/* ── bases homepage — design tokens ─────────────────────────────────────── */

:root {
  --bg:             #f7f4ee;
  --surface:        #f0ece2;
  --surface-raised: #fdfcf8;
  --text:           #1a1814;
  --text-muted:     #6b6459;
  --text-faint:     #a89e91;
  --border:         #e0d9ce;
  --border-strong:  #c8bfb2;
  --accent:         #2a5f4f;
  --accent-deep:    #1e4438;
  --accent-bg:      color-mix(in srgb, #2a5f4f 8%, transparent);
  --amber:          #b35800;
  --radius:         3px;
  --radius-lg:      4px;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'DM Mono', 'Fira Mono', monospace;
  --font-brand:   'Outfit', system-ui, sans-serif;

  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;
}

[data-theme="dark"] {
  --bg:             #141210;
  --surface:        #1e1c19;
  --surface-raised: #252320;
  --text:           #ede8de;
  --text-muted:     #9c9286;
  --text-faint:     #5c5650;
  --border:         #2e2b27;
  --border-strong:  #3d3a35;
  --accent:         #4a8c78;
  --accent-deep:    #5fa090;
  --accent-bg:      color-mix(in srgb, #4a8c78 10%, transparent);
  --amber:          #c87c30;
}

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

html {
  font-size: 106.25%;
  scroll-behavior: smooth;
}
@media (min-width: 768px)  { html { font-size: 112.5%; } }
@media (min-width: 1200px) { html { font-size: 118.75%; } }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

html.theme-transitioning,
html.theme-transitioning * {
  transition: background-color 0.22s ease, color 0.22s ease,
              border-color 0.22s ease, box-shadow 0.22s ease !important;
}

/* ── Nav ────────────────────────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-8);
  transition: background 0.2s ease, border-color 0.2s ease, backdrop-filter 0.2s ease;
  border-bottom: 1px solid transparent;
}
.site-nav.scrolled {
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
}
.brand-mark {
  display: inline-block;
  width: 0.7em;
  height: 0.7em;
  background: var(--amber);
  border-radius: var(--radius);
  flex-shrink: 0;
}
[data-theme="dark"] .brand-mark { background: white; }

/* ── Theme toggle ───────────────────────────────────────────────────────── */
.btn-theme {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-3);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.btn-theme:hover { border-color: var(--border-strong); color: var(--text); }

.icon-sun, .icon-moon { display: none; }
:root:not([data-theme="dark"]) .icon-sun  { display: block; }
:root:not([data-theme="dark"]) .theme-label-light { display: inline; }
:root:not([data-theme="dark"]) .theme-label-dark  { display: none; }
[data-theme="dark"] .icon-moon { display: block; }
[data-theme="dark"] .theme-label-dark  { display: inline; }
[data-theme="dark"] .theme-label-light { display: none; }
.theme-label-light, .theme-label-dark { display: none; }

/* ── Layout helpers ─────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 var(--sp-8);
}
.container--narrow {
  max-width: 52rem;
}

/* ── Section spacing ────────────────────────────────────────────────────── */
section { padding: var(--sp-32) 0; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: var(--sp-6);
}
.section-label--accent { color: var(--accent); }

/* ── Hero ───────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 5rem;
  position: relative;
  overflow: hidden;
  background-image:
    linear-gradient(color-mix(in srgb, var(--border) 30%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--border) 30%, transparent) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Fade grid at bottom */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 30%;
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-6);
}

.hero-heading {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--text);
  max-width: 14em;
  margin-bottom: var(--sp-8);
}
.hero-heading em {
  font-style: italic;
  font-weight: 300;
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--text-muted);
  max-width: 38em;
  line-height: 1.7;
  margin-bottom: var(--sp-10);
}

.hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  text-decoration: none;
  position: absolute;
  bottom: var(--sp-10);
  left: var(--sp-8);
  z-index: 1;
}
@keyframes bounce-down {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(4px); }
}
.hero-scroll svg { animation: bounce-down 2s ease-in-out infinite; }

/* ── Intro / pull quote ─────────────────────────────────────────────────── */
.intro {
  border-top: 1px solid var(--border);
}
.intro-quote {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--text);
  max-width: 28em;
}
.intro-quote strong {
  font-style: normal;
  font-weight: 400;
  color: var(--accent);
}

/* ── How it works ───────────────────────────────────────────────────────── */
.how {
  border-top: 1px solid var(--border);
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: var(--sp-12) var(--sp-8);
  margin-top: var(--sp-12);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  margin-bottom: var(--sp-4);
}
.step-heading {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: var(--sp-3);
}
.step-body {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Code block ─────────────────────────────────────────────────────────── */
.code-block {
  margin-top: var(--sp-6);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.code-block-header {
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.code-block-filename {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--text-faint);
}
.code-block-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}
.code-block pre {
  padding: var(--sp-5);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.8;
  color: var(--text-muted);
  overflow-x: auto;
}
.code-block pre .hl { color: var(--text); }
.code-block pre .cm { color: var(--text-faint); font-style: italic; }
.code-block pre .kw { color: var(--accent); }

/* ── Features ───────────────────────────────────────────────────────────── */
.features {
  border-top: 1px solid var(--border);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 0;
  margin-top: var(--sp-12);
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.feature {
  padding: var(--sp-8);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.feature-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-3);
}
.feature-heading {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: var(--sp-2);
}
.feature-body {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Install CTA ────────────────────────────────────────────────────────── */
.install {
  border-top: 1px solid var(--border);
}
.install-heading {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 300;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: var(--sp-6);
}
.install-heading em { font-style: italic; }

.install-cmd {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-4) var(--sp-5);
  margin-bottom: var(--sp-8);
}
.install-cmd code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text);
}
.install-cmd-copy {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.2rem 0.5rem;
  cursor: pointer;
  transition: border-color 0.12s ease, color 0.12s ease;
}
.install-cmd-copy:hover { border-color: var(--border-strong); color: var(--text-muted); }

.install-note {
  font-size: 0.875rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: var(--sp-10) 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* ── Scroll reveal ──────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── Hero load animation ────────────────────────────────────────────────── */
@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}
.hero-eyebrow { animation: rise 0.6s 0.1s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.hero-heading  { animation: rise 0.6s 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.hero-sub      { animation: rise 0.6s 0.32s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.hero-scroll   { animation: rise 0.6s 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards; }