/* =====================================================
 * KINETIC LAB — Top / Product Portal
 * Design language: Sporty Precision (white surface + graphite instrument)
 * Aligned with kinetic_faq/css/style.css + DESIGN.md v3.3
 * ===================================================== */

:root {
  --brand: #0EA5E9;
  --brand-dark: #0284C7;
  --teal: #14B8A6;
  --accent: #6366F1;
  --grad: linear-gradient(135deg, #0EA5E9 0%, #14B8A6 100%);
  --grad-rev: linear-gradient(135deg, #14B8A6 0%, #0EA5E9 100%);
  --grad-soft: linear-gradient(135deg, rgba(14,165,233,0.08), rgba(20,184,166,0.08));
  --grad-sensor: linear-gradient(135deg, #14B8A6 0%, #22D3EE 100%);

  --ink: #0F172A;
  --ink-2: #1E293B;
  --text: #334155;
  --text-2: #475569;
  --muted: #64748B;

  --line: #E2E8F0;
  --line-2: #F1F5F9;
  --bg: #F8FAFC;
  --bg-soft: #F0F9FF;
  --card: #FFFFFF;

  --danger: #EF4444;
  --success: #10B981;
  --warn: #F59E0B;

  --tech-bg: #0F172A;
  --tech-bg-2: #1E293B;
  --tech-line: #334155;
  --tech-text: #F1F5F9;
  --tech-text-2: #94A3B8;
  --tech-cyan: #22D3EE;

  --header-h: 62px;
  --maxw: 1180px;
  --radius: 18px;
  --radius-sm: 12px;

  --shadow-sm: 0 1px 3px rgba(15,23,42,0.04);
  --shadow-md: 0 8px 30px rgba(15,23,42,0.08);
  --shadow-lg: 0 20px 50px rgba(15,23,42,0.12);

  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  font-family: var(--sans);
  background: linear-gradient(180deg, #F0F9FF 0%, #FFFFFF 22%, #F8FAFC 100%);
  background-attachment: fixed;
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}
img, svg { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
a { color: var(--brand-dark); text-decoration: none; }
h1, h2, h3, h4 { color: var(--ink); letter-spacing: -0.01em; }
.mono { font-family: var(--mono); }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ============ Header ============ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { height: 100%; display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand .brand-logo { height: 34px; width: auto; flex: 0 0 auto; }
.header-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.header-nav a {
  font-size: 13px; font-weight: 600; color: var(--text-2);
  padding: 8px 12px; border-radius: 10px; transition: color .15s, background .15s;
}
.header-nav a:hover { color: var(--ink); background: var(--line-2); }
.header-cta {
  font-size: 13px; font-weight: 700; color: #fff !important;
  background: var(--grad); padding: 9px 16px !important; border-radius: 10px;
  box-shadow: 0 4px 14px rgba(14,165,233,0.32);
  display: inline-flex; align-items: center; gap: 6px;
}
.header-cta:hover { filter: brightness(1.03); }
.header-cta svg { width: 15px; height: 15px; }
.menu-toggle { display: none; }

/* ============ Hero ============ */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #0B1220 0%, #0F172A 55%, #16243B 100%);
  color: var(--tech-text);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .55;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(ellipse 75% 75% at 50% 0%, black, transparent 75%);
  mask-image: radial-gradient(ellipse 75% 75% at 50% 0%, black, transparent 75%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 1;
  background:
    radial-gradient(680px 320px at 12% -10%, rgba(14,165,233,0.28), transparent 60%),
    radial-gradient(620px 360px at 96% 6%, rgba(20,184,166,0.24), transparent 60%);
}
.hero::after { z-index: 1; }
.hero .wrap { position: relative; z-index: 2; padding: 64px 20px 54px; }

/* hero background slideshow */
.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-bg .slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; will-change: opacity, transform;
  animation: heroFade 36s infinite;
}
.hero-bg .slide:nth-child(1) { animation-delay: 0s; }
.hero-bg .slide:nth-child(2) { animation-delay: 7.2s; }
.hero-bg .slide:nth-child(3) { animation-delay: 14.4s; }
.hero-bg .slide:nth-child(4) { animation-delay: 21.6s; }
.hero-bg .slide:nth-child(5) { animation-delay: 28.8s; }
.hero-bg .veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(11,18,32,0.74) 0%, rgba(11,18,32,0.80) 55%, rgba(16,36,59,0.92) 100%),
    linear-gradient(110deg, rgba(11,18,32,0.55) 0%, rgba(11,18,32,0.10) 60%);
}
@keyframes heroFade {
  0%   { opacity: 0; transform: scale(1.10); }
  3%   { opacity: 1; }
  18%  { opacity: 1; }
  21%  { opacity: 0; }
  100% { opacity: 0; transform: scale(1.0); }
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--tech-cyan);
  padding: 6px 13px; border-radius: 999px;
  background: rgba(34,211,238,0.08); border: 1px solid rgba(34,211,238,0.22);
}
.eyebrow .blink {
  width: 7px; height: 7px; border-radius: 50%; background: var(--tech-cyan);
  box-shadow: 0 0 10px var(--tech-cyan); animation: blink 1.4s steps(2,end) infinite;
}
@keyframes blink { 50% { opacity: .25; } }
.hero h1 {
  color: #fff; font-size: clamp(30px, 5vw, 50px); font-weight: 800; line-height: 1.16;
  margin: 22px 0 16px; letter-spacing: -0.02em; max-width: 820px;
}
.hero h1 .grad-text {
  background: linear-gradient(120deg, #38BDF8 0%, #2DD4BF 60%, #22D3EE 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero .lead { color: var(--tech-text-2); font-size: clamp(15px,2vw,17px); max-width: 620px; margin: 0 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-on-dark {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--grad); color: #fff; font-weight: 700; font-size: 14.5px;
  padding: 14px 24px; border-radius: 12px; border: 0;
  box-shadow: 0 10px 26px rgba(14,165,233,0.4); transition: transform .12s, filter .15s;
}
.btn-on-dark:hover { filter: brightness(1.06); }
.btn-on-dark:active { transform: scale(.97); }
.btn-ghost-dark {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.05); color: #fff; font-weight: 700; font-size: 14.5px;
  padding: 14px 24px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.18);
  transition: background .15s, border-color .15s;
}
.btn-ghost-dark:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.3); }
.btn-on-dark svg, .btn-ghost-dark svg { width: 17px; height: 17px; }

/* hero stat strip */
.hero-stats {
  position: relative; z-index: 1;
  display: flex; flex-wrap: wrap; gap: 28px 44px; margin-top: 44px;
  padding-top: 26px; border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stats .hs { }
.hero-stats .hs .v {
  font-family: var(--mono); font-size: 22px; font-weight: 700; color: #fff; line-height: 1;
}
.hero-stats .hs .v .grad-text {
  background: var(--grad-sensor); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-stats .hs .l { font-size: 12px; color: var(--tech-text-2); margin-top: 7px; }
.hero-stats .hs.credit { max-width: 560px; }
.hero-stats .hs.credit .cl { font-size: 12.5px; color: var(--tech-text-2); line-height: 1.85; }
.hero-stats .hs.credit .cl .role {
  font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: 0.04em;
  color: var(--tech-cyan); margin-right: 4px;
}
.hero-stats .hs.credit .cl b { color: #fff; font-weight: 700; }
.hero-stats .hs.credit .cl span.org { color: var(--tech-text); }

/* ============ Sections ============ */
.section { padding: 72px 0; position: relative; }
.section.alt { background: linear-gradient(180deg, rgba(240,249,255,0.7), rgba(248,250,252,0)); }
.section-head { margin-bottom: 34px; max-width: 720px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--brand-dark); margin: 0 0 10px;
  display: inline-flex; align-items: center; gap: 8px;
}
.kicker .num {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 22px; height: 22px; padding: 0 6px; border-radius: 7px;
  background: var(--grad); color: #fff; font-size: 11px;
}
.section-head h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 800; margin: 0; line-height: 1.18; }
.section-head p { margin: 12px 0 0; color: var(--text-2); font-size: 15.5px; }

/* ============ Product lineup overview (sec 0) ============ */
.lineup { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.lineup-card {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: 22px;
  padding: 26px; box-shadow: var(--shadow-sm);
  transition: transform .18s, box-shadow .18s, border-color .18s;
  display: flex; flex-direction: column;
}
.lineup-card::after {
  content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 0;
  background: var(--grad); transition: width .3s ease;
}
.lineup-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(14,165,233,0.35); }
.lineup-card:hover::after { width: 100%; }
.lineup-card .badge {
  align-self: flex-start;
  font-family: var(--mono); font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em;
  padding: 4px 11px; border-radius: 999px; margin-bottom: 16px;
}
.lineup-card .badge.user { background: rgba(14,165,233,0.1); color: var(--brand-dark); border: 1px solid rgba(14,165,233,0.2); }
.lineup-card .badge.pro { background: rgba(20,184,166,0.1); color: #0F766E; border: 1px solid rgba(20,184,166,0.22); }
.lineup-card .badge.opt { background: rgba(99,102,241,0.1); color: #4338CA; border: 1px solid rgba(99,102,241,0.2); }
.lineup-card h3 { font-size: 20px; font-weight: 800; margin: 0 0 6px; }
.lineup-card .en { font-family: var(--mono); font-size: 11.5px; color: var(--muted); letter-spacing: 0.04em; margin-bottom: 12px; }
.lineup-card p { font-size: 13.5px; color: var(--text-2); margin: 0 0 18px; flex: 1; }
.lineup-card .go {
  display: inline-flex; align-items: center; gap: 7px; align-self: flex-start;
  font-size: 13px; font-weight: 700; color: var(--brand-dark);
}
.lineup-card .go svg { width: 16px; height: 16px; transition: transform .18s; }
.lineup-card:hover .go svg { transform: translateX(3px); }

/* ============ Product section header (sub-brand) ============ */
.prod-band { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center; }
.prod-band.reverse .pb-media { order: 2; }
.pb-logo { height: 38px; width: auto; margin-bottom: 18px; }
.pb-tag {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  padding: 5px 12px; border-radius: 999px; margin-bottom: 16px;
}
.pb-tag.user { background: var(--grad-soft); color: var(--brand-dark); border: 1px solid rgba(14,165,233,0.2); }
.pb-tag.pro { background: rgba(20,184,166,0.08); color: #0F766E; border: 1px solid rgba(20,184,166,0.22); }
.pb-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.prod-band h2 { font-size: clamp(24px, 3.4vw, 33px); font-weight: 800; margin: 0 0 12px; line-height: 1.2; }
.prod-band .desc { font-size: 15px; color: var(--text-2); margin: 0 0 22px; }
.prod-band .feat-list { list-style: none; margin: 0 0 8px; padding: 0; }
.prod-band .feat-list li {
  position: relative; padding-left: 28px; margin-bottom: 9px;
  font-size: 14px; color: var(--text); line-height: 1.6;
}
.prod-band .feat-list li svg {
  position: absolute; left: 0; top: 3px; width: 19px; height: 19px; color: var(--teal);
}

/* media frames */
.pb-media { position: relative; }
.media-frame {
  position: relative; border-radius: 22px; padding: 22px;
  background: linear-gradient(160deg, #0F172A 0%, #1E293B 100%);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.media-frame::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 20px 20px;
  -webkit-mask-image: linear-gradient(180deg, black, transparent 90%);
  mask-image: linear-gradient(180deg, black, transparent 90%);
}
.media-frame .mf-tag {
  position: absolute; top: 14px; left: 16px; z-index: 2;
  font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: 0.14em;
  color: var(--tech-cyan); display: inline-flex; align-items: center; gap: 6px;
}
.media-frame .mf-tag .blink { width: 6px; height: 6px; border-radius: 50%; background: var(--tech-cyan); box-shadow: 0 0 8px var(--tech-cyan); animation: blink 1.4s steps(2,end) infinite; }

/* app screenshot gallery (phones) */
.shots { position: relative; z-index: 1; display: flex; gap: 14px; justify-content: center; align-items: flex-end; }
.shots img {
  width: 100%; max-width: 168px; border-radius: 18px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.45); border: 1px solid rgba(255,255,255,0.08);
}
.shots img.lift { margin-bottom: 22px; }
.shots.two img { max-width: 188px; }

/* device photo */
.device-shot { position: relative; z-index: 1; }
.device-shot img { width: 100%; border-radius: 14px; box-shadow: 0 14px 36px rgba(0,0,0,0.4); }
.device-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.device-grid img { width: 100%; border-radius: 12px; box-shadow: 0 10px 26px rgba(0,0,0,0.38); border: 1px solid rgba(255,255,255,0.06); }

/* ============ Link cards (sec 1 & 2) ============ */
.links-head {
  display: flex; align-items: center; gap: 10px; margin: 8px 0 16px;
  font-size: 12px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}
.links-head::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.link-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.link-grid.four { grid-template-columns: repeat(2, 1fr); }
.link-card {
  position: relative; overflow: hidden;
  display: flex; align-items: flex-start; gap: 14px;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: 18px 18px; box-shadow: var(--shadow-sm);
  transition: transform .16s, box-shadow .16s, border-color .16s;
}
.link-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: rgba(14,165,233,0.4); }
.link-card .lc-ic {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  background: var(--grad-soft); border: 1px solid rgba(14,165,233,0.18);
  color: var(--brand-dark); display: flex; align-items: center; justify-content: center;
}
.link-card.sensor .lc-ic { background: rgba(20,184,166,0.08); border-color: rgba(20,184,166,0.22); color: #0F766E; }
.link-card .lc-ic svg { width: 22px; height: 22px; }
.link-card .lc-body { min-width: 0; flex: 1; }
.link-card .lc-title {
  display: flex; align-items: center; gap: 7px; flex-wrap: wrap;
  font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 3px;
}
.link-card .lc-title .ext {
  font-family: var(--mono); font-size: 9px; font-weight: 700; letter-spacing: 0.06em;
  color: var(--muted); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px;
}
.link-card .lc-desc { font-size: 12.5px; color: var(--muted); line-height: 1.6; margin: 0; }
.link-card .lc-url { font-family: var(--mono); font-size: 11px; color: var(--brand-dark); margin-top: 7px; word-break: break-all; }
.link-card .lc-arrow {
  flex-shrink: 0; align-self: center; color: var(--muted);
  width: 20px; height: 20px; transition: transform .16s, color .16s;
}
.link-card:hover .lc-arrow { color: var(--brand-dark); transform: translateX(3px); }
.link-card.primary { background: linear-gradient(135deg, rgba(14,165,233,0.06), rgba(20,184,166,0.06)); border-color: rgba(14,165,233,0.3); }

/* ============ Options (sec 3) ============ */
.opt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.opt-card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
  box-shadow: var(--shadow-sm); transition: transform .18s, box-shadow .18s, border-color .18s;
}
.opt-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(14,165,233,0.3); }
.opt-figure {
  position: relative;
  background: radial-gradient(130% 120% at 50% 10%, #FFFFFF 0%, #EAF4FB 100%);
  border-bottom: 1px solid var(--line); padding: 26px; min-height: 210px;
  display: flex; align-items: center; justify-content: center;
}
.opt-figure img { max-height: 188px; width: auto; filter: drop-shadow(0 10px 22px rgba(15,23,42,0.12)); }
.opt-figure .opt-num {
  position: absolute; top: 14px; left: 14px;
  font-family: var(--mono); font-size: 11px; font-weight: 700; color: var(--brand-dark);
  background: rgba(255,255,255,0.8); border: 1px solid var(--line); border-radius: 7px; padding: 3px 9px;
}
.opt-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.opt-body h3 { font-size: 18px; font-weight: 800; margin: 0 0 2px; }
.opt-body .en { font-family: var(--mono); font-size: 11px; color: var(--muted); letter-spacing: 0.04em; margin-bottom: 14px; }
.opt-block { margin-bottom: 14px; }
.opt-block .ob-label {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 800; letter-spacing: 0.06em; color: var(--brand-dark);
  text-transform: uppercase; margin-bottom: 5px;
}
.opt-block .ob-label svg { width: 14px; height: 14px; }
.opt-block p { font-size: 13.5px; color: var(--text-2); margin: 0; line-height: 1.7; }
.opt-foot { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line-2); }
.opt-buy {
  display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%;
  background: var(--grad); color: #fff; font-weight: 700; font-size: 13.5px;
  padding: 12px 16px; border-radius: 12px;
  box-shadow: 0 6px 16px rgba(14,165,233,0.28); transition: filter .15s, transform .12s;
}
.opt-buy:hover { filter: brightness(1.05); }
.opt-buy:active { transform: scale(.97); }
.opt-buy svg { width: 16px; height: 16px; }
.opt-note { text-align: center; font-size: 12.5px; color: var(--muted); margin-top: 26px; }

/* ============ R&D banner (sec 4) ============ */
.rnd-banner {
  position: relative; overflow: hidden;
  background: linear-gradient(165deg, #0B1220 0%, #0F172A 55%, #122B3A 100%);
  border-radius: 28px; padding: 52px 48px; color: var(--tech-text);
}
.rnd-banner::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 50% 0%, black, transparent 80%);
  mask-image: radial-gradient(ellipse 90% 90% at 50% 0%, black, transparent 80%);
}
.rnd-banner::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(600px 280px at 8% 0%, rgba(20,184,166,0.22), transparent 60%),
    radial-gradient(540px 300px at 100% 100%, rgba(34,211,238,0.18), transparent 60%);
}
.rnd-banner .rb-inner { position: relative; z-index: 1; }
.rnd-banner .rb-eyebrow {
  font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--tech-cyan);
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px;
}
.rnd-banner .rb-eyebrow .blink { width: 7px; height: 7px; border-radius: 50%; background: var(--tech-cyan); box-shadow: 0 0 10px var(--tech-cyan); animation: blink 1.4s steps(2,end) infinite; }
.rnd-banner h2 { color: #fff; font-size: clamp(24px, 3.6vw, 34px); font-weight: 800; margin: 0 0 14px; max-width: 760px; line-height: 1.25; }
.rnd-banner .rb-lead { color: var(--tech-text-2); font-size: 15px; max-width: 680px; margin: 0 0 30px; }
.rnd-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.rnd-cell {
  background: rgba(255,255,255,0.04); border: 1px solid var(--tech-line);
  border-radius: 16px; padding: 22px;
}
.rnd-cell .rc-ic {
  width: 42px; height: 42px; border-radius: 12px; margin-bottom: 14px;
  background: rgba(34,211,238,0.1); border: 1px solid rgba(34,211,238,0.22);
  color: var(--tech-cyan); display: flex; align-items: center; justify-content: center;
}
.rnd-cell .rc-ic svg { width: 22px; height: 22px; }
.rnd-cell h3 { color: #fff; font-size: 16px; font-weight: 700; margin: 0 0 7px; }
.rnd-cell p { color: var(--tech-text-2); font-size: 13px; margin: 0; line-height: 1.7; }
.rnd-credit {
  margin-top: 30px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px;
  font-family: var(--mono); font-size: 12px; color: var(--tech-text-2); letter-spacing: 0.04em;
}
.rnd-credit b { color: #fff; font-weight: 700; }

/* ============ Footer ============ */
.site-footer { margin-top: 20px; border-top: 1px solid var(--line); background: rgba(255,255,255,0.5); }
.site-footer .wrap { padding-top: 40px; padding-bottom: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 30px; }
.footer-brand .footer-logo { height: 34px; width: auto; margin-bottom: 14px; }
.footer-brand p { font-size: 13px; color: var(--muted); max-width: 280px; margin: 0; }
.footer-col h4 {
  font-size: 11px; font-weight: 800; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 12px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 9px; }
.footer-col a { font-size: 13.5px; color: var(--text-2); }
.footer-col a:hover { color: var(--brand-dark); }
.footer-bottom {
  margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  font-size: 12px; color: var(--muted);
}
.footer-bottom .mono { font-size: 11px; }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .lineup { grid-template-columns: 1fr; }
  .opt-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .rnd-grid { grid-template-columns: 1fr; }
  .prod-band { grid-template-columns: 1fr; gap: 28px; }
  .prod-band.reverse .pb-media { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px; }
}
@media (max-width: 760px) {
  .header-nav { display: none; }
  .menu-toggle {
    display: inline-flex; margin-left: auto;
    width: 42px; height: 42px; border-radius: 10px;
    border: 1px solid var(--line); background: #fff;
    align-items: center; justify-content: center; color: var(--ink);
  }
  .header-nav.open {
    display: flex; flex-direction: column; align-items: stretch; gap: 2px;
    position: absolute; top: var(--header-h); left: 0; right: 0;
    background: rgba(255,255,255,0.98); backdrop-filter: blur(12px);
    padding: 12px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md);
  }
  .header-nav.open a { padding: 12px 14px; }
  .header-nav.open .header-cta { text-align: center; justify-content: center; }
  .section { padding: 52px 0; }
  .hero .wrap { padding: 48px 20px 44px; }
  .hero-stats { gap: 20px 30px; }
  .link-grid, .link-grid.four { grid-template-columns: 1fr; }
  .rnd-banner { padding: 36px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .shots img { max-width: 140px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; transition: none !important; }
  .hero-bg .slide:first-child { opacity: 1 !important; }
}