/* ============================================================
   MealMath — Shared Stylesheet
   Brand: Dark, Hero-Gelb #FFD60A, IBM Plex Sans/Mono
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@400;500&display=swap');

:root {
  /* Backgrounds */
  --bg: #0A0A0B;
  --surface: #161618;
  --elevated: #1F1F23;
  --border: #2A2A30;

  /* Text */
  --text: #FAFAFA;
  --text-secondary: #A1A1AA;
  --text-tertiary: #71717A;

  /* Brand */
  --primary: #FFD60A;
  --on-primary: #0A0A0B;

  /* Semantic */
  --success: #30D158;

  /* Layout */
  --maxw: 1080px;
  --radius: 16px;
  --radius-sm: 10px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Never use weight 600+ per brand rule */
h1, h2, h3, h4, strong, b {
  font-weight: 500;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: opacity 0.15s ease;
}
a:hover {
  opacity: 0.75;
}

::selection {
  background: var(--primary);
  color: var(--on-primary);
}

/* ---------- Layout containers ---------- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.narrow {
  max-width: 760px;
}

/* ---------- Top nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500;
  font-size: 19px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand:hover { opacity: 1; }
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--primary);
  color: var(--on-primary);
  border-radius: 9px;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500;
  font-size: 17px;
  position: relative;
}
.logo-mark sup {
  font-size: 10px;
  position: absolute;
  top: 6px;
  right: 7px;
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 15px;
}
.nav-links a:hover { color: var(--text); opacity: 1; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
}
.hero::before {
  /* ambient glow — the one accent moment */
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 760px;
  height: 760px;
  background: radial-gradient(circle, rgba(255, 214, 10, 0.10) 0%, rgba(255, 214, 10, 0) 62%);
  pointer-events: none;
  z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; }

.eyebrow {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--primary);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(40px, 7vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  max-width: 14ch;
  margin-bottom: 24px;
}
.hero h1 .hl {
  color: var(--primary);
}

.hero .lead {
  font-size: clamp(18px, 2.4vw, 22px);
  color: var(--text-secondary);
  max-width: 52ch;
  margin-bottom: 40px;
}

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 28px;
  border-radius: var(--radius-sm);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.12s ease, opacity 0.15s ease;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}
.btn-primary:hover { opacity: 1; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { opacity: 1; border-color: var(--text-tertiary); }

.hero-note {
  margin-top: 22px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ---------- Section ---------- */
.section {
  padding: 90px 0;
  border-top: 1px solid var(--border);
}
.section-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 18px;
}
.section h2 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 20ch;
  margin-bottom: 18px;
}
.section .section-lead {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 56ch;
}

/* ---------- Feature grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
}
.card .ic {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--elevated);
  border-radius: 11px;
  margin-bottom: 20px;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--primary);
  font-size: 20px;
}
.card h3 {
  font-size: 19px;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.card p {
  color: var(--text-secondary);
  font-size: 15.5px;
}

/* ---------- Steps (how it works) ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: 26px;
}
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--primary);
  display: block;
  margin-bottom: 14px;
}
.step h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.step p {
  color: var(--text-secondary);
  font-size: 15.5px;
}

/* ---------- CTA band ---------- */
.cta-band {
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 56px 40px;
  text-align: center;
}
.cta-band h2 {
  font-size: clamp(26px, 3.6vw, 36px);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  max-width: none;
  margin-left: auto;
  margin-right: auto;
}
.cta-band p {
  color: var(--text-secondary);
  font-size: 17px;
  margin-bottom: 30px;
  max-width: 46ch;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 48px;
  margin-top: 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
}
.footer-brand {
  max-width: 320px;
}
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p {
  color: var(--text-tertiary);
  font-size: 14px;
}
.footer-cols {
  display: flex;
  gap: 64px;
  flex-wrap: wrap;
}
.footer-col h4 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  font-weight: 400;
}
.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 11px;
}
.footer-col a:hover { color: var(--text); opacity: 1; }
.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-tertiary);
  font-size: 13.5px;
  font-family: 'IBM Plex Mono', monospace;
}

/* ============================================================
   Legal / content pages (Impressum, Datenschutz, AGB)
   ============================================================ */
.page-head {
  padding: 80px 0 40px;
  border-bottom: 1px solid var(--border);
}
.page-head .eyebrow { margin-bottom: 20px; }
.page-head h1 {
  font-size: clamp(32px, 5vw, 52px);
  letter-spacing: -0.02em;
  line-height: 1.08;
}
.page-head .sub {
  color: var(--text-secondary);
  font-size: 17px;
  margin-top: 14px;
}

.legal {
  padding: 56px 0 90px;
}
.legal h2 {
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 44px 0 14px;
}
.legal h2:first-child { margin-top: 0; }
.legal h3 {
  font-size: 17px;
  margin: 28px 0 10px;
  color: var(--text);
}
.legal p, .legal li {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 14px;
}
.legal ul {
  padding-left: 22px;
  margin-bottom: 14px;
}
.legal li { margin-bottom: 6px; }
.legal address {
  font-style: normal;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 14px;
}
.legal a { word-break: break-word; }

/* Placeholder banner for not-yet-filled legal pages */
.placeholder {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  margin-bottom: 40px;
}
.placeholder p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15.5px;
}
.placeholder strong { color: var(--text); }

.toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 26px;
  margin-bottom: 40px;
}
.toc h4 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 14px;
  font-weight: 400;
}
.toc a {
  color: var(--text-secondary);
  font-size: 15px;
}
.toc ol { padding-left: 20px; }
.toc li { margin-bottom: 8px; color: var(--text-secondary); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .grid, .steps { grid-template-columns: 1fr; }
  .nav-links { gap: 18px; }
  .nav-links a.nav-hide { display: none; }
  .hero { padding: 88px 0 72px; }
  .section { padding: 64px 0; }
  .footer-inner { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}