:root {
  color-scheme: light;
  --bg: #f4ede3;
  --bg-accent: #e8dfd0;
  --surface: rgba(255, 251, 245, 0.92);
  --surface-strong: rgba(255, 255, 255, 0.98);
  --surface-soft: rgba(255, 246, 235, 0.88);
  --surface-dark: #111827;
  --surface-dark-strong: #182131;
  --text: #161616;
  --muted: #5f574d;
  --muted-dark: #b8b2a5;
  --line: rgba(71, 50, 18, 0.12);
  --line-strong: rgba(71, 50, 18, 0.22);
  --accent: #efb56f;
  --accent-strong: #a15f16;
  --accent-dark: #ffd7a4;
  --shadow: 0 18px 42px rgba(22, 18, 14, 0.09);
  --font-sans: "DM Sans", sans-serif;
  --font-serif: "DM Serif Display", serif;
  --font-mono: "JetBrains Mono", monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0f1b;
  --bg-accent: #111827;
  --surface: rgba(17, 24, 39, 0.9);
  --surface-strong: rgba(13, 19, 33, 0.96);
  --surface-soft: rgba(22, 31, 49, 0.94);
  --text: #f6f1e7;
  --muted: #c0b7aa;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #efb56f;
  --accent-strong: #ffd39a;
  --accent-dark: #ffd39a;
  --shadow: 0 22px 48px rgba(0, 0, 0, 0.34);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(239, 181, 111, 0.13), transparent 24%),
    radial-gradient(circle at top right, rgba(56, 189, 248, 0.06), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 20%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.page-shell {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

.page-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.18), transparent 60%);
  opacity: 0.55;
}

.container {
  width: min(1184px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: rgba(244, 237, 227, 0.76);
  border-bottom: 1px solid var(--line);
}

:root[data-theme="dark"] .site-header {
  background: rgba(11, 15, 27, 0.72);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.brand-mark-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.brand-mark-icon-dark {
  display: none;
}

:root[data-theme="dark"] .brand-mark-icon-light {
  display: none;
}

:root[data-theme="dark"] .brand-mark-icon-dark {
  display: block;
}

.brand-text,
.footer-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.top-nav,
.footer-links,
.hero-actions,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.top-nav a,
.footer-links a {
  color: var(--muted);
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

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

.theme-toggle,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--text);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.theme-toggle:hover,
.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
}

.theme-toggle {
  gap: 10px;
  min-width: 156px;
}

.theme-toggle-copy,
.theme-toggle-state {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.button-primary {
  border-color: rgba(239, 181, 111, 0.42);
  background: linear-gradient(180deg, rgba(255, 245, 231, 0.98), rgba(255, 255, 255, 1));
  color: #4b2f11;
}

.button-secondary,
.button-ghost {
  background: var(--surface-soft);
}

.button-disabled {
  opacity: 0.7;
  cursor: default;
}

.hero-section {
  padding: 56px 0 24px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 22px;
  align-items: stretch;
}

.panel,
.product-card,
.scenario-card,
.why-card {
  border: 1px solid var(--line);
  border-radius: 30px;
  box-shadow: var(--shadow);
}

.panel-light,
.product-card,
.scenario-card,
.why-card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-strong) 100%);
}

.panel-dark {
  color: #f6f1e7;
  background:
    radial-gradient(circle at top right, rgba(239, 181, 111, 0.14), transparent 35%),
    linear-gradient(180deg, #182131 0%, #101726 100%);
}

.hero-copy {
  padding: 34px;
}

.hero-aside {
  padding: 28px;
  display: grid;
  align-content: start;
  gap: 18px;
}

.eyebrow,
.planner-kicker,
.summary-label,
.product-badge,
.scenario-label {
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.panel-dark .planner-kicker,
.panel-dark .summary-label,
.panel-dark .product-badge,
.panel-dark .scenario-label,
.panel-dark .eyebrow {
  color: var(--accent-dark);
}

h1,
.section-title,
.hero-aside-title,
.roadmap-copy h3,
.scenario-card h3,
.why-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  line-height: 0.98;
}

h1 {
  margin-top: 12px;
  font-size: clamp(3rem, 5vw, 5.2rem);
  max-width: 11ch;
}

.hero-aside-title {
  font-size: clamp(2.1rem, 3vw, 3rem);
  max-width: 9ch;
}

.hero-lead,
.hero-aside-copy,
.section-subtitle,
.product-card p,
.scenario-card p,
.why-card p,
.footer-note,
.hero-note p {
  color: var(--muted);
  line-height: 1.72;
}

.panel-dark .hero-aside-copy,
.panel-dark .hero-note p {
  color: var(--muted-dark);
}

.hero-lead {
  font-size: 1.06rem;
  max-width: 58ch;
  margin-top: 18px;
}

.hero-summary,
.product-grid,
.scenario-grid,
.why-shell {
  display: grid;
  gap: 14px;
}

.hero-summary {
  margin-top: 28px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-card {
  padding: 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.summary-card strong {
  display: block;
  margin-top: 8px;
  line-height: 1.55;
}

.panel-topline,
.console-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-topline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, 0.72);
}

.console-block {
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 12, 20, 0.34);
}

.console-row {
  padding: 14px 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
}

.console-row span {
  width: 34px;
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
}

.console-row strong {
  flex: 1;
  font-size: 1rem;
}

.console-row em {
  max-width: 20ch;
  color: rgba(246, 241, 231, 0.68);
  font-style: normal;
  text-align: right;
  font-size: 0.9rem;
}

.hero-note {
  padding: 16px 18px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.section {
  padding: 24px 0 54px;
}

.section-soft {
  position: relative;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 24px;
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(2.1rem, 3vw, 3.2rem);
}

.section-subtitle {
  margin: 0;
  align-self: end;
}

.product-grid {
  grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 1fr));
}

.product-card,
.scenario-card,
.why-card {
  padding: 24px;
}

.product-card-featured {
  background:
    radial-gradient(circle at top right, rgba(239, 181, 111, 0.09), transparent 30%),
    linear-gradient(180deg, var(--surface) 0%, var(--surface-strong) 100%);
}

.product-card-head {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.product-card strong,
.scenario-card h3,
.why-card h3 {
  font-size: 1.22rem;
}

.product-card p,
.scenario-card p,
.why-card p {
  margin: 0;
}

.product-list {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.roadmap-strip {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
  gap: 18px;
  margin-top: 16px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 251, 245, 0.86), rgba(255, 247, 238, 0.96));
}

:root[data-theme="dark"] .roadmap-strip {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.92), rgba(12, 18, 29, 0.98));
}

.roadmap-copy h3 {
  margin-top: 8px;
  font-size: clamp(1.5rem, 2vw, 2rem);
}

.roadmap-tags {
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  justify-content: flex-end;
  gap: 10px;
}

.roadmap-tags span {
  padding: 11px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.scenario-grid,
.why-shell {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.scenario-card {
  display: grid;
  gap: 12px;
}

.scenario-card h3 {
  max-width: 15ch;
}

.section-why {
  padding-top: 12px;
}

.why-card {
  display: grid;
  gap: 12px;
}

.site-footer {
  padding: 0 0 48px;
}

.footer-layout {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .hero-grid,
  .section-head,
  .product-grid,
  .scenario-grid,
  .why-shell,
  .roadmap-strip {
    grid-template-columns: 1fr;
  }

  .hero-summary {
    grid-template-columns: 1fr;
  }

  .roadmap-tags {
    justify-content: flex-start;
  }
}

@media (max-width: 820px) {
  .container {
    width: min(100% - 28px, 1184px);
  }

  .site-nav {
    flex-wrap: wrap;
    padding: 14px 0 16px;
  }

  .top-nav {
    order: 3;
    width: 100%;
  }

  .hero-copy,
  .hero-aside,
  .product-card,
  .scenario-card,
  .why-card {
    padding: 22px;
  }

  h1 {
    max-width: none;
  }

  .console-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .console-row em {
    max-width: none;
    text-align: left;
  }
}