@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Source+Serif+4:wght@600;700&display=swap');

:root {
    --primary: #0B4F6C;
    --primary-dark: #07384d;
    --primary-soft: #e8f3f7;
    --secondary: #F4B942;
    --secondary-dark: #c58b0d;
    --ink: #10212b;
    --muted: #60737d;
    --line: #dbe6ea;
    --paper: #ffffff;
    --wash: #f6f9fa;
    --deep: #082c3d;
    --radius: 24px;
    --shadow: 0 24px 70px rgba(11, 79, 108, 0.14);
    --shadow-soft: 0 14px 40px rgba(16, 33, 43, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--ink);
    background: linear-gradient(180deg, #ffffff 0%, #f6f9fa 100%);
    line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--secondary); color: var(--ink); padding: 10px 14px; border-radius: 10px; z-index: 20; }
.skip-link:focus { left: 8px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255,255,255,.9);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(219,230,234,.8);
}
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: -0.04em; }
.brand-mark { background: var(--primary); color: var(--secondary); border-radius: 14px; padding: 9px 10px; line-height: 1; box-shadow: 0 10px 25px rgba(11,79,108,.2); }
.brand-text { color: var(--primary-dark); font-size: 1.1rem; }
.brand-text span { color: var(--muted); }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a { text-decoration: none; color: var(--muted); font-weight: 700; font-size: .94rem; padding: 10px 14px; border-radius: 999px; transition: .2s ease; }
.main-nav a:hover, .main-nav a.active { color: var(--primary); background: var(--primary-soft); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.nav-toggle span { display: block; height: 2px; width: 20px; margin: 5px auto; background: var(--primary); }

.hero { padding: 72px 0 44px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: -120px -120px auto auto; width: 420px; height: 420px; background: radial-gradient(circle, rgba(244,185,66,.35), transparent 65%); z-index: -1; }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; gap: 40px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); background: var(--primary-soft); border: 1px solid rgba(11,79,108,.12); padding: 8px 12px; border-radius: 999px; font-weight: 800; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -0.045em; margin: 0 0 16px; }
h1 { font-size: clamp(2.6rem, 7vw, 5.6rem); }
h2 { font-size: clamp(2rem, 4vw, 3.35rem); }
h3 { font-size: 1.35rem; }
.serif { font-family: 'Source Serif 4', Georgia, serif; }
.lead { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.25rem); max-width: 680px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 30px 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 20px; border-radius: 999px; font-weight: 800; text-decoration: none; border: 1px solid transparent; transition: .22s ease; cursor: pointer; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 14px 28px rgba(11,79,108,.22); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-secondary { background: #fff; color: var(--primary); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--primary); transform: translateY(-2px); }
.hero-proof { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 28px; }
.proof-card { background: #fff; border: 1px solid var(--line); padding: 18px; border-radius: 18px; box-shadow: var(--shadow-soft); }
.proof-card strong { display: block; color: var(--primary); font-size: 1.35rem; }
.hero-visual { position: relative; }
.hero-visual img { border-radius: 32px; width: 100%; min-height: 520px; object-fit: cover; box-shadow: var(--shadow); }
.visual-note { position: absolute; left: -22px; bottom: 28px; width: min(310px, 82%); background: rgba(255,255,255,.94); border: 1px solid var(--line); border-radius: 24px; padding: 18px; box-shadow: var(--shadow); }
.visual-note b { color: var(--primary); }

section { padding: 68px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-head p { max-width: 620px; color: var(--muted); margin: 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-soft); transition: .22s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card h2, .article-card h2 { font-size: 1.35rem; letter-spacing: -0.035em; }
.card-icon { width: 46px; height: 46px; border-radius: 16px; display: inline-flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary); margin-bottom: 14px; }
.card p, .article-card p, .guide-body p, .plain-page p { color: var(--muted); }
.card-link { color: var(--primary); font-weight: 800; text-decoration: none; }
.card-link:hover { text-decoration: underline; }

.panel { background: var(--deep); color: #fff; border-radius: 36px; padding: clamp(28px, 5vw, 58px); overflow: hidden; position: relative; }
.panel::after { content: ''; position: absolute; right: -90px; top: -90px; width: 260px; height: 260px; background: rgba(244,185,66,.24); border-radius: 50%; }
.panel p { color: #c7d8df; }
.matrix { display: grid; grid-template-columns: .8fr 1.2fr; gap: 26px; align-items: start; }
.matrix-list { display: grid; gap: 14px; }
.matrix-item { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); padding: 18px; border-radius: 18px; }
.matrix-item strong { color: var(--secondary); }

.calculator { background: #fff; border: 1px solid var(--line); border-radius: 30px; padding: 28px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
label { display: grid; gap: 6px; color: var(--ink); font-weight: 800; font-size: .92rem; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 13px 14px; font: inherit; background: #fff; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(244,185,66,.35); border-color: var(--primary); }
.result-box { margin-top: 18px; padding: 18px; border-radius: 18px; background: var(--primary-soft); border: 1px solid rgba(11,79,108,.12); }
.result-box strong { color: var(--primary); font-size: 1.6rem; display: block; }

.page-hero { padding: 64px 0 28px; background: linear-gradient(135deg, var(--primary-soft), #fff 70%); border-bottom: 1px solid var(--line); }
.page-hero .container { max-width: 960px; }
.breadcrumbs { font-size: .9rem; color: var(--muted); margin-bottom: 18px; }
.breadcrumbs a { color: var(--primary); text-decoration: none; font-weight: 800; }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 34px; align-items: start; }
.guide-body, .plain-page { background: #fff; border: 1px solid var(--line); border-radius: 30px; padding: clamp(24px, 4vw, 42px); box-shadow: var(--shadow-soft); }
.guide-body h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); margin-top: 34px; }
.guide-body h2:first-child { margin-top: 0; }
.plain-page h2, .sidebar-card h2 { font-size: 1.35rem; letter-spacing: -0.035em; }
.guide-body ul, .plain-page ul { color: var(--muted); padding-left: 20px; }
.guide-body li, .plain-page li { margin-bottom: 10px; }
.sidebar { position: sticky; top: 100px; display: grid; gap: 16px; }
.sidebar-card { background: #fff; border: 1px solid var(--line); border-radius: 24px; padding: 22px; box-shadow: var(--shadow-soft); }
.sidebar-card a { display: block; color: var(--primary); font-weight: 800; text-decoration: none; margin: 10px 0; }

.article-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.article-card { background: #fff; border: 1px solid var(--line); border-radius: 28px; overflow: hidden; box-shadow: var(--shadow-soft); transition: .22s ease; }
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.article-card img { width: 100%; height: 220px; object-fit: cover; }
.article-card-body { padding: 24px; }
.tag { display: inline-flex; border-radius: 999px; background: rgba(244,185,66,.22); color: #754f00; font-weight: 800; font-size: .78rem; padding: 6px 10px; margin-bottom: 12px; }

.contact-box { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.email-card { background: var(--primary); color: #fff; border-radius: 28px; padding: 30px; box-shadow: var(--shadow); }
.email-card h2 { color: #fff; }
.email-card a { color: var(--secondary); font-size: clamp(1.2rem, 3vw, 1.8rem); font-weight: 900; text-decoration: none; word-break: break-word; }

.cta-strip { background: linear-gradient(135deg, var(--primary), var(--deep)); color: #fff; border-radius: 34px; padding: 36px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.cta-strip p { color: #c7d8df; margin: 0; }

.site-footer { margin-top: 60px; background: var(--deep); color: #fff; padding: 54px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .9fr 1fr; gap: 30px; }
.site-footer p { color: #b9ccd4; }
.site-footer h2 { font-size: 1rem; letter-spacing: 0; margin-bottom: 12px; }
.site-footer a { display: block; color: #dceaf0; text-decoration: none; margin: 8px 0; }
.site-footer a:hover { color: var(--secondary); }
.footer-brand { margin-bottom: 16px; }
.footer-brand .brand-text { color: #fff; }
.footer-email { color: var(--secondary) !important; font-weight: 800; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); margin-top: 36px; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-bottom p { margin: 0; font-size: .92rem; }

.reveal-on-scroll { opacity: 1; transform: none; }
.js .reveal-on-scroll { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal-on-scroll.revealed { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
    .hero-grid, .matrix, .content-layout, .contact-box { grid-template-columns: 1fr; }
    .grid-3, .grid-2, .article-list { grid-template-columns: 1fr; }
    .hero-proof { grid-template-columns: 1fr; }
    .section-head { display: block; }
    .sidebar { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero-visual img { min-height: 360px; }
    .visual-note { position: static; width: auto; margin-top: -44px; margin-inline: 16px; }
}

@media (max-width: 720px) {
    .nav-toggle { display: block; }
    .main-nav { position: absolute; left: 16px; right: 16px; top: 76px; display: none; flex-direction: column; align-items: stretch; background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 12px; box-shadow: var(--shadow); }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 13px 14px; }
    .hero { padding-top: 44px; }
    .form-grid { grid-template-columns: 1fr; }
    .cta-strip { display: block; }
    .cta-strip .btn { margin-top: 18px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { display: block; }
}