:root {
    --deep: #020b18;
    --abyss: #030f20;
    --ocean: #041428;
    --blue-deep: #0a2a4a;
    --blue-mid: #0d3d6e;
    --cyan: #00c8e0;
    --cyan-glow: #00e5ff;
    --coral: #ff6b47;
    --coral-soft: #ff9070;
    --gold: #f0c060;
    --white: #e8f4ff;
    --white-dim: rgba(232,244,255,0.6);
    /* online takip */
    --ocean-deep:    #06131f;
    --ocean-mid:     #0a2030;
    --ocean-surface: #0e2d42;
    --teal:          #00b4d8;
    --teal-light:    #90e0ef;
    --teal-pale:     #ffffff;
    --coral:         #e07a5f;
    --text-primary:  #dff6ff;
    --text-muted:    #6fa8be;
    --glass-bg:      rgba(10, 32, 48, 0.65);
    --glass-border:  rgba(0, 180, 216, 0.18);
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--deep);
    color: var(--white);
    font-family: 'Outfit', sans-serif;
    overflow-x: hidden;
    cursor: none;
  }

  /* Custom cursor */
  .cursor {
    position: fixed;
    width: 12px; height: 12px;
    background: var(--cyan-glow);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s;
    mix-blend-mode: screen;
    box-shadow: 0 0 20px var(--cyan-glow), 0 0 40px var(--cyan);
  }
  .cursor-ring {
    position: fixed;
    width: 36px; height: 36px;
    border: 1px solid rgba(0,200,224,0.4);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.15s ease, width 0.2s, height 0.2s;
  }

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 24px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, rgba(2,11,24,0.95), transparent);
    backdrop-filter: blur(2px);
  }

  .site-navbar {
    min-height: 88px;
  }

  .navbar-brand {
    font-family: 'Playfair Display', serif;
    font-size: 1.25rem;
    letter-spacing: 0.08em;
  }

  .navbar-toggler:focus {
    box-shadow: none;
  }

  .navbar-collapse {
    gap: 24px;
  }

  .site-nav-links {
    margin-left: auto;
    margin-right: auto;
  }

  .site-nav-cta {
    margin-left: auto;
  }

  .logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .logo-dot {
    width: 8px; height: 8px;
    background: var(--cyan-glow);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--cyan-glow);
    animation: pulse 2s ease-in-out infinite;
  }

  nav ul {
    list-style: none;
    display: flex;
    gap: 40px;
  }
  nav a {
    color: var(--white-dim);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    transition: color 0.3s;
  }
  nav a:hover { color: var(--cyan-glow); }

  .nav-btn {
    background: transparent;
    border: 1px solid var(--cyan);
    color: var(--cyan);
    padding: 10px 24px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: none;
    transition: all 0.3s;
  }
  .nav-btn:hover {
    background: var(--cyan);
    color: var(--deep);
  }

  /* ── HERO ── */
  .hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }

  /* Ocean depth background */
  .ocean-bg {
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 80% 60% at 50% 30%, rgba(13,61,110,0.5) 0%, transparent 70%),
      radial-gradient(ellipse 40% 40% at 20% 70%, rgba(0,200,224,0.08) 0%, transparent 60%),
      radial-gradient(ellipse 60% 50% at 80% 60%, rgba(0,200,224,0.06) 0%, transparent 60%),
      linear-gradient(180deg, #020b18 0%, #030f20 40%, #041428 100%);
  }

  /* Light rays */
  .rays {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
  }
  .ray {
    position: absolute;
    top: -20%;
    width: 2px;
    height: 130%;
    background: linear-gradient(to bottom, rgba(0,229,255,0.15), transparent);
    transform-origin: top center;
    animation: sway 6s ease-in-out infinite;
  }
  .ray:nth-child(1) { left: 25%; transform: rotate(-8deg); animation-delay: 0s; }
  .ray:nth-child(2) { left: 35%; transform: rotate(-3deg); width: 3px; background: linear-gradient(to bottom, rgba(0,229,255,0.2), transparent); animation-delay: -1s; }
  .ray:nth-child(3) { left: 50%; transform: rotate(2deg); animation-delay: -2.5s; }
  .ray:nth-child(4) { left: 62%; transform: rotate(6deg); width: 2px; animation-delay: -1.5s; }
  .ray:nth-child(5) { left: 75%; transform: rotate(10deg); animation-delay: -3s; }
  .ray:nth-child(6) { left: 42%; transform: rotate(-1deg); width: 4px; background: linear-gradient(to bottom, rgba(0,229,255,0.1), transparent); animation-delay: -4s; }

  @keyframes sway {
    0%, 100% { transform: rotate(var(--r, -8deg)) scaleX(1); }
    50% { transform: rotate(calc(var(--r, -8deg) + 3deg)) scaleX(1.2); }
  }

  /* Bubbles */
  .bubbles { position: absolute; inset: 0; pointer-events: none; }
  .bubble {
    position: absolute;
    bottom: -20px;
    border-radius: 50%;
    border: 1px solid rgba(0,200,224,0.3);
    animation: rise linear infinite;
  }
  @keyframes rise {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-110vh) translateX(30px); opacity: 0; }
  }

  /* Particles */
  .particles { position: absolute; inset: 0; pointer-events: none; }
  .particle {
    position: absolute;
    width: 2px; height: 2px;
    background: rgba(0,200,224,0.6);
    border-radius: 50%;
    animation: drift linear infinite;
  }
  @keyframes drift {
    0% { transform: translateY(100vh) translateX(0); opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 0.5; }
    100% { transform: translateY(-10vh) translateX(-40px); opacity: 0; }
  }

  .hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 40px;
  }

  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeUp 1s ease 0.3s forwards;
  }
  .hero-eyebrow::before, .hero-eyebrow::after {
    content: '';
    display: block;
    width: 40px; height: 1px;
    background: var(--cyan);
    opacity: 0.5;
  }

  .hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3.5rem, 8vw, 7.5rem);
    font-weight: 400;
    line-height: 1.0;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    opacity: 0;
    animation: fadeUp 1s ease 0.6s forwards;
  }
  .hero-title em {
    font-style: italic;
    color: var(--cyan-glow);
    text-shadow: 0 0 40px rgba(0,229,255,0.4);
  }
  .hero-title-sub {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.5rem, 3vw, 2.8rem);
    font-weight: 400;
    color: var(--white-dim);
    letter-spacing: 0.05em;
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeUp 1s ease 0.8s forwards;
  }

  .hero-desc {
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--white-dim);
    line-height: 1.8;
    max-width: 560px;
    margin: 0 auto 48px;
    opacity: 0;
    animation: fadeUp 1s ease 1s forwards;
  }

  .hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: fadeUp 1s ease 1.2s forwards;
  }

  .btn-primary {
    background: var(--cyan);
    color: var(--deep);
    border: none;
    padding: 16px 40px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: none;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
  }
  .btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--cyan-glow);
    transform: translateX(-100%);
    transition: transform 0.3s;
  }
  .btn-primary:hover::after { transform: translateX(0); }
  .btn-primary span { position: relative; z-index: 1; }

  .btn-ghost {
    background: transparent;
    color: var(--white-dim);
    border: none;
    padding: 16px 40px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: color 0.3s;
  }
  .btn-ghost:hover { color: var(--white); }
  .btn-ghost svg { width: 20px; height: 20px; }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* Scroll indicator */
  .scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(232,244,255,0.3);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    animation: fadeUp 1s ease 2s forwards;
    opacity: 0;
  }
  .scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, rgba(0,200,224,0.5), transparent);
    animation: scrollAnim 2s ease-in-out infinite;
  }
  @keyframes scrollAnim {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
  }

  /* ── FEATURES ── */
  .section {
    padding: 120px 60px;
    max-width: 1400px;
    margin: 0 auto;
  }

  .section-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: end;
    margin-bottom: 80px;
  }

  .section-label {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 16px;
  }

  .section-title {
    font-size: clamp(1.0rem, 2vw, 3rem);
    font-weight: 400;
    line-height: 1.20;
  }

  .section-body {
    font-size: 1rem;
    font-weight: 300;
    color: var(--white-dim);
    line-height: 1.9;
  }

  .features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
  }

  .feature-card {
    background: var(--ocean);
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
    transition: background 0.4s;
  }
  .feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--cyan), transparent);
    opacity: 0;
    transition: opacity 0.4s;
  }
  .feature-card:hover { background: rgba(13,61,110,0.4); }
  .feature-card:hover::before { opacity: 1; }

  .feature-icon {
    width: 48px; height: 48px;
    margin-bottom: 28px;
    position: relative;
  }
  .feature-icon svg { width: 100%; height: 100%; }

  .feature-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: 16px;
    color: var(--white);
  }

  .feature-text {
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--white-dim);
    line-height: 1.8;
  }

  .feature-num {
    position: absolute;
    bottom: 24px; right: 32px;
    font-family: 'Playfair Display', serif;
    font-size: 4rem;
    color: rgba(0,200,224,0.05);
    font-weight: 700;
    line-height: 1;
  }

  /* ── SPECTRUM SECTION ── */
  .spectrum-section {
    background: var(--abyss);
    padding: 120px 0;
    overflow: hidden;
  }

  .spectrum-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
  }

  .spectrum-visual {
    position: relative;
    height: 500px;
  }

  .lamp-body {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 350px;
  }

  /* Light simulation */
  .light-sim {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .light-orb {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px; height: 80px;
    border-radius: 50%;
    background: radial-gradient(circle, #fff 0%, var(--cyan-glow) 30%, rgba(0,200,224,0.3) 70%, transparent 100%);
    box-shadow:
      0 0 30px var(--cyan-glow),
      0 0 80px var(--cyan),
      0 0 150px rgba(0,200,224,0.3),
      0 0 300px rgba(0,200,224,0.1);
    animation: breathe 3s ease-in-out infinite;
  }

  @keyframes breathe {
    0%, 100% { box-shadow: 0 0 30px var(--cyan-glow), 0 0 80px var(--cyan), 0 0 150px rgba(0,200,224,0.3); }
    50% { box-shadow: 0 0 50px var(--cyan-glow), 0 0 120px var(--cyan), 0 0 250px rgba(0,200,224,0.2), 0 0 400px rgba(0,200,224,0.08); }
  }

  .light-beam {
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 150px solid transparent;
    border-right: 150px solid transparent;
    border-top: 350px solid rgba(0,200,224,0.03);
    filter: blur(20px);
  }

  .spectrum-channels {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 40px;
  }

  .channel {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .channel-label {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    width: 100px;
    color: var(--white-dim);
  }

  .channel-bar-wrap {
    flex: 1;
    height: 4px;
    background: rgba(255,255,255,0.05);
    border-radius: 2px;
    overflow: hidden;
  }

  .channel-bar {
    height: 100%;
    border-radius: 2px;
    position: relative;
  }

  .channel-val {
    font-size: 0.8rem;
    color: var(--white-dim);
    width: 40px;
    text-align: right;
  }

  /* ── PRODUCTS ── */
  .products-section {
    padding: 120px 60px;
    max-width: 1400px;
    margin: 0 auto;
  }

  .products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 80px;
  }

  .product-card {
    background: var(--ocean);
    position: relative;
    overflow: hidden;
    transition: transform 0.4s;
  }
  .product-card:hover { transform: translateY(-6px); }

  .product-img {
    height: 260px;
    background: var(--blue-deep);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }

  .product-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 80%, rgba(0,200,224,0.15) 0%, transparent 70%);
  }

  .product-lamp-icon {
    position: relative;
    z-index: 1;
  }

  .product-info {
    padding: 32px;
  }

  .product-badge {
    display: inline-block;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--cyan);
    border: 1px solid rgba(0,200,224,0.3);
    padding: 4px 10px;
    margin-bottom: 16px;
  }

  .product-name {
    font-family: 'Playfair Display', serif;
    font-size: 1.6rem;
    font-weight: 400;
    margin-bottom: 8px;
  }

  .product-desc {
    font-size: 0.85rem;
    color: var(--white-dim);
    line-height: 1.7;
    margin-bottom: 24px;
  }

  .product-price {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--cyan);
    letter-spacing: -0.02em;
  }
  .product-price span {
    font-size: 0.8rem;
    font-weight: 300;
    color: var(--white-dim);
  }

  .product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.05);
  }

  .product-specs {
    display: flex;
    gap: 16px;
  }

  .spec {
    font-size: 0.7rem;
    color: var(--white-dim);
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .spec strong {
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 500;
  }

  /* ── STATS ── */
  .stats-band {
    background: linear-gradient(135deg, var(--blue-deep), var(--blue-mid));
    padding: 80px 60px;
    position: relative;
    overflow: hidden;
  }
  .stats-band::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
      45deg,
      transparent,
      transparent 40px,
      rgba(0,200,224,0.02) 40px,
      rgba(0,200,224,0.02) 80px
    );
  }

  .stats-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
  }

  .stat {
    text-align: center;
  }

  .stat-num {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    font-weight: 400;
    color: var(--cyan-glow);
    text-shadow: 0 0 30px rgba(0,229,255,0.4);
    line-height: 1;
    margin-bottom: 12px;
  }

  .stat-label {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--white-dim);
  }

  /* ── APP SECTION ── */
  .app-section {
    padding: 120px 60px;
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
  }

  .app-feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-left: 0;
    margin-bottom: 0;
  }

  .app-feature-item {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.9rem;
    color: var(--white-dim);
    line-height: 1.7;
  }

  .app-feature-dot {
    width: 6px;
    height: 6px;
    background: var(--cyan);
    border-radius: 50%;
    flex-shrink: 0;
  }

  .app-store-links {
    display: flex;
    gap: 16px;
    margin-top: 40px;
    flex-wrap: wrap;
  }

  .btn-store-alt {
    background: var(--coral);
  }

  .app-mockup {
    background: var(--ocean);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid rgba(0,200,224,0.1);
    box-shadow: 0 40px 120px rgba(0,0,0,0.5), 0 0 80px rgba(0,200,224,0.05);
    position: relative;
  }

  .app-top-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

  .app-dot { width: 10px; height: 10px; border-radius: 50%; }
  .d1 { background: #ff6060; }
  .d2 { background: #ffcc60; }
  .d3 { background: #60d060; }

  .app-title { font-size: 0.85rem; color: var(--white-dim); margin-left: 8px; }

  .app-program-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
  }

  .app-program-label {
    font-size: 0.7rem;
    color: var(--cyan);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 4px;
  }

  .app-program-value {
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.4;
  }

  .app-program-indicator {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0,200,224,0.15);
    border: 1px solid rgba(0,200,224,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .app-program-indicator-dot {
    width: 10px;
    height: 10px;
    background: var(--cyan);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--cyan);
  }

  .slider-group {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .slider-row {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .sl-label {
    font-size: 0.75rem;
    color: var(--white-dim);
    width: 80px;
    letter-spacing: 0.05em;
  }

  .sl-track {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    position: relative;
    cursor: none;
  }

  .sl-thumb {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 14px; height: 14px;
    border-radius: 50%;
    background: white;
    box-shadow: 0 0 10px currentColor;
  }

  .sl-val {
    font-size: 0.8rem;
    color: var(--white-dim);
    width: 36px;
    text-align: right;
  }

  .schedule-block {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.05);
  }

  .sch-label {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 16px;
  }

  .timeline {
    display: flex;
    gap: 4px;
    height: 40px;
  }

  .timeline-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 0.65rem;
    color: rgba(232,244,255,0.3);
  }

  .timeline-now {
    color: var(--cyan);
    margin-right:40px;
  }

  .tl-seg {
    flex: 1;
    border-radius: 3px;
    position: relative;
  }

  /* ── FOOTER ── */
  footer {
    background: var(--abyss);
    padding: 80px 60px 40px;
    border-top: 1px solid rgba(0,200,224,0.08);
  }

  .footer-shell {
    max-width: 1400px;
  }

  .footer-top {
    margin-bottom: 60px;
    align-items: flex-start;
  }

  .footer-brand p {
    font-size: 0.9rem;
    color: var(--white-dim);
    line-height: 1.8;
    margin-top: 16px;
    max-width: 360px;
  }

  .footer-col h4 {
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--white);
    margin-bottom: 20px;
  }

  .footer-col ul { list-style: none; padding-left:0px !important; }
  .footer-col li { margin-bottom: 12px;  }
  .footer-col a {
    color: var(--white-dim);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s;
  }
  .footer-col a:hover { color: var(--cyan); }

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 0.8rem;
    color: rgba(232,244,255,0.3);
  }

  .footer-bottom-stack {
    gap: 12px;
    flex-wrap: wrap;
  }

  @keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.6; }
  }

  @media (max-width: 1199.98px) {
    nav {
      padding-left: 28px;
      padding-right: 28px;
    }

    .section,
    .products-section,
    .stats-band,
    .app-section {
      padding-left: 28px;
      padding-right: 28px;
    }

    .spectrum-inner {
      padding-left: 28px;
      padding-right: 28px;
      gap: 56px;
    }

    .section-header,
    .app-section,
    .spectrum-inner {
      gap: 48px;
    }

    .features-grid,
    .products-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 991.98px) {
    body {
      cursor: auto;
    }

    .cursor,
    .cursor-ring {
      display: none;
    }

    nav {
      padding: 18px 20px;
      background: rgba(2,11,24,0.94);
      backdrop-filter: blur(16px);
    }

    .site-navbar {
      min-height: 72px;
    }

    .navbar-collapse {
      margin-top: 16px;
      padding: 16px;
      border: 1px solid rgba(0,200,224,0.12);
      background: rgba(3,15,32,0.92);
      border-radius: 20px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    }

    .site-nav-links,
    .site-nav-cta {
      margin-left: 0;
      margin-right: 0;
    }

    nav ul {
      gap: 8px;
    }

    .nav-link {
      padding: 10px 0 !important;
    }

    .hero {
      min-height: auto;
      padding: 128px 0 96px;
    }

    .hero-content {
      padding: 0 24px;
    }

    .hero-actions {
      flex-wrap: wrap;
    }

    .section,
    .products-section,
    .stats-band,
    .app-section,
    footer {
      padding-top: 88px;
      padding-bottom: 88px;
    }

    .section-header,
    .app-section,
    .spectrum-inner {
      grid-template-columns: 1fr;
    }

    .spectrum-visual {
      order: -1;
      height: 360px;
    }

    .products-grid,
    .stats-inner {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-top {
      margin-bottom: 40px;
    }
  }

  @media (max-width: 767.98px) {
    nav {
      padding: 14px 16px;
    }

    .navbar-brand {
      font-size: 1.05rem;
      letter-spacing: 0.06em;
    }

    .hero {
      padding: 112px 0 80px;
    }

    .hero-content,
    .section,
    .products-section,
    .stats-band,
    .app-section,
    footer {
      padding-left: 16px;
      padding-right: 16px;
    }

    .spectrum-inner {
      padding-left: 16px;
      padding-right: 16px;
      gap: 36px;
    }

    .hero-eyebrow {
      letter-spacing: 0.16em;
      margin-bottom: 20px;
    }

    .hero-title {
      font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .hero-title-sub {
      font-size: clamp(1.1rem, 5vw, 1.7rem);
    }

    .hero-desc,
    .section-body {
      font-size: 0.95rem;
      line-height: 1.75;
    }

    .btn-primary,
    .btn-ghost {
      width: 100%;
      justify-content: center;
      padding: 14px 18px;
      text-align: center;
    }

    .scroll-hint {
      display: none;
    }

    .section,
    .products-section,
    .spectrum-section,
    .stats-band,
    .app-section,
    footer {
      padding-top: 72px;
      padding-bottom: 72px;
    }

    .section-header {
      margin-bottom: 48px;
      gap: 20px;
    }

    .features-grid,
    .products-grid,
    .stats-inner {
      grid-template-columns: 1fr;
    }

    .feature-card,
    .product-info,
    .app-mockup {
      padding: 24px 20px;
    }

    .feature-num {
      font-size: 2.75rem;
      right: 20px;
      bottom: 18px;
    }

    .product-img {
      height: 220px;
    }

    .product-specs {
      flex-wrap: wrap;
      gap: 12px;
    }

    .stat-num {
      font-size: 2.6rem;
    }

    .app-program-header,
    .slider-row {
      flex-wrap: wrap;
      align-items: flex-start;
    }

    .sl-label,
    .sl-val,
    .channel-label,
    .channel-val {
      width: auto;
      min-width: 0;
    }

    .timeline {
      height: 32px;
    }

    .footer-brand p {
      max-width: none;
    }

    .footer-bottom {
      justify-content: center;
      text-align: center;
      flex-direction: column;
    }
  }

  @media (max-width: 575.98px) {
    .hero-content {
      padding: 0 16px;
    }

    .hero-actions,
    .app-store-links {
      gap: 12px;
    }

    .spectrum-visual {
      height: 280px;
    }

    .light-orb {
      top: 36px;
      width: 56px;
      height: 56px;
    }

    .light-beam {
      top: 70px;
      border-left-width: 110px;
      border-right-width: 110px;
      border-top-width: 210px;
    }

    .channel {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 10px 12px;
      align-items: center;
    }

    .channel-bar-wrap {
      grid-column: 1 / -1;
    }
  }