/* KachiIQ marketing site. Brand: navy ink, kintsugi gold, ivory washi, hanko red for the seal only. */
:root {
  --navy: #14233f; --navy-2: #1d3156; --navy-3: #2a4170; --night: #0f1c33;
  --gold: #b8860b; --gold-hi: #e2bf5a; --gold-soft: #f3ead2;
  --seal: #b7372a; --paper: #f6f4ee; --card: #fff;
  --ink: #1b1f27; --muted: #5d6573; --line: #dfe2da; --ok: #2c7a4b;
  --serif: "Source Serif 4", Georgia, serif; --sans: Raleway, system-ui, -apple-system, "Segoe UI", sans-serif;
  --r: 14px; --wrap: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; color: var(--navy); margin: 0 0 14px; letter-spacing: -0.005em; }
h1 { font-size: clamp(36px, 5.2vw, 60px); line-height: 1.05; }
h2 { font-size: clamp(28px, 3.6vw, 42px); line-height: 1.12; }
h3 { font-size: 20px; line-height: 1.25; }
p { margin: 0 0 14px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.small { font-size: 14px; color: var(--muted); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 99; background: #fff; padding: 8px 12px; }
:focus-visible { outline: 2px solid var(--gold-hi); outline-offset: 3px; }
.kicker { font: 700 13px/1 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); margin-bottom: 14px; }
.kicker.light { color: var(--gold-hi); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 700 15px/1 var(--sans); padding: 12px 20px; border-radius: 999px; text-decoration: none; border: 1.5px solid transparent; cursor: pointer; transition: transform .15s, background .15s, box-shadow .15s; white-space: nowrap; }
.btn.lg { padding: 16px 28px; font-size: 16px; }
.btn.gold { background: var(--gold); color: #fff; box-shadow: 0 6px 18px -8px rgba(184, 134, 11, .7); }
.btn.gold:hover { background: #a47709; transform: translateY(-1px); }
.btn.ghost-light { color: #fff; border-color: rgba(255,255,255,.55); }
.btn.ghost-light:hover { background: rgba(255,255,255,.1); }
.btn.outline { color: var(--navy); border-color: var(--navy); background: transparent; }
.btn.outline:hover { background: var(--navy); color: #fff; }
.link { font-weight: 700; color: var(--gold); text-decoration: none; }
.link:hover { text-decoration: underline; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.nav-row { display: flex; align-items: center; gap: 28px; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.seal { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 6px; background: var(--seal); color: #fbf3ee; font: 700 11px/1.05 "Noto Serif JP", serif; text-align: center; box-shadow: inset 0 0 0 2px var(--seal), inset 0 0 0 3px #fbf3ee; }
.word { font: 600 23px/1 var(--serif); color: var(--navy); letter-spacing: -0.01em; }
.word b { color: var(--gold); font-weight: 600; }
.menu { display: flex; align-items: center; gap: 4px; flex: 1; }
.menu > a, .dd-btn { font: 600 15px/1 var(--sans); color: var(--navy); text-decoration: none; padding: 10px 12px; border-radius: 8px; background: none; border: 0; cursor: pointer; }
.menu > a:hover, .dd-btn:hover, .dd.open .dd-btn { background: var(--gold-soft); }
.dd { position: relative; }
.dd-btn::after { content: ""; display: inline-block; width: 6px; height: 6px; margin-left: 8px; border: solid currentColor; border-width: 0 1.5px 1.5px 0; transform: translateY(-3px) rotate(45deg); }
.dd-panel { position: absolute; top: calc(100% + 8px); left: 0; width: 360px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); box-shadow: 0 24px 50px -20px rgba(20,35,63,.35); padding: 10px; display: none; }
.dd.open .dd-panel { display: block; }
.dd-panel a { display: block; padding: 12px 14px; border-radius: 10px; text-decoration: none; }
.dd-panel a:hover { background: var(--paper); }
.dd-panel b { display: block; color: var(--navy); font-size: 15px; }
.dd-panel span { display: block; color: var(--muted); font-size: 13.5px; line-height: 1.4; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.signin { font-weight: 700; color: var(--navy); text-decoration: none; padding: 8px 6px; }
.signin:hover { color: var(--gold); }
.burger { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: 10px 9px; cursor: pointer; }
.burger span { display: block; height: 2px; background: var(--navy); margin: 4px 0; border-radius: 2px; }

/* Hero */
.hero { position: relative; overflow: hidden; background: var(--night); color: #e9edf5; padding: 88px 0 96px; }
.hero-art { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,28,51,.55) 0%, rgba(15,28,51,.2) 45%, rgba(15,28,51,.85) 100%), url(/art/ink-night.webp) center 65% / cover no-repeat; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--gold-hi); margin-bottom: 22px; }
.kanji { font: 700 18px/1 "Noto Serif JP", serif; color: var(--gold-hi); }
.lede { font-size: 19px; line-height: 1.6; color: #d3dae7; max-width: 560px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 18px; }
.hero-note { font-size: 14px; color: #a9b4c7; }
.shot { background: #fff; color: var(--ink); border-radius: 16px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.65), 0 0 0 1px rgba(255,255,255,.08); overflow: hidden; transform: perspective(1400px) rotateY(-5deg) rotateX(2deg); }
.shot-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; background: #f1f2ef; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.shot-bar i { width: 10px; height: 10px; border-radius: 50%; background: #d5d8d1; }
.shot-bar span { margin-left: 10px; font-weight: 600; }
.shot-body { padding: 22px; }
.shot-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.kpi { background: var(--paper); border-radius: 12px; padding: 16px; border-top: 3px solid var(--gold); }
.kpi span, .mini span { display: block; font-size: 12.5px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.kpi b { display: block; font: 600 34px/1.1 var(--serif); color: var(--navy); margin: 6px 0 2px; }
.kpi em, .mini em { font-style: normal; font-size: 13px; color: var(--muted); }
.bars { margin: 20px 0; display: grid; gap: 10px; }
.bars div { display: grid; grid-template-columns: 150px 1fr; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); }
.bars i { display: block; height: 10px; border-radius: 6px; background: linear-gradient(90deg, var(--navy-3), var(--navy)); width: var(--w); }
.shot-row.two { grid-template-columns: 1fr 1fr; }
.mini { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.mini b { display: block; font: 600 26px/1.1 var(--serif); color: var(--navy); margin: 6px 0 2px; }
.mini small { font-size: 14px; color: var(--muted); }
.mini em.up { color: var(--ok); font-weight: 600; }
.shot-caption { text-align: right; font-size: 12px; color: #8592a8; margin-top: 12px; }

/* Strip */
.strip { background: #fff; border-bottom: 1px solid var(--line); }
.strip-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding-top: 28px; padding-bottom: 28px; }
.strip b { display: block; color: var(--navy); font-size: 15px; }
.strip span { display: block; color: var(--muted); font-size: 14px; line-height: 1.45; }
.strip-row > div { padding-left: 16px; border-left: 2px solid var(--gold); }

/* Platform */
.platform { padding: 104px 0; }
.platform h2 { max-width: 760px; }
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 36px 0 28px; border-bottom: 1px solid var(--line); }
.tabs button { font: 700 15px/1 var(--sans); color: var(--muted); background: none; border: 0; padding: 14px 16px; cursor: pointer; border-bottom: 3px solid transparent; margin-bottom: -1px; }
.tabs button[aria-selected="true"] { color: var(--navy); border-bottom-color: var(--gold); }
.tabs button:hover { color: var(--navy); }
.panel { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: center; animation: rise .35s ease; }
.panel[hidden] { display: none; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.panel-copy p { font-size: 17px; color: #3c4350; }
.ticks { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.ticks li { position: relative; padding-left: 30px; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--gold-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%23b8860b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat; }
.panel-card { position: relative; background: var(--navy); color: #dfe5f0; border-radius: 20px; padding: 34px; min-height: 300px; overflow: hidden; box-shadow: 0 30px 60px -30px rgba(20,35,63,.6); }
.panel-card::after { content: ""; position: absolute; inset: auto -10% -30% -10%; height: 70%; background: url(/art/ink-strip.webp) center/cover; opacity: .18; mix-blend-mode: screen; }
.panel-card img { width: 44px; height: 44px; filter: invert(1) sepia(1) saturate(4) hue-rotate(5deg) brightness(1.1); margin-bottom: 18px; }
.panel-card b { display: block; font: 600 26px/1.2 var(--serif); color: #fff; }
.panel-card p { color: #aab6ca; margin: 6px 0 26px; }
.meter { height: 8px; border-radius: 6px; background: rgba(255,255,255,.12); overflow: hidden; }
.meter i { display: block; height: 100%; width: var(--w); background: linear-gradient(90deg, var(--gold), var(--gold-hi)); }
.panel-card small { display: block; margin-top: 12px; color: #aab6ca; }

/* Solutions */
.solutions { padding: 0 0 104px; }
.sol-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.sol { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 44px; }
.sol p { color: #3c4350; font-size: 17px; }
.sol.dark { background: var(--navy); border-color: var(--navy); }
.sol.dark h2 { color: #fff; }
.sol.dark p { color: #c9d2e1; }
.sol.dark .kicker, .sol.dark .link { color: var(--gold-hi); }

/* How */
.how { background: #fff; padding: 104px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { list-style: none; padding: 0; margin: 44px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; counter-reset: s; }
.steps li { position: relative; padding-top: 22px; border-top: 2px solid var(--line); }
.steps li::before { content: ""; position: absolute; top: -2px; left: 0; width: 48px; height: 2px; background: var(--gold); }
.steps .n { font: 600 15px/1 var(--serif); color: var(--gold); display: block; margin-bottom: 10px; }
.steps p { color: var(--muted); font-size: 15.5px; }

/* Security */
.security { position: relative; overflow: hidden; background: var(--night); color: #dfe5f0; padding: 104px 0; }
.sec-art { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(15,28,51,.96) 35%, rgba(15,28,51,.7)), url(/art/ink-night.webp) center/cover; }
.sec-grid { position: relative; display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.security h2 { color: #fff; }
.security .lede { color: #c2ccdc; }
.sec-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.sec-list li { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 16px; padding: 22px; }
.sec-list b { display: block; color: #fff; margin-bottom: 6px; }
.sec-list span { color: #aab6ca; font-size: 15px; }

/* Pricing */
.pricing { padding: 104px 0; text-align: center; }
.pricing .sub { color: var(--muted); font-size: 18px; }
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 44px; text-align: left; align-items: stretch; }
.plan { position: relative; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 34px; }
.plan.featured { border: 2px solid var(--gold); box-shadow: 0 30px 60px -36px rgba(184,134,11,.55); }
.badge { position: absolute; top: -13px; left: 34px; background: var(--gold); color: #fff; font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; }
.plan .for { color: var(--muted); margin-top: -6px; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 28px; display: grid; gap: 10px; flex: 1; }
.plan li { padding-left: 26px; position: relative; font-size: 15.5px; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: var(--gold); font-weight: 700; }
.plan .btn { width: 100%; }

/* Request */
.request { background: linear-gradient(180deg, var(--paper), #efe9da); padding: 104px 0; border-top: 1px solid var(--line); }
.req-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }
.req-copy p { font-size: 17px; color: #3c4350; }
.req-form { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 32px; box-shadow: 0 30px 60px -40px rgba(20,35,63,.35); display: grid; gap: 16px; }
.req-form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.req-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: var(--navy); }
.req-form .opt { font-weight: 400; color: var(--muted); }
.req-form input, .req-form select, .req-form textarea { font: 15.5px/1.4 var(--sans); padding: 12px 14px; border: 1px solid #cfd4cb; border-radius: 10px; background: #fff; color: var(--ink); width: 100%; }
.req-form input:focus, .req-form select:focus, .req-form textarea:focus { border-color: var(--gold); outline: 2px solid var(--gold-soft); }
.req-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; }
.req-form .btn { justify-self: start; }
.form-msg { margin: 0; font-size: 15px; }
.form-msg.ok { color: var(--ok); font-weight: 600; }
.form-msg.err { color: #b3261e; }

/* Footer */
.foot { background: var(--navy); color: #b9c3d4; padding: 64px 0 28px; }
.foot .word { color: #fff; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.foot-grid b { display: block; color: #fff; margin-bottom: 12px; }
.foot-grid a { display: block; text-decoration: none; padding: 4px 0; color: #b9c3d4; }
.foot-grid a:hover { color: var(--gold-hi); }
.foot-grid a.brand { display: inline-flex; padding: 0; }
.foot .small { color: #8e9ab0; margin-top: 12px; }
.foot-base { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13.5px; color: #8e9ab0; }

/* Responsive */
@media (max-width: 1000px) {
  .menu { position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch; background: #fff; padding: 12px 16px 20px; border-bottom: 1px solid var(--line); box-shadow: 0 20px 40px -20px rgba(20,35,63,.3); display: none; max-height: calc(100vh - 72px); overflow: auto; }
  .nav.open .menu { display: flex; }
  .dd-panel { position: static; width: auto; box-shadow: none; border: 0; padding: 0 0 0 8px; }
  .burger { display: block; }
  .nav-cta .btn { display: none; }
  .hero-grid, .panel, .sec-grid, .req-grid, .sol-grid { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 72px; }
  .shot { transform: none; }
  .strip-row { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .plans { grid-template-columns: 1fr; max-width: 520px; margin-left: auto; margin-right: auto; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .platform, .how, .security, .pricing, .request { padding: 72px 0; }
  .solutions { padding-bottom: 72px; }
  .sol, .plan, .req-form { padding: 24px; }
  .strip-row, .steps, .sec-list, .req-form .two, .foot-grid { grid-template-columns: 1fr; }
  .bars div { grid-template-columns: 1fr; gap: 4px; }
  .shot-row { grid-template-columns: 1fr; }
  .tabs { flex-wrap: nowrap; overflow-x: auto; }
  .tabs button { white-space: nowrap; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }