/* ZetaIQ Telemetry — zetaiq.io. Brand: navy / cyan, Inter. No framework. */
:root {
  --bg: #08111F; --surface: #0C1A2E; --card: #0F2035; --chip: #12263F;
  --line: #1C3050; --line2: #243858; --navy2: #0A1830; --teal-bg: #0B2A38;
  --cyan: #22D3EE; --cyan-d: #06B6D4; --cyan-glow: rgba(6,182,212,.12);
  --white: #F1F5F9; --soft: #CBD5E1; --muted: #94A3B8; --dim: #64748B;
  --amber: #F59E0B; --green: #34D399; --red: #EF4444;
  --font: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: ui-monospace, 'JetBrains Mono', SFMono-Regular, Menlo, monospace;
  --maxw: 1120px; --radius: 14px; --nav-h: 64px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; overflow-x: hidden; background: var(--bg); color: var(--soft); font-family: var(--font); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--cyan-d); }
h1, h2, h3, h4 { color: var(--white); margin: 0; font-weight: 700; letter-spacing: -0.01em; line-height: 1.15; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--cyan); color: var(--bg); padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section--alt { background: var(--surface); border-top: 1px solid rgba(255,255,255,.04); border-bottom: 1px solid rgba(255,255,255,.04); }
.section__head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.eyebrow { display: block; color: var(--cyan-d); font-size: 12px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; margin-bottom: 14px; }
.h2 { font-size: clamp(28px, 3.6vw, 38px); }
.lead { color: var(--muted); font-size: 17px; margin-top: 16px; }
.note { color: var(--dim); font-size: 13px; }
.small { font-size: 14px; color: var(--muted); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 24px; border-radius: 10px; font-weight: 600; font-size: 15px; border: 1px solid transparent; transition: background .15s, color .15s, border-color .15s; cursor: pointer; }
.btn--primary { background: var(--cyan-d); color: var(--bg); }
.btn--primary:hover { background: var(--cyan); color: var(--bg); }
.btn--ghost { background: var(--card); color: var(--soft); border-color: rgba(255,255,255,.08); }
.btn--ghost:hover { background: var(--chip); color: var(--white); }
.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--block { width: 100%; }

/* nav */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; height: var(--nav-h); background: rgba(8,17,31,.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,.05); }
.nav .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--white); }
.brand__mark { width: 30px; height: auto; }
.brand__name { font-weight: 800; font-size: 18px; letter-spacing: -0.02em; line-height: 1; }
.brand__name em { font-style: normal; color: var(--cyan-d); }
.brand__tail { display: block; color: var(--dim); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; margin-top: 3px; }
.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a { color: var(--muted); font-size: 14px; font-weight: 500; padding: 8px 12px; border-radius: 8px; }
.nav__links a:hover { color: var(--white); background: rgba(255,255,255,.04); }
.nav__links a.nav__cta { color: var(--bg); margin-left: 8px; }
.nav__links a.nav__cta:hover { background: var(--cyan); }
.nav__toggle { display: none; background: none; border: 1px solid rgba(255,255,255,.1); color: var(--soft); border-radius: 8px; width: 40px; height: 40px; align-items: center; justify-content: center; cursor: pointer; }
@media (max-width: 900px) {
  .nav__links { position: absolute; top: var(--nav-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 2px; padding: 12px 24px 20px; background: rgba(8,17,31,.98); border-bottom: 1px solid rgba(255,255,255,.06); display: none; }
  .nav.is-open .nav__links { display: flex; }
  .nav__links a { padding: 12px; }
  .nav__links a.nav__cta { margin: 8px 0 0; }
  .nav__toggle { display: inline-flex; }
}

/* hero */
.hero { padding: calc(var(--nav-h) + 88px) 0 80px; background: radial-gradient(ellipse 70% 50% at 50% -5%, var(--cyan-glow) 0%, transparent 70%); }
.hero .container { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero__kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; background: rgba(15,32,53,.6); border: 1px solid rgba(255,255,255,.08); border-radius: 999px; padding: 6px 14px; margin-bottom: 28px; }
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan-d); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: .4; transform: scale(1.4);} }
.hero h1 { font-size: clamp(38px, 5.2vw, 60px); font-weight: 800; letter-spacing: -0.03em; }
.hero h1 span { background: linear-gradient(135deg, var(--cyan-d), var(--cyan)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: var(--cyan); }
.hero__lead { color: var(--muted); font-size: 18px; margin: 22px 0 32px; max-width: 540px; }
.hero__lead strong { color: var(--soft); font-weight: 600; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 900px) { .hero .container { grid-template-columns: 1fr; gap: 40px; } .hero { padding-top: calc(var(--nav-h) + 56px); } }

/* proof strip */
.proof { border-top: 1px solid rgba(255,255,255,.05); border-bottom: 1px solid rgba(255,255,255,.05); background: rgba(12,26,46,.6); padding: 22px 0; }
.proof ul { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 12px; }
.proof li { display: inline-flex; align-items: center; gap: 8px; color: var(--soft); font-size: 14px; font-weight: 500; padding: 8px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,.07); background: var(--card); }
.proof li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan-d); }

/* cards and grids */
.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 960px) { .grid--4, .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid rgba(6,182,212,.12); border-radius: var(--radius); padding: 28px; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }
.card > .glyph { width: 56px; height: 56px; margin-bottom: 18px; }
.icon-badge { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; border: 1px solid; }
.icon-badge--red { background: rgba(239,68,68,.1); border-color: rgba(239,68,68,.25); color: var(--red); }
.icon-badge--amber { background: rgba(245,158,11,.1); border-color: rgba(245,158,11,.25); color: var(--amber); }
.icon-badge--cyan { background: rgba(6,182,212,.1); border-color: rgba(6,182,212,.25); color: var(--cyan-d); }
.band { margin-top: 24px; background: var(--chip); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: center; }
.band > .glyph, .band > img { width: 56px; height: 56px; }
.band h3 { font-size: 13px; letter-spacing: .2em; text-transform: uppercase; color: var(--cyan); margin-bottom: 8px; }
.band p { color: var(--soft); font-size: 15px; }
.band .note { margin-top: 8px; }
.band--center { grid-template-columns: 1fr; text-align: center; }
@media (max-width: 620px) { .band { grid-template-columns: 1fr; } }

/* glyph colour utilities (used inside SVG symbols) */
.f-cyan { fill: var(--cyan); } .f-cyand { fill: var(--cyan-d); } .f-soft { fill: var(--soft); } .f-muted { fill: var(--muted); } .f-dim { fill: var(--dim); }
.f-line { fill: var(--line); } .f-card { fill: var(--card); } .f-card2 { fill: var(--surface); } .f-chip { fill: var(--chip); } .f-bg { fill: var(--bg); } .f-navy2 { fill: var(--navy2); }
.f-amber { fill: var(--amber); } .f-green { fill: var(--green); } .f-white { fill: var(--white); } .f-none { fill: none; }
.s-cyan { stroke: var(--cyan); } .s-cyand { stroke: var(--cyan-d); } .s-soft { stroke: var(--soft); } .s-line { stroke: var(--line); } .s-amber { stroke: var(--amber); } .s-green { stroke: var(--green); } .s-bg { stroke: var(--bg); } .s-chip { stroke: var(--chip); }
.glyph { width: 48px; height: 48px; }

/* integrations */
.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 960px) { .tiles { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .tiles { grid-template-columns: 1fr; } }
.tile { background: var(--card); border: 1px solid rgba(255,255,255,.07); border-radius: var(--radius); padding: 22px; }
.tile__logo { height: 36px; display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.tile__logo img { height: 32px; width: auto; }
.tile__word { font-weight: 800; font-size: 17px; color: var(--white); letter-spacing: -0.01em; }
.tile__word--mono { font-family: var(--mono); font-weight: 600; font-size: 15px; color: var(--cyan); }
.tile h3 { font-size: 15px; margin-bottom: 6px; }
.tile p { color: var(--muted); font-size: 14px; }
.trademark { margin-top: 20px; text-align: center; }

/* architecture */
.arch { display: grid; grid-template-columns: 1fr 44px 1.25fr 44px 1fr; gap: 12px; align-items: stretch; }
.arch__zone { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.arch__zone--core { border-color: rgba(6,182,212,.45); }
.arch__zone h3 { font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--cyan-d); margin: 0; }
.arch__robots { display: flex; justify-content: space-around; padding-top: 6px; }
.arch__robots .glyph { width: 52px; height: 52px; }
.arch__box { background: var(--card); border: 1px solid var(--cyan-d); border-radius: 10px; padding: 16px; }
.arch__box h4 { font-size: 15px; margin-bottom: 2px; }
.arch__box .sub { color: var(--cyan); font-size: 13px; font-weight: 600; margin-bottom: 10px; display: block; }
.arch__box ul li { color: var(--muted); font-size: 13.5px; padding: 3px 0; }
.arch__box--logo { display: grid; grid-template-columns: 40px 1fr; gap: 12px; align-items: start; }
.arch__box--logo img { width: 40px; height: 40px; }
.arch__gateway { background: var(--chip); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; }
.arch__gateway strong { color: var(--soft); font-size: 14px; display: block; margin-bottom: 4px; }
.arch__gateway span { color: var(--dim); font-size: 13px; }
.arch__stores { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; text-align: center; }
.arch__store .glyph { width: 64px; height: 64px; margin: 0 auto 8px; }
.arch__store h4 { font-size: 15px; }
.arch__store p { color: var(--muted); font-size: 13px; }
.arch__clock { background: var(--teal-bg); border: 1px solid var(--cyan-d); border-radius: 10px; padding: 12px; text-align: center; margin-top: auto; }
.arch__clock strong { display: block; color: var(--cyan); font-size: 13px; letter-spacing: .18em; text-transform: uppercase; }
.arch__clock span { color: var(--soft); font-size: 13px; }
.arch__consumer { display: grid; grid-template-columns: 52px 1fr; gap: 14px; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.arch__consumer--accent { border-color: var(--cyan-d); }
.arch__consumer .glyph { width: 52px; height: 52px; }
.arch__consumer h4 { font-size: 15px; margin-bottom: 3px; }
.arch__consumer p { color: var(--muted); font-size: 13px; }
.arch__consumer .logos { display: flex; flex-direction: column; gap: 6px; align-items: center; }
.arch__consumer .logos img, .arch__consumer .logos .glyph { width: 26px; height: 26px; }
.arch__foot { color: var(--dim); font-size: 13px; font-style: italic; text-align: center; margin-top: auto; }
.arch__arrow { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; color: var(--cyan-d); }
.arch__arrow svg { width: 32px; height: 32px; }
.arch__arrow small { color: var(--dim); font-size: 11px; }
@media (max-width: 960px) { .arch { grid-template-columns: 1fr; } .arch__arrow svg { transform: rotate(90deg); } }

/* video slot */
.video-slot { margin: 0; }
.video-slot__frame { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; background: var(--navy2); border: 1px solid var(--line); box-shadow: 0 30px 80px -30px rgba(6,182,212,.25); }
.video-slot__frame > svg, .video-slot__frame > video { position: absolute; inset: 0; width: 100%; height: 100%; }
.video-slot figcaption { color: var(--dim); font-size: 13px; margin-top: 10px; }
.video-slot--panel .video-slot__frame { border-radius: 10px; box-shadow: none; }

/* capabilities */
.panel { background: var(--card); border: 1px solid rgba(6,182,212,.12); border-radius: var(--radius); padding: 18px 18px 24px; display: flex; flex-direction: column; gap: 16px; }
.panel h3 { font-size: 18px; margin-bottom: 6px; }
.panel p { color: var(--muted); font-size: 14.5px; }
.pathway { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 10px; }
.pathway span { font-family: var(--mono); font-size: 12px; color: var(--cyan); background: var(--chip); border: 1px solid var(--line); border-radius: 6px; padding: 3px 8px; }
.pathway i { color: var(--dim); font-style: normal; }

/* poster art animation */
.flow { stroke-dasharray: 6 8; animation: flow 2.4s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -28; } }
.pulse { transform-origin: center; transform-box: fill-box; animation: halo 2.2s ease-in-out infinite; }
@keyframes halo { 0%,100% { opacity: .18; transform: scale(1);} 50% { opacity: .35; transform: scale(1.15);} }

/* insights */
.insights { display: grid; grid-template-columns: 1fr 44px 380px 44px 1fr; gap: 12px; align-items: center; }
.insights__col { display: flex; flex-direction: column; gap: 12px; }
.input { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 16px; display: grid; grid-template-columns: 44px 1fr; gap: 14px; }
.input--amber { border-color: var(--amber); } .input--green { border-color: var(--green); }
.input .glyph { width: 44px; height: 44px; }
.input h3 { font-size: 15px; display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 6px; }
.input p { color: var(--muted); font-size: 13.5px; }
.owner { font-size: 10px; letter-spacing: .16em; text-transform: uppercase; border: 1px solid; border-radius: 999px; padding: 2px 8px; font-weight: 600; white-space: nowrap; }
.owner--cyan { color: var(--cyan); border-color: var(--cyan); } .owner--amber { color: var(--amber); border-color: var(--amber); } .owner--green { color: var(--green); border-color: var(--green); }
.hex { --clip: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%); clip-path: var(--clip); background: var(--cyan-d); padding: 1.5px; }
.hex__inner { clip-path: var(--clip); background: var(--card); padding: 78px 44px 92px; display: flex; flex-direction: column; gap: 8px; text-align: center; }
.hex__title { color: var(--cyan); font-size: 12px; letter-spacing: .22em; text-transform: uppercase; font-weight: 700; margin-bottom: 6px; }
.stage { background: var(--chip); border: 1px solid var(--line); border-radius: 6px; padding: 7px 10px; text-align: left; }
.stage strong { display: block; color: var(--cyan-d); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; }
.stage span { color: var(--muted); font-size: 12px; }
.hex__foot { color: var(--dim); font-size: 12px; font-style: italic; margin: 6px auto 0; max-width: 72%; }
.output { background: var(--card); border: 1px solid var(--cyan-d); border-radius: 10px; padding: 18px; }
.output--green { border-color: var(--green); }
.output .glyph { width: 52px; height: 52px; margin-bottom: 12px; }
.output h3 { font-size: 17px; margin-bottom: 8px; }
.output p { color: var(--muted); font-size: 14px; }
.insights__arrow { display: flex; flex-direction: column; justify-content: space-around; align-items: center; color: var(--cyan-d); height: 100%; }
.insights__arrow svg { width: 28px; height: 28px; }
@media (max-width: 960px) {
  .insights { grid-template-columns: 1fr; }
  .insights__arrow { flex-direction: row; }
  .insights__arrow svg { transform: rotate(90deg); }
  .hex { max-width: 380px; margin: 0 auto; }
}

/* robots */
.robots { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 960px) { .robots { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.robot { background: var(--card); border: 1px solid rgba(255,255,255,.07); border-radius: var(--radius); padding: 22px; text-align: center; }
.robot .glyph { width: 64px; height: 64px; margin: 0 auto 14px; }
.robot h3 { font-size: 15px; margin-bottom: 4px; }
.robot p { color: var(--dim); font-size: 13px; }
.industries { margin-top: 28px; text-align: center; color: var(--muted); font-size: 15px; }
.industries strong { color: var(--soft); font-weight: 600; }

/* pricing */
.price { background: var(--card); border: 1px solid rgba(6,182,212,.2); border-radius: var(--radius); padding: 28px; display: grid; grid-template-columns: 64px 1fr; gap: 20px; }
.price .glyph { width: 64px; height: 64px; }
.price h3 { font-size: 20px; }
.price .unit { color: var(--cyan); font-weight: 700; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; display: block; }
.price p { color: var(--muted); font-size: 15px; }
.price .sizes { display: flex; gap: 6px; margin-top: 12px; }
.price .sizes span { font-family: var(--mono); font-size: 12px; color: var(--soft); background: var(--chip); border: 1px solid var(--line); border-radius: 6px; padding: 3px 10px; }
.nots { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 24px; }
.nots li { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; border: 1px solid rgba(52,211,153,.35); background: rgba(52,211,153,.06); color: var(--soft); font-size: 14px; font-weight: 500; }
.nots li::before { content: '✓'; color: var(--green); font-weight: 700; }

/* company */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-bottom: 24px; }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } .stat strong { font-size: 22px; } }
.stat { background: var(--chip); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; text-align: center; }
.stat strong { display: block; color: var(--white); font-size: 28px; font-weight: 800; letter-spacing: -0.02em; }
.stat span { color: var(--muted); font-size: 13px; }
.company-strip { margin-top: 24px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 28px; }
.company-strip p { color: var(--muted); font-size: 14px; }
.company-strip .links { display: flex; gap: 18px; align-items: center; font-size: 14px; font-weight: 500; }

/* faq */
.faq { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq details { background: var(--card); border: 1px solid rgba(255,255,255,.07); border-radius: 12px; padding: 0 22px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 0; color: var(--white); font-weight: 600; font-size: 16px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--cyan-d); font-size: 22px; font-weight: 300; flex: 0 0 auto; }
.faq details[open] summary::after { content: '–'; }
.faq details p { color: var(--muted); font-size: 15px; padding: 0 0 20px; }

/* early access */
.start { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 40px; }
@media (max-width: 720px) { .start { grid-template-columns: 1fr; } }
.start__opt { background: var(--chip); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: grid; grid-template-columns: 40px 1fr; gap: 14px; }
.start__opt b { width: 36px; height: 36px; border-radius: 10px; background: var(--card); border: 1px solid var(--cyan-d); color: var(--cyan); display: flex; align-items: center; justify-content: center; font-weight: 800; }
.start__opt h3 { font-size: 16px; margin-bottom: 4px; }
.start__opt p { color: var(--muted); font-size: 14px; }
.form { max-width: 560px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 480px) { .form .row { grid-template-columns: 1fr; } }
.field label { display: block; color: var(--dim); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 6px; }
.field label span { text-transform: none; letter-spacing: 0; }
.field input, .field select, .field textarea { width: 100%; background: var(--card); border: 1px solid rgba(255,255,255,.08); border-radius: 10px; padding: 12px 14px; color: var(--white); font: inherit; font-size: 15px; }
.field input::placeholder, .field textarea::placeholder { color: var(--dim); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cyan-d); }
.field textarea { resize: vertical; min-height: 92px; }
.form__error { display: none; color: #F87171; font-size: 14px; text-align: center; }
.form__error.is-visible { display: block; }
.form__done { text-align: center; padding: 32px 0; }
.form__done strong { display: block; color: var(--white); font-size: 20px; margin: 12px 0 6px; }
.form__done .tick { width: 48px; height: 48px; margin: 0 auto; color: var(--green); }
.form__fine { text-align: center; color: var(--dim); font-size: 12px; }
.honeypot { position: absolute; left: -9999px; }

/* footer */
.footer { border-top: 1px solid rgba(255,255,255,.05); background: rgba(12,26,46,.6); padding: 40px 0; }
.footer .container { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; }
.footer__links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.footer__links a { color: var(--muted); font-size: 14px; }
.footer__links a:hover { color: var(--cyan); }
.footer__legal { width: 100%; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-top: 12px; color: var(--dim); font-size: 12px; }

/* language dropdown */
.lang { position: relative; margin-left: 4px; }
.lang summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; padding: 7px 10px; border-radius: 8px; border: 1px solid rgba(255,255,255,.1); color: var(--soft); font-size: 13px; font-weight: 600; letter-spacing: .06em; }
.lang summary::-webkit-details-marker { display: none; }
.lang summary svg { width: 12px; height: 12px; transition: transform .15s; }
.lang[open] summary svg { transform: rotate(180deg); }
.lang__menu { position: absolute; right: 0; top: calc(100% + 8px); min-width: 150px; background: var(--card); border: 1px solid var(--line2); border-radius: 10px; padding: 6px; box-shadow: 0 20px 40px -20px rgba(0,0,0,.6); z-index: 60; }
.lang__menu a { display: block; padding: 9px 12px; border-radius: 6px; color: var(--soft); font-size: 14px; }
.lang__menu a:hover { background: var(--chip); color: var(--white); }
.lang__menu a[aria-current="true"] { color: var(--cyan); }
.lang__menu a[aria-current="true"]::after { content: ' ✓'; }
@media (max-width: 900px) { .lang { margin: 8px 0 0; } .lang__menu { position: static; margin-top: 6px; box-shadow: none; } }

/* Japanese typography */
html[lang="ja"] body { font-family: 'Inter', 'Noto Sans JP', ui-sans-serif, system-ui, -apple-system, sans-serif; line-height: 1.75; }
html[lang="ja"] .eyebrow, html[lang="ja"] .band h3, html[lang="ja"] .arch__zone h3, html[lang="ja"] .hex__title, html[lang="ja"] .stage strong, html[lang="ja"] .owner, html[lang="ja"] .price .unit, html[lang="ja"] .arch__clock strong, html[lang="ja"] .brand__tail, html[lang="ja"] .field label { letter-spacing: .08em; }
html[lang="ja"] .hero h1 { font-size: clamp(30px, 4.4vw, 52px); }
html[lang="ja"] .h2 { font-size: clamp(24px, 3vw, 34px); }
html[lang="ja"] .card p, html[lang="ja"] .tile p, html[lang="ja"] .panel p, html[lang="ja"] .input p, html[lang="ja"] .output p, html[lang="ja"] .stat strong, html[lang="ja"] .faq details p { overflow-wrap: anywhere; }
html[lang="ja"] .stat strong { font-size: 24px; }
html[lang="ja"] h1, html[lang="ja"] h2, html[lang="ja"] h3, html[lang="ja"] h4, html[lang="ja"] .stat strong { word-break: auto-phrase; }
html[lang="ja"] .hero h1, html[lang="ja"] .h2 { text-wrap: balance; }
html[lang="ja"] .nav__links a { font-size: 13px; padding: 8px 9px; }

/* reveal (JS-enhanced only) */
html.js [data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
html.js [data-reveal].is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .pulse-dot, .flow, .pulse { animation: none !important; }
  html.js [data-reveal] { opacity: 1; transform: none; transition: none; }
}
@media (max-width: 720px) { .section { padding: 72px 0; } .section__head { margin-bottom: 36px; } }