/* =========================================================
   Zone Forge — Marketing site design system
   Aligned with the in-app brand palette (variables.css):
     primary  emerald       #0E946F (light)  /  #14B07F (dark)
     deep     slate-teal    #264351
     accent   warm amber    #D89A38 (light)  /  #E8B964 (dark)
     tan      agronomy      #AE9A75 (light)  /  #C9B68E (dark)
     surface  parchment     #F5EFE3 / #FFFAF2  (light page / elevated)
     dark     near-black    #0B141A / #16252E  (dark page / elevated)

   Theme switching:
     Light  = :root            (default)
     Dark   = html[data-theme="dark"]
     System = no attribute → uses prefers-color-scheme media query
   ========================================================= */

/* -- LIGHT THEME (default) -- */
:root {
  /* Brand primitives */
  --brand-primary: #0E946F;
  --brand-primary-strong: #0C8262;
  --brand-primary-tint: #28A481;
  --brand-deep: #264351;          /* slate-teal — anchor for hero/footer */
  --brand-deep-dark: #1F3946;
  --brand-accent: #D89A38;        /* warm amber */
  --brand-accent-soft: #DDA64C;
  --brand-tan: #AE9A75;
  --brand-tan-soft: #BBA787;

  /* Page surfaces */
  --color-bg: #F5EFE3;            /* warm parchment page */
  --color-bg-alt: #EAE6DB;        /* slightly darker parchment */
  --color-surface: #FFFAF2;       /* elevated card */
  --color-surface-2: #FFFFFF;     /* hero card */

  /* Always-dark sections (hero, footer) — branded slate-teal */
  --color-section-dark: #264351;
  --color-section-darker: #16252E;
  --color-section-darkest: #0B141A;

  /* Surfaces on dark sections */
  --color-surface-on-dark: #1F3946;
  --color-surface-on-dark-2: #2A4855;

  /* Text */
  --color-ink: #264351;           /* body text */
  --color-ink-2: #0F2630;         /* headings */
  --color-ink-soft: #5A6F77;      /* muted */
  --color-ink-faded: #8C9892;     /* subtle */
  --color-ink-on-dark: #ECE6D7;   /* on dark sections */
  --color-ink-on-dark-soft: #ACAFA6;
  --color-ink-on-dark-faded: #7A8079;

  /* Brand semantic aliases */
  --color-brand: var(--brand-primary);
  --color-brand-strong: var(--brand-deep);
  --color-brand-glow: var(--brand-primary-tint);
  --color-accent: var(--brand-accent);
  --color-accent-soft: var(--brand-accent-soft);
  --color-accent-2: var(--brand-tan);

  /* Data-viz palette (used in the prescription map demo, kept stable across themes) */
  --color-data-red: #B54A3F;
  --color-data-orange: #D96D3F;
  --color-data-yellow: #E2B948;
  --color-data-lime: #9BBF6E;
  --color-data-green: #5B8E60;
  --color-data-blue: #4A8DB7;

  /* Borders */
  --color-border: rgba(38, 67, 81, 0.10);
  --color-border-strong: rgba(38, 67, 81, 0.20);
  --color-border-on-dark: rgba(236, 230, 215, 0.10);
  --color-border-on-dark-strong: rgba(236, 230, 215, 0.20);

  /* Typography */
  --font-display: 'Fraunces', 'Iowan Old Style', 'Georgia', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* Spacing scale */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 24px; --space-6: 32px; --space-7: 48px; --space-8: 64px;
  --space-9: 96px; --space-10: 128px;

  /* Radii */
  --radius-sm: 6px;  --radius-md: 12px;  --radius-lg: 20px;
  --radius-xl: 28px; --radius-pill: 999px;

  /* Shadows — soft, slate-tinted */
  --shadow-sm: 0 1px 2px rgba(38, 67, 81, 0.04), 0 1px 3px rgba(38, 67, 81, 0.06);
  --shadow-md: 0 4px 8px rgba(38, 67, 81, 0.05), 0 8px 24px rgba(38, 67, 81, 0.08);
  --shadow-lg: 0 12px 24px rgba(38, 67, 81, 0.08), 0 24px 48px rgba(38, 67, 81, 0.12);
  --shadow-glow: 0 0 0 1px rgba(14, 148, 111, 0.10), 0 16px 48px rgba(14, 148, 111, 0.18);

  /* Transitions */
  --t-fast: 120ms ease;
  --t-med: 220ms cubic-bezier(0.2, 0.7, 0.2, 1);
  --t-slow: 420ms cubic-bezier(0.2, 0.7, 0.2, 1);
  --t-theme: 260ms ease;

  /* Layout */
  --container-w: 1200px;
  --container-w-narrow: 880px;
  --nav-h: 72px;
}

/* -- DARK THEME (explicit, persisted) -- */
html[data-theme="dark"] {
  --color-bg: #0B141A;
  --color-bg-alt: #122029;
  --color-surface: #16252E;
  --color-surface-2: #264351;

  /* Always-dark sections in dark mode become the deepest tone (with subtle gradient via ::before) */
  --color-section-dark: #050B0F;
  --color-section-darker: #0B141A;
  --color-section-darkest: #050B0F;

  --color-surface-on-dark: #16252E;
  --color-surface-on-dark-2: #1F3946;

  --color-ink: #ECE6D7;
  --color-ink-2: #F8F4E9;
  --color-ink-soft: #ACAFA6;
  --color-ink-faded: #7A8079;
  --color-ink-on-dark: #ECE6D7;
  --color-ink-on-dark-soft: #ACAFA6;
  --color-ink-on-dark-faded: #7A8079;

  --color-brand: #14B07F;
  --color-brand-strong: #5A8A9A;
  --color-brand-glow: #2BBE8E;
  --color-accent: #E8B964;
  --color-accent-soft: #ECC379;
  --color-accent-2: #C9B68E;

  --color-border: rgba(172, 175, 166, 0.12);
  --color-border-strong: rgba(172, 175, 166, 0.22);
  --color-border-on-dark: rgba(236, 230, 215, 0.10);
  --color-border-on-dark-strong: rgba(236, 230, 215, 0.20);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.35), 0 24px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 0 1px rgba(20, 176, 127, 0.20), 0 16px 48px rgba(20, 176, 127, 0.18);
}

/* -- SYSTEM PREFERENCE (only applies if user hasn't explicitly chosen a theme) -- */
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) {
    --color-bg: #0B141A;
    --color-bg-alt: #122029;
    --color-surface: #16252E;
    --color-surface-2: #264351;
    --color-section-dark: #050B0F;
    --color-section-darker: #0B141A;
    --color-section-darkest: #050B0F;
    --color-surface-on-dark: #16252E;
    --color-surface-on-dark-2: #1F3946;
    --color-ink: #ECE6D7;
    --color-ink-2: #F8F4E9;
    --color-ink-soft: #ACAFA6;
    --color-ink-faded: #7A8079;
    --color-brand: #14B07F;
    --color-brand-strong: #5A8A9A;
    --color-brand-glow: #2BBE8E;
    --color-accent: #E8B964;
    --color-accent-soft: #ECC379;
    --color-accent-2: #C9B68E;
    --color-border: rgba(172, 175, 166, 0.12);
    --color-border-strong: rgba(172, 175, 166, 0.22);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.35), 0 24px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 0 1px rgba(20, 176, 127, 0.20), 0 16px 48px rgba(20, 176, 127, 0.18);
  }
}

/* =========================================================
   Base
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-ink);
  font-size: 16px;
  line-height: 1.55;
  font-feature-settings: 'ss01', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background var(--t-theme), color var(--t-theme);
}

img, svg, video { display: block; max-width: 100%; }
a { color: var(--color-brand); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--color-brand-glow); }

::selection { background: var(--color-brand); color: #ffffff; }

/* =========================================================
   Typography
   ========================================================= */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 var(--space-4);
  color: var(--color-ink-2);
}
h1 { font-size: clamp(2.5rem, 5.5vw, 4.5rem); font-weight: 400; letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.4rem, 2.4vw, 1.75rem); }
h4 { font-size: 1.15rem; font-family: var(--font-sans); font-weight: 600; letter-spacing: -0.01em; color: var(--color-ink-2); }

.h-display { font-family: var(--font-display); font-weight: 400; letter-spacing: -0.03em; line-height: 1.05; }
.h-italic { font-style: italic; font-weight: 400; }

p { margin: 0 0 var(--space-4); }
.lede { font-size: 1.2rem; line-height: 1.55; color: var(--color-ink-soft); max-width: 60ch; }
.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-brand);
  margin-bottom: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.eyebrow::before {
  content: '';
  width: 18px; height: 1px;
  background: var(--color-brand);
  display: inline-block;
}

.muted { color: var(--color-ink-soft); }
.mono { font-family: var(--font-mono); font-size: 0.9em; }

/* =========================================================
   Layout
   ========================================================= */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-5);
}
.container-narrow { max-width: var(--container-w-narrow); }

section { padding: var(--space-9) 0; }
section.tight { padding: var(--space-7) 0; }

/* Surface variants */
.bg-cream { background: var(--color-bg); }
.bg-cream-2 { background: var(--color-bg-alt); }

/* "bg-dark" sections always look dark (slate-teal in light mode, near-black in dark mode) */
.bg-dark { background: var(--color-section-dark); color: var(--color-ink-on-dark); }
.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4 { color: var(--color-ink-on-dark); }
.bg-dark .muted, .bg-dark .lede { color: var(--color-ink-on-dark-soft); }
.bg-dark .eyebrow { color: var(--color-accent-soft); }
.bg-dark .eyebrow::before { background: var(--color-accent-soft); }
.bg-dark a { color: var(--color-accent-soft); }
.bg-dark a:hover { color: var(--color-accent); }

/* =========================================================
   Navigation
   ========================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--t-theme), border-color var(--t-theme);
}
.nav.dark {
  background: color-mix(in srgb, var(--color-section-dark) 82%, transparent);
  border-bottom-color: var(--color-border-on-dark);
  color: var(--color-ink-on-dark);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-5);
  gap: var(--space-5);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--color-ink-2);
}
.brand:hover { color: var(--color-brand); }
.nav.dark .brand { color: var(--color-ink-on-dark); }
.brand-mark {
  width: 32px; height: 32px;
  display: inline-flex;
  align-items: center; justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  color: var(--color-ink);
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--color-brand); }
.nav.dark .nav-links a { color: var(--color-ink-on-dark-soft); }
.nav.dark .nav-links a:hover { color: var(--color-ink-on-dark); }
.nav-links a.active { color: var(--color-brand); }
.nav.dark .nav-links a.active { color: var(--color-accent-soft); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Theme toggle button */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border: 1px solid var(--color-border-strong);
  background: transparent;
  border-radius: var(--radius-pill);
  color: var(--color-ink);
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
  padding: 0;
}
.theme-toggle:hover {
  background: color-mix(in srgb, var(--color-ink) 8%, transparent);
  border-color: var(--color-ink-soft);
}
.theme-toggle:active { transform: scale(0.95); }
.nav.dark .theme-toggle {
  color: var(--color-ink-on-dark);
  border-color: var(--color-border-on-dark-strong);
}
.nav.dark .theme-toggle:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--color-ink-on-dark);
}
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) .theme-toggle .icon-sun { display: block; }
  html:not([data-theme]) .theme-toggle .icon-moon { display: none; }
}

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--color-border-strong);
  background: transparent;
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav.dark .nav-toggle { color: var(--color-ink-on-dark); border-color: var(--color-border-on-dark-strong); }
.nav-toggle svg { width: 20px; height: 20px; }

@media (max-width: 1100px) {
  .nav-links, .nav-actions .btn-secondary, .nav-actions .text-link { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-actions .open-app, .nav-actions .signup { display: inline-flex; }
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5);
  z-index: 49;
  box-shadow: var(--shadow-md);
  /* Cap to the space below the nav and scroll internally — otherwise a tall
     menu (10 links) overflows below a short phone viewport and the bottom
     items (Docs / Sign in) can't be reached. dvh tracks the live viewport
     as the mobile browser chrome shows/hides; vh is the fallback. */
  max-height: calc(100vh - var(--nav-h));
  max-height: calc(100dvh - var(--nav-h));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}
.mobile-menu.open { display: block; }
.mobile-menu ul { list-style: none; padding: 0; margin: 0; }
.mobile-menu li { padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); }
.mobile-menu li:last-child { border-bottom: 0; }
.mobile-menu a { color: var(--color-ink); font-weight: 500; font-size: 1.05rem; }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast), background var(--t-med), color var(--t-med), border-color var(--t-med), box-shadow var(--t-med);
  white-space: nowrap;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 16px; height: 16px; }

.btn-primary {
  background: var(--color-brand);
  color: #ffffff;
}
.btn-primary:hover {
  background: var(--color-brand-glow);
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(14, 148, 111, 0.28);
}
html[data-theme="dark"] .btn-primary { color: #062018; }
html[data-theme="dark"] .btn-primary:hover { color: #062018; }

.btn-secondary {
  background: transparent;
  color: var(--color-ink-2);
  border-color: var(--color-border-strong);
}
.btn-secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-ink-soft);
  color: var(--color-ink-2);
}
.bg-dark .btn-secondary {
  color: var(--color-ink-on-dark);
  border-color: var(--color-border-on-dark-strong);
}
.bg-dark .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--color-ink-on-dark);
  color: var(--color-ink-on-dark);
}
.btn-ghost {
  background: transparent;
  color: var(--color-ink-2);
  padding: 10px 14px;
}
.btn-ghost:hover { background: color-mix(in srgb, var(--color-ink) 6%, transparent); color: var(--color-ink-2); }
.bg-dark .btn-ghost { color: var(--color-ink-on-dark); }
.bg-dark .btn-ghost:hover { background: rgba(255, 255, 255, 0.06); color: var(--color-ink-on-dark); }

.btn-accent {
  background: var(--color-accent);
  color: #1A1410;
}
.btn-accent:hover { background: var(--color-accent-soft); color: #1A1410; }

.btn-lg { padding: 16px 28px; font-size: 1.02rem; }
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }

.text-link {
  color: var(--color-ink);
  font-weight: 500;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.text-link:hover { color: var(--color-brand); }
.bg-dark .text-link { color: var(--color-ink-on-dark-soft); }
.bg-dark .text-link:hover { color: var(--color-ink-on-dark); }
.nav.dark .text-link { color: var(--color-ink-on-dark-soft); }
.nav.dark .text-link:hover { color: var(--color-ink-on-dark); }

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  color: var(--color-brand);
  position: relative;
}
.arrow-link::after {
  content: '→';
  display: inline-block;
  transition: transform var(--t-fast);
}
.arrow-link:hover::after { transform: translateX(3px); }

/* Documentation index cards: the whole card is clickable, but the
   "Read the guide" affordance is a real <a> link (stretched to cover the
   card) rather than a bare span — so it behaves like the link it looks like.
   The link is reset to static so its ::before overlay anchors to the card,
   not to the link; the arrow stays on ::after, untouched. */
.card.doc-card { position: relative; }
.doc-card .arrow-link.stretched-link { position: static; }
.doc-card .arrow-link.stretched-link::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* =========================================================
   Pills / Tags / Chips
   ========================================================= */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  background: rgba(14, 148, 111, 0.12);
  color: #075F47;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid rgba(14, 148, 111, 0.30);
}
html[data-theme="dark"] .pill {
  background: rgba(20, 176, 127, 0.18);
  color: #5DD0A8;
  border-color: rgba(20, 176, 127, 0.40);
}
.pill .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-brand);
  box-shadow: 0 0 8px color-mix(in srgb, var(--color-brand) 60%, transparent);
}
.bg-dark .pill {
  background: rgba(20, 176, 127, 0.18);
  color: #5DD0A8;
  border-color: rgba(20, 176, 127, 0.40);
}

/* =========================================================
   Cards
   ========================================================= */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--t-med), box-shadow var(--t-med), border-color var(--t-med), background var(--t-theme);
}
.card.hoverable:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
}
.card-dark {
  background: var(--color-surface-on-dark);
  border-color: var(--color-border-on-dark);
  color: var(--color-ink-on-dark);
}
.card-dark h3, .card-dark h4 { color: var(--color-ink-on-dark); }
.card h3 { margin-top: 0; }
.card-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  background: rgba(14, 148, 111, 0.10);
  color: var(--color-brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.card-icon svg { width: 22px; height: 22px; }
html[data-theme="dark"] .card-icon { background: rgba(20, 176, 127, 0.14); }
.bg-dark .card-icon {
  background: rgba(216, 154, 56, 0.14);
  color: var(--color-accent-soft);
}

/* =========================================================
   Grid layouts
   ========================================================= */
.grid {
  display: grid;
  gap: var(--space-5);
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 880px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.split {
  display: grid;
  gap: var(--space-7);
  grid-template-columns: 1fr 1fr;
  align-items: center;
}
@media (max-width: 880px) {
  .split { grid-template-columns: 1fr; }
}

/* =========================================================
   Hero — always slate-teal in light, near-black in dark
   ========================================================= */
.hero {
  position: relative;
  background: var(--color-section-dark);
  color: var(--color-ink-on-dark);
  padding: calc(var(--nav-h) + var(--space-9)) 0 var(--space-10);
  margin-top: calc(-1 * var(--nav-h));
  overflow: hidden;
  transition: background var(--t-theme);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(800px 480px at 80% -10%, rgba(20, 176, 127, 0.10), transparent 60%),
    radial-gradient(700px 540px at 10% 110%, rgba(14, 148, 111, 0.20), transparent 60%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(236, 230, 215, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(236, 230, 215, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
  mask-image: radial-gradient(ellipse 1000px 600px at 50% 50%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 1000px 600px at 50% 50%, black 30%, transparent 80%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; }
.hero h1 { color: var(--color-ink-on-dark); }
.hero .lede { color: var(--color-ink-on-dark-soft); font-size: 1.25rem; max-width: 60ch; }
.hero-actions { display: flex; gap: var(--space-3); margin-top: var(--space-6); flex-wrap: wrap; }

.hero-page {
  position: relative;
  background: var(--color-section-dark);
  color: var(--color-ink-on-dark);
  padding: calc(var(--nav-h) + var(--space-7)) 0 var(--space-8);
  margin-top: calc(-1 * var(--nav-h));
  overflow: hidden;
  transition: background var(--t-theme);
}
.hero-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(800px 400px at 70% 0%, rgba(20, 176, 127, 0.08), transparent 60%),
    radial-gradient(700px 400px at 0% 100%, rgba(14, 148, 111, 0.18), transparent 60%);
  pointer-events: none;
}
.hero-page-inner { position: relative; z-index: 2; }
.hero-page h1 { color: var(--color-ink-on-dark); }
.hero-page .lede { color: var(--color-ink-on-dark-soft); }
.hero-page .eyebrow { color: var(--color-accent-soft); }
.hero-page .eyebrow::before { background: var(--color-accent-soft); }

/* =========================================================
   Marquee / logos / stats
   ========================================================= */
.marquee {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-7);
  flex-wrap: wrap;
  opacity: 0.75;
  color: var(--color-ink-soft);
}
.marquee-label {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  font-weight: 600;
  margin-bottom: var(--space-5);
  text-align: center;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-5);
}
@media (max-width: 880px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  padding: var(--space-5);
  border-left: 1px solid var(--color-border);
}
.bg-dark .stat { border-left-color: var(--color-border-on-dark); }
.stat-value {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-ink-2);
  line-height: 1;
}
.bg-dark .stat-value { color: var(--color-ink-on-dark); }
.stat-label {
  margin-top: var(--space-3);
  font-size: 0.88rem;
  color: var(--color-ink-soft);
}
.bg-dark .stat-label { color: var(--color-ink-on-dark-soft); }

/* =========================================================
   Feature blocks
   ========================================================= */
.feature {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-border);
}
.feature:first-child { border-top: 0; padding-top: 0; }
.feature-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  letter-spacing: 0.1em;
}

/* =========================================================
   Code blocks / preview
   ========================================================= */
.code {
  background: #050B0F;
  color: #D6CFB7;
  padding: var(--space-5);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  overflow-x: auto;
  border: 1px solid rgba(20, 176, 127, 0.10);
}
.code .k { color: #5DD0A8; }
.code .s { color: #ECC379; }
.code .c { color: #7A8079; font-style: italic; }
.code .n { color: #5A8A9A; }

/* =========================================================
   Forms
   ========================================================= */
.form-group { margin-bottom: var(--space-4); }
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-ink-2);
  margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 12px 14px;
  background: var(--color-surface);
  color: var(--color-ink);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-theme), color var(--t-theme);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 4px rgba(14, 148, 111, 0.12);
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-help { color: var(--color-ink-soft); font-size: 0.82rem; margin-top: 6px; }
.form-divider {
  display: flex; align-items: center; gap: var(--space-3);
  color: var(--color-ink-soft); font-size: 0.82rem;
  margin: var(--space-5) 0;
}
.form-divider::before, .form-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--color-border);
}

.auth-card {
  max-width: 440px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  box-shadow: var(--shadow-md);
}

/* =========================================================
   Pricing
   ========================================================= */
.pricing-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr 1fr;
  max-width: 1000px;
  margin: 0 auto;
}
@media (max-width: 880px) { .pricing-grid { grid-template-columns: 1fr; } }
.price-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-7);
  position: relative;
  transition: transform var(--t-med), box-shadow var(--t-med), background var(--t-theme), border-color var(--t-theme);
}
.price-card.featured {
  background: var(--color-section-dark);
  color: var(--color-ink-on-dark);
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}
.price-card.featured h3 { color: var(--color-ink-on-dark); }
.price-card.featured .price-amount { color: var(--color-ink-on-dark); }
.price-card.featured .price-meta { color: var(--color-ink-on-dark-soft); }
.price-card.featured .feature-list li { color: var(--color-ink-on-dark-soft); }
.price-card.featured .feature-list svg { color: var(--color-accent-soft); }

.price-tag {
  position: absolute;
  top: var(--space-5); right: var(--space-5);
  background: var(--color-accent);
  color: #1A1410;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
}
.price-amount {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--color-ink-2);
}
.price-meta {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
  margin: var(--space-3) 0 var(--space-5);
}

.feature-list { list-style: none; padding: 0; margin: var(--space-5) 0; }
.feature-list li {
  display: flex;
  gap: var(--space-3);
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--color-ink);
  line-height: 1.5;
}
.feature-list svg {
  width: 18px; height: 18px;
  color: var(--color-brand);
  flex-shrink: 0;
  margin-top: 2px;
}

/* =========================================================
   Tables
   ========================================================= */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.table th, .table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.table th {
  font-weight: 600;
  color: var(--color-ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.table td { color: var(--color-ink); }

/* =========================================================
   Docs sidebar
   ========================================================= */
.docs-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-7);
  align-items: start;
}
@media (max-width: 880px) { .docs-layout { grid-template-columns: 1fr; } }

.docs-sidebar { position: sticky; top: calc(var(--nav-h) + var(--space-5)); }
.docs-sidebar h4 {
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-3);
}
.docs-sidebar ul { list-style: none; padding: 0; margin: 0 0 var(--space-5); border-left: 2px solid var(--color-border); }
.docs-sidebar li a {
  display: block;
  padding: 7px 14px;
  margin-left: -2px;
  border-left: 2px solid transparent;
  color: var(--color-ink);
  font-size: 0.92rem;
}
.docs-sidebar li a:hover { color: var(--color-brand); }
.docs-sidebar li a.active {
  color: var(--color-brand);
  border-left-color: var(--color-brand);
  font-weight: 600;
}

.docs-content { max-width: 760px; }
.docs-content h2 { margin-top: var(--space-7); }
.docs-content h3 { margin-top: var(--space-6); }
.docs-content p { color: var(--color-ink); }
.docs-content ul, .docs-content ol { color: var(--color-ink); padding-left: 22px; }
.docs-content li { margin-bottom: 6px; }
.docs-content code {
  background: color-mix(in srgb, var(--color-brand) 10%, transparent);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.86em;
  color: var(--color-brand);
}
.docs-content blockquote {
  border-left: 3px solid var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 8%, transparent);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-5) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-ink);
}

.callout {
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-brand);
  background: var(--color-surface);
  padding: var(--space-4) var(--space-5);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-5) 0;
}
.callout strong { color: var(--color-brand); }

/* Pricing-specific in-development banner */
.dev-banner {
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-accent) 32%, transparent);
  color: var(--color-ink);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  max-width: 720px;
  margin: 0 auto var(--space-7);
}
.dev-banner svg { flex-shrink: 0; color: var(--color-accent); margin-top: 2px; }
.dev-banner strong { color: var(--color-ink-2); }

/* =========================================================
   Footer — always dark, brand teal in light, near-black in dark
   ========================================================= */
.footer {
  background: var(--color-section-darkest);
  color: var(--color-ink-on-dark);
  padding: var(--space-8) 0 var(--space-5);
  margin-top: var(--space-9);
  transition: background var(--t-theme);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-7);
}
@media (max-width: 880px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer h5 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-on-dark-faded);
  margin: 0 0 var(--space-4);
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 10px; }
.footer a { color: var(--color-ink-on-dark-soft); font-size: 0.92rem; }
.footer a:hover { color: var(--color-ink-on-dark); }
.footer-brand p { color: var(--color-ink-on-dark-faded); max-width: 36ch; font-size: 0.92rem; }
.footer-bottom {
  border-top: 1px solid var(--color-border-on-dark);
  padding-top: var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-ink-on-dark-faded);
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.footer-bottom a { color: var(--color-ink-on-dark-faded); }
.footer-bottom a:hover { color: var(--color-ink-on-dark); }

/* =========================================================
   Misc / decoration
   ========================================================= */
.divider {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: var(--space-7) 0;
}
.bg-dark .divider { border-top-color: var(--color-border-on-dark); }

.center { text-align: center; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-row { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }

.badge-row { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-bottom: var(--space-4); }

/* Subtle reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2, 0.7, 0.2, 1);
}
.reveal.in { opacity: 1; transform: none; }

/* Logged-in app link, hidden by default; toggled via JS */
[data-auth='in'] { display: none !important; }
[data-auth='out'] { display: inline-flex; }
body.is-authed [data-auth='in'] { display: inline-flex !important; }
body.is-authed [data-auth='out'] { display: none !important; }

/* Visualization placeholders */
.viz-frame {
  background: linear-gradient(180deg, var(--color-surface-on-dark), var(--color-surface-on-dark-2));
  border: 1px solid var(--color-border-on-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.viz-frame::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(400px 200px at 80% 0%, rgba(20, 176, 127, 0.08), transparent 60%);
  pointer-events: none;
}

/* Map zone color swatches (for Rx demo) */
.zone-row { display: flex; align-items: center; gap: var(--space-3); padding: 10px 0; border-bottom: 1px solid var(--color-border-on-dark); font-size: 0.9rem; }
.zone-row:last-child { border-bottom: 0; }
.zone-swatch { width: 16px; height: 16px; border-radius: 4px; flex-shrink: 0; }
.zone-row .label { color: var(--color-ink-on-dark); flex: 1; }
.zone-row .rate { font-family: var(--font-mono); color: var(--color-ink-on-dark-soft); }

/* "Empty state" demo coming soon */
.coming-soon {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-9) var(--space-6);
  text-align: center;
  background: var(--color-bg-alt);
}

/* =========================================================
   MOBILE OPTIMIZATIONS
   Goal: a farmer in a tractor cab on a phone never has to
   pinch-zoom to see a full layout. Nothing should ever be
   wider than the viewport. Three breakpoints:
     - 880px : tablets (existing rules)
     - 600px : phones
     - 420px : small phones (iPhone SE, older Androids)
   ========================================================= */

/* Global safety nets — applied at every breakpoint */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
}
img, svg, video, canvas, picture, iframe {
  max-width: 100%;
  height: auto;
}
/* Long words/URLs/emails never push container width */
p, li, h1, h2, h3, h4, h5, span, a, td, th, dd, dt, blockquote {
  overflow-wrap: anywhere;
  word-break: normal;
}
/* Grid/flex items must be allowed to shrink below their content */
.grid > *, .split > *, .docs-content, .docs-layout > *,
.pricing-grid > *, .stats > *, .footer-grid > *,
.hero-inner > *, .hero-page-inner > *, .nav-inner > * {
  min-width: 0;
}
/* Code blocks: keep formatting, but scroll horizontally inside their box
   instead of pushing the page wider */
pre, .code {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  word-wrap: normal;
}
.card, .price-card, .auth-card, .viz-frame, .callout, .dev-banner {
  max-width: 100%;
}

/* ── 880px and below ─────────────────────────────── */
@media (max-width: 880px) {
  .container { padding: 0 var(--space-4); }
  .feature > div[style*="min-width"] { min-width: 0 !important; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
  .stat { padding: var(--space-3); }
  .footer-grid { gap: var(--space-5); }
  .price-card { padding: var(--space-5); }
  .auth-card { padding: var(--space-5); }
  .hero-page { padding: calc(var(--nav-h) + var(--space-6)) 0 var(--space-7); }
}

/* ── 600px and below: phones ─────────────────────── */
@media (max-width: 600px) {
  .container { padding: 0 var(--space-4); }
  section { padding: var(--space-7) 0; }
  section.tight { padding: var(--space-6) 0; }

  h1 { font-size: clamp(1.9rem, 8.5vw, 2.6rem); line-height: 1.1; }
  h2 { font-size: clamp(1.5rem, 6.5vw, 2.1rem); }
  h3 { font-size: clamp(1.2rem, 5vw, 1.5rem); }
  .lede { font-size: 1.05rem; line-height: 1.5; }

  .hero { padding: calc(var(--nav-h) + var(--space-6)) 0 var(--space-7); }
  .hero h1 { font-size: clamp(1.95rem, 9vw, 2.6rem); }
  .hero .lede { font-size: 1.05rem; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: var(--space-3); }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-page { padding: calc(var(--nav-h) + var(--space-5)) 0 var(--space-6); }

  .stats { grid-template-columns: 1fr; gap: var(--space-2); }
  .stat {
    padding: var(--space-4) 0;
    border-left: 0;
    border-top: 1px solid var(--color-border);
  }
  .bg-dark .stat { border-top-color: var(--color-border-on-dark); border-left: 0; }
  .stat:first-child { border-top: 0; padding-top: 0; }
  .stat-value { font-size: 2.1rem; }

  .marquee { gap: var(--space-3); flex-direction: column; }
  .marquee > span:not([style]) { display: none; }
  .marquee > span[style] { font-size: 1.05rem !important; }

  .card { padding: var(--space-5); }

  .feature > div[style*="display"] { flex-wrap: wrap; gap: var(--space-3) !important; }
  .feature > div[style*="display"] > div:first-child { font-size: 2.6rem !important; }

  .table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }
  .table th, .table td { padding: 10px 12px; font-size: 0.88rem; }

  .price-amount { font-size: 2.1rem; }
  .price-tag { top: var(--space-3); right: var(--space-3); font-size: 0.62rem; padding: 4px 9px; }

  .flex-center { flex-direction: column; align-items: stretch; gap: var(--space-3) !important; }
  .flex-center .btn { width: 100%; justify-content: center; }

  .btn-lg { padding: 14px 22px; font-size: 0.98rem; }

  .card-icon { width: 38px; height: 38px; }
  .card-icon svg { width: 18px; height: 18px; }

  .footer-grid { grid-template-columns: 1fr; gap: var(--space-5); }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: var(--space-2); }

  .code, pre.code {
    font-size: 0.78rem;
    padding: var(--space-4);
    line-height: 1.6;
  }

  .auth-card { padding: var(--space-5) var(--space-4); }

  .form-input, .form-select, .form-textarea {
    font-size: 16px;
    padding: 14px;
  }

  form .grid.grid-2 { grid-template-columns: 1fr; }

  .hero-inner > div[class*="reveal"] { margin-top: var(--space-7) !important; }

  /* Inline 2-col grids inside cards (descendant match) */
  .card div[style*="grid-template-columns: 1fr 1fr"],
  .card div[style*="grid-template-columns: 2fr 1fr"],
  .card div[style*="grid-template-columns: 1fr 2fr"] {
    grid-template-columns: 1fr !important;
  }

  .split { gap: var(--space-5); }

  .badge-row { gap: var(--space-2); }
  .pill { font-size: 0.72rem; padding: 4px 9px; }

  .brand { font-size: 1.1rem; gap: 8px; }
  .brand-mark img { width: 28px; height: 28px; }

  .theme-toggle { width: 34px; height: 34px; }
  .theme-toggle svg { width: 16px; height: 16px; }

  .eyebrow { font-size: 0.7rem; }

  .docs-sidebar { position: relative; top: auto; }
  .docs-content h1 { font-size: 1.9rem !important; }
  .docs-content h2 { font-size: 1.4rem; }
  .docs-content h3 { font-size: 1.15rem; }
  .docs-content p, .docs-content li { font-size: 0.97rem; }
  .docs-content code { font-size: 0.82em; word-break: break-word; }

  .viz-frame > div[style*="display: flex; flex-direction: column"] > div {
    font-size: 0.78rem !important;
    padding: var(--space-2) var(--space-3) !important;
  }

  .hero-inner p[class*="muted"] { font-size: 0.78rem; }
}

/* ── 420px and below: small phones ─────────────────── */
@media (max-width: 420px) {
  .container { padding: 0 14px; }

  h1 { font-size: clamp(1.7rem, 9vw, 2.2rem); }
  .hero h1 { font-size: clamp(1.7rem, 9vw, 2.3rem); }

  .price-amount { font-size: 1.8rem; }
  .stat-value { font-size: 1.85rem; }

  .nav-actions .text-link { display: none; }
  .nav-actions .signup { padding: 8px 14px; font-size: 0.85rem; }

  .feature > div > div:first-child[style*="font-size"] { font-size: 2.2rem !important; }

  .code, pre.code { font-size: 0.72rem; padding: var(--space-3); }
}

/* ── Reduced-motion friendly ─────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0ms !important;
    transition-duration: 0ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* Footer social icons */
.footer-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-pill);
  background: rgba(236, 230, 215, 0.06);
  color: var(--color-ink-on-dark-soft);
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.footer-social:hover {
  background: rgba(236, 230, 215, 0.12);
  color: var(--color-ink-on-dark);
  transform: translateY(-1px);
}