/*
 * Sigma AI School LP v13 tone layer
 * Source: SigmaAISchool_LP_v13_トンマナガイド.md / 20260911_SigmaAISchool_LP_v13.html
 * Visual styling only. Page copy and behavior remain in each HTML file.
 */
:root {
  --ink: #0F2D46;
  --ink-2: #46617A;
  --ink-3: #71869A;
  --paper: #FFFFFF;
  --paper-2: #F5F8FC;
  --light: #E5EBF2;
  --line: #D9E3ED;
  --navy: #0F2D46;
  --navy-2: #163D5C;
  --on-navy: #F7FAFD;
  --on-navy-2: #C6D6E5;
  --accent: #2563FF;
  --accent-lit: #8CB1FF;
  --cta: #2563FF;
}

body { background: var(--paper); letter-spacing: .03em; }
.cream { background: linear-gradient(145deg, #F8FAFD 0%, var(--paper-2) 55%, #EEF4FA 100%); }
.dark { background: linear-gradient(145deg, var(--navy) 0%, #123955 100%); }
.section { border-top: 1px solid rgba(217, 227, 237, .72); }
h1, h2, h3, h4 { letter-spacing: .015em; }
.mark .jp { color: var(--accent); letter-spacing: .22em; }
.mark .en { font-size: 72px; line-height: 80px; font-weight: 600; letter-spacing: .06em; color: rgba(15, 45, 70, .16); }
.dark .mark .jp { color: var(--accent-lit); }
.dark .mark .en { color: rgba(229, 235, 242, .20); }

[stroke="#C8A24B"], [stroke="#E3C87C"] { stroke: var(--accent) !important; }
[fill="#C8A24B"], [fill="#E3C87C"] { fill: var(--accent) !important; }

.nav {
  margin-top: 16px;
  padding: 8px 8px 8px 24px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .92);
  border-color: rgba(217, 227, 237, .95);
  box-shadow: 0 8px 32px rgba(15, 45, 70, .06);
}
.nav.stuck { background: rgba(255, 255, 255, .98); box-shadow: 0 12px 40px rgba(15, 45, 70, .12); }
.nav a.l[aria-current="true"] { color: var(--navy); border-bottom-color: var(--accent); }
.nav .go { border-radius: 10px; background: var(--accent); }
.nav .go:hover { background: #174FD6; }
.brand b { letter-spacing: .06em; }

.hero { min-height: 94vh; background: linear-gradient(135deg, #FFFFFF 0%, #F5F8FC 58%, var(--light) 100%); }
.hero-bg img { opacity: .50; filter: saturate(.50) contrast(.92); object-position: 62% center; }
.hero-veil { background: linear-gradient(100deg, rgba(255, 255, 255, .97) 0%, rgba(255, 255, 255, .88) 44%, rgba(245, 248, 252, .56) 72%, rgba(229, 235, 242, .32) 100%); }
.hero h1 { color: var(--navy); }
.hero h1 em { color: var(--accent); }
.hero .lead { color: var(--ink-2); }
.hero .eyebrow { color: var(--accent); letter-spacing: .22em; }
.hero strong { color: var(--navy); }
.hero-course { border-left-color: var(--accent); background: rgba(255, 255, 255, .84); color: var(--navy); box-shadow: 0 16px 48px rgba(15, 45, 70, .08); }
.hero-course-time strong { color: var(--accent); }
.hero .hint { color: var(--ink-3); }
.hero .hint a { color: var(--ink-2); }

.btn { border-radius: 12px; background: var(--accent); border-color: var(--accent); box-shadow: 0 12px 32px rgba(37, 99, 255, .16); }
.btn:hover { background: #174FD6; border-color: #174FD6; box-shadow: 0 16px 36px rgba(37, 99, 255, .24); }
.card, .box, .plan, .verb, .pic, .whybox, .pre { border-radius: 16px; }
.card, .box, .plan, .verb { box-shadow: 0 8px 28px rgba(15, 45, 70, .035); }
.card:hover { box-shadow: 0 16px 40px rgba(15, 45, 70, .08); }
.card .no, .cred, .plan.base .lab, .opt .bno, .olab { background: var(--navy); }
.faq mark { background: #E7EFFF; }
.goalbox { background: rgba(37, 99, 255, .07); }
.agent-stage.is-ai { border-color: var(--navy); background: linear-gradient(145deg, var(--navy), #174869); }
.loop li:hover .ls-ic { box-shadow: 0 12px 28px rgba(15, 45, 70, .10); }
.limit { border-radius: 16px; background: linear-gradient(145deg, var(--navy), #174869); }

.vs { background: rgba(229, 235, 242, .18); border-color: rgba(229, 235, 242, .18); border-radius: 16px; }
.vs > div { background: var(--navy); }
.vs .vs-h.new, .vs-cap, .gains strong, .four strong, .bridge strong { color: var(--accent-lit); }
.vs .vs-c.new { background: rgba(37, 99, 255, .12); }
.gains li, .four li { border-color: rgba(229, 235, 242, .18); border-radius: 16px; background: rgba(255, 255, 255, .045); }
.gains .gn, .four .fn { border-radius: 50%; background: rgba(37, 99, 255, .20); color: var(--accent-lit); }
.exbox { border-left-color: var(--accent-lit); background: #163D5C; }

.cta { background: linear-gradient(135deg, var(--navy) 0%, #123955 68%, #174869 100%); }
.cta-veil {
  background:
    radial-gradient(circle at 82% 18%, rgba(37, 99, 255, .22), transparent 34%),
    linear-gradient(100deg, rgba(15, 45, 70, .98) 0%, rgba(15, 45, 70, .90) 62%, rgba(15, 45, 70, .72) 100%);
}
.form input[type="email"] { border-color: rgba(229, 235, 242, .34); background: rgba(255, 255, 255, .08); }
.form input[type="email"]:focus { border-color: var(--accent-lit); box-shadow: 0 0 0 3px rgba(37, 99, 255, .24); }
.done { background: rgba(37, 99, 255, .16); border-color: rgba(140, 177, 255, .48); color: #BFD2FF; }
footer { background: #091F31; }
.disc { border-top-color: rgba(229, 235, 242, .16); }

/* Legal and policy pages */
.legal-page {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic Medium", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 2;
  letter-spacing: .03em;
  -webkit-font-smoothing: antialiased;
}
.legal-page header, .legal-page footer {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: var(--on-navy);
  padding: 24px max(20px, calc((100vw - 860px) / 2));
}
.legal-page header { border-bottom: 1px solid rgba(229, 235, 242, .16); }
.legal-page header a, .legal-page footer a { color: var(--on-navy); text-decoration: none; font-weight: 600; letter-spacing: .06em; }
.legal-page main { width: min(100% - 40px, 860px); margin: auto; padding: 64px 0 96px; }
.legal-page h1 { margin: 0 0 32px; color: var(--navy); font-size: 40px; line-height: 1.5; font-weight: 600; }
.legal-page h2 { margin: 56px 0 24px; padding-bottom: 12px; border-bottom: 1px solid var(--line); color: var(--navy); font-size: 22px; line-height: 1.6; font-weight: 600; }
.legal-page p, .legal-page li, .legal-page td { color: var(--ink-2); }
.legal-page a { color: var(--accent); text-underline-offset: 3px; }
.legal-page .draft, .legal-page .pending {
  border-left: 4px solid var(--accent);
  border-radius: 0 12px 12px 0;
  background: #EEF4FF;
  color: var(--ink);
  padding: 16px 20px;
}
.legal-page .draft { margin-bottom: 40px; }
.legal-page .small { color: var(--ink-3); font-size: 14px; line-height: 1.8; }
.legal-page table { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: var(--paper); }
.legal-page th, .legal-page td { border: 0; border-bottom: 1px solid var(--line); padding: 18px 20px; text-align: left; vertical-align: top; }
.legal-page tr:last-child th, .legal-page tr:last-child td { border-bottom: 0; }
.legal-page th { width: 32%; background: var(--paper-2); color: var(--navy); font-weight: 600; }

/* Local test report */
.test-report-page { background: var(--paper-2); color: var(--ink); }
.test-report-page main { border-color: var(--line); border-radius: 16px; box-shadow: 0 16px 40px rgba(15, 45, 70, .08); }
.test-report-page .label { border-radius: 10px; background: #E7EFFF; color: var(--accent); }
.test-report-page .notice { border-left-color: var(--accent); background: #EEF4FF; }
.test-report-page a { color: var(--accent); }

@media (max-width: 1100px) {
  .mark .en { font-size: 52px; line-height: 60px; }
}

@media (max-width: 720px) {
  .mark .en { font-size: 36px; line-height: 44px; letter-spacing: .06em; }
  .hero { min-height: auto; }
  .hero .wrap { padding-block: 128px 80px; }
  .t-hero { font-size: 28px; line-height: 48px; }
  .hero-bg img { opacity: .34; object-position: 68% center; }
  .hero-veil { background: linear-gradient(180deg, rgba(255, 255, 255, .92) 0%, rgba(245, 248, 252, .80) 62%, rgba(229, 235, 242, .64) 100%); }
  .nav { border-radius: 16px; }
  .legal-page main { width: min(100% - 40px, 860px); padding-block: 48px 72px; }
  .legal-page h1 { font-size: 30px; line-height: 1.5; }
  .legal-page h2 { margin-top: 48px; font-size: 20px; }
}

@media (max-width: 600px) {
  .legal-page th, .legal-page td { display: block; width: 100%; }
  .legal-page th { border-bottom: 0; padding-bottom: 8px; }
  .legal-page td { padding-top: 8px; }
}