s;
  }
  .btn:hover svg {
    transform: translateX(4px);
  }
  .btn-primary {
    color: var(--bg-deep);
    background: var(--yellow);
    box-shadow: 0 0 0 rgba(244,226,42,0);
    transition: box-shadow 0.3s, transform 0.3s;
  }
  .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(244,226,42,0.5);
  }
  .btn-primary::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
    transition: left 0.6s;
  }
  .btn-primary:hover::after { left: 100%; }

  .btn-ghost {
    color: var(--white);
    background: transparent;
    border: 1px solid var(--border);
    transition: border-color 0.3s, color 0.3s, background 0.3s;
  }
  .btn-ghost:hover {
    border-color: var(--yellow);
    color: var(--yellow);
    background: rgba(244,226,42,0.05);
  }

  /* ============ HERO STATS STRIP ============ */
  .hero-stats {
    margin-top: 4rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    animation: fadeUp 0.7s 1.2s ease both;
    position: relative;
    z-index: 2;
  }
  .hero-stat {
    padding: 1.8rem 1.5rem;
    border-right: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: background 0.4s;
  }
  .hero-stat::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--yellow);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s;
  }
  .hero-stat:hover { background: rgba(244,226,42,0.03); }
  .hero-stat:hover::before { transform: scaleX(1); }
  .hero-stat:last-child { border-right: none; }
  .hero-stat-num {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    color: var(--yellow);
    line-height: 1;
    margin-bottom: 0.4rem;
    letter-spacing: -0.02em;
    transition: text-shadow 0.4s;
  }
  .hero-stat:hover .hero-stat-num {
    text-shadow: 0 0 30px rgba(244,226,42,0.6);
  }
  .hero-stat-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
  }

  /* ============ PROPUESTA ============ */
  .propuesta {
    background: var(--bg-deep);
    position: relative;
    overflow: hidden;
  }
  .propuesta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .prop-card {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), border-color 0.4s, box-shadow 0.4s;
  }
  .prop-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 0; height: 3px;
    background: linear-gradient(90deg, var(--yellow), var(--yellow-glow));
    transition: width 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 0 12px var(--yellow);
  }
  .prop-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(244,226,42,0.08), transparent 50%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
  }
  .prop-card:hover {
    border-color: var(--border-yellow);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(244,226,42,0.1);
  }
  .prop-card:hover::before { width: 100%; }
  .prop-card:hover::after { opacity: 1; }
  .prop-card:hover .prop-icon {
    transform: rotate(360deg) scale(1.15);
    color: var(--yellow-glow);
  }
  .prop-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--yellow);
    letter-spacing: 0.18em;
    margin-bottom: 1.5rem;
    display: block;
    position: relative;
    z-index: 1;
  }
  .prop-icon {
    width: 50px; height: 50px;
    margin-bottom: 1.5rem;
    color: var(--yellow);
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), color 0.4s;
    position: relative;
    z-index: 1;
  }
  .prop-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.4rem;
    color: var(--white);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
  }
  .prop-desc {
    color: var(--text-muted);
    line-height: 1.65;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
  }

  /* ============ SERVICIOS ============ */
  .servicios {
    background: var(--bg-mid);
    max-width: none;
    padding-left: 0;
    padding-right: 0;
    position: relative;
    overflow: hidden;
  }
  .servicios-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
  }
  .servicios-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .serv-card {
    background: var(--bg-deep);
    border: 1px solid var(--border);
    padding: 3rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.4s, transform 0.4s;
  }
  .serv-card::after {
    content: '';
    position: absolute;
    top: -50%; right: -50%;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(244,226,42,0.08), transparent 70%);
    pointer-events: none;
    transition: transform 0.8s ease;
  }
  .serv-card:hover {
    border-color: var(--border-yellow);
    transform: translateY(-4px);
  }
  .serv-card:hover::after { transform: scale(1.5) rotate(45deg); }
  .serv-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--yellow);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    border: 1px solid var(--border-yellow);
    padding: 0.35rem 0.8rem;
    display: inline-block;
    margin-bottom: 1.8rem;
    position: relative;
    overflow: hidden;
  }
  .serv-tag::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--yellow);
    transform: translateX(-100%);
    transition: transform 0.4s;
    z-index: -1;
  }
  .serv-card:hover .serv-tag {
    color: var(--bg-deep);
    border-color: var(--yellow);
  }
  .serv-card:hover .serv-tag::before {
    transform: translateX(0);
  }
  .serv-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 0.6rem;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    position: relative;
    z-index: 1;
  }
  .serv-sub {
    font-family: 'JetBrains Mono', monospace;
    color: var(--yellow);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    letter-spacing: 0.04em;
    position: relative;
    z-index: 1;
  }
  .serv-desc {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 2rem;
    font-size: 0.97rem;
    position: relative;
    z-index: 1;
  }
  .serv-features { list-style: none; position: relative; z-index: 1; }
  .serv-features li {
    color: var(--text-main);
    padding: 0.6rem 0;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.92rem;
    transition: padding-left 0.3s, color 0.3s;
  }
  .serv-features li:hover {
    padding-left: 0.5rem;
    color: var(--yellow);
  }
  .serv-features li::before {
    content: '\2192';
    color: var(--yellow);
    font-weight: 700;
    transition: transform 0.3s;
  }
  .serv-features li:hover::before {
    transform: translateX(4px);
  }

  /* ============ FILOSOFIA ============ */
  .filosofia { background: var(--bg-deep); }
  .filo-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 5rem;
    align-items: start;
  }
  .filo-quote {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(1.6rem, 2.6vw, 2.2rem);
    line-height: 1.15;
    color: var(--white);
    letter-spacing: -0.01em;
    text-transform: uppercase;
    position: relative;
    padding-left: 2rem;
  }
  .filo-quote::before {
    content: '';
    position: absolute;
    left: 0; top: 0;
    width: 4px; height: 100%;
    background: linear-gradient(to bottom, var(--yellow), transparent);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 1s ease 0.3s;
  }
  .filo-quote.visible::before { transform: scaleY(1); }
  .filo-quote .y { color: var(--yellow); }
  .filo-text { color: var(--text-main); line-height: 1.8; }
  .filo-text p { margin-bottom: 1.4rem; }
  .filo-text p:last-child {
    font-family: 'Archivo Black', sans-serif;
    color: var(--yellow);
    font-size: 1.2rem;
    line-height: 1.35;
    text-transform: uppercase;
    letter-spacing: -0.005em;
    margin-top: 2rem;
    padding-top: 1.8rem;
    border-top: 1px solid var(--border-yellow);
  }
  .filo-formula {
    margin-top: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    padding: 3rem 2rem;
    border: 1px solid var(--border);
    background:
      radial-gradient(ellipse 60% 80% at 50% 50%, rgba(244,226,42,0.08), transparent 70%),
      var(--bg-mid);
    position: relative;
    overflow: hidden;
  }
  .filo-formula::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(244,226,42,0.06), transparent);
    animation: sweep 4s ease-in-out infinite;
  }
  @keyframes sweep {
    0%, 100% { left: -100%; }
    50% { left: 100%; }
  }
  .formula-item {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    transition: transform 0.4s, color 0.4s;
    position: relative;
    z-index: 1;
  }
  .formula-item:hover {
    transform: translateY(-6px) scale(1.05);
    color: var(--yellow);
  }
  .formula-op {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--yellow);
    animation: pulse 2.5s ease-in-out infinite;
    position: relative;
    z-index: 1;
  }

  /* ============ PORQUE ============ */
  .porque { background: var(--bg-mid); max-width: none; padding-left: 0; padding-right: 0; }
  .porque-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
  }
  .porque-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }
  .porque-card {
    padding: 5rem 2.5rem 3rem;
    position: relative;
    transition: background 0.4s;
    overflow: hidden;
  }
  .porque-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(244,226,42,0.06), transparent 50%);
    opacity: 0;
    transition: opacity 0.4s;
  }
  .porque-card:hover::before { opacity: 1; }
  .porque-card:hover .porque-num {
    opacity: 0.12;
  }
  .porque-num {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(7rem, 12vw, 10rem);
    color: var(--white);
    opacity: 0.06;
    position: absolute;
    top: -0.15em;
    left: 0.5rem;
    line-height: 1;
    letter-spacing: -0.03em;
    pointer-events: none;
    transition: opacity 0.4s;
    z-index: 0;
  }
  .porque-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.4rem;
    color: var(--white);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    position: relative;
    z-index: 1;
  }
  .porque-desc {
    color: var(--text-muted);
    line-height: 1.65;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
  }

  /* ============ CONTACTO ============ */
  .contacto {
    background: var(--bg-deep);
    position: relative;
    overflow: hidden;
  }
  .contacto-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
  }
  .contacto-headline {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(2.2rem, 4.5vw, 3.8rem);
    line-height: 1.0;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
  }
  .contacto-headline .y { color: var(--yellow); }
  .contacto-text {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
  }
  .contacto-info { list-style: none; }
  .contacto-info li {
    display: flex; align-items: center; gap: 1rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--text-main);
    transition: padding-left 0.3s;
  }
  .contacto-info li:hover { padding-left: 0.5rem; }
  .contacto-info li:last-child { border-bottom: 1px solid var(--border); }
  .contacto-info svg {
    color: var(--yellow);
    flex-shrink: 0;
    transition: transform 0.3s;
  }
  .contacto-info li:hover svg {
    transform: scale(1.2) rotate(-8deg);
  }
  .contacto-info a { color: var(--text-main); text-decoration: none; transition: color 0.2s; }
  .contacto-info a:hover { color: var(--yellow); }

  .form {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    padding: 2.5rem;
    transition: border-color 0.4s;
  }
  .form:focus-within { border-color: var(--border-yellow); }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .form-group {
    margin-bottom: 1.4rem;
    position: relative;
  }
  .form-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
  }
  .form-group:focus-within .form-label { color: var(--yellow); }
  .form-label .req { color: var(--yellow); }
  .form-input, .form-textarea {
    width: 100%;
    background: var(--bg-deep);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.9rem 1rem;
    font-family: 'Archivo', sans-serif;
    font-size: 0.95rem;
    transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
  }
  .form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--yellow);
    background: #23232e;
    box-shadow: 0 0 0 3px rgba(244,226,42,0.1);
  }
  .form-textarea { resize: vertical; min-height: 130px; }
  .form .btn-primary { width: 100%; justify-content: center; margin-top: 0.5rem; }

  /* ============ FOOTER ============ */
  footer {
    background: var(--bg-mid);
    padding: 5rem 3rem 2rem;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
  }
  .footer-inner { max-width: 1400px; margin: 0 auto; }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--border);
  }
  .footer-logo {
    font-family: 'Archivo Black', sans-serif;
    font-size: 2rem;
    color: var(--white);
    margin-bottom: 1rem;
    display: flex; align-items: baseline; gap: 0.05rem;
  }
  .footer-logo .dot {
    color: var(--yellow);
    animation: dotPulse 2s ease-in-out infinite;
  }
  .footer-tag {
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 380px;
    font-size: 0.95rem;
  }
  .footer-col h4 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--yellow);
    margin-bottom: 1.5rem;
  }
  .footer-col ul { list-style: none; }
  .footer-col li { margin-bottom: 0.7rem; }
  .footer-col a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.92rem;
    transition: color 0.2s, padding-left 0.3s;
    display: inline-block;
  }
  .footer-col a:hover {
    color: var(--yellow);
    padding-left: 0.4rem;
  }
  .footer-bottom {
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .footer-bottom a { color: var(--text-dim); text-decoration: none; transition: color 0.2s; }
  .footer-bottom a:hover { color: var(--yellow); }
  .footer-bottom-links { display: flex; gap: 2rem; }

  /* ============ OBJETOS ANIMADOS ============ */

  /* Constelacion SVG en el hero */
  .hero-constellation {
    position: absolute;
    right: 5%;
    top: 18%;
    width: 280px;
    height: 280px;
    pointer-events: none;
    z-index: 1;
    opacity: 0.85;
    animation: constellationFloat 14s ease-in-out infinite;
  }
  @keyframes constellationFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-25px) rotate(8deg); }
  }
  .hero-constellation .c-dot {
    fill: var(--yellow);
    filter: drop-shadow(0 0 6px var(--yellow));
    animation: cDotPulse 3s ease-in-out infinite;
  }
  .hero-constellation .c-dot:nth-child(2) { animation-delay: 0.4s; }
  .hero-constellation .c-dot:nth-child(3) { animation-delay: 0.8s; }
  .hero-constellation .c-dot:nth-child(4) { animation-delay: 1.2s; }
  .hero-constellation .c-dot:nth-child(5) { animation-delay: 1.6s; }
  .hero-constellation .c-dot:nth-child(6) { animation-delay: 2.0s; }
  .hero-constellation .c-dot:nth-child(7) { animation-delay: 2.4s; }
  @keyframes cDotPulse {
    0%, 100% { opacity: 0.4; r: 2.5; }
    50% { opacity: 1; r: 4; }
  }
  .hero-constellation .c-line {
    stroke: var(--yellow);
    stroke-width: 0.8;
    fill: none;
    opacity: 0.35;
    stroke-dasharray: 4 6;
    animation: dash 30s linear infinite;
  }
  @keyframes dash {
    to { stroke-dashoffset: -200; }
  }

  /* Anillos orbitando */
  .orbit-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(244,226,42,0.2);
    pointer-events: none;
    z-index: 1;
  }
  .orbit-ring::before {
    content: '';
    position: absolute;
    width: 10px; height: 10px;
    background: var(--yellow);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--yellow);
    top: -5px;
    left: calc(50% - 5px);
  }
  .orbit-1 {
    width: 180px; height: 180px;
    left: 8%;
    bottom: 18%;
    animation: spin 20s linear infinite;
  }
  .orbit-2 {
    width: 120px; height: 120px;
    left: 15%;
    bottom: 24%;
    animation: spin 14s linear infinite reverse;
    opacity: 0.5;
  }
  @keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
  }

  /* Lineas tecnicas decorativas */
  .tech-corner {
    position: absolute;
    pointer-events: none;
    z-index: 1;
    color: var(--yellow);
    opacity: 0.4;
  }
  .tech-corner-tl { top: 90px; left: 30px; }
  .tech-corner-br { bottom: 30px; right: 30px; }
  .tech-corner svg { animation: flicker 4s ease-in-out infinite; }
  @keyframes flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
  }

  /* Satelite girando */
  .satellite {
    position: absolute;
    width: 60px;
    height: 60px;
    pointer-events: none;
    z-index: 1;
    animation: satellitePath 25s linear infinite;
  }
  @keyframes satellitePath {
    0%   { transform: translate(0, 0) rotate(0deg); }
    25%  { transform: translate(40px, 30px) rotate(90deg); }
    50%  { transform: translate(0, 60px) rotate(180deg); }
    75%  { transform: translate(-40px, 30px) rotate(270deg); }
    100% { transform: translate(0, 0) rotate(360deg); }
  }
  .satellite svg { width: 100%; height: 100%; color: var(--yellow); }

  /* Flecha que se dibuja sola en propuesta */
  .draw-arrow {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    color: var(--yellow);
    opacity: 0.4;
    transition: opacity 0.4s, transform 0.4s;
  }
  .prop-card:hover .draw-arrow {
    opacity: 1;
    transform: translate(3px, -3px) scale(1.1);
  }
  .draw-arrow path {
    stroke-dasharray: 60;
    stroke-dashoffset: 60;
    animation: drawArrow 2s ease-out forwards;
  }
  .reveal.visible .draw-arrow path { animation-delay: 0.3s; }
  @keyframes drawArrow {
    to { stroke-dashoffset: 0; }
  }

  /* Forma geometrica rotando en servicios */
  .geo-shape {
    position: absolute;
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
  }
  .geo-shape svg {
    width: 100%; height: 100%;
    color: var(--yellow);
    animation: spin 30s linear infinite;
  }
  .geo-shape-1 {
    width: 180px; height: 180px;
    top: 8%; right: 5%;
  }
  .geo-shape-2 {
    width: 130px; height: 130px;
    bottom: 8%; left: 4%;
  }
  .geo-shape-2 svg { animation-direction: reverse; animation-duration: 22s; }

  /* Orbita de Lean + IA */
  .formula-orbit {
    position: absolute;
    width: 70%;
    max-width: 600px;
    height: 70%;
    max-height: 200px;
    border: 1px dashed rgba(244,226,42,0.25);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    animation: spin 25s linear infinite;
  }
  .formula-orbit::before, .formula-orbit::after {
    content: '';
    position: absolute;
    width: 8px; height: 8px;
    background: var(--yellow);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--yellow);
  }
  .formula-orbit::before { top: -4px; left: calc(50% - 4px); }
  .formula-orbit::after  { bottom: -4px; left: calc(50% - 4px); opacity: 0.5; }

  /* Avion de papel en contacto */
  .paper-plane {
    position: absolute;
    width: 50px;
    height: 50px;
    top: 10%;
    right: -60px;
    color: var(--yellow);
    pointer-events: none;
    z-index: 1;
    animation: planeFlight 12s ease-in-out infinite;
  }
  @keyframes planeFlight {
    0%   { transform: translate(0, 0) rotate(-15deg); opacity: 0; }
    10%  { opacity: 1; }
    50%  { transform: translate(-60vw, 80px) rotate(-25deg); opacity: 1; }
    90%  { opacity: 0; }
    100% { transform: translate(-100vw, 30px) rotate(-15deg); opacity: 0; }
  }

  /* Bracket decorativo */
  .bracket {
    position: absolute;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--yellow);
    opacity: 0.5;
    letter-spacing: 0.2em;
    pointer-events: none;
    z-index: 1;
    animation: bracketBlink 2s ease-in-out infinite;
  }
  @keyframes bracketBlink {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.15; }
  }

  /* ============ RESPONSIVE ============ */
  @media (max-width: 980px) {
    .hero-constellation, .orbit-ring, .satellite, .paper-plane,
    .geo-shape, .tech-corner, .formula-orbit, .bracket { display: none; }
    section { padding: 5rem 1.5rem; }
    .servicios-inner, .porque-inner { padding: 0 1.5rem; }
    .nav-inner { padding: 1rem 1.5rem; }
    .nav-links { display: none; }
    .nav-toggle { display: block; }
    .nav-links.open {
      display: flex;
      position: absolute;
      top: 100%; left: 0; right: 0;
      flex-direction: column;
      background: var(--nav-bg);
      padding: 2rem;
      border-bottom: 1px solid var(--yellow);
      gap: 1.5rem;
    }
    .nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(8px, 8px); }
    .nav-toggle.open span:nth-child(2) { opacity: 0; }
    .nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(8px, -8px); }
    .hero { padding-top: 7rem; }
    .hero-stats { grid-template-columns: 1fr; }
    .hero-stat { border-right: none; border-bottom: 1px solid var(--border); }
    .hero-stat:last-child { border-bottom: none; }
    .propuesta-grid, .servicios-grid, .filo-grid, .porque-grid, .contacto-grid, .footer-grid {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
    .porque-card { padding: 4rem 1.5rem 2.5rem; }
    .form-row { grid-template-columns: 1fr; }
    .scroll-hint { display: none; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
  }

  /* ============ CHAT WIDGET ============ */
  .chat-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: var(--yellow);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 24px rgba(244,226,42,0.4);
    transition: transform 0.3s, box-shadow 0.3s;
  }
  .chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 32px rgba(244,226,42,0.6);
  }
  .chat-toggle svg {
    width: 28px;
    height: 28px;
    color: var(--bg-deep);
    transition: transform 0.3s;
  }
  .chat-toggle.open svg {
    transform: rotate(90deg);
  }

  .chat-window {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    width: 400px;
    max-width: calc(100vw - 2rem);
    height: 520px;
    max-height: calc(100vh - 8rem);
    background: var(--bg-mid);
    border: 1px solid var(--border-yellow);
    border-radius: 12px;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px rgba(244,226,42,0.08);
  }
  .chat-window.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }

  .chat-header {
    background: var(--bg-deep);
    padding: 1rem 1.2rem;
    border-bottom: 1px solid var(--border-yellow);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    flex-shrink: 0;
  }
  .chat-header-dot {
    width: 10px;
    height: 10px;
    background: var(--yellow);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--yellow);
    animation: pulse 2s ease-in-out infinite;
  }
  .chat-header-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 0.9rem;
    color: var(--white);
    letter-spacing: 0.02em;
  }
  .chat-header-sub {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    margin-left: auto;
  }
  .chat-header-close {
    display: none;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.3rem;
    margin-left: 0.5rem;
    transition: color 0.2s;
  }
  .chat-header-close:hover {
    color: var(--yellow);
  }
  .chat-header-close svg {
    width: 18px;
    height: 18px;
  }
  @media (max-width: 768px) {
    .chat-header-close {
      display: flex;
      align-items: center;
      justify-content: center;
    }
  }

  .chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border-yellow) transparent;
  }
  .chat-messages::-webkit-scrollbar { width: 4px; }
  .chat-messages::-webkit-scrollbar-track { background: transparent; }
  .chat-messages::-webkit-scrollbar-thumb { background: var(--border-yellow); border-radius: 2px; }

  .chat-msg {
    max-width: 85%;
    padding: 0.75rem 1rem;
    font-size: 0.88rem;
    line-height: 1.55;
    border-radius: 12px;
    word-wrap: break-word;
    animation: fadeUp 0.3s ease;
  }
  .chat-msg-bot {
    background: var(--bg-deep);
    color: var(--text-main);
    border: 1px solid var(--border);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
  }
  .chat-msg-user {
    background: var(--yellow);
    color: var(--bg-deep);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    font-weight: 500;
  }

  .chat-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0.75rem 1rem;
    background: var(--bg-deep);
    border: 1px solid var(--border);
    border-radius: 12px;
    border-bottom-left-radius: 4px;
    align-self: flex-start;
    max-width: 80px;
  }
  .chat-typing span {
    width: 6px;
    height: 6px;
    background: var(--yellow);
    border-radius: 50%;
    animation: typingDot 1.4s ease-in-out infinite;
  }
  .chat-typing span:nth-child(2) { animation-delay: 0.2s; }
  .chat-typing span:nth-child(3) { animation-delay: 0.4s; }
  @keyframes typingDot {
    0%, 60%, 100% { opacity: 0.3; transform: scale(0.8); }
    30% { opacity: 1; transform: scale(1.2); }
  }

  .chat-input-area {
    padding: 0.8rem 1rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.6rem;
    background: var(--bg-deep);
    flex-shrink: 0;
  }
  .chat-input {
    flex: 1;
    background: var(--bg-mid);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.7rem 0.9rem;
    font-family: 'Archivo', sans-serif;
    font-size: 0.88rem;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.3s;
  }
  .chat-input:focus {
    border-color: var(--yellow);
  }
  .chat-input::placeholder {
    color: var(--text-dim);
  }
  .chat-send {
    background: var(--yellow);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, box-shadow 0.2s;
    flex-shrink: 0;
  }
  .chat-send:hover {
    transform: scale(1.08);
    box-shadow: 0 4px 16px rgba(244,226,42,0.4);
  }
  .chat-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
  }
  .chat-send svg {
    width: 18px;
    height: 18px;
    color: var(--bg-deep);
  }

  @media (max-width: 768px) {
    .chat-window {
      right: 0;
      bottom: 0;
      left: 0;
      width: 100vw;
      width: 100dvw;
      height: 100vh;
      height: 100dvh;
      max-width: 100vw;
      max-height: 100vh;
      max-height: 100dvh;
      border-radius: 0;
      border: none;
      padding-top: env(safe-area-inset-top);
      padding-bottom: env(safe-area-inset-bottom);
    }
    .chat-window.open {
      transform: translateY(0) scale(1);
    }
    .chat-header {
      padding: 0.8rem 1rem;
      padding-top: calc(0.8rem + env(safe-area-inset-top));
    }
    .chat-header-title {
      font-size: 0.85rem;
    }
    .chat-messages {
      padding: 0.8rem;
      gap: 0.6rem;
    }
    .chat-msg {
      max-width: 90%;
      font-size: 0.9rem;
    }
    .chat-input-area {
      padding: 0.6rem 0.8rem;
      padding-bottom: calc(0.6rem + env(safe-area-inset-bottom));
    }
    .chat-input {
      font-size: 16px; /* prevents iOS zoom on focus */
      padding: 0.65rem 0.8rem;
    }
    .chat-toggle {
      bottom: 1.2rem;
      right: 1.2rem;
      width: 54px;
      height: 54px;
    }
    .chat-toggle svg {
      width: 24px;
      height: 24px;
    }
  }

  /* ============ MINI HERO (SUBPAGES) ============ */
  .hero-mini {
    padding-top: 10rem;
    padding-bottom: 5rem;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    text-align: center;
  }
  .hero-mini .hero-badge {
    animation: fadeUp 0.5s ease both;
  }
  .hero-mini-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(2.4rem, 6vw, 4.5rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
    text-transform: uppercase;
    color: var(--white);
    margin-bottom: 1.5rem;
    animation: fadeUp 0.6s 0.15s ease both;
  }
  .hero-mini-title .y { color: var(--yellow); }
  .hero-mini-sub {
    font-size: 1.15rem;
    line-height: 1.65;
    color: var(--text-muted);
    max-width: 680px;
    margin: 0 auto 2rem;
    animation: fadeUp 0.7s 0.3s ease both;
  }
  .hero-mini-divider {
    width: 60px;
    height: 3px;
    background: var(--yellow);
    margin: 0 auto;
    box-shadow: 0 0 12px var(--yellow);
    animation: fadeUp 0.7s 0.45s ease both;
  }

  /* ============ EXPANDED CONTENT (SUBPAGES) ============ */
  .expanded-section {
    position: relative;
    z-index: 1;
    padding: 6rem 3rem;
    max-width: 1400px;
    margin: 0 auto;
  }

  .detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 5rem;
  }

  .detail-card {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.4s, border-color 0.4s, box-shadow 0.4s;
  }
  .detail-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 0; height: 3px;
    background: linear-gradient(90deg, var(--yellow), var(--yellow-glow));
    transition: width 0.5s;
    box-shadow: 0 0 12px var(--yellow);
  }
  .detail-card:hover {
    border-color: var(--border-yellow);
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 30px rgba(244,226,42,0.08);
  }
  .detail-card:hover::before { width: 100%; }

  .detail-card-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--yellow);
    letter-spacing: 0.18em;
    margin-bottom: 1rem;
    display: block;
  }
  .detail-card-icon {
    width: 44px; height: 44px;
    margin-bottom: 1.2rem;
    color: var(--yellow);
    transition: transform 0.6s;
  }
  .detail-card:hover .detail-card-icon {
    transform: rotate(360deg) scale(1.1);
  }
  .detail-card-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: -0.01em;
  }
  .detail-card-desc {
    color: var(--text-muted);
    line-height: 1.7;
    font-size: 0.93rem;
  }

  .process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
  }
  .process-step {
    text-align: center;
    padding: 2rem 1.5rem;
    border: 1px solid var(--border);
    background: var(--bg-mid);
    position: relative;
    transition: border-color 0.4s, transform 0.4s;
  }
  .process-step:hover {
    border-color: var(--border-yellow);
    transform: translateY(-4px);
  }
  .process-step-num {
    font-family: 'Archivo Black', sans-serif;
    font-size: 2.5rem;
    color: var(--yellow);
    opacity: 0.3;
    margin-bottom: 0.8rem;
    line-height: 1;
  }
  .process-step-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1rem;
    color: var(--white);
    text-transform: uppercase;
    margin-bottom: 0.7rem;
  }
  .process-step-desc {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.6;
  }

  .cta-block {
    text-align: center;
    padding: 5rem 2rem;
    border: 1px solid var(--border);
    background:
      radial-gradient(ellipse 60% 80% at 50% 50%, rgba(244,226,42,0.06), transparent 70%),
      var(--bg-mid);
    margin-top: 4rem;
    position: relative;
    overflow: hidden;
  }
  .cta-block::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(244,226,42,0.04), transparent);
    animation: sweep 5s ease-in-out infinite;
  }
  .cta-block-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    color: var(--white);
    text-transform: uppercase;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
  }
  .cta-block-title .y { color: var(--yellow); }
  .cta-block-sub {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.05rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
  }
  .cta-block .btn { position: relative; z-index: 1; }

  /* Comparison table */
  .compare-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 3rem;
  }
  .compare-table th,
  .compare-table td {
    padding: 1.2rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.92rem;
  }
  .compare-table th {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--yellow);
    background: var(--bg-deep);
    border-bottom: 2px solid var(--border-yellow);
  }
  .compare-table td {
    color: var(--text-main);
    background: var(--bg-mid);
    transition: background 0.3s;
  }
  .compare-table tr:hover td {
    background: var(--bg-soft);
  }
  .compare-table td:first-child {
    font-weight: 600;
    color: var(--white);
  }

  /* FAQ */
  .faq-list {
    max-width: 800px;
    margin: 3rem auto 0;
  }
  .faq-item {
    border-bottom: 1px solid var(--border);
  }
  .faq-question {
    width: 100%;
    background: none;
    border: none;
    color: var(--white);
    font-family: 'Archivo', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    text-align: left;
    padding: 1.5rem 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.3s;
  }
  .faq-question:hover { color: var(--yellow); }
  .faq-question::after {
    content: '+';
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.4rem;
    color: var(--yellow);
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 1rem;
  }
  .faq-item.open .faq-question::after {
    transform: rotate(45deg);
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
  }
  .faq-item.open .faq-answer {
    max-height: 300px;
    padding-bottom: 1.5rem;
  }
  .faq-answer p {
    color: var(--text-muted);
    line-height: 1.7;
    font-size: 0.95rem;
  }

  /* Metrics grid */
  .metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 3rem 0;
  }
  .metric-card {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    transition: border-color 0.4s, transform 0.4s;
  }
  .metric-card:hover {
    border-color: var(--border-yellow);
    transform: translateY(-4px);
  }
  .metric-num {
    font-family: 'Archivo Black', sans-serif;
    font-size: 2.4rem;
    color: var(--yellow);
    line-height: 1;
    margin-bottom: 0.5rem;
  }
  .metric-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
  }

  @media (max-width: 980px) {
    .hero-mini { padding-top: 7rem; padding-bottom: 3rem; }
    .expanded-section { padding: 4rem 1.5rem; }
    .detail-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr; }
  }