/* Vitasoft Index — brandbook design system (dark navy + signal/violet + Inter) */
:root {
  --bg: #070a12;
  --bg2: #0b1020;
  --panel: #0e1424;
  --panel2: #111a2e;
  --line: rgba(255, 255, 255, 0.11);
  --ink: #f6f8ff;
  --muted: #aab4c8;
  --blue: #38d6ff;
  --violet: #8b5cff;
  --mint: #38f2b0;
  --grad: linear-gradient(135deg, #38d6ff, #8b5cff);
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 0%, rgba(56, 214, 255, 0.13), transparent 30%),
    radial-gradient(circle at 88% 0%, rgba(139, 92, 255, 0.16), transparent 32%),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.muted { color: var(--muted); }
h1, h2, h3 { letter-spacing: -0.035em; line-height: 1.05; margin: 0 0 14px; }
h1 { font-size: clamp(34px, 5vw, 60px); font-weight: 900; }
h2 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; }
h3 { font-size: 20px; font-weight: 700; }

/* header */
.site-head { position: sticky; top: 0; z-index: 20; background: rgba(7, 10, 18, 0.72); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.head-in { display: flex; align-items: center; gap: 20px; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: -0.04em; font-size: 19px; }
.brand small { color: var(--blue); font-weight: 700; font-size: 12px; margin-left: 4px; letter-spacing: 0.04em; text-transform: uppercase; }
.head-nav { display: flex; gap: 22px; margin-left: auto; color: var(--muted); font-size: 15px; font-weight: 500; }
.head-nav a:hover { color: var(--ink); }
.head-cta { padding: 9px 15px; border-radius: 12px; background: var(--grad); color: #fff; font-weight: 700; font-size: 14px; }
@media (max-width: 760px) { .head-nav { display: none; } }

/* hero */
.hero { padding: 70px 0 40px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 999px; padding: 7px 13px; color: #d8e7ff; background: rgba(255, 255, 255, 0.04); font-size: 13px; margin-bottom: 22px; }
.dot { width: 8px; height: 8px; border-radius: 999px; background: var(--mint); box-shadow: 0 0 18px var(--mint); }
.lead { font-size: 19px; color: #d4dceb; max-width: 720px; }
.btns { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.btn { padding: 13px 19px; border-radius: 14px; font-weight: 700; }
.btn-primary { background: var(--grad); color: #fff; }
.btn-ghost { border: 1px solid var(--line); color: #dde8ff; background: rgba(255, 255, 255, 0.04); }

/* section */
.section { padding: 48px 0; }
.grid { display: grid; gap: 16px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 820px) { .cards-3, .cards-2 { grid-template-columns: 1fr; } }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 22px; }
.card:hover { border-color: rgba(56, 214, 255, 0.4); }
.cat-card h3 { margin-bottom: 6px; }
.cat-vol { font-size: 13px; color: var(--blue); font-weight: 600; }

/* ranking table */
.rank-list { display: flex; flex-direction: column; gap: 14px; margin-top: 26px; }
.rank-row { display: grid; grid-template-columns: 54px 1fr 132px; gap: 18px; align-items: center; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; }
.rank-row.is-flagship { border-color: rgba(139, 92, 255, 0.55); background: linear-gradient(160deg, rgba(139, 92, 255, 0.10), var(--panel) 60%); box-shadow: 0 18px 50px rgba(139, 92, 255, 0.10); }
.rank-num { font-size: 30px; font-weight: 900; color: var(--muted); text-align: center; }
.is-flagship .rank-num { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.rank-main h3 { margin: 0 0 4px; display: flex; align-items: center; gap: 10px; }
.tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; padding: 3px 8px; border-radius: 999px; background: var(--grad); color: #fff; }
.rank-meta { font-size: 13px; color: var(--muted); margin: 0 0 6px; }
.rank-note { font-size: 14px; color: #c7d2e4; margin: 6px 0 0; }
.rank-score { text-align: center; }
.score-num { font-size: 34px; font-weight: 900; line-height: 1; }
.score-num span { font-size: 14px; color: var(--muted); }
.grade { display: inline-block; margin-top: 4px; font-size: 12px; font-weight: 700; color: var(--mint); border: 1px solid rgba(56, 242, 176, 0.4); border-radius: 999px; padding: 2px 9px; }
@media (max-width: 680px) { .rank-row { grid-template-columns: 40px 1fr; } .rank-score { grid-column: 2; text-align: left; display: flex; gap: 12px; align-items: baseline; } }

/* score bars */
.bars { margin-top: 12px; display: grid; gap: 7px; }
.bar-row { display: grid; grid-template-columns: 180px 1fr 38px; gap: 10px; align-items: center; font-size: 12px; color: var(--muted); }
.bar { height: 7px; background: rgba(255, 255, 255, 0.08); border-radius: 99px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--grad); border-radius: 99px; }
@media (max-width: 680px) { .bar-row { grid-template-columns: 120px 1fr 32px; } }

/* prose / faq */
.prose { max-width: 760px; }
.prose p { color: #c7d2e4; }
.faq { border-top: 1px solid var(--line); padding: 18px 0; }
.faq h3 { margin-bottom: 8px; font-size: 18px; }
.faq p { color: #c7d2e4; margin: 0; }

/* methodology dims */
.dim { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--line); }
.dim-w { font-weight: 900; font-size: 22px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.crumbs { font-size: 13px; color: var(--muted); padding: 22px 0 0; }
.crumbs a:hover { color: var(--ink); }
.updated { font-size: 13px; color: var(--muted); }

/* footer */
.site-foot { border-top: 1px solid var(--line); background: linear-gradient(180deg, rgba(139,92,255,0.04), rgba(7,10,18,0) 40%); margin-top: 64px; }
.foot-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 32px; padding: 60px 0 44px; align-items: start; }
.foot-brand { max-width: 340px; }
.foot-brand .brand { margin-bottom: 16px; }
.foot-brand p { margin: 0 0 20px; font-size: 14.5px; line-height: 1.6; color: var(--muted); }
.foot-btn { display: inline-flex; align-items: center; padding: 10px 16px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255,255,255,0.04); color: #dde8ff; font-weight: 600; font-size: 14px; }
.foot-btn:hover { border-color: rgba(56,214,255,0.45); color: #fff; }
.foot-col { display: flex; flex-direction: column; gap: 12px; }
.foot-col h4 { margin: 0 0 4px; font-size: 11.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #7e8aa3; }
.foot-col a { color: #c7d2e4; font-size: 14.5px; width: fit-content; }
.foot-col a:hover { color: var(--blue); }
.foot-legal { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding: 20px 0 44px; border-top: 1px solid var(--line); font-size: 13px; }
.foot-legal a { color: inherit; }
.foot-legal a:hover { color: var(--ink); }
.foot-method:hover { color: var(--blue) !important; }
@media (max-width: 860px) {
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px 24px; padding: 44px 0 32px; }
  .foot-brand { grid-column: 1 / -1; max-width: none; }
}
@media (max-width: 480px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-brand { grid-column: 1 / -1; } }

/* language switch */
.head-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.head-nav { margin-left: auto; }
.head-right .head-nav { margin-left: 0; }
.lang-switch { border: 1px solid var(--line); border-radius: 9px; padding: 7px 11px; font-size: 13px; font-weight: 700; color: var(--muted); letter-spacing: 0.04em; }
.lang-switch:hover { color: var(--ink); border-color: rgba(56,214,255,0.45); }
@media (max-width: 760px) { .head-right { margin-left: auto; } }

/* guide byline + cocoon */
.byline { font-size: 13.5px; color: var(--muted); margin-top: 16px; }
.byline a { color: var(--blue); }
.prose h2 { margin-top: 30px; }
.guide-cta { margin-top: 28px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 14px; background: rgba(56,214,255,0.05); }
.guide-cta a { color: var(--blue); font-weight: 600; }
.reviewer-tag { display:inline-flex; align-items:center; gap:8px; font-size:13.5px; color:var(--muted); margin-top:14px; }
.reviewer-tag .ini { width:26px; height:26px; border-radius:50%; background:var(--grad); color:#fff; font-size:11px; font-weight:800; display:grid; place-items:center; }
.reviewer-tag a { color: var(--blue); }

/* expert profile */
.expert-head { display: flex; gap: 20px; align-items: center; }
.ini-lg { width: 76px; height: 76px; border-radius: 50%; background: var(--grad); color: #fff; font-size: 26px; font-weight: 800; display: grid; place-items: center; flex: none; }
@media (max-width: 560px) { .expert-head { flex-direction: column; align-items: flex-start; } }

/* cost calculator */
.calc-panel { background: var(--panel); border: 1px solid var(--line); border-radius: 24px; padding: 26px; }
.calc-grid { display: grid; grid-template-columns: 1.35fr 0.9fr; gap: 26px; align-items: stretch; }
@media (max-width: 860px) { .calc-grid { grid-template-columns: 1fr; } }
.calc-controls { display: flex; flex-direction: column; gap: 24px; }
.calc-group h4 { margin: 0 0 11px; font-size: 11.5px; letter-spacing: 0.09em; text-transform: uppercase; color: #7e8aa3; }
.calc-seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.calc-segbtn { text-align: left; cursor: pointer; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg2); color: var(--ink); display: flex; flex-direction: column; gap: 3px; font-family: inherit; transition: border-color .15s, background .15s; }
.calc-segbtn b { font-size: 14.5px; }
.calc-segbtn small { color: var(--muted); font-size: 11.5px; line-height: 1.3; }
.calc-segbtn:hover { border-color: rgba(56,214,255,0.4); }
.calc-segbtn.on { border-color: var(--violet); background: linear-gradient(160deg, rgba(139,92,255,0.16), var(--bg2) 75%); box-shadow: 0 8px 24px rgba(139,92,255,0.12); }
@media (max-width: 560px) { .calc-seg { grid-template-columns: 1fr; } }
.calc-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
@media (max-width: 560px) { .calc-feats { grid-template-columns: 1fr; } }
.calc-opt { display: flex; gap: 11px; align-items: center; padding: 12px 13px; border: 1px solid var(--line); border-radius: 12px; cursor: pointer; background: var(--bg2); font-size: 14px; }
.calc-opt:hover { border-color: rgba(56,214,255,0.4); }
.calc-opt input { accent-color: #8b5cff; width: 16px; height: 16px; flex: none; }
.calc-opt:has(input:checked) { border-color: var(--violet); background: linear-gradient(160deg, rgba(139,92,255,0.12), var(--bg2) 75%); }
.calc-select { width: 100%; padding: 13px 14px; border-radius: 13px; border: 1px solid var(--line); background: var(--bg2); color: var(--ink); font-size: 15px; font-family: inherit; }
.calc-result { display: flex; flex-direction: column; background: linear-gradient(165deg, rgba(56,214,255,0.10), rgba(139,92,255,0.08)); border: 1px solid rgba(56,214,255,0.32); border-radius: 18px; padding: 24px; }
.calc-label { font-size: 11.5px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.calc-range { font-size: clamp(24px, 2.4vw, 31px); font-weight: 900; letter-spacing: -0.03em; margin: 6px 0 8px; white-space: nowrap; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.calc-meta { font-size: 14px; color: #c7d2e4; }
.calc-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.calc-chips span { font-size: 12px; color: #c7d2e4; border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; background: rgba(255,255,255,0.03); }
.calc-cta { display: block; text-align: center; padding: 13px; border-radius: 12px; background: var(--grad); color: #fff; font-weight: 700; font-size: 14px; margin-top: 20px; }
.calc-note { font-size: 12px; color: var(--muted); margin: 12px 0 0; }

/* lead form */
.lead-box { background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 28px; }
.lead-form { margin-top: 16px; display: flex; flex-direction: column; gap: 12px; max-width: 620px; }
.lead-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .lead-row { grid-template-columns: 1fr; } }
.lead-form input, .lead-form textarea { padding: 13px 15px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg2); color: var(--ink); font-size: 15px; font-family: inherit; }
.lead-form button { padding: 14px; border-radius: 12px; border: none; background: var(--grad); color: #fff; font-weight: 800; font-size: 15px; cursor: pointer; }
.lead-form button:disabled { opacity: 0.6; }
.lead-fine { font-size: 12px; margin: 2px 0 0; }
.lead-ok { padding: 8px 0; } .lead-ok p { color: #c7d2e4; }

/* company profile — index score cards (rating-playbook §2/§3) */
.score-card { display: flex; flex-direction: column; gap: 12px; }
.score-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.score-head h3 { margin: 0; font-size: 17px; }
.score-head a { color: var(--ink); text-decoration: none; }
.score-head a:hover h3 { color: var(--blue); }
.score-badge { display: flex; align-items: baseline; gap: 5px; white-space: nowrap; }
.score-badge strong { font-size: 26px; font-weight: 900; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.score-badge span { font-size: 12px; color: var(--muted); font-weight: 700; }
.pillars { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.pillars li { display: grid; grid-template-columns: 1fr 84px 26px; align-items: center; gap: 10px; }
.p-label { font-size: 12.5px; color: #c7d2e4; }
.p-bar { height: 7px; border-radius: 99px; background: var(--bg2); overflow: hidden; }
.p-fill { display: block; height: 100%; border-radius: 99px; background: var(--grad); }
.p-num { font-size: 12.5px; color: var(--muted); font-weight: 700; text-align: right; }
.score-link { font-size: 13.5px; font-weight: 700; color: var(--blue); text-decoration: none; }
.score-link:hover { text-decoration: underline; }
@media (max-width: 520px) { .pillars li { grid-template-columns: 1fr 56px 24px; } .p-label { font-size: 12px; } }
.rank-pill { display: inline-block; font-size: 12px; font-weight: 800; color: var(--muted); background: var(--bg2); border-radius: 6px; padding: 1px 7px; margin-right: 4px; vertical-align: middle; }
.score-note { font-size: 13.5px; line-height: 1.55; color: #c7d2e4; margin: -2px 0 4px; }