/* Eternitree Landingpage – Corporate-Design-Tokens
   Basis: docs/ETERNITREE_CORPORATE_DESIGN.md (Clay/Teal-Markenfarben),
   Hintergrund hier bewusst sehr dunkles Blau-Schwarz statt Anthrazit. */

:root {
  --bg: #060911;
  --bg-alt: #0a0f1c;
  --surface: #10182b;
  --surface-2: #151f36;
  --surface-3: #1c2740;
  --border: #223052;
  --border-strong: #3a4a72;

  --text: #eef2f9;
  --muted: #9aa8c4;
  --muted-2: #6f7d9c;

  --clay: #b36138;
  --clay-bright: #d97c46;
  --clay-dark: #8e4628;
  --clay-soft: #241710;
  --clay-text: #e8c4b2;

  --teal: #18848b;
  --teal-bright: #2aa7af;
  --teal-soft: #0c2426;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-soft: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --shadow-card: 0 12px 30px -18px rgba(0, 0, 0, 0.55);

  --font-ui: "Segoe UI", -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
  --font-brand: "Instrument Serif", Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html, body {
  overflow-x: hidden;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60rem 40rem at 85% -10%, rgba(179, 97, 56, 0.16), transparent 60%),
    radial-gradient(50rem 30rem at -10% 20%, rgba(24, 132, 139, 0.12), transparent 55%),
    var(--bg);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 96px 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-brand);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.3rem; font-family: var(--font-ui); font-weight: 700; }

p {
  margin: 0 0 16px;
  color: var(--muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clay-bright);
  background: var(--clay-soft);
  border: 1px solid rgba(179, 97, 56, 0.35);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head p {
  margin-bottom: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 15px;
  font-family: var(--font-ui);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--clay);
  color: #fff9f5;
}
.btn-primary:hover { background: var(--clay-bright); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--clay-bright); color: var(--clay-bright); }

.btn-block { width: 100%; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 9, 17, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
}

.brand img {
  height: 48px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.main-nav a:hover { color: var(--text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* Hero */
.hero {
  padding: 88px 0 60px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-copy,
.hero-visual {
  min-width: 0;
}

.hero h1 { color: #fff; }

.hero-lead {
  font-size: 1.15rem;
  max-width: 46ch;
}

.hero-cta {
  display: flex;
  gap: 14px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.hero-meta {
  display: flex;
  gap: 28px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-meta div {
  border-left: 2px solid var(--clay);
  padding-left: 12px;
}

.hero-meta strong {
  display: block;
  font-size: 1.4rem;
  font-family: var(--font-brand);
  color: #fff;
}

.hero-meta span {
  font-size: 12.5px;
  color: var(--muted-2);
}

/* Hero visual: stylized app mockup (no real product screenshot) */
.hero-visual {
  position: relative;
}

.mock-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.mock-titlebar {
  height: 34px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

.mock-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border-strong);
}

.mock-body {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  min-height: 300px;
}

.mock-sidebar {
  background: var(--bg-alt);
  border-right: 1px solid var(--border);
  padding: 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mock-sidebar .mock-icon {
  width: 100%;
  height: 30px;
  border-radius: 6px;
  background: var(--surface-3);
}

.mock-sidebar .mock-icon.active {
  background: var(--clay-soft);
  border: 1px solid rgba(179, 97, 56, 0.5);
}

.mock-main {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.mock-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.mock-kpi {
  min-width: 0;
}

.mock-kpi span,
.mock-kpi strong {
  overflow-wrap: break-word;
}

.mock-kpi {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}

.mock-kpi span {
  display: block;
  font-size: 10px;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.mock-kpi strong {
  font-family: var(--font-brand);
  font-size: 20px;
  color: var(--clay-bright);
}

.mock-kpi.teal strong { color: var(--teal-bright); }

.mock-rows {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  flex: 1;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mock-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-3);
  border-radius: 6px;
  padding: 8px 10px;
}

.mock-row .bar {
  height: 8px;
  border-radius: 4px;
  background: var(--border-strong);
}

.mock-row .bar.b1 { width: 40%; }
.mock-row .bar.b2 { width: 65%; background: var(--clay); opacity: 0.7; }
.mock-row .bar.b3 { width: 25%; }

.mock-tag {
  margin-left: auto;
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal-bright);
  white-space: nowrap;
}

.hero-visual-caption {
  text-align: center;
  font-size: 12px;
  color: var(--muted-2);
  margin-top: 14px;
}

/* Logic strip */
.flow-strip {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.flow-strip .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13.5px;
}

.flow-step {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}

.flow-arrow {
  color: var(--clay-bright);
  font-weight: 700;
}

/* Advantages grid */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.advantage-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
}

.advantage-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--clay-soft);
  border: 1px solid rgba(179, 97, 56, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--clay-bright);
}

.advantage-card h3 {
  margin-bottom: 8px;
  font-size: 17px;
}

.advantage-card p {
  font-size: 14.5px;
  margin-bottom: 0;
}

/* Feature/module list */
.features {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.feature-card .tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--teal-bright);
  margin-bottom: 10px;
}

.feature-card h3 {
  font-size: 15.5px;
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 13.5px;
  margin-bottom: 0;
}

/* Packages */
.packages {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.package-path {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.package-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
}

.package-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: linear-gradient(90deg, var(--clay-dark), var(--clay-bright));
}

.package-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--teal-soft);
  border: 1px solid rgba(24, 132, 139, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--teal-bright);
}

.package-kicker {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clay-bright);
  margin-bottom: 6px;
}

.package-card h3 {
  margin-bottom: 4px;
}

.package-audience {
  font-size: 13.5px;
  margin-bottom: 16px;
}

.package-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.package-list li {
  display: flex;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text);
}

.package-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--teal-bright);
  flex-shrink: 0;
}

.package-note {
  margin-top: 24px;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--muted);
}

.package-note strong {
  color: var(--text);
}

/* Screenshots */
.screens-note {
  text-align: center;
  font-size: 13px;
  color: var(--muted-2);
  margin-top: -24px;
  margin-bottom: 48px;
}

.screens-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.screen-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.screen-frame {
  aspect-ratio: 16 / 10;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.screen-frame .placeholder-label {
  position: absolute;
  bottom: 10px;
  right: 12px;
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted-2);
  background: rgba(6, 9, 17, 0.7);
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.screen-caption {
  padding: 16px 18px;
}

.screen-caption h3 {
  font-size: 15px;
  margin-bottom: 4px;
}

.screen-caption p {
  font-size: 13px;
  margin-bottom: 0;
}

/* Mini mockups reused inside screenshot cards */
.mini-mock { width: 82%; }
.mini-mock .mock-titlebar { height: 22px; }
.mini-mock .mock-dot { width: 6px; height: 6px; }
.mini-mock .mock-body { min-height: 150px; grid-template-columns: 46px minmax(0, 1fr); }
.mini-mock .mock-main { padding: 10px; gap: 8px; }
.mini-mock .mock-kpi { padding: 7px 8px; }
.mini-mock .mock-kpi strong { font-size: 14px; }
.mini-mock .mock-kpi span { font-size: 8px; margin-bottom: 3px; }
.mini-mock .mock-rows { padding: 7px; gap: 5px; }
.mini-mock .mock-row { padding: 5px 7px; gap: 6px; }
.mini-mock .mock-tag { font-size: 8px; padding: 2px 6px; }

/* CTA / contact */
.contact {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

.contact .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: flex-start;
}

.contact-info .eyebrow { margin-bottom: 20px; }

.contact-points {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-points li {
  display: flex;
  gap: 12px;
  font-size: 14.5px;
  color: var(--text);
}

.contact-points li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--clay-bright);
  flex-shrink: 0;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-soft);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
}

.field textarea {
  min-height: 110px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--clay-bright);
}

.field-hint {
  font-size: 12px;
  color: var(--muted-2);
  margin-top: 6px;
}

.consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 20px;
}

.consent input {
  margin-top: 3px;
}

.form-status {
  margin-top: 14px;
  font-size: 13.5px;
  display: none;
}

.form-status.visible { display: block; }
.form-status.ok { color: var(--teal-bright); }
.form-status.err { color: var(--clay-bright); }

/* Footer */
.site-footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}

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

.footer-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13.5px;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: var(--muted-2);
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

/* Legal pages */
.legal-page {
  padding: 64px 0 96px;
}

.legal-page .container {
  max-width: 820px;
}

.legal-page h1 { color: #fff; margin-bottom: 6px; }
.legal-page .updated { color: var(--muted-2); font-size: 13px; margin-bottom: 40px; }
.legal-page h2 {
  font-family: var(--font-ui);
  font-size: 1.15rem;
  margin-top: 40px;
  color: #fff;
}
.legal-page h3 {
  font-size: 15px;
  margin-top: 24px;
}
.legal-page p, .legal-page li { color: var(--muted); font-size: 14.5px; }
.legal-page ul { padding-left: 20px; }
.legal-page a.inline-link { color: var(--clay-bright); text-decoration: underline; }

.todo-box {
  background: var(--clay-soft);
  border: 1px dashed var(--clay);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  font-size: 13.5px;
  color: var(--clay-text);
  margin: 18px 0;
}

/* Responsive */
@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .package-grid { grid-template-columns: 1fr; }
  .screens-grid { grid-template-columns: 1fr; }
  .contact .container { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-actions .btn-ghost { display: none; }
  .advantages-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .hero { padding-top: 48px; }
}

.site-header.nav-open .main-nav {
  display: flex;
  position: absolute;
  top: 76px;
  left: 0;
  right: 0;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  flex-direction: column;
  align-items: flex-start;
  padding: 20px 24px 28px;
  gap: 18px;
}