:root {
    --bg:       #07080F;
    --surface:  #0E1019;
    --border:   rgba(124,92,255,.18);
    --purple:   #7C5CFF;
    --purple-lt:#A68FFF;
    --cyan:     #00D4C8;
    --white:    #F0EFFB;
    --muted:    #7E7D9A;
    --glow:     0 0 60px rgba(124,92,255,.35);
    --font-head:'Space Grotesk', sans-serif;
    --font-body:'DM Sans', sans-serif;
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--white);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.65;
    overflow-x: hidden;
  }

  /* ── CANVAS BG ── */
  #dots-canvas {
    position: fixed; inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: .45;
  }

  /* ── NAV ── */
  nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 6vw;
    backdrop-filter: blur(18px) saturate(180%);
    background: rgba(7,8,15,.72);
    border-bottom: 1px solid var(--border);
    transition: padding .3s;
  }
  nav.scrolled { padding: 12px 6vw; }

  .nav-logo { display: flex; align-items: center; gap: 11px; text-decoration: none; }
  .nav-logo img { width: 38px; height: 38px; border-radius: 10px; }
  .nav-logo span {
    font-family: var(--font-head);
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -.01em;
    color: var(--white);
  }
  .nav-logo span em { color: var(--purple-lt); font-style: normal; }

  .nav-links { display: flex; gap: 36px; list-style: none; }
  .nav-links a {
    color: var(--muted);
    text-decoration: none;
    font-size: .88rem;
    font-weight: 500;
    letter-spacing: .04em;
    text-transform: uppercase;
    transition: color .2s;
  }
  .nav-links a:hover { color: var(--white); }

  .nav-cta {
    background: var(--purple);
    color: #fff !important;
    padding: 9px 22px;
    border-radius: 8px;
    font-weight: 600 !important;
    transition: background .2s, box-shadow .2s !important;
  }
  .nav-cta:hover { background: var(--purple-lt) !important; box-shadow: var(--glow); }

  /* ── SECTIONS ── */
  section { position: relative; z-index: 1; }

  /* ── HERO ── */
  #hero {
    min-height: 100vh;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    text-align: center;
    padding: 120px 6vw 80px;
    overflow: hidden;
  }

  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 6px 16px;
    font-size: .78rem;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 32px;
    background: rgba(0,212,200,.06);
    opacity: 0; animation: fadeUp .7s .2s forwards;
  }
  .hero-badge span { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); display: inline-block; animation: pulse-dot 1.8s infinite; }

  h1 {
    font-family: var(--font-head);
    font-size: clamp(2.8rem, 7vw, 6.2rem);
    font-weight: 800;
    line-height: 1.06;
    letter-spacing: -.03em;
    max-width: 900px;
    opacity: 0; animation: fadeUp .8s .35s forwards;
  }
  h1 .accent { color: var(--purple-lt); }
  h1 .stroke {
    -webkit-text-stroke: 1.5px var(--purple-lt);
    color: transparent;
  }

  .hero-sub {
    margin-top: 24px;
    font-size: 1.12rem;
    font-weight: 300;
    color: var(--muted);
    max-width: 560px;
    opacity: 0; animation: fadeUp .8s .5s forwards;
  }

  .hero-actions {
    margin-top: 44px;
    display: flex; gap: 16px; flex-wrap: wrap; justify-content: center;
    opacity: 0; animation: fadeUp .8s .65s forwards;
  }

  .btn-primary {
    background: var(--purple);
    color: #fff;
    padding: 14px 34px;
    border-radius: 10px;
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    transition: background .2s, box-shadow .25s, transform .2s;
  }
  .btn-primary:hover {
    background: var(--purple-lt);
    box-shadow: var(--glow);
    transform: translateY(-2px);
  }

  .btn-outline {
    border: 1px solid var(--border);
    color: var(--white);
    padding: 14px 34px;
    border-radius: 10px;
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    transition: border-color .2s, box-shadow .2s, transform .2s;
  }
  .btn-outline:hover {
    border-color: var(--purple);
    box-shadow: 0 0 30px rgba(124,92,255,.15);
    transform: translateY(-2px);
  }

  /* scroll indicator */
  .scroll-hint {
    position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    font-size: .72rem; letter-spacing: .1em; text-transform: uppercase;
    color: var(--muted);
    opacity: 0; animation: fadeUp .8s 1.1s forwards;
  }
  .scroll-hint .line {
    width: 1px; height: 46px;
    background: linear-gradient(to bottom, var(--purple), transparent);
    animation: scrollLine 2s 1.5s infinite;
  }


  /* ── SERVICES ── */
  #services { padding: 120px 6vw; }

  .section-tag {
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 16px;
  }
  h2 {
    font-family: var(--font-head);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -.025em;
    line-height: 1.12;
    max-width: 600px;
  }
  h2 .accent { color: var(--purple-lt); }

  .section-intro {
    color: var(--muted);
    max-width: 480px;
    margin-top: 16px;
    font-weight: 300;
  }

  /* ── SERVICES (improved) ── */
  #services { padding: 120px 6vw; }

  .svc-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 56px;
    flex-wrap: wrap;
  }
  .svc-header h2 { max-width: none; }
  .svc-header .section-intro { max-width: 380px; font-size: .96rem; }

  /* Featured 2-col cards */
  .svc-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
  }
  @media (max-width: 860px) { .svc-featured { grid-template-columns: 1fr; } }

  .svc-featured-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 44px 40px;
    display: flex; flex-direction: column;
    position: relative; overflow: hidden;
    transition: border-color .3s, transform .3s, box-shadow .3s;
    min-height: 360px;
  }
  .svc-featured-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 180px;
    background: radial-gradient(ellipse at 50% 120%, rgba(124,92,255,.14) 0%, transparent 70%);
    pointer-events: none;
    transition: opacity .4s;
  }
  .svc-featured-card:nth-child(2)::after {
    background: radial-gradient(ellipse at 50% 120%, rgba(0,212,200,.12) 0%, transparent 70%);
  }
  .svc-featured-card:hover { border-color: rgba(124,92,255,.45); transform: translateY(-6px); box-shadow: 0 24px 64px rgba(0,0,0,.45); }
  .svc-featured-card:nth-child(2):hover { border-color: rgba(0,212,200,.35); }

  .sfc-top {
    display: flex; justify-content: space-between; align-items: flex-start;
    margin-bottom: 24px;
  }
  .sfc-label {
    font-size: .7rem; font-weight: 700;
    letter-spacing: .14em; text-transform: uppercase;
    color: var(--purple);
    background: rgba(124,92,255,.1);
    border: 1px solid rgba(124,92,255,.2);
    padding: 4px 12px; border-radius: 100px;
  }
  .svc-featured-card:nth-child(2) .sfc-label {
    color: var(--cyan);
    background: rgba(0,212,200,.08);
    border-color: rgba(0,212,200,.2);
  }
  .sfc-icon-lg { font-size: 2rem; }

  .sfc-title {
    font-family: var(--font-head);
    font-size: clamp(1.5rem, 2.5vw, 1.9rem);
    font-weight: 700;
    letter-spacing: -.02em;
    line-height: 1.2;
    margin-bottom: 14px;
  }
  .sfc-desc {
    color: var(--muted); font-size: .93rem; font-weight: 300;
    line-height: 1.7; flex: 1; margin-bottom: 28px;
  }
  .sfc-stack {
    display: flex; flex-wrap: wrap; gap: 8px;
    margin-bottom: 20px;
  }
  .sfc-stack span {
    font-size: .72rem; font-weight: 600;
    letter-spacing: .05em;
    padding: 4px 12px; border-radius: 100px;
    border: 1px solid var(--border);
    color: var(--muted);
    background: rgba(255,255,255,.03);
  }
  .sfc-footer { border-top: 1px solid var(--border); padding-top: 18px; }
  .sfc-outcomes {
    font-size: .78rem; color: var(--muted);
    letter-spacing: .04em;
  }

  /* 3-col supporting cards */
  .svc-supporting {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  @media (max-width: 900px) { .svc-supporting { grid-template-columns: 1fr; } }
  @media (min-width: 600px) and (max-width: 900px) { .svc-supporting { grid-template-columns: 1fr 1fr; } }

  .svc-sup-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 28px 26px;
    display: flex; gap: 18px; align-items: flex-start;
    transition: border-color .3s, transform .25s, box-shadow .3s;
  }
  .svc-sup-card:hover { border-color: rgba(124,92,255,.35); transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,.3); }
  .svc-sup-icon {
    font-size: 1.5rem;
    width: 48px; height: 48px; flex-shrink: 0;
    border-radius: 13px;
    background: rgba(124,92,255,.1);
    border: 1px solid rgba(124,92,255,.15);
    display: flex; align-items: center; justify-content: center;
  }
  .svc-sup-title {
    font-family: var(--font-head);
    font-size: 1rem; font-weight: 700;
    margin-bottom: 8px; line-height: 1.3;
  }
  .svc-sup-desc { font-size: .86rem; color: var(--muted); font-weight: 300; line-height: 1.65; margin-bottom: 14px; }
  .svc-sup-tags { display: flex; flex-wrap: wrap; gap: 6px; }
  .svc-sup-tags span {
    font-size: .7rem; font-weight: 500;
    padding: 3px 10px; border-radius: 100px;
    border: 1px solid var(--border);
    color: var(--muted);
  }

  /* ── AI SECTION ── */
  #ai {
    padding: 120px 6vw;
    background: linear-gradient(135deg, rgba(124,92,255,.06) 0%, rgba(0,212,200,.04) 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .ai-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1200px; margin: 0 auto;
  }
  @media (max-width: 860px) { .ai-inner { grid-template-columns: 1fr; gap: 48px; } }

  .ai-visual {
    position: relative;
    height: 380px;
    display: flex; align-items: center; justify-content: center;
  }
  .ai-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--border);
    animation: spin 20s linear infinite;
  }
  .ai-ring:nth-child(1) { width: 300px; height: 300px; animation-duration: 30s; }
  .ai-ring:nth-child(2) { width: 220px; height: 220px; border-style: dashed; animation-direction: reverse; animation-duration: 20s; }
  .ai-ring:nth-child(3) { width: 140px; height: 140px; animation-duration: 15s; }

  .ai-core {
    position: relative; z-index: 2;
    width: 80px; height: 80px;
    border-radius: 22px;
    background: linear-gradient(135deg, var(--purple), var(--cyan));
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem;
    box-shadow: 0 0 60px rgba(124,92,255,.5);
    animation: float 4s ease-in-out infinite;
  }

  .ai-nodes {
    position: absolute; inset: 0; border-radius: 50%;
  }
  .node {
    position: absolute;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--purple);
    box-shadow: 0 0 12px var(--purple);
  }
  .node::after {
    content: '';
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    width: 20px; height: 20px;
    border-radius: 50%;
    border: 1px solid rgba(124,92,255,.3);
  }

  .ai-feature {
    display: flex; gap: 16px; margin-bottom: 28px;
  }
  .ai-feature-icon {
    flex-shrink: 0;
    width: 42px; height: 42px;
    border-radius: 12px;
    background: rgba(0,212,200,.1);
    border: 1px solid rgba(0,212,200,.2);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
  }
  .ai-feature-text h4 {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
  }
  .ai-feature-text p { font-size: .88rem; color: var(--muted); font-weight: 300; }

  /* ── PRODUCT ── */
  #product { padding: 120px 6vw; }

  .product-card {
    max-width: 1200px; margin: 64px auto 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 28px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: relative;
  }
  @media (max-width: 860px) { .product-card { grid-template-columns: 1fr; } }

  .product-glow {
    position: absolute; top: -60px; right: -60px;
    width: 300px; height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124,92,255,.25) 0%, transparent 70%);
    pointer-events: none;
  }

  .product-info { padding: 60px 56px; }

  .product-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: linear-gradient(135deg, rgba(124,92,255,.2), rgba(0,212,200,.1));
    border: 1px solid rgba(124,92,255,.3);
    border-radius: 100px;
    padding: 5px 15px;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--purple-lt);
    margin-bottom: 24px;
  }

  .product-info h3 {
    font-family: var(--font-head);
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -.02em;
    line-height: 1.15;
    margin-bottom: 16px;
  }
  .product-info h3 span { color: var(--purple-lt); }

  .product-info p { color: var(--muted); font-size: .96rem; font-weight: 300; margin-bottom: 32px; }

  .product-link {
    display: inline-flex; align-items: center; gap: 10px;
    background: linear-gradient(135deg, var(--purple), #5B3FD4);
    color: #fff;
    padding: 13px 30px;
    border-radius: 10px;
    font-family: var(--font-head);
    font-size: .95rem;
    font-weight: 700;
    text-decoration: none;
    transition: box-shadow .25s, transform .2s;
  }
  .product-link:hover { box-shadow: var(--glow); transform: translateY(-2px); }
  .product-link svg { width: 16px; height: 16px; }

  .product-visual {
    background: linear-gradient(135deg, #12101E, #0D0B1A);
    display: flex; align-items: center; justify-content: center;
    padding: 40px;
    min-height: 320px;
    position: relative;
    overflow: hidden;
  }
  .product-visual::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(124,92,255,.2) 0%, transparent 60%);
  }

  .mock-ui {
    position: relative; z-index: 1;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 16px;
    padding: 20px;
    width: 100%;
    max-width: 320px;
  }
  .mock-bar { display: flex; gap: 6px; margin-bottom: 16px; }
  .mock-dot { width: 10px; height: 10px; border-radius: 50%; }
  .mock-line {
    height: 8px; border-radius: 100px;
    background: rgba(255,255,255,.08);
    margin-bottom: 8px;
  }
  .mock-img-placeholder {
    height: 100px; border-radius: 10px;
    background: linear-gradient(135deg, rgba(124,92,255,.25), rgba(0,212,200,.15));
    margin-bottom: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.8rem;
    color: rgba(255,255,255,.4);
  }
  .mock-btn {
    height: 32px; border-radius: 8px;
    background: linear-gradient(135deg, rgba(124,92,255,.5), rgba(0,212,200,.3));
    width: 70%;
  }

  /* ── CONTACT ── */
  #contact { padding: 120px 6vw; border-top: 1px solid var(--border); }

  .contact-simple { max-width: 900px; margin: 0 auto; }

  .contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  @media (max-width: 700px) { .contact-cards { grid-template-columns: 1fr; } }

  .contact-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 32px;
    text-align: center;
    transition: border-color .3s, transform .3s, box-shadow .3s;
    position: relative; overflow: hidden;
  }
  .contact-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--purple), var(--cyan));
    transform: scaleX(0); transform-origin: left;
    transition: transform .4s ease;
  }
  .contact-card:hover { border-color: rgba(124,92,255,.4); transform: translateY(-5px); box-shadow: 0 20px 50px rgba(0,0,0,.35); }
  .contact-card:hover::before { transform: scaleX(1); }

  .contact-card-icon {
    font-size: 2rem;
    width: 60px; height: 60px;
    border-radius: 16px;
    background: rgba(124,92,255,.1);
    border: 1px solid rgba(124,92,255,.18);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
  }
  .contact-card-label {
    font-size: .72rem; font-weight: 700;
    letter-spacing: .14em; text-transform: uppercase;
    color: var(--muted); margin-bottom: 10px;
  }
  .contact-card-value {
    font-family: var(--font-head);
    font-size: 1.05rem; font-weight: 600;
    color: var(--white);
    text-decoration: none;
    line-height: 1.5;
    transition: color .2s;
    display: block;
  }
  a.contact-card-value:hover { color: var(--purple-lt); }

  /* ── FOOTER ── */
  footer {
    border-top: 1px solid var(--border);
    padding: 48px 6vw 36px;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 24px;
  }
  .footer-brand { display: flex; align-items: center; gap: 10px; }
  .footer-brand img { width: 30px; height: 30px; border-radius: 8px; }
  .footer-brand span {
    font-family: var(--font-head);
    font-size: .92rem;
    font-weight: 700;
    color: var(--muted);
  }
  .footer-brand span em { color: var(--purple-lt); font-style: normal; }
  .footer-copy { font-size: .8rem; color: var(--muted); }
  .footer-links { display: flex; gap: 24px; }
  .footer-links a { font-size: .8rem; color: var(--muted); text-decoration: none; transition: color .2s; }
  .footer-links a:hover { color: var(--white); }

  /* ── ANIMATIONS ── */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .5; transform: scale(.7); }
  }
  @keyframes scrollLine {
    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; }
  }
  @keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
  }
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
  }
  .reveal {
    opacity: 0; transform: translateY(32px);
    transition: opacity .7s ease, transform .7s ease;
  }
  .reveal.visible { opacity: 1; transform: translateY(0); }

  /* ── DIFFERENCE ── */
  #difference {
    padding: 140px 6vw;
    border-top: 1px solid var(--border);
    overflow: hidden;
  }

  .diff-inner {
    max-width: 1200px; margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: start;
  }
  @media (max-width: 900px) {
    .diff-inner { grid-template-columns: 1fr; gap: 60px; }
  }

  .diff-left { position: sticky; top: 120px; }

  .diff-eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: .72rem; font-weight: 600;
    letter-spacing: .16em; text-transform: uppercase;
    color: var(--muted); margin-bottom: 28px;
  }
  .diff-eyebrow::before {
    content: '';
    width: 28px; height: 1px;
    background: var(--purple);
    display: inline-block;
  }

  .diff-headline {
    font-family: var(--font-head);
    font-size: clamp(2.6rem, 4.5vw, 4rem);
    font-weight: 700;
    letter-spacing: -.03em;
    line-height: 1.08;
    margin-bottom: 28px;
  }
  .diff-headline .word-ai {
    display: inline-block;
    background: linear-gradient(135deg, var(--purple-lt), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .diff-body {
    color: var(--muted);
    font-size: 1rem;
    font-weight: 300;
    max-width: 380px;
    line-height: 1.75;
    margin-bottom: 44px;
  }

  .diff-cta {
    display: inline-flex; align-items: center; gap: 10px;
    color: var(--white);
    font-family: var(--font-head);
    font-size: .9rem;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid rgba(124,92,255,.4);
    padding-bottom: 4px;
    transition: border-color .2s, gap .2s;
  }
  .diff-cta:hover { border-color: var(--purple-lt); gap: 16px; }
  .diff-cta svg { width: 16px; height: 16px; transition: transform .2s; }
  .diff-cta:hover svg { transform: translateX(4px); }

  /* right: stacked items */
  .diff-items { display: flex; flex-direction: column; gap: 0; }

  .diff-item {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 24px;
    padding: 36px 0;
    border-bottom: 1px solid var(--border);
    position: relative;
    cursor: default;
    transition: padding-left .3s;
  }
  .diff-item:first-child { border-top: 1px solid var(--border); }
  .diff-item:hover { padding-left: 12px; }

  .diff-item-num {
    font-family: var(--font-head);
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .1em;
    color: var(--purple);
    padding-top: 6px;
  }

  .diff-item-body {}

  .diff-item-title {
    font-family: var(--font-head);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -.01em;
    margin-bottom: 10px;
    display: flex; align-items: center; gap: 12px;
    transition: color .2s;
  }
  .diff-item:hover .diff-item-title { color: var(--purple-lt); }

  .diff-item-title .item-icon {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: rgba(124,92,255,.1);
    border: 1px solid rgba(124,92,255,.2);
    display: flex; align-items: center; justify-content: center;
    font-size: .95rem;
    flex-shrink: 0;
    transition: background .3s;
  }
  .diff-item:hover .item-icon {
    background: rgba(124,92,255,.22);
  }

  .diff-item-desc {
    color: var(--muted);
    font-size: .9rem;
    font-weight: 300;
    line-height: 1.7;
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease, opacity .4s;
    opacity: 0;
  }
  .diff-item:hover .diff-item-desc {
    max-height: 120px;
    opacity: 1;
  }

  .diff-bar {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--purple), var(--cyan));
    transform: scaleY(0); transform-origin: top;
    transition: transform .4s ease;
  }
  .diff-item:hover .diff-bar { transform: scaleY(1); }

  /* ── FAQ ── */
  #faq {
    padding: 120px 6vw;
    border-top: 1px solid var(--border);
  }
  .faq-inner { max-width: 960px; margin: 0 auto; }

  .faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
  }
  @media (max-width: 700px) { .faq-grid { grid-template-columns: 1fr; } }

  .faq-item {
    padding: 32px 36px;
    background: var(--surface);
    border: 1px solid var(--border);
    transition: background .25s;
    cursor: default;
  }
  .faq-item:hover { background: rgba(124,92,255,.06); }

  .faq-q {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    display: flex; align-items: flex-start; gap: 10px;
  }
  .faq-q::before {
    content: 'Q';
    flex-shrink: 0;
    font-size: .68rem; font-weight: 800;
    letter-spacing: .08em;
    color: var(--purple);
    background: rgba(124,92,255,.12);
    border: 1px solid rgba(124,92,255,.2);
    border-radius: 6px;
    padding: 3px 7px;
    margin-top: 2px;
  }
  .faq-a {
    font-size: .9rem;
    color: var(--muted);
    font-weight: 300;
    line-height: 1.7;
    padding-left: 34px;
  }


  @media (max-width: 640px) {
    .nav-links { display: none; }
    .product-info { padding: 40px 28px; }
    .form-row { grid-template-columns: 1fr; }
    footer { flex-direction: column; text-align: center; }
    .svc-header { flex-direction: column; gap: 16px; }
  }