/* Tuhdun landing — minimal, professional, mobile-first */

:root {
  --bg: #fafaf7;
  --bg-alt: #f3f1ea;
  --ink: #1c1a17;
  --ink-soft: #4a4540;
  --ink-faint: #7a736b;
  --accent: #c7522a;
  --accent-soft: #f4e3d7;
  --line: #e6e1d6;
  --max-width: 980px;
  --radius: 10px;
  --font-body:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */

.site-header {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.15s ease;
}

.site-nav a:hover {
  color: var(--accent);
}

/* ===== Hero ===== */

.hero {
  padding: 80px 0 60px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5.5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  max-width: 820px;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 680px;
  margin: 0 0 32px;
}

.hero-meta {
  font-size: 14px;
  color: var(--ink-faint);
  margin: 0;
}

/* ===== Sections ===== */

.section {
  padding: 72px 0;
  border-top: 1px solid var(--line);
}

.section.problem {
  background: var(--bg);
}

.section.steps {
  background: var(--bg-alt);
}

.section.personas {
  background: var(--bg);
}

.section.roadmap {
  background: var(--bg-alt);
}

.section.about {
  background: var(--bg);
}

.section.notify {
  background: var(--accent-soft);
  border-top: 1px solid var(--accent-soft);
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 24px;
  max-width: 760px;
}

.section h2 em {
  font-style: italic;
  color: var(--accent);
}

.section p {
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 700px;
  margin: 0 0 18px;
}

.section p strong {
  color: var(--ink);
  font-weight: 600;
}

/* ===== Steps ===== */

.step-list {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  display: grid;
  gap: 20px;
}

.step-list > li {
  background: var(--bg);
  padding: 24px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.step-list h3 {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 0 0 10px;
  color: var(--ink);
}

.step-list p {
  margin: 0;
  max-width: none;
}

/* ===== Personas ===== */

.persona-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 24px;
}

@media (min-width: 720px) {
  .persona-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.persona-card {
  background: var(--bg-alt);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.persona-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 0 0 12px;
  color: var(--ink);
}

.persona-card p {
  font-size: 16px;
  margin: 0;
  max-width: none;
}

/* ===== Roadmap ===== */

.feature-list {
  margin: 24px 0 0;
  padding-left: 22px;
}

.feature-list li {
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.feature-list li strong {
  color: var(--ink);
  font-weight: 600;
}

/* ===== Footer ===== */

.site-footer {
  background: var(--ink);
  color: #d6d1c8;
  padding: 56px 0 24px;
  margin-top: 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

@media (min-width: 720px) {
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-block p,
.footer-block ul {
  margin: 0;
  padding: 0;
}

.footer-block ul {
  list-style: none;
}

.footer-block li {
  margin-bottom: 6px;
  font-size: 15px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 20px;
  color: #fff;
  margin-bottom: 6px !important;
}

.footer-tag {
  font-size: 14px;
  color: #a39c92;
}

.footer-heading {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 12px !important;
}

.footer-block a {
  color: #d6d1c8;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-block a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid #2c2924;
  padding-top: 20px;
  font-size: 13px;
  color: #8a8278;
}

.footer-bottom p {
  margin: 0;
}

/* ===== Legal pages ===== */

.legal-page {
  padding: 60px 0 80px;
}

.legal-page h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 42px);
  line-height: 1.15;
  margin: 0 0 16px;
}

.legal-page .legal-meta {
  font-size: 14px;
  color: var(--ink-faint);
  margin: 0 0 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.legal-page section {
  margin-bottom: 32px;
  max-width: 760px;
}

.legal-page h2 {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 0 0 12px;
  color: var(--ink);
}

.legal-page p,
.legal-page ul {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 14px;
  max-width: none;
}

.legal-page ul {
  padding-left: 22px;
}

.legal-page li {
  margin-bottom: 8px;
}

.legal-page a {
  color: var(--accent);
}