/* Anvil — cartoonish forge-themed design */

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

/* ===== Design tokens ===== */

:root {
  --bg-body: #fff8f0;
  --bg-card: #ffffff;
  --bg-mint: #e4ffd4;
  --bg-lavender: #f0eaff;
  --bg-peach: #fff0e0;
  --bg-ink: #1a1a1a;
  --bg-code: #faf8f4;
  --bg-nav: rgba(255, 248, 240, 0.92);
  --bg-nav-mobile: rgba(255, 248, 240, 0.97);

  --text-strong: #1a1a1a;
  --text-body: #333;
  --text-soft: #666;
  --text-faint: #999;
  --text-on-ink: #f5f0ea;

  --stroke: #1a1a1a;
  --stroke-soft: #e0d8d0;

  --brand-red: #dc2626;
  --brand-orange: #ff771c;
  --brand-amber: #fbbf24;

  --shadow: 4px 4px 0 var(--stroke);
  --shadow-sm: 3px 3px 0 var(--stroke);

  --hl-key: #0369a1;
  --hl-str: #166534;
  --hl-lit: #c2410c;
  --hl-ok: #15803d;
  --hl-cmd: #0369a1;

  --max-width: 1100px;
  --nav-height: 64px;
  --radius: 14px;
  --radius-pill: 999px;
}

[data-theme="dark"] {
  --bg-body: #1e1b16;
  --bg-card: #2a2620;
  --bg-mint: #1e3520;
  --bg-lavender: #2e2248;
  --bg-peach: #352a18;
  --bg-ink: #141210;
  --bg-code: #24201a;
  --bg-nav: rgba(30, 27, 22, 0.92);
  --bg-nav-mobile: rgba(30, 27, 22, 0.97);

  --text-strong: #f0ece6;
  --text-body: #d0cbc4;
  --text-soft: #a8a39c;
  --text-faint: #807b74;
  --text-on-ink: #d8d4ce;

  --stroke: #8a8580;
  --stroke-soft: #4a4640;

  --shadow: 4px 4px 0 #0a0906;
  --shadow-sm: 3px 3px 0 #0a0906;

  --hl-key: #7dd3fc;
  --hl-str: #a5d6a7;
  --hl-lit: #ffab91;
  --hl-ok: #4ade80;
  --hl-cmd: #7dd3fc;
}

/* ===== Matrix Theme (Konami easter egg) ===== */

[data-theme="matrix"] {
  --bg-body: transparent;
  --bg-card: rgba(0, 16, 0, 0.88);
  --bg-mint: rgba(0, 22, 0, 0.45);
  --bg-lavender: rgba(0, 16, 6, 0.45);
  --bg-peach: rgba(0, 20, 0, 0.45);
  --bg-ink: rgba(0, 8, 0, 0.92);
  --bg-code: rgba(0, 14, 0, 0.9);
  --bg-nav: rgba(0, 8, 0, 0.92);
  --bg-nav-mobile: rgba(0, 8, 0, 0.95);

  --text-strong: #00ff41;
  --text-body: #00cc33;
  --text-soft: #009925;
  --text-faint: #006618;
  --text-on-ink: #00ff41;

  --stroke: #00aa2e;
  --stroke-soft: #004a12;

  --brand-red: #00ff41;
  --brand-orange: #00ff41;
  --brand-amber: #33ff66;

  --shadow: 4px 4px 0 #003a0e;
  --shadow-sm: 3px 3px 0 #003a0e;

  --hl-key: #33ff66;
  --hl-str: #88ffaa;
  --hl-lit: #55ff77;
  --hl-ok: #00ff41;
  --hl-cmd: #33ff66;
}

[data-theme="matrix"] main,
[data-theme="matrix"] .footer {
  position: relative;
  z-index: 1;
}

[data-theme="matrix"] .nav {
  border-bottom-color: #00aa2e;
}

[data-theme="matrix"] .hero-badge {
  background: rgba(0, 16, 0, 0.88);
}

[data-theme="matrix"] .demo-dot {
  background: #00ff41 !important;
  border-color: #006618;
}

#matrix-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.matrix-dismiss {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  color: #00ff41;
  background: rgba(0, 8, 0, 0.88);
  border: 1.5px solid #00aa2e;
  border-radius: var(--radius-pill);
  padding: 0.4rem 1rem;
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  letter-spacing: 0.04em;
  transition: background 0.15s, color 0.15s;
}

.matrix-dismiss:hover {
  background: #00ff41;
  color: #000a00;
}

/* ===== Base ===== */

html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-body);
  color: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ===== Navigation ===== */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: var(--bg-nav);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--stroke);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
}

/* Logo theme-responsive fills */
.logo-wordmark { fill: var(--text-strong); }
.logo-cutout { fill: var(--bg-body); }
.logo-divider { stroke: var(--stroke-soft); stroke-width: 1; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links a,
.nav-links button {
  font-family: 'Nunito', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-soft);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  transition: background 0.15s, color 0.15s;
}

.nav-links a:hover,
.nav-links button:hover {
  background: var(--stroke);
  color: var(--text-on-ink);
}

.nav-docs { color: var(--brand-orange) !important; }

.nav-github {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-toggle-input { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2.5px;
  background: var(--text-strong);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* ===== Layout ===== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Hero ===== */

.hero {
  padding: calc(var(--nav-height) + 4rem) 0 4rem;
  text-align: center;
  background: var(--bg-body);
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-soft);
  border: 2px solid var(--stroke);
  border-radius: var(--radius-pill);
  padding: 0.3rem 1rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
  background: var(--bg-card);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero-logo { margin-bottom: 1.25rem; }

.hero h1 {
  font-family: 'Gabarito', sans-serif;
  font-weight: 900;
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-strong);
  margin-bottom: 1.25rem;
}

.accent { color: var(--brand-orange); }

.hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--text-soft);
  max-width: 560px;
  margin: 0 auto 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

/* ===== Buttons (cartoon 3D) ===== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Gabarito', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.7rem 1.6rem;
  border: 2px solid var(--stroke);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  text-decoration: none;
}

.btn:hover {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 var(--stroke);
}

.btn:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}

.btn-primary {
  background: var(--brand-orange);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-strong);
}

/* ===== Hero install ===== */

.hero-install {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 2px solid var(--stroke);
  border-radius: var(--radius-pill);
  padding: 0.55rem 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  box-shadow: var(--shadow-sm);
}

.hero-install-prompt {
  color: var(--brand-orange);
  font-weight: 700;
  user-select: none;
}

.hero-install code { color: var(--text-soft); }

.hero-install-copy {
  background: none;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  padding: 2px;
  display: inline-flex;
  transition: color 0.15s;
}

.hero-install-copy:hover { color: var(--text-strong); }

/* ===== Section headings ===== */

.section-title {
  font-family: 'Gabarito', sans-serif;
  font-weight: 900;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
  text-align: center;
  color: var(--text-strong);
  margin-bottom: 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-soft);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto 3rem;
}

/* ===== Features ===== */

.features {
  padding: 5rem 0;
  background: var(--bg-mint);
  border-top: 2px solid var(--stroke);
}

.features .section-title { margin-bottom: 3rem; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--bg-card);
  border: 2px solid var(--stroke);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.feature-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--stroke);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 0.6rem;
}

.feature-card h3 {
  font-family: 'Gabarito', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-strong);
  margin-bottom: 0.4rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.55;
}

/* ===== Demo ===== */

.demo {
  padding: 5rem 0;
  background: var(--bg-body);
  border-top: 2px solid var(--stroke);
}

.demo-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.demo-panel {
  background: var(--bg-code);
  border: 2px solid var(--stroke);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.demo-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border-bottom: 2px solid var(--stroke);
  background: var(--bg-card);
}

.demo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1.5px solid var(--stroke);
}

.demo-filename {
  margin-left: 0.4rem;
  font-family: 'Gabarito', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--text-soft);
}

.demo-code {
  padding: 1.25rem;
  margin: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  line-height: 1.65;
  overflow-x: auto;
  border: none;
  background: transparent;
}

.demo-code code { font-family: inherit; }

/* Syntax */
.hl-key { color: var(--hl-key); }
.hl-str { color: var(--hl-str); }
.hl-lit { color: var(--hl-lit); }
.hl-p { color: var(--text-faint); }
.hl-comment { color: var(--text-faint); font-style: italic; }
.hl-prompt { color: var(--brand-orange); font-weight: 700; user-select: none; }
.hl-cmd { color: var(--hl-cmd); font-weight: 600; }
.hl-ok { color: var(--hl-ok); }
.hl-muted { color: var(--text-faint); }
.hl-bold { font-weight: 700; }

/* ===== Install ===== */

.install {
  padding: 5rem 0;
  background: var(--bg-lavender);
  border-top: 2px solid var(--stroke);
}

.install-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2.5rem;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.install-card {
  position: relative;
  background: var(--bg-card);
  border: 2px solid var(--stroke);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.install-card-badge {
  position: absolute;
  top: -0.6rem;
  left: 1.25rem;
  background: var(--brand-orange);
  color: #fff;
  font-family: 'Gabarito', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 2px solid var(--stroke);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.install-card h3 {
  font-family: 'Gabarito', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-strong);
  margin-bottom: 0.35rem;
}

.install-card p {
  font-size: 0.875rem;
  color: var(--text-soft);
  margin-bottom: 1rem;
  flex-grow: 1;
}

.install-code {
  background: var(--bg-code);
  border: 2px solid var(--stroke);
  border-radius: 10px;
  padding: 0.7rem 1rem;
  margin: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  line-height: 1.55;
  overflow-x: auto;
  overflow-wrap: break-word;
  white-space: pre-wrap;
}

/* Shell tabs */

.shell-tabs {
  display: flex;
  gap: 0;
  margin-bottom: -2px;
  position: relative;
  z-index: 1;
}

.shell-tab {
  font-family: 'Gabarito', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border: 2px solid var(--stroke);
  background: var(--bg-code);
  color: var(--text-faint);
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
  border-bottom: none;
}

.shell-tab:first-child { border-radius: 8px 0 0 0; }
.shell-tab:last-child { border-radius: 0 8px 0 0; }
.shell-tab:not(:first-child) { border-left: none; }

.shell-tab.active {
  background: var(--bg-card);
  color: var(--text-strong);
}

.shell-panel { display: none; }
.shell-panel.active { display: block; }

.shell-tabs + .shell-panel,
.shell-tabs ~ .shell-panel {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.install-code code {
  font-family: inherit;
  color: var(--text-soft);
}

/* ===== Support ===== */

.support {
  padding: 5rem 0;
  background: var(--bg-peach);
  border-top: 2px solid var(--stroke);
}

.support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 2.5rem;
}

.support-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 1.25rem;
  border: 2px solid var(--stroke);
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  font-family: 'Gabarito', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-strong);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.1s, box-shadow 0.1s;
}

.support-link:hover {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 var(--stroke);
}

.support-link:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}

.support-link svg {
  color: var(--text-faint);
  transition: color 0.15s;
}

.support-link:hover svg { color: var(--brand-orange); }

.support-link--secondary {
  background: transparent;
  border-color: var(--stroke-soft);
  box-shadow: none;
  color: var(--text-soft);
  font-size: 0.825rem;
}

.support-link--secondary:hover {
  border-color: var(--stroke);
  background: var(--bg-card);
  color: var(--text-strong);
  box-shadow: var(--shadow-sm);
}

/* ===== CTA ===== */

.cta {
  padding: 5rem 0;
  text-align: center;
  background: var(--bg-ink);
  border-top: 2px solid var(--stroke);
}

.cta .section-title { color: var(--text-on-ink); }
.cta .accent { color: var(--brand-amber); }

/* ===== Footer ===== */

.footer {
  background: var(--bg-ink);
  padding: 2rem 0;
  border-top: 2px solid var(--stroke);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Gabarito', sans-serif;
  font-weight: 900;
  font-size: 0.95rem;
  color: var(--text-on-ink);
}

.footer-links { display: flex; gap: 1.25rem; flex-wrap: wrap; }

.footer-links a {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-on-ink);
  opacity: 0.6;
  transition: opacity 0.15s;
}

.footer-links a:hover { opacity: 1; }

.footer-sep { color: var(--text-on-ink); opacity: 0.3; user-select: none; }

.footer-license {
  font-size: 0.75rem;
  color: var(--text-on-ink);
  opacity: 0.4;
}

/* ===== Theme toggle ===== */

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-soft);
  cursor: pointer;
  padding: 0.35rem 0.75rem;
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  transition: background 0.15s, color 0.15s;
}

.theme-toggle:hover {
  background: var(--stroke);
  color: var(--text-on-ink);
}

[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }

/* ===== Responsive ===== */

@media (max-width: 900px) {
  .demo-panels { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    flex-direction: column;
    background: var(--bg-nav-mobile);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 1.5rem;
    gap: 0.5rem;
    border-bottom: 2px solid var(--stroke);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .nav-toggle-input:checked ~ .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle-input:checked ~ .nav-toggle span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .nav-toggle-input:checked ~ .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav-toggle-input:checked ~ .nav-toggle span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

  .nav-links a { font-size: 1rem; }

  .hero { padding-top: calc(var(--nav-height) + 2.5rem); padding-bottom: 3rem; }
  .hero-subtitle br { display: none; }
  .features, .demo, .install, .support { padding: 3.5rem 0; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}