/* ===== TOKENS ===================================================== */
:root {
  --paper-50: #fdfbf7;
  --paper-100: #faf7f2;
  --paper-200: #f3eee5;
  --paper-300: #ebe6df;
  --ink-100: #ebe6df;
  --ink-300: #c4bdb3;
  --ink-500: #7a7269;
  --ink-700: #4a443d;
  --ink-900: #1a1714;
  --terracotta-50: #fbf3ee;
  --terracotta-500: #c2683f;
  --terracotta-600: #a45230;
  --terracotta-700: #7d3d24;
  --forest-500: #3e6557;
  --forest-600: #2d4a3e;

  --font-display: 'Fraunces', 'Hoefler Text', Georgia, serif;
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;

  --container: 1100px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-700);
  background: var(--paper-100);
  overflow-x: hidden;
}

/* Subtle paper grain overlay */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.04;
  background-image:
    repeating-radial-gradient(circle at 25% 25%, #1a1714 0, transparent 1px),
    repeating-radial-gradient(circle at 75% 75%, #1a1714 0, transparent 1px);
  background-size: 3px 3px, 5px 5px;
  mix-blend-mode: multiply;
}

.container {
  width: 100%;
  max-width: var(--container);
  padding-inline: var(--gutter);
  margin-inline: auto;
}

/* ===== TYPOGRAPHY ================================================= */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--terracotta-600);
  margin: 0 0 1.5rem 0;
}

.display {
  font-family: var(--font-display);
  font-weight: 300;
  font-style: normal;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.96;
  letter-spacing: -0.035em;
  color: var(--ink-900);
  margin: 0;
}

.display em {
  font-style: italic;
  font-weight: 300;
  color: var(--terracotta-600);
}

.display-h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  margin: 0 0 2rem 0;
}

.display-h2 em {
  font-style: italic;
  color: var(--terracotta-600);
}

.lead {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.15rem, 1.6vw, 1.4rem);
  line-height: 1.55;
  color: var(--ink-700);
  max-width: 38em;
  margin: 0 0 2.5rem 0;
}

.muted {
  color: var(--ink-500);
  font-size: 0.95rem;
  line-height: 1.7;
}

.rule {
  width: 64px;
  height: 1px;
  background: var(--ink-300);
  margin: 2rem 0;
}

/* ===== NAV ======================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in srgb, var(--paper-100) 88%, transparent);
  border-bottom: 1px solid var(--ink-100);
}

@supports not (background: color-mix(in srgb, red 50%, transparent)) {
  .nav {
    background: var(--paper-100);
  }
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink-900);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: var(--terracotta-500);
  color: var(--paper-50);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 18px;
  line-height: 1;
}

.brand-mark.small {
  width: 24px;
  height: 24px;
  font-size: 14px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.nav nav {
  display: flex;
  gap: 1.6rem;
  align-items: center;
}

.nav nav a {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-900);
  text-decoration: none;
  transition: color 0.15s ease;
  position: relative;
}

.nav nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--terracotta-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.nav nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
}

.nav nav a:hover {
  color: var(--terracotta-600);
}

.nav-cta {
  background: var(--terracotta-500);
  color: #fff !important;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px !important;
  letter-spacing: 0.01em;
}

.nav-cta:hover {
  background: var(--terracotta-700);
  color: #fff !important;
}

.nav-cta::after {
  display: none;
}

@media (max-width: 640px) {
  .nav nav a:not(.nav-cta) {
    display: none;
  }
}

/* ===== HERO ======================================================= */
.hero {
  padding-block: clamp(4rem, 10vw, 8rem) clamp(3rem, 8vw, 6rem);
}

.cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.1rem 1.8rem;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: var(--ink-900);
  color: var(--paper-50);
}

.btn-primary:hover {
  background: var(--terracotta-700);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-700);
  border: 1px solid var(--ink-300);
}

.btn-ghost:hover {
  border-color: var(--ink-900);
  color: var(--ink-900);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem 3rem;
  border-top: 1px solid var(--ink-100);
  padding-top: 2.5rem;
  max-width: 800px;
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 3rem;
  line-height: 1;
  color: var(--ink-900);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-500);
  line-height: 1.5;
}

/* ===== FEATURES =================================================== */
.features {
  padding-block: clamp(4rem, 8vw, 6rem);
  border-top: 1px solid var(--ink-100);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: var(--paper-50);
  border: 1px solid var(--ink-100);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: var(--terracotta-500);
  transform: translateY(-2px);
}

.feature-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--terracotta-600);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.5rem;
  color: var(--ink-900);
  margin: 0 0 1rem 0;
  letter-spacing: -0.01em;
}

.feature-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-700);
}

/* ===== PHASES (TIMELINE) ========================================== */
.phases {
  padding-block: clamp(4rem, 8vw, 6rem);
  border-top: 1px solid var(--ink-100);
}

.timeline {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.phase-row {
  display: grid;
  grid-template-columns: 130px 6px 1fr;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--ink-100);
  align-items: start;
}

.phase-row:last-child {
  border-bottom: none;
}

.phase-week {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-500);
  padding-top: 0.4rem;
}

.phase-band {
  height: 100%;
  min-height: 60px;
  border-radius: 999px;
}

.band-1 { background: var(--terracotta-500); }
.band-2 { background: var(--terracotta-600); }
.band-3 { background: var(--forest-500); }
.band-4 { background: var(--forest-600); }

.phase-text h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem 0;
  color: var(--ink-900);
}

.phase-text p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-700);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .phase-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .phase-band {
    height: 4px;
    min-height: 4px;
    width: 60px;
  }
}

/* ===== TRUST ====================================================== */
.trust {
  padding-block: clamp(4rem, 8vw, 6rem);
  border-top: 1px solid var(--ink-100);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 4rem;
}

.trust-grid h3 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.6rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--ink-900);
  margin: 0 0 1.25rem 0;
}

.bullets {
  list-style: none;
  padding: 0;
  margin: 0;
}

.bullets li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.85rem;
  color: var(--ink-700);
  font-size: 15px;
  line-height: 1.6;
}

.bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--terracotta-500);
  font-family: var(--font-mono);
}

/* ===== NEWSLETTER ================================================= */
.newsletter {
  padding-block: clamp(4rem, 10vw, 7rem);
  background: linear-gradient(180deg, var(--paper-100) 0%, var(--paper-200) 100%);
  border-top: 1px solid var(--ink-100);
  border-bottom: 1px solid var(--ink-100);
}

.newsletter-card {
  background: var(--paper-50);
  border: 1px solid var(--ink-100);
  border-radius: 28px;
  padding: clamp(2.5rem, 5vw, 4.5rem);
  max-width: 800px;
}

.newsletter-lead {
  margin-bottom: 2.5rem;
}

.signup {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
  background: var(--paper-100);
  border: 1px solid var(--ink-100);
  border-radius: 999px;
  padding: 0.4rem;
  max-width: 540px;
  transition: border-color 0.2s ease;
}

.signup:focus-within {
  border-color: var(--ink-900);
}

.signup input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 0.85rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--ink-900);
}

.signup input::placeholder {
  color: var(--ink-300);
}

.signup button {
  background: var(--ink-900);
  color: var(--paper-50);
  border: none;
  border-radius: 999px;
  padding: 0 1.6rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.15s ease;
  white-space: nowrap;
}

.signup button:hover {
  background: var(--terracotta-700);
}

.signup button:disabled {
  opacity: 0.6;
  cursor: progress;
}

@media (max-width: 540px) {
  .signup {
    flex-direction: column;
    border-radius: 20px;
    padding: 0.75rem;
  }
  .signup input {
    padding: 0.85rem 0.5rem;
  }
  .signup button {
    padding: 0.95rem;
    border-radius: 14px;
  }
}

.signup-msg {
  margin-top: 1rem;
  min-height: 1.2em;
  font-family: var(--font-sans);
  font-size: 14px;
}

.signup-msg.ok {
  color: var(--forest-600);
}

.signup-msg.error {
  color: var(--terracotta-700);
}

.fineprint {
  margin-top: 2rem;
  font-size: 12px;
  color: var(--ink-500);
  line-height: 1.6;
  max-width: 540px;
}

.fineprint a {
  color: var(--ink-700);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  overflow: hidden;
}

/* ===== PRIVACY ==================================================== */
.privacy {
  padding-block: clamp(4rem, 8vw, 6rem);
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.5rem 3rem;
  margin-top: 2rem;
}

.privacy-grid h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--ink-900);
  margin: 0 0 0.75rem 0;
}

.privacy-grid p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-700);
  line-height: 1.6;
}

/* ===== FOOTER ===================================================== */
.footer {
  padding-block: 3rem;
  border-top: 1px solid var(--ink-100);
  background: var(--paper-100);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-row > div {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.footer-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-500);
  letter-spacing: 0.04em;
  margin-left: 0.5rem;
}

.footer nav {
  display: flex;
  gap: 1.5rem;
}

.footer nav a {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--ink-700);
  text-decoration: none;
}

.footer nav a:hover {
  color: var(--terracotta-600);
}

/* ===== MOTION ===================================================== */
@media (prefers-reduced-motion: no-preference) {
  .display, .lead, .cta-row, .hero-stats {
    animation: rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) backwards;
  }
  .display { animation-delay: 0.05s; }
  .lead { animation-delay: 0.18s; }
  .cta-row { animation-delay: 0.3s; }
  .hero-stats { animation-delay: 0.42s; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper-50: #1d1a16;
    --paper-100: #16140f;
    --paper-200: #1a1813;
    --paper-300: #211e18;
    --ink-100: #2a2620;
    --ink-300: #5a5048;
    --ink-500: #a39a90;
    --ink-700: #d8d2c8;
    --ink-900: #f5f0e7;
    --terracotta-50: #2a1f17;
    --terracotta-500: #d4895c;
    --terracotta-600: #e09a72;
    --terracotta-700: #c2683f;
  }

  /* Dark-Mode-spezifische Anpassungen für Komponenten mit fester Farbgebung */
  .feature-card {
    background: var(--paper-200);
  }
  .newsletter {
    background: linear-gradient(180deg, var(--paper-100) 0%, var(--paper-200) 100%);
  }
  .signup {
    background: var(--paper-200);
  }
  .signup button {
    background: var(--terracotta-500);
    color: #fff;
  }
  .signup button:hover {
    background: var(--terracotta-700);
  }
  .btn-primary {
    background: var(--terracotta-500);
    color: #fff;
  }
  .btn-primary:hover {
    background: var(--terracotta-700);
  }
  .nav-cta {
    background: var(--terracotta-500);
    color: #fff !important;
  }
}