:root {
  --bg: #0d1117;
  --panel: #151b23;
  --panel-soft: #1b2430;
  --line: #2b3544;
  --text: #f4f7fb;
  --muted: #aab5c4;
  --accent: #f7931a;
  --accent-dark: #c66805;
  --success: #40c463;
  --error: #ff6b6b;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px max(20px, calc((100vw - var(--max)) / 2));
  background: rgba(13, 17, 23, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand,
.site-nav,
.hero-actions,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.hero-actions {
  flex-wrap: wrap;
  margin-top: 4px;
}

.desktop-form-hint {
  display: none;
  text-decoration: none;
}

.brand {
  font-weight: 800;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 168px;
  height: auto;
  border-radius: 6px;
  object-fit: contain;
}

.site-nav a {
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
}

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

.nav-cta {
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--panel-soft);
  color: var(--text) !important;
}

main#top {
  background: url(assets/bitcoin-mining-ohne-hardware-hero.jpg) no-repeat center top;
  background-size: 100% auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  gap: 32px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 20px 48px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  background-color: rgba(0, 0, 0, 0.5);
  padding: 28px;
}

.eyebrow,
.panel-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  margin-bottom: 18px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
}

.hero-lead {
  max-width: 660px;
  color: var(--muted);
  font-size: 19px;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.primary-btn {
  background: var(--accent);
  color: #1a1004;
}

.primary-btn:hover {
  background: #ffad42;
}

.secondary-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

@media (min-width: 861px) {
  .desktop-form-hint {
    display: flex;
    align-items: center;
    gap: 10px;
    width: fit-content;
    margin-top: 14px;
    padding: 10px 14px;
    border: 1px solid rgba(247, 147, 26, 0.4);
    border-radius: 8px;
    background: rgba(247, 147, 26, 0.12);
    color: var(--text);
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: background 160ms ease, border-color 160ms ease;
  }

  .desktop-form-hint:hover {
    border-color: rgba(247, 147, 26, 0.75);
    background: rgba(247, 147, 26, 0.18);
  }

  .hint-arrow {
    color: var(--accent);
    font-size: 22px;
    line-height: 1;
  }
}

.full-width {
  width: 100%;
}

.trust-note,
.form-note {
  color: var(--muted);
  font-size: 14px;
}

.trust-note {
  margin-top: 18px;
}

.signup-panel,
.content-band,
.split-section,
.faq {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
}

.signup-panel {
  align-self: start;
  padding: 28px;
  scroll-margin-top: 140px;
}

.signup-panel:target,
.signup-panel.is-highlighted {
  border-color: rgba(247, 147, 26, 0.85);
  box-shadow: 0 0 0 3px rgba(247, 147, 26, 0.2), 0 18px 60px rgba(0, 0, 0, 0.36);
}

.signup-panel.is-highlighted {
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.signup-panel input:first-of-type {
  scroll-margin-top: 160px;
}

.lead-form {
  display: grid;
  gap: 16px;
}

.field-row {
  display: grid;
  gap: 6px;
}

label {
  color: var(--text);
  font-weight: 700;
}

input[type="text"],
input[type="email"],
input[type="number"],
select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f141b;
  color: var(--text);
  font: inherit;
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 20px, calc(100% - 12px) 20px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

input:focus,
select:focus {
  outline: 2px solid rgba(247, 147, 26, 0.35);
  border-color: var(--accent);
}

.hidden-field {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.consent {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.consent a {
  color: var(--text);
}

.notice {
  margin: 0 0 18px;
  padding: 12px;
  border-radius: 8px;
  font-weight: 700;
}

.notice.success {
  color: #dfffe7;
  background: rgba(64, 196, 99, 0.14);
  border: 1px solid rgba(64, 196, 99, 0.35);
}

.notice.error {
  color: #ffe5e5;
  background: rgba(255, 107, 107, 0.14);
  border: 1px solid rgba(255, 107, 107, 0.35);
}

.content-band,
.split-section,
.faq {
  max-width: var(--max);
  margin: 24px auto;
  padding: 42px 28px;
  scroll-margin-top: 140px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 24px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-grid article {
  min-height: 180px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.seo-link-grid a {
  color: var(--text);
  text-decoration-color: rgba(247, 147, 26, 0.65);
  text-underline-offset: 4px;
}

.article-main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 20px 20px;
}

.article-hero,
.article-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.article-hero {
  padding: 44px 28px;
}

.article-hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.article-section {
  margin-top: 24px;
  padding: 34px 28px;
}

.article-section p,
.article-section li {
  color: var(--muted);
}

.article-section ul,
.article-section ol {
  padding-left: 22px;
}

.article-section li + li {
  margin-top: 8px;
}

.article-cta {
  border-color: rgba(247, 147, 26, 0.45);
  background: linear-gradient(180deg, rgba(247, 147, 26, 0.12), var(--panel));
}

.feature-grid p,
.split-section p,
.risk-band p,
.faq p,
.insight-list p {
  color: var(--muted);
}

.split-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
  scroll-margin-top: 140px;
}

.sequence-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sequence-list li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  column-gap: 16px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.sequence-list span {
  display: block;
  color: var(--accent);
  font-weight: 800;
}

.insight-list {
  display: grid;
  gap: 12px;
}

.insight-list article {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.insight-list h3 {
  margin-bottom: 6px;
}

.risk-band {
  border-color: rgba(247, 147, 26, 0.4);
}

.tool-page {
  background: radial-gradient(circle at top left, rgba(247, 147, 26, 0.16), transparent 34%), var(--bg);
  padding-top: 24px;
}

.tool-page .tool-hero h1 {
  max-width: 900px;
  font-size: clamp(38px, 5vw, 62px);
}

.tool-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: end;
}

.strategy-tool {
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
}

.strategy-form {
  display: grid;
  gap: 18px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.tool-result {
  position: sticky;
  top: 112px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.score-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.recommendation-detail {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  color: var(--muted);
}

.recommendation-detail h3 {
  color: var(--text);
  font-size: 18px;
}

.comparison-table {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 17, 23, 0.5);
}

.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr 0.9fr;
  gap: 12px;
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.comparison-row:first-child {
  border-top: 0;
}

.comparison-head {
  color: var(--text);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.comparison-row strong {
  display: block;
  color: var(--text);
}

.comparison-row small {
  display: block;
  margin-top: 3px;
  color: var(--accent);
  font-weight: 800;
}

.impact-note {
  margin: 12px 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 17, 23, 0.5);
}

.impact-note h4 {
  margin: 0 0 8px;
  color: var(--text);
  font-size: 15px;
}

.impact-note p {
  margin-bottom: 8px;
}

.impact-note p:last-child {
  margin-bottom: 0;
}

.scenario-map {
  display: grid;
  gap: 16px;
}

.scenario-map-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.scenario-map-head h3 {
  margin-bottom: 6px;
}

.scenario-map-head p {
  color: var(--muted);
}

.scenario-map-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.scenario-map-legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.scenario-map-legend i {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 999px;
}

.legend-btc {
  background: #f7931a;
}

.legend-th {
  background: #24c16b;
}

.legend-token {
  background: #7b5cff;
}

.scenario-chart-wrap {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 17, 23, 0.72);
}

.scenario-chart-wrap canvas {
  display: block;
  width: 100%;
  height: 540px;
}

.investment-result {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.investment-heading h3 {
  margin: 4px 0 8px;
  font-size: 22px;
}

.investment-heading p {
  color: var(--muted);
}

.field-row small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.score-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 17, 23, 0.55);
}

.score-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
}

.score-card h3 {
  margin-bottom: 0;
}

.score-card strong {
  color: var(--accent);
  font-size: 22px;
}

.score-card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.formula-grid article {
  min-height: 220px;
}

.faq details {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 20px 48px;
  color: var(--muted);
}

.site-footer a {
  text-decoration: none;
}

@media (max-width: 860px) {
  main#top {
    background-size: auto 100svh;
    background-position: center top;
  }

  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .brand-logo {
    width: 148px;
  }

  .hero,
  .split-section,
  .feature-grid,
  .tool-hero,
  .tool-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 44px;
  }

  .tool-result {
    position: static;
  }

  .scenario-map-head {
    flex-direction: column;
  }

  .scenario-map-legend {
    justify-content: flex-start;
  }

  .scenario-chart-wrap canvas {
    height: 420px;
  }
}