/* Aerea Medical – VitalMatch */

:root {
    --navy: #12233B;
    --navy-2: #1B3150;
    --sand: #F5F3EE;
    --paper: #FFFDF9;
    --line: #DDD8CE;
    --ink: #12233B;
    --ink-soft: #3E4C5E;
    --ink-muted: #5F6B7A;
    --amber: #E39A4F;
    --amber-text: #A4520E;
    --amber-light: #F0A35C;
    --slate: #5D7391;
    --bar-muted: #C9C4BA;
    --serif: 'Source Serif 4', Georgia, serif;
    --sans: 'IBM Plex Sans', Arial, sans-serif;
    --radius: 14px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--sand);
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--amber-text); }

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

.skip-link {
    position: absolute; left: -999px; top: 8px;
    background: var(--navy); color: var(--sand); padding: 8px 14px; border-radius: 6px; z-index: 2000;
}
.skip-link:focus { left: 16px; }

/* ===== Header ===== */
.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(245, 243, 238, 0.94);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 2px 12px rgba(18, 35, 59, 0.06); }

.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand img { width: 52px; height: 50px; object-fit: contain; }
.brand-text { font-family: var(--serif); font-size: 22px; font-weight: 600; letter-spacing: 0.3px; }

.nav-links { list-style: none; display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--ink-soft); text-decoration: none; font-weight: 500; font-size: 15px; }
.nav-links a:hover { color: var(--ink); }
.nav-links .nav-cta {
    color: var(--sand); background: var(--navy); padding: 9px 18px; border-radius: 999px;
}
.nav-links .nav-cta:hover { color: var(--sand); background: var(--navy-2); }

.nav-toggle {
    display: none; background: none; border: 1px solid var(--line); border-radius: 8px;
    padding: 8px 14px; font: inherit; font-weight: 500; color: var(--ink); cursor: pointer;
}

/* ===== Type ===== */
h1, h2, h3 { font-family: var(--serif); color: var(--ink); line-height: 1.15; }
h1 { font-size: clamp(36px, 5vw, 58px); font-weight: 600; letter-spacing: -0.5px; }
h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 600; max-width: 820px; margin-bottom: 36px; }
h3 { font-size: 22px; font-weight: 600; margin-bottom: 10px; }

.eyebrow {
    font-size: 13px; font-weight: 600; letter-spacing: 2.5px; text-transform: uppercase;
    color: var(--amber-text); margin-bottom: 14px;
}

/* ===== Buttons ===== */
.button {
    display: inline-block; padding: 13px 24px; border-radius: 999px; font-weight: 600;
    text-decoration: none; transition: transform 0.15s, background 0.15s;
}
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--amber); color: var(--navy); }
.button-primary:hover { background: var(--amber-light); }
.button-ghost { border: 1.5px solid var(--navy); color: var(--navy); }
.button-ghost:hover { background: var(--navy); color: var(--sand); }

/* ===== Hero ===== */
.hero { padding: 72px 0 88px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.lede { font-size: 19px; color: var(--ink-soft); margin: 24px 0 32px; max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-figure img {
    border-radius: var(--radius); border: 1px solid var(--line);
    box-shadow: 0 18px 48px rgba(18, 35, 59, 0.14);
}
.hero-figure figcaption { font-size: 14px; color: var(--ink-muted); margin-top: 12px; }

/* ===== Sections ===== */
.section { padding: 88px 0; }
.section-alt { background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-dark { background: var(--navy); color: #C9D4E2; }
.section-dark h2, .section-dark h3 { color: var(--sand); }
.section-dark .eyebrow { color: var(--amber-light); }

/* Problem */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.stat { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.stat p { color: var(--ink-soft); }
.stat-number { font-family: var(--serif); font-size: 52px; font-weight: 600; line-height: 1; color: var(--ink) !important; margin-bottom: 14px; }
.stat-number.accent { color: var(--amber-text) !important; }
.callout {
    margin-top: 36px; padding: 24px 28px; border-left: 4px solid var(--amber);
    background: var(--paper); border-radius: 0 var(--radius) var(--radius) 0; color: var(--ink-soft); max-width: 900px;
}

/* Platform */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { background: var(--sand); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.card p { color: var(--ink-soft); }
.card-step { font-family: var(--serif); font-size: 30px; color: var(--amber-text) !important; margin-bottom: 8px; }
.fact-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.fact-row div { border-top: 3px solid var(--navy); padding-top: 18px; }
.fact-row strong { display: block; font-family: var(--serif); font-size: 40px; line-height: 1.1; }
.fact-row span { color: var(--ink-soft); }

/* Evidence */
.evidence-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.evidence-grid p { color: var(--ink-soft); margin-bottom: 16px; }
.chart { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.bar-row { display: grid; grid-template-columns: 190px 1fr 56px; align-items: center; gap: 14px; margin-bottom: 16px; font-size: 15px; }
.bar-label { color: var(--ink-soft); }
.bar { height: 28px; background: #EEEAE2; border-radius: 0 6px 6px 0; overflow: hidden; }
.bar-fill { display: block; height: 100%; background: var(--navy); border-radius: 0 6px 6px 0; }
.bar-fill.muted { background: var(--bar-muted); }
.bar-fill.mid { background: var(--slate); }
.bar-value { font-weight: 600; font-variant-numeric: tabular-nums; }
.bar-row.strong .bar-label { color: var(--ink); font-weight: 600; }
.chart figcaption { font-size: 13px; color: var(--ink-muted); margin-top: 8px; }

/* Roadmap */
.timeline { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.timeline li { border-top: 4px solid var(--slate); padding: 24px 24px 0 0; }
.timeline li:last-child { border-top-color: var(--amber); }
.when { font-weight: 600; letter-spacing: 2px; color: var(--amber-light); margin-bottom: 8px; }
.timeline p { color: #C9D4E2; }
.note { margin-top: 44px; font-size: 15px; color: #9FB0C4; max-width: 820px; }

/* Team */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.person { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; text-align: center; }
.person img, .avatar {
    width: 140px; height: 140px; border-radius: 50%; object-fit: cover; margin: 0 auto 20px;
    border: 4px solid var(--sand);
}
.avatar {
    display: flex; align-items: center; justify-content: center; background: var(--navy);
    color: var(--sand); font-family: var(--serif); font-size: 44px;
}
.role { font-size: 13px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: var(--amber-text); margin-bottom: 14px; }
.person p { color: var(--ink-soft); font-size: 15px; }
.person-link { display: inline-block; margin-top: 16px; font-weight: 600; font-size: 15px; }
.collab { margin-top: 32px; color: var(--ink-soft); max-width: 860px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: end; }
.contact p { color: var(--ink-soft); margin-bottom: 24px; max-width: 600px; }
.contact h2 { margin-bottom: 20px; }
address { font-style: normal; color: var(--ink-soft); line-height: 1.8; }
address strong { color: var(--ink); }

/* Footer */
.site-footer { background: var(--navy); color: #9FB0C4; padding: 28px 0; font-size: 14px; text-align: center; }
.site-footer a { color: var(--amber-light); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .hero-grid, .evidence-grid, .contact-grid { grid-template-columns: 1fr; }
    .stat-grid, .card-grid, .fact-row, .team-grid { grid-template-columns: 1fr; }
    .timeline { grid-template-columns: 1fr 1fr; row-gap: 32px; }
}

@media (max-width: 760px) {
    body { font-size: 16px; }
    .container { padding: 0 16px; }
    .nav-toggle { display: inline-block; }
    .nav-links {
        display: none; position: absolute; top: 72px; left: 0; right: 0;
        flex-direction: column; align-items: flex-start; gap: 0;
        background: var(--sand); border-bottom: 1px solid var(--line); padding: 8px 16px 16px;
    }
    .nav-links.open { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 12px 0; }
    .nav-links .nav-cta { display: inline-block; margin-top: 8px; padding: 9px 18px; }
    .hero { padding: 40px 0 56px; }
    .section { padding: 56px 0; }
    .timeline { grid-template-columns: 1fr; }
    .bar-row { grid-template-columns: 1fr 48px; }
    .bar-label { grid-column: 1 / -1; }
    .stat-number { font-size: 44px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .button { transition: none; }
}