/* ===== Greedy Little Crumbs — design tokens + components =====
   Palette: cream/white forward (Hui Ying's preference), deep cocoa ink,
   a quiet matcha green accent, and a warm caramel highlight. */

:root {
  /* --- Colour (light / default) --- */
  --cream-50:  oklch(98.5% 0.012 85);   /* paper white, warm */
  --cream-100: oklch(96.8% 0.020 85);   /* page surface */
  --cream-200: oklch(94.0% 0.028 85);   /* card surface */
  --cream-300: oklch(89.0% 0.034 82);   /* subtle border */
  --cream-400: oklch(80.0% 0.040 80);   /* muted divider */

  --ink-900: oklch(22.0% 0.035 55);     /* primary text — deep cocoa */
  --ink-700: oklch(32.0% 0.040 55);     /* headings */
  --ink-500: oklch(45.0% 0.030 55);     /* body muted */
  --ink-400: oklch(58.0% 0.020 60);     /* secondary text */

  --matcha-600: oklch(58.0% 0.110 145); /* matcha accent */
  --matcha-500: oklch(66.0% 0.120 145);
  --matcha-100: oklch(93.0% 0.040 145);

  --caramel-500: oklch(70.0% 0.120 62); /* secondary warm accent */

  /* Role tokens */
  --bg:            var(--cream-50);
  --surface:       var(--cream-100);
  --surface-alt:   var(--cream-200);
  --border:        color-mix(in oklch, var(--ink-900) 10%, transparent);
  --border-strong: color-mix(in oklch, var(--ink-900) 18%, transparent);
  --text:          var(--ink-900);
  --text-muted:    var(--ink-500);
  --text-soft:     var(--ink-400);
  --accent:        var(--matcha-600);
  --accent-soft:   var(--matcha-100);
  --on-accent:     var(--cream-50);
  --ink:           var(--ink-900); /* for skip link */

  /* --- Type scale (fluid clamps) --- */
  --text-xs:   clamp(11px, 0.72rem + 0.05vw, 12px);
  --text-sm:   clamp(13px, 0.82rem + 0.1vw, 14px);
  --text-base: clamp(15px, 0.95rem + 0.1vw, 17px);
  --text-lg:   clamp(18px, 1.08rem + 0.2vw, 20px);
  --text-xl:   clamp(22px, 1.25rem + 0.5vw, 26px);
  --text-2xl:  clamp(28px, 1.6rem + 1vw, 38px);
  --text-3xl:  clamp(38px, 2.2rem + 2.2vw, 60px);
  --text-hero: clamp(44px, 2.4rem + 3.8vw, 84px);

  /* --- Fonts --- */
  --font-display: 'Instrument Serif', 'Cormorant Garamond', Georgia, serif;
  --font-body:    'General Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* --- Spacing (4px grid) --- */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px;
  --space-4: 16px; --space-5: 20px; --space-6: 24px;
  --space-8: 32px; --space-10: 40px; --space-12: 48px;
  --space-16: 64px; --space-20: 80px; --space-24: 96px;
  --space-32: 128px;

  /* --- Radius + shadow --- */
  --r-sm: 6px; --r-md: 10px; --r-lg: 16px; --r-xl: 24px; --r-2xl: 32px;
  --shadow-sm: 0 1px 2px oklch(22% 0.035 55 / 0.06);
  --shadow-md: 0 6px 18px oklch(22% 0.035 55 / 0.08);
  --shadow-lg: 0 20px 50px oklch(22% 0.035 55 / 0.14);

  /* --- Layout --- */
  --container: min(1200px, 92vw);
  --gutter: clamp(20px, 4vw, 48px);

  /* --- Motion --- */
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ===== Dark mode — warm espresso, not generic dark ===== */
[data-theme='dark'] {
  --bg:            oklch(16.0% 0.020 55);
  --surface:       oklch(20.0% 0.022 55);
  --surface-alt:   oklch(24.0% 0.024 55);
  --border:        color-mix(in oklch, var(--cream-50) 14%, transparent);
  --border-strong: color-mix(in oklch, var(--cream-50) 24%, transparent);
  --text:          oklch(95.0% 0.018 85);
  --text-muted:    oklch(78.0% 0.020 80);
  --text-soft:     oklch(66.0% 0.020 80);
  --accent:        oklch(78.0% 0.120 145);
  --accent-soft:   oklch(30.0% 0.060 145);
  --on-accent:     oklch(18.0% 0.030 145);
  --shadow-sm: 0 1px 2px #0006;
  --shadow-md: 0 10px 28px #0007;
  --shadow-lg: 0 26px 60px #0009;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  transition: background 400ms var(--ease), color 400ms var(--ease);
}

/* ===== Typography primitives ===== */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-hero);
  line-height: 0.98;
  letter-spacing: -0.015em;
  color: var(--ink-700);
}
[data-theme='dark'] .display { color: var(--text); }
.display em { font-style: italic; color: var(--accent); font-weight: 400; }

.display-md {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-3xl);
  line-height: 1.02;
  letter-spacing: -0.012em;
  color: var(--ink-700);
}
[data-theme='dark'] .display-md { color: var(--text); }

h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-xl);
  line-height: 1.1;
  letter-spacing: -0.005em;
  color: var(--ink-700);
}
[data-theme='dark'] h3 { color: var(--text); }

h4 {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-soft);
}

p {
  color: var(--text-muted);
  max-width: 62ch;
}
[data-theme='dark'] p { color: var(--text-muted); }

.lede {
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--ink-500);
  max-width: 46ch;
}
[data-theme='dark'] .lede { color: var(--text-muted); }

.eyebrow,
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.on-dark { color: var(--cream-50) !important; }
.signup .on-dark { color: oklch(96% 0.020 85) !important; }

/* ===== Buttons + links ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 500;
  font-size: var(--text-sm);
  letter-spacing: 0.01em;
  transition: transform 200ms var(--ease), background 200ms var(--ease), color 200ms var(--ease), box-shadow 200ms var(--ease);
  white-space: nowrap;
}
.btn-lg { padding: 14px 28px; font-size: var(--text-base); }
.btn-primary {
  background: var(--ink-900);
  color: var(--cream-50);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost {
  color: var(--text);
  border: 1px solid var(--border-strong);
  background: transparent;
}
.btn-ghost:hover { background: var(--surface-alt); }
[data-theme='dark'] .btn-primary { background: var(--cream-50); color: var(--ink-900); }

.link {
  color: var(--ink-700);
  font-weight: 500;
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 2px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}
.link:hover { color: var(--accent); border-color: var(--accent); }
[data-theme='dark'] .link { color: var(--text); }

/* ===== Pre-launch banner ===== */
.prelaunch-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px var(--gutter);
  background: var(--ink-900);
  color: var(--cream-50);
  font-size: var(--text-sm);
  text-align: center;
  letter-spacing: 0.01em;
}
[data-theme='dark'] .prelaunch-banner {
  background: oklch(12% 0.020 55);
  border-bottom: 1px solid color-mix(in oklch, var(--cream-50) 10%, transparent);
}
.prelaunch-banner strong {
  font-weight: 600;
  color: var(--cream-50);
}
.prelaunch-banner a {
  color: var(--cream-50);
  border-bottom: 1px solid color-mix(in oklch, var(--cream-50) 50%, transparent);
  padding-bottom: 1px;
  transition: border-color 200ms var(--ease);
}
.prelaunch-banner a:hover { border-color: var(--cream-50); }
.prelaunch-dot {
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--matcha-500);
  box-shadow: 0 0 0 4px color-mix(in oklch, var(--matcha-500) 28%, transparent);
  flex: 0 0 auto;
  animation: prelaunch-pulse 2.4s ease-in-out infinite;
}
@keyframes prelaunch-pulse {
  0%, 100% { box-shadow: 0 0 0 4px color-mix(in oklch, var(--matcha-500) 28%, transparent); }
  50%      { box-shadow: 0 0 0 7px color-mix(in oklch, var(--matcha-500) 14%, transparent); }
}
@media (prefers-reduced-motion: reduce) {
  .prelaunch-dot { animation: none; }
}

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center;
  gap: var(--space-6);
  padding: 14px var(--gutter);
  background: color-mix(in oklch, var(--bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(16px);
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: inline-flex; align-items: center; gap: var(--space-3);
  color: var(--ink-900);
}
[data-theme='dark'] .brand { color: var(--text); }
.logo-mark { width: 32px; height: 32px; color: currentColor; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: -0.005em;
}
.brand-tag {
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-top: 4px;
}
.site-nav {
  margin-left: auto;
  display: flex; gap: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.site-nav a {
  padding: 8px 2px;
  border-bottom: 1px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}
.site-nav a:hover { color: var(--text); border-color: var(--border-strong); }
.header-actions { display: flex; align-items: center; gap: var(--space-3); }
.theme-toggle {
  width: 38px; height: 38px;
  display: inline-grid; place-items: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: background 200ms var(--ease), color 200ms var(--ease);
}
.theme-toggle:hover { background: var(--surface-alt); color: var(--text); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .ic-moon { display: none; }
[data-theme='dark'] .theme-toggle .ic-sun { display: none; }
[data-theme='dark'] .theme-toggle .ic-moon { display: block; }

/* ===== Hero ===== */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: center;
  padding: clamp(40px, 7vw, 96px) var(--gutter) clamp(48px, 8vw, 120px);
  max-width: var(--container);
  margin: 0 auto;
}
.hero-copy { display: flex; flex-direction: column; gap: var(--space-6); }
.hero-copy .eyebrow { margin-bottom: -8px; }
.hero-cta {
  display: flex; flex-wrap: wrap; gap: var(--space-3);
  margin-top: var(--space-2);
}
.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}
.hero-meta li {
  display: flex; flex-direction: column; gap: 4px;
  font-size: var(--text-sm);
}
.hero-meta strong {
  font-weight: 500;
  color: var(--text);
  font-family: var(--font-body);
}
.hero-meta span { color: var(--text-soft); }

.hero-media {
  position: relative;
  border-radius: var(--r-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 5;
  background: var(--surface-alt);
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media figcaption {
  position: absolute; left: 16px; bottom: 16px; right: 16px;
  font-size: var(--text-xs);
  color: var(--cream-50);
  letter-spacing: 0.04em;
  background: color-mix(in oklch, oklch(20% 0.03 55) 70%, transparent);
  padding: 8px 12px;
  border-radius: var(--r-sm);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* ===== Story ===== */
.story {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: center;
  padding: clamp(40px, 6vw, 96px) var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.story-text { display: flex; flex-direction: column; gap: var(--space-5); }
.story-media {
  border-radius: var(--r-2xl);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  box-shadow: var(--shadow-md);
  background: var(--surface-alt);
}
.story-media img { width: 100%; height: 100%; object-fit: cover; }

/* ===== Section head ===== */
.section-head {
  text-align: center;
  display: flex; flex-direction: column; align-items: center;
  gap: var(--space-4);
  margin: 0 auto clamp(32px, 5vw, 64px);
  max-width: 640px;
}
.section-head p:not(.section-eyebrow) {
  color: var(--text-muted);
  text-align: center;
}
.section-sub { text-align: center; }

/* ===== Menu ===== */
.menu {
  padding: clamp(48px, 7vw, 112px) var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.menu-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.4vw, 32px);
}
.product {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 300ms var(--ease), box-shadow 300ms var(--ease);
}
.product:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.product-media { aspect-ratio: 4 / 5; overflow: hidden; background: var(--surface-alt); }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 500ms var(--ease); }
.product:hover .product-media img { transform: scale(1.03); }
.product-body {
  padding: var(--space-6);
  display: flex; flex-direction: column;
  gap: var(--space-4);
  flex: 1;
}
.price-list {
  display: flex; flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-top: auto;
}
.price-list > div {
  display: flex; justify-content: space-between;
  font-size: var(--text-sm);
}
.price-list dt { color: var(--text-soft); }
.price-list dd { color: var(--text); font-weight: 500; font-variant-numeric: tabular-nums; }

.product-meta {
  margin-top: auto;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-size: var(--text-sm);
  color: var(--text-soft);
  letter-spacing: 0.01em;
}

/* ===== Order ===== */
.order {
  padding: clamp(48px, 7vw, 112px) var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}
.steps li {
  display: flex; flex-direction: column; gap: var(--space-3);
  padding: var(--space-8) var(--space-6);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
}
.step-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--accent);
  line-height: 1;
}
.order-note {
  text-align: center;
  max-width: 56ch;
  margin: clamp(28px, 4vw, 48px) auto 0;
  color: var(--text-muted);
  font-size: var(--text-base);
}
.order-note strong { color: var(--text); font-weight: 500; }
.order-cta {
  display: flex; justify-content: center; gap: var(--space-3);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

/* ===== FAQ ===== */
.faq {
  padding: clamp(48px, 7vw, 112px) var(--gutter);
  max-width: 860px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.faq-list {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--border);
}
.faq-list details {
  border-bottom: 1px solid var(--border);
  padding: var(--space-5) 0;
}
.faq-list summary {
  display: flex; justify-content: space-between; align-items: center;
  gap: var(--space-4);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--ink-700);
  transition: color 200ms var(--ease);
}
[data-theme='dark'] .faq-list summary { color: var(--text); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: '';
  width: 14px; height: 14px;
  background:
    linear-gradient(currentColor, currentColor) center / 14px 1.5px no-repeat,
    linear-gradient(currentColor, currentColor) center / 1.5px 14px no-repeat;
  color: var(--text-muted);
  transition: transform 250ms var(--ease);
  flex: 0 0 auto;
}
.faq-list details[open] summary::after {
  background:
    linear-gradient(currentColor, currentColor) center / 14px 1.5px no-repeat;
}
.faq-list details p {
  margin-top: var(--space-3);
  color: var(--text-muted);
  max-width: 64ch;
}

/* ===== Signup (warm dark band) ===== */
.signup {
  background: var(--ink-900);
  color: var(--cream-50);
  margin-top: clamp(48px, 7vw, 96px);
}
[data-theme='dark'] .signup { background: oklch(12% 0.020 55); }
.signup-inner {
  max-width: 780px;
  margin: 0 auto;
  padding: clamp(56px, 8vw, 112px) var(--gutter);
  text-align: center;
  display: flex; flex-direction: column; align-items: center;
  gap: var(--space-5);
}
.signup .section-eyebrow { color: color-mix(in oklch, var(--cream-50) 70%, transparent); }
.signup .eyebrow .dot { box-shadow: 0 0 0 4px color-mix(in oklch, var(--accent) 24%, transparent); }
.signup p { color: color-mix(in oklch, var(--cream-50) 78%, transparent); max-width: 48ch; text-align: center; }
.signup-form {
  display: flex; gap: var(--space-2);
  width: 100%; max-width: 480px;
  margin-top: var(--space-3);
  padding: 6px;
  background: color-mix(in oklch, var(--cream-50) 10%, transparent);
  border: 1px solid color-mix(in oklch, var(--cream-50) 22%, transparent);
  border-radius: 999px;
}
.signup-form input {
  flex: 1;
  padding: 10px 18px;
  background: transparent;
  border: 0;
  color: var(--cream-50);
  font-size: var(--text-base);
}
.signup-form input::placeholder { color: color-mix(in oklch, var(--cream-50) 60%, transparent); }
.signup-form .btn-primary {
  background: var(--cream-50);
  color: var(--ink-900);
}
.signup-form .btn-primary:disabled { opacity: 0.6; cursor: progress; }

.signup-status {
  min-height: 1.4em;
  margin: var(--space-3) 0 0;
  font-size: 0.95rem;
  color: color-mix(in oklch, var(--cream-50) 75%, transparent);
  transition: color 0.2s ease;
  text-align: center;
}
.signup-status[data-kind="success"] { color: #cfe5c8; }
.signup-status[data-kind="error"] { color: #f6c9b5; }
.signup-status[data-kind="info"] { color: color-mix(in oklch, var(--cream-50) 80%, transparent); }

/* ===== Footer ===== */
.site-footer {
  padding: clamp(48px, 6vw, 80px) var(--gutter) var(--space-8);
  max-width: var(--container);
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--border);
}
.footer-brand { margin-bottom: var(--space-3); color: var(--text); }
.footer-tag { color: var(--text-soft); font-size: var(--text-sm); }
.footer-links {
  display: flex; flex-direction: column; gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.footer-links a { border-bottom: 1px solid transparent; transition: border-color 200ms var(--ease); }
.footer-links a:hover { border-color: var(--border-strong); }
.footer-bottom {
  display: flex; justify-content: space-between;
  padding-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--text-soft);
  letter-spacing: 0.04em;
  flex-wrap: wrap; gap: var(--space-3);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .site-nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-media { aspect-ratio: 4 / 5; max-height: 640px; }
  .story { grid-template-columns: 1fr; }
  .menu-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .hero-meta { grid-template-columns: 1fr 1fr; }
  .hero-meta li:last-child { grid-column: span 2; }
  .menu-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .signup-form { flex-direction: column; border-radius: var(--r-xl); padding: var(--space-3); }
  .signup-form input { text-align: center; }
  .signup-form .btn-primary { justify-content: center; }
}