:root {
    --black: #080a0f;
    --white: #f5f3ee;
    --cream: #ede9e1;
    --accent-cyan: #00e5c8;
    --accent-violet: #7b5af0;
    --accent-amber: #f5a623;
    --mid: #1a1d26;
    --muted: #6b7280;
    --border: rgba(255,255,255,0.07);
  }

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

  html { scroll-behavior: smooth; font-size: 16px; }

  body {
    font-family: 'DM Sans', sans-serif;
    background: var(--black);
    color: var(--white);
    overflow-x: hidden;
  }

  /* ── NAV ── */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.2rem 4rem;
    background: rgba(8,10,15,0.7);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    transition: padding .3s;
  }
  .nav-logo {
    font-family: 'Syne', sans-serif;
    font-weight: 800; font-size: 1.35rem;
    letter-spacing: -0.03em;
    color: var(--white);
    text-decoration: none;
  }
  .nav-logo span { color: var(--accent-cyan); }
  .nav-links { display: flex; gap: 2.4rem; list-style: none; }
  .nav-links a {
    font-size: 0.85rem; font-weight: 500; letter-spacing: .06em;
    color: rgba(245,243,238,0.55); text-decoration: none;
    text-transform: uppercase; transition: color .2s;
  }
  .nav-links a:hover { color: var(--white); }
  .nav-lang {
    display: flex; gap: .5rem;
  }
  .lang-btn {
    background: none; border: 1px solid var(--border);
    color: rgba(245,243,238,0.4); padding: .3rem .7rem;
    font-size: .75rem; font-family: 'DM Sans', sans-serif;
    letter-spacing: .08em; cursor: pointer; border-radius: 4px;
    transition: all .2s;
  }
  .lang-btn.active, .lang-btn:hover {
    color: var(--accent-cyan); border-color: var(--accent-cyan);
  }

  /* ── HERO SLIDER ── */
  #home {
    position: relative; overflow: hidden;
    height: 100vh; min-height: 600px;
  }

  .slider-track {
    display: flex;
    width: 100%; height: 100%;
    transition: transform .85s cubic-bezier(.77,0,.18,1);
    will-change: transform;
  }

  .slide {
    flex: 0 0 100%;
    width: 100%; height: 100%;
    position: relative; overflow: hidden;
    display: flex; align-items: center;
  }

  /* slide backgrounds */
  .slide-0 { background: var(--black); }
  .slide-1 { background: #0a0612; }
  .slide-2 { background: #0d0f08; }

  /* ambient glow per slide */
  .slide-glow {
    position: absolute; inset: 0; z-index: 0; pointer-events: none;
  }
  .slide-0 .slide-glow {
    background:
      radial-gradient(ellipse 55% 65% at 75% 50%, rgba(0,229,200,0.13) 0%, transparent 65%),
      radial-gradient(ellipse 35% 45% at 15% 75%, rgba(123,90,240,0.08) 0%, transparent 60%);
  }
  .slide-1 .slide-glow {
    background:
      radial-gradient(ellipse 60% 60% at 72% 48%, rgba(123,90,240,0.18) 0%, transparent 65%),
      radial-gradient(ellipse 35% 40% at 20% 70%, rgba(0,229,200,0.07) 0%, transparent 60%);
  }
  .slide-2 .slide-glow {
    background:
      radial-gradient(ellipse 60% 65% at 70% 50%, rgba(245,166,35,0.13) 0%, transparent 65%),
      radial-gradient(ellipse 30% 40% at 15% 70%, rgba(245,166,35,0.06) 0%, transparent 60%);
  }

  /* grid overlay */
  .slide-grid {
    position: absolute; inset: 0; z-index: 0;
    background-image:
      linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
    pointer-events: none;
  }

  /* slide content layout */
  .slide-inner {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 1fr 1fr;
    align-items: center; gap: 3rem;
    width: 100%; padding: 0 4rem; padding-top: 5rem;
  }

  .slide-left {}
  .slide-eyebrow {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .38rem .95rem; border-radius: 100px; margin-bottom: 2rem;
    font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  }
  .slide-eyebrow::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    animation: pulse 2s infinite;
  }
  @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.3;transform:scale(1.5)} }

  /* slide-0: coolp brand */
  .slide-0 .slide-eyebrow {
    background: rgba(0,229,200,0.08); border: 1px solid rgba(0,229,200,0.25); color: var(--accent-cyan);
  }
  .slide-0 .slide-eyebrow::before { background: var(--accent-cyan); }

  /* slide-1: aiyna */
  .slide-1 .slide-eyebrow {
    background: rgba(123,90,240,0.1); border: 1px solid rgba(123,90,240,0.3); color: var(--accent-violet);
  }
  .slide-1 .slide-eyebrow::before { background: var(--accent-violet); }

  /* slide-2: diacom */
  .slide-2 .slide-eyebrow {
    background: rgba(245,166,35,0.1); border: 1px solid rgba(245,166,35,0.3); color: var(--accent-amber);
  }
  .slide-2 .slide-eyebrow::before { background: var(--accent-amber); }

  h1 {
    font-family: 'Syne', sans-serif;
    font-size: clamp(2.8rem, 5.5vw, 5.5rem);
    font-weight: 800; line-height: .95;
    letter-spacing: -0.04em;
  }
  h1 .line-accent { color: transparent; -webkit-text-stroke: 1px rgba(245,243,238,0.2); }
  h1 .gradient-cyan {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, #00b8a0 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  }
  h1 .gradient-violet {
    background: linear-gradient(135deg, var(--accent-violet) 0%, #a78bf7 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  }
  h1 .gradient-amber {
    background: linear-gradient(135deg, var(--accent-amber) 0%, #e8891a 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  }
  h1 .gradient-green {
    background: linear-gradient(135deg, #00e5c8 0%, #22c55e 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  }

  .slide-desc {
    margin-top: 1.5rem; font-size: 1rem; line-height: 1.75;
    color: rgba(245,243,238,0.5); max-width: 500px; font-weight: 300;
  }
  .slide-ctas {
    display: flex; gap: 1rem; margin-top: 2.2rem; flex-wrap: wrap;
  }
  .btn-primary {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .82rem 1.9rem; border-radius: 6px;
    font-weight: 700; font-size: .9rem; text-decoration: none;
    transition: transform .2s, box-shadow .2s;
  }
  .btn-primary.cyan  { background: var(--accent-cyan);   color: var(--black); box-shadow: 0 0 28px rgba(0,229,200,0.25); }
  .btn-primary.violet{ background: var(--accent-violet);  color: var(--white); box-shadow: 0 0 28px rgba(123,90,240,0.3); }
  .btn-primary.amber { background: var(--accent-amber);   color: var(--black); box-shadow: 0 0 28px rgba(245,166,35,0.28); }
  .btn-primary.fire  { background: linear-gradient(135deg,#ff3d2e,#ff6b1a,#ffb347); color: var(--white); box-shadow: 0 0 28px rgba(255,61,46,0.3); }
  .btn-primary:hover { transform: translateY(-2px); }

  h1 .gradient-fire {
    background: linear-gradient(135deg, #ff3d2e 0%, #ff6b1a 50%, #ffb347 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  }

  /* ── SLIDE 3: AICTION ── */
  .slide-3 { background: #080508; }
  .slide-3 .slide-glow {
    background:
      radial-gradient(ellipse 55% 60% at 72% 45%, rgba(255,61,46,0.12) 0%, transparent 60%),
      radial-gradient(ellipse 35% 40% at 15% 75%, rgba(255,107,26,0.07) 0%, transparent 55%);
  }
  .slide-3 .slide-eyebrow {
    background: rgba(255,61,46,0.08); border: 1px solid rgba(255,61,46,0.25); color: #ff6b1a;
  }
  .slide-3 .slide-eyebrow::before { background: #ff3d2e; }

  /* Aiction mini mockup */
  .slide-aiction-visual { display: flex; align-items: center; justify-content: center; height: 100%; }
  .aiction-mockup-mini {
    background: #0f0f16; border: 1px solid rgba(255,255,255,0.1);
    border-radius: 14px; overflow: hidden; width: 420px;
    box-shadow: 0 30px 80px rgba(0,0,0,.7), 0 0 40px rgba(255,61,46,0.08);
  }
  .amm-bar {
    background: #16161f; padding: .55rem 1rem;
    display: flex; align-items: center; gap: .4rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .amm-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
  .amm-dot.r{background:#ff5f57} .amm-dot.y{background:#febc2e} .amm-dot.g{background:#28c840}
  .amm-title { font-size: .7rem; color: rgba(255,255,255,0.35); margin-left: .5rem; }
  .amm-scenes { padding: .9rem 1rem; display: flex; flex-direction: column; gap: .6rem; }
  .amm-scene {
    display: flex; align-items: center; gap: .7rem;
    padding: .55rem .8rem; border-radius: 8px;
    background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.05);
  }
  .amm-scene-icon { font-size: .9rem; flex-shrink: 0; }
  .amm-scene-info { flex: 1; }
  .amm-scene-name { font-size: .7rem; font-weight: 600; color: rgba(255,255,255,0.7); margin-bottom: .3rem; }
  .amm-scene-prog { height: 3px; background: rgba(255,255,255,0.08); border-radius: 2px; overflow: hidden; }
  .amm-prog-fill { height: 100%; border-radius: 2px; background: linear-gradient(90deg,#ff3d2e,#ffb347); }
  .amm-badge { font-size: .6rem; font-weight: 700; padding: .18rem .5rem; border-radius: 4px; flex-shrink: 0; }
  .amm-badge.done{background:rgba(40,200,64,0.15);color:#28c840}
  .amm-badge.proc{background:rgba(255,107,26,0.15);color:#ff6b1a}
  .amm-badge.wait{background:rgba(255,255,255,0.06);color:rgba(255,255,255,0.35)}
  .amm-tl {
    background: #0a0a0f; border-top: 1px solid rgba(255,255,255,0.06);
    padding: .65rem 1rem; display: flex; align-items: center; gap: .3rem;
  }
  .amm-tl-block {
    height: 16px; border-radius: 3px; padding: 0 .5rem;
    font-size: .58rem; font-weight: 700; display:flex; align-items:center;
  }
  .b1{width:25%;background:rgba(255,61,46,0.2);color:#ff3d2e;border:1px solid rgba(255,61,46,0.25)}
  .b2{width:20%;background:rgba(255,107,26,0.18);color:#ff6b1a;border:1px solid rgba(255,107,26,0.22)}
  .b3{width:28%;background:rgba(255,179,71,0.15);color:#ffb347;border:1px solid rgba(255,179,71,0.2)}
  .amm-tl-cursor{width:2px;height:22px;background:#ff3d2e;margin-left:auto;flex-shrink:0;box-shadow:0 0 6px #ff3d2e}
  .btn-ghost {
    display: inline-flex; align-items: center; gap: .5rem;
    border: 1px solid var(--border); color: var(--white);
    padding: .82rem 1.9rem; border-radius: 6px;
    font-weight: 500; font-size: .9rem; text-decoration: none;
    transition: border-color .2s;
  }
  .btn-ghost:hover { border-color: rgba(255,255,255,0.25); }

  /* slide right visual */
  .slide-right { display: flex; align-items: center; justify-content: center; height: 100%; }
  .slide-phones {
    position: relative; height: 480px; width: 100%;
    display: flex; align-items: center; justify-content: center;
  }
  .sphone {
    position: absolute; border-radius: 26px; overflow: hidden;
    box-shadow: 0 30px 70px rgba(0,0,0,0.6);
    border: 1px solid rgba(255,255,255,0.08);
    transition: transform .4s ease;
  }
  .sphone img { width: 100%; display: block; }
  .sphone.sp-main  { width: 200px; z-index: 3; left: 50%; top: 50%; transform: translate(-50%, -50%) !important; }
  .sphone.sp-left  { width: 165px; left: 4%;  top: 40px; z-index: 2; transform: rotate(-6deg) !important; opacity: .65; }
  .sphone.sp-right { width: 165px; right: 4%; top: 40px; z-index: 2; transform: rotate(6deg)  !important; opacity: .65; }

  /* Aiction — landscape desktop screenshots */
  .slide-3 .sphone { border-radius: 10px; }
  .slide-3 .sphone.sp-main  { width: 54%; left: 50%; top: 50%; transform: translate(-50%, -50%) !important; z-index: 3; }
  .slide-3 .sphone.sp-left  { width: 40%; left: 2%;  top: 20px; transform: rotate(-4deg) !important; opacity: .6; z-index: 2; }
  .slide-3 .sphone.sp-right { width: 40%; right: 2%; top: 20px; transform: rotate(4deg)  !important; opacity: .6; z-index: 2; }

  /* brand slide visual (slide 0) */
  .brand-visual {
    width: 100%; height: 420px;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.5rem;
  }
  .brand-big {
    font-family: 'Syne', sans-serif; font-size: 7rem; font-weight: 800;
    letter-spacing: -.06em; line-height: 1;
    color: transparent; -webkit-text-stroke: 1px rgba(245,243,238,0.06);
    user-select: none;
  }
  .brand-cards { display: flex; gap: 1.2rem; }
  .bcard {
    padding: 1.4rem 1.8rem; border-radius: 14px;
    border: 1px solid var(--border); background: rgba(255,255,255,0.02);
    text-align: center; min-width: 130px;
    transition: border-color .3s, background .3s;
  }
  .bcard:hover { border-color: rgba(255,255,255,0.12); background: rgba(255,255,255,0.04); }
  .bcard-icon { font-size: 1.8rem; margin-bottom: .5rem; }
  .bcard-name { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1rem; }
  .bcard-name.v { color: var(--accent-violet); }
  .bcard-name.c { color: var(--accent-cyan); }
  .bcard-name.f { background: linear-gradient(135deg,#ff3d2e,#ffb347); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
  .bcard-cat { font-size: .72rem; color: var(--muted); margin-top: .2rem; }

  /* slider controls */
  .slider-dots {
    position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
    display: flex; gap: .6rem; z-index: 10;
  }
  .sdot {
    width: 6px; height: 6px; border-radius: 3px; cursor: pointer;
    background: rgba(255,255,255,0.2);
    transition: width .4s, background .3s;
  }
  .sdot.active { width: 28px; background: var(--white); }

  .slider-arrows {
    position: absolute; bottom: 2.2rem; right: 4rem;
    display: flex; gap: .6rem; z-index: 10;
  }
  .sarrow {
    width: 40px; height: 40px; border-radius: 50%;
    border: 1px solid var(--border); background: rgba(255,255,255,0.04);
    color: var(--white); font-size: 1rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: border-color .2s, background .2s; user-select: none;
  }
  .sarrow:hover { border-color: rgba(255,255,255,0.2); background: rgba(255,255,255,0.08); }

  /* slide progress bar */
  .slide-progress {
    position: absolute; bottom: 0; left: 0; height: 2px; z-index: 10;
    background: rgba(255,255,255,0.15);
    width: 100%;
  }
  .slide-progress-bar {
    height: 100%; width: 0%;
    background: var(--accent-cyan);
    transition: background .4s;
  }

  /* slide content animation */
  .slide-left > * {
    opacity: 0; transform: translateY(20px);
    transition: opacity .6s ease, transform .6s ease;
  }
  .slide.is-active .slide-left > *:nth-child(1) { opacity:1; transform:none; transition-delay:.1s; }
  .slide.is-active .slide-left > *:nth-child(2) { opacity:1; transform:none; transition-delay:.2s; }
  .slide.is-active .slide-left > *:nth-child(3) { opacity:1; transform:none; transition-delay:.3s; }
  .slide.is-active .slide-left > *:nth-child(4) { opacity:1; transform:none; transition-delay:.4s; }

  .slide-right {
    opacity: 0; transform: translateX(30px);
    transition: opacity .7s ease .25s, transform .7s ease .25s;
  }
  .slide.is-active .slide-right { opacity:1; transform:none; }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  /* ── SECTION BASE ── */
  section { padding: 7rem 4rem; }
  .section-label {
    display: inline-flex; align-items: center; gap: .6rem;
    font-size: .72rem; letter-spacing: .18em; text-transform: uppercase;
    color: var(--accent-cyan); margin-bottom: 1.2rem;
  }
  .section-label::before {
    content: ''; width: 24px; height: 1px; background: var(--accent-cyan);
  }
  h2 {
    font-family: 'Syne', sans-serif; font-size: clamp(2rem, 4vw, 3.4rem);
    font-weight: 800; line-height: 1.05; letter-spacing: -0.03em;
  }
  p.lead {
    font-size: 1.05rem; line-height: 1.75; color: rgba(245,243,238,0.55);
    font-weight: 300; max-width: 640px;
  }

  /* ── ABOUT ── */
  #about { background: var(--mid); position: relative; overflow: hidden; }
  #about::before {
    content: ''; position: absolute; top: -200px; right: -200px;
    width: 600px; height: 600px; border-radius: 50%;
    background: radial-gradient(circle, rgba(123,90,240,0.08) 0%, transparent 70%);
    pointer-events: none;
  }
  .about-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 5rem;
    align-items: center; margin-top: 4rem;
  }
  .about-text h2 { margin-bottom: 1.5rem; }
  .about-text p { margin-bottom: 1.2rem; }
  .principles { display: flex; flex-direction: column; gap: 1.5rem; margin-top: 3rem; }
  .principle {
    display: flex; gap: 1.2rem; align-items: flex-start;
    padding: 1.4rem; border-radius: 10px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
    transition: border-color .3s, background .3s;
  }
  .principle:hover { border-color: rgba(0,229,200,0.25); background: rgba(0,229,200,0.03); }
  .principle-icon {
    width: 40px; height: 40px; border-radius: 8px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
  }
  .principle-icon.cyan { background: rgba(0,229,200,0.1); }
  .principle-icon.violet { background: rgba(123,90,240,0.1); }
  .principle-icon.amber { background: rgba(245,166,35,0.1); }
  .principle h4 {
    font-family: 'Syne', sans-serif; font-size: .95rem; font-weight: 700;
    margin-bottom: .35rem;
  }
  .principle p { font-size: .87rem; color: rgba(245,243,238,0.5); line-height: 1.6; margin: 0; }

  .about-visual {
    position: relative; height: 500px;
  }
  .about-card {
    position: absolute; border-radius: 16px; padding: 1.8rem;
    border: 1px solid var(--border);
  }
  .card-main {
    inset: 0; background: rgba(255,255,255,0.03);
    display: flex; flex-direction: column; justify-content: center;
  }
  .card-main .big-text {
    font-family: 'Syne', sans-serif; font-size: 5rem; font-weight: 800;
    line-height: 1; color: transparent;
    -webkit-text-stroke: 1px rgba(255,255,255,0.08);
    margin-bottom: 1rem;
  }
  .card-main .tag-line {
    font-family: 'Syne', sans-serif; font-size: 1.3rem; font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    margin-bottom: .5rem;
  }
  .card-main .sub { font-size: .85rem; color: var(--muted); }
  .card-float {
    width: 160px; background: var(--black);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  }
  .card-float.f1 { top: 1.5rem; right: -1.5rem; }
  .card-float.f2 { bottom: 1.5rem; left: -1.5rem; }
  .card-float h5 { font-family: 'Syne', sans-serif; font-size: .8rem; font-weight: 700; margin-bottom: .4rem; }
  .card-float .val { font-size: 1.4rem; font-weight: 800; font-family: 'Syne', sans-serif; }
  .card-float .val.cyan { color: var(--accent-cyan); }
  .card-float .val.violet { color: var(--accent-violet); }
  .card-float p { font-size: .72rem; color: var(--muted); margin-top: .2rem; }

  /* ── PRODUCTS ── */
  #products { background: var(--black); }
  .products-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 4rem; gap: 2rem; flex-wrap: wrap; }
  .products-header h2 { margin: .5rem 0 0; }

  .product-card {
    display: grid; grid-template-columns: 1fr 1fr;
    border-radius: 20px; overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 2rem;
    transition: border-color .3s;
  }
  .product-card:hover { border-color: rgba(255,255,255,0.12); }
  .product-card.reversed { direction: rtl; }
  .product-card.reversed > * { direction: ltr; }

  .product-content {
    padding: 4rem; background: rgba(255,255,255,0.02);
    display: flex; flex-direction: column; justify-content: center;
  }
  .product-tag {
    display: inline-flex; align-items: center; gap: .4rem;
    font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
    padding: .3rem .8rem; border-radius: 100px; margin-bottom: 1.8rem;
    width: fit-content;
  }
  .tag-retail { background: rgba(123,90,240,0.12); color: var(--accent-violet); border: 1px solid rgba(123,90,240,0.25); }
  .tag-health { background: rgba(0,229,200,0.10); color: var(--accent-cyan); border: 1px solid rgba(0,229,200,0.25); }
  .tag-creative { background: rgba(255,107,26,0.1); color: #ff6b1a; border: 1px solid rgba(255,107,26,0.25); }
  
  .product-content h3 {
    font-family: 'Syne', sans-serif; font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 800; letter-spacing: -0.04em; line-height: 1;
    margin-bottom: 1.2rem;
  }
  .product-content h3.violet { color: var(--accent-violet); }
  .product-content h3.cyan   { color: var(--accent-cyan); }
  .product-content h3.fire-grad {
    background: linear-gradient(135deg, #ff3d2e, #ff6b1a, #ffb347);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  }
  .product-content p {
    font-size: .95rem; line-height: 1.75; color: rgba(245,243,238,0.5);
    font-weight: 300; margin-bottom: 2rem;
  }
  .feature-list { list-style: none; display: flex; flex-direction: column; gap: .7rem; margin-bottom: 2.2rem; }
  .feature-list li {
    display: flex; align-items: flex-start; gap: .7rem;
    font-size: .88rem; color: rgba(245,243,238,0.65); line-height: 1.4;
  }
  .feature-list li::before {
    content: '→'; flex-shrink: 0; margin-top: .05rem;
  }
  .feature-list.violet li::before { color: var(--accent-violet); }
  .feature-list.cyan li::before { color: var(--accent-cyan); }
  .feature-list.fire li::before { color: #ff6b1a; }
  .btn-product {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .75rem 1.6rem; border-radius: 6px;
    font-size: .88rem; font-weight: 600; text-decoration: none;
    width: fit-content; transition: transform .2s, box-shadow .2s;
  }
  .btn-product.violet {
    background: rgba(123,90,240,0.15); color: var(--accent-violet);
    border: 1px solid rgba(123,90,240,0.35);
  }
  .btn-product.cyan {
    background: rgba(0,229,200,0.12); color: var(--accent-cyan);
    border: 1px solid rgba(0,229,200,0.3);
  }
  .btn-product.fire-btn {
    background: rgba(255,107,26,0.12); color: #ff6b1a;
    border: 1px solid rgba(255,107,26,0.3);
  }
  .btn-product:hover { transform: translateY(-2px); }

  .product-visual {
    position: relative; overflow: hidden; min-height: 480px;
    display: flex; align-items: center; justify-content: center;
  }
  .pv-aiyna {
    background: linear-gradient(135deg, rgba(123,90,240,0.15) 0%, rgba(8,10,15,1) 60%);
  }
  .pv-diacom {
    background: linear-gradient(135deg, rgba(0,229,200,0.12) 0%, rgba(8,10,15,1) 60%);
  }
  .pv-aiction {
    background: linear-gradient(135deg, rgba(255,61,46,0.14) 0%, rgba(8,10,15,1) 60%);
  }
  .pv-content { text-align: center; padding: 2rem; z-index: 1; position: relative; }
  .pv-emoji { font-size: 5rem; display: block; margin-bottom: 1.5rem; }
  .pv-mockup {
    background: rgba(255,255,255,0.04); border: 1px solid var(--border);
    border-radius: 16px; padding: 1.5rem; width: 240px; margin: 0 auto;
    text-align: left;
  }
  .pv-mockup .dot-row { display: flex; gap: .4rem; margin-bottom: 1rem; }
  .pv-mockup .dot { width: 8px; height: 8px; border-radius: 50%; }
  .d1 { background: #ff5f57; }
  .d2 { background: #febc2e; }
  .d3 { background: #28c840; }
  .pv-bar { height: 8px; border-radius: 4px; background: rgba(255,255,255,0.08); margin-bottom: .6rem; }
  .pv-bar.w80 { width: 80%; }
  .pv-bar.w60 { width: 60%; }
  .pv-bar.w90 { width: 90%; }
  .pv-bar.w95 { width: 95%; }
  .pv-bar.w50 { width: 50%; }
  .pv-bar.accent-v { background: linear-gradient(90deg, var(--accent-violet), rgba(123,90,240,0.3)); }
  .pv-bar.accent-c { background: linear-gradient(90deg, var(--accent-cyan), rgba(0,229,200,0.3)); }
  .pv-bar.accent-f { background: linear-gradient(90deg, #ff3d2e, rgba(255,179,71,0.3)); }
  .pv-highlight {
    display: inline-block; padding: .3rem .7rem; border-radius: 6px;
    font-size: .75rem; font-weight: 600; margin-top: .8rem;
  }
  .pv-highlight.v { background: rgba(123,90,240,0.2); color: var(--accent-violet); }
  .pv-highlight.c { background: rgba(0,229,200,0.15); color: var(--accent-cyan); }
  .pv-highlight.f { background: rgba(255,107,26,0.15); color: #ff6b1a; }
  .pv-bg-circle {
    position: absolute; border-radius: 50%; pointer-events: none;
  }
  .pv-aiyna .pv-bg-circle {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(123,90,240,0.12) 0%, transparent 70%);
    top: 50%; left: 50%; transform: translate(-50%,-50%);
  }
  .pv-diacom .pv-bg-circle {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(0,229,200,0.1) 0%, transparent 70%);
    top: 50%; left: 50%; transform: translate(-50%,-50%);
  }
  .pv-aiction .pv-bg-circle {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(255,107,26,0.1) 0%, transparent 70%);
    top: 50%; left: 50%; transform: translate(-50%,-50%);
  }
  .model-tags {
    display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 2rem;
  }
  .model-tag {
    font-size: .72rem; letter-spacing: .08em;
    padding: .25rem .65rem; border-radius: 4px;
    background: rgba(255,255,255,0.05); color: rgba(245,243,238,0.45);
  }

  /* ── CONTACT ── */
  #contact {
    background: var(--mid);
    position: relative; overflow: hidden;
  }
  #contact::before {
    content: ''; position: absolute; bottom: -300px; left: 50%;
    transform: translateX(-50%);
    width: 800px; height: 800px; border-radius: 50%;
    background: radial-gradient(circle, rgba(0,229,200,0.06) 0%, transparent 70%);
    pointer-events: none;
  }
  .contact-inner {
    display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start;
    margin-top: 4rem;
  }
  .contact-info h2 { margin-bottom: 1.2rem; }
  .contact-info p { font-size: 1rem; line-height: 1.7; color: rgba(245,243,238,0.5); margin-bottom: 2.5rem; }
  .contact-items { display: flex; flex-direction: column; gap: 1.2rem; }
  .contact-item {
    display: flex; align-items: center; gap: 1rem;
    padding: 1rem 1.2rem; border-radius: 10px;
    border: 1px solid var(--border); background: rgba(255,255,255,0.02);
  }
  .contact-icon {
    width: 38px; height: 38px; border-radius: 8px;
    background: rgba(0,229,200,0.1); display: flex;
    align-items: center; justify-content: center;
    font-size: 1rem; flex-shrink: 0;
  }
  .contact-item h5 { font-size: .78rem; color: var(--muted); margin-bottom: .2rem; letter-spacing: .06em; text-transform: uppercase; }
  .contact-item a, .contact-item span { font-size: .95rem; color: var(--white); text-decoration: none; }
  .contact-item a:hover { color: var(--accent-cyan); }

  .contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
  .form-group { display: flex; flex-direction: column; gap: .45rem; }
  .form-group label { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
  .form-group input, .form-group textarea, .form-group select {
    background: rgba(255,255,255,0.04); border: 1px solid var(--border);
    border-radius: 8px; padding: .85rem 1.1rem;
    color: var(--white); font-family: 'DM Sans', sans-serif; font-size: .95rem;
    outline: none; transition: border-color .2s;
    width: 100%;
  }
  .form-group input::placeholder, .form-group textarea::placeholder { color: rgba(245,243,238,0.2); }
  .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    border-color: rgba(0,229,200,0.4);
  }
  .form-group textarea { resize: vertical; min-height: 130px; }
  .form-group select option { background: #1a1d26; }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .btn-submit {
    background: var(--accent-cyan); color: var(--black);
    border: none; padding: .9rem 2rem; border-radius: 6px;
    font-family: 'DM Sans', sans-serif; font-size: .95rem; font-weight: 600;
    cursor: pointer; transition: transform .2s, box-shadow .2s; align-self: flex-start;
    box-shadow: 0 0 30px rgba(0,229,200,0.2);
  }
  .btn-submit:hover { transform: translateY(-2px); box-shadow: 0 0 50px rgba(0,229,200,0.4); }

  /* ── FOOTER ── */
  footer {
    background: var(--black); border-top: 1px solid var(--border);
    padding: 2.5rem 4rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  }
  .footer-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.1rem; letter-spacing: -0.02em; }
  .footer-logo span { color: var(--accent-cyan); }
  footer p { font-size: .82rem; color: var(--muted); }
  .footer-links { display: flex; gap: 1.5rem; }
  .footer-links a { font-size: .82rem; color: var(--muted); text-decoration: none; transition: color .2s; }
  .footer-links a:hover { color: var(--white); }

  /* ── DIVIDER ── */
  .divider {
    height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 0 4rem;
  }

  /* ── RESPONSIVE ── */
  [data-lang="en"] { display: none; }
  body.en [data-lang="tr"] { display: none; }
  body.en [data-lang="en"] { display: block; }
  body.en .lang-en-inline { display: inline; }
  body.en .lang-tr-inline { display: none; }
  .lang-en-inline { display: none; }
  .lang-tr-inline { display: inline; }

  /* ── RESPONSIVE ── */
  @media (max-width: 900px) {
    nav { padding: 1rem 1.5rem; }
    section, #contact { padding: 5rem 1.5rem; }
    .slide-inner { grid-template-columns: 1fr; padding: 0 1.5rem; padding-top: 5.5rem; gap: 1.5rem; }
    .slide-right { display: none; }
    .about-grid, .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
    .product-card, .product-card.reversed { grid-template-columns: 1fr; direction: ltr; }
    .product-visual { min-height: 300px; }
    footer { flex-direction: column; align-items: flex-start; padding: 2rem 1.5rem; }
    .divider { margin: 0 1.5rem; }
    .form-row { grid-template-columns: 1fr; }
    .products-header { flex-direction: column; align-items: flex-start; }
    .nav-links { display: none; }
    .slider-arrows { right: 1.5rem; }
  }