/* ============================================================
   BASE — tokens, reset, typography primitives
   Nandini Mansinghka · Signals of Abundance
   ============================================================ */

:root,
[data-theme="light"] {
  /* Surfaces — warm ivory, paper-like */
  --color-bg: #F4EFE6;
  --color-bg-2: #ECE6DA;
  --color-surface: #FBF7EF;
  --color-surface-2: #E6DFD0;
  --color-border: #D9CFBC;
  --color-rule: #C9BFAB;

  /* Text — deep ink */
  --color-text: #1A1714;
  --color-text-muted: #5B544A;
  --color-text-faint: #8A8276;

  /* Accents */
  --color-primary: #0F4A52;          /* deep teal */
  --color-primary-hover: #0A363C;
  --color-primary-soft: #DDE7E5;
  --saffron: #B8632A;                /* muted saffron — used sparingly */
  --saffron-soft: #EBD9C5;

  /* Typography */
  --font-display: "Fraunces", "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-body: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  /* Type scale (fluid) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);   /* 12 → 13 */
  --text-sm: clamp(0.8125rem, 0.78rem + 0.2vw, 0.9rem);   /* 13 → 14.4 */
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);   /* 16 → 17 */
  --text-md: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);   /* 17 → 19 */
  --text-lg: clamp(1.25rem, 1.1rem + 0.7vw, 1.625rem);    /* 20 → 26 */
  --text-xl: clamp(1.625rem, 1.3rem + 1.4vw, 2.375rem);   /* 26 → 38 */
  --text-2xl: clamp(2.25rem, 1.5rem + 3vw, 3.75rem);      /* 36 → 60 */
  --text-hero: clamp(2.75rem, 1.4rem + 5.4vw, 5.75rem);   /* 44 → 92 */

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radii / shadows */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(26, 23, 20, 0.04);
  --shadow-md: 0 8px 24px rgba(26, 23, 20, 0.06);

  /* Layout */
  --content-narrow: 720px;
  --content-default: 1080px;
  --content-wide: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  /* Motion */
  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  color-scheme: light;
}

[data-theme="dark"] {
  --color-bg: #15110D;
  --color-bg-2: #1B1714;
  --color-surface: #1F1A15;
  --color-surface-2: #261F18;
  --color-border: #3A3027;
  --color-rule: #4A3F33;

  --color-text: #ECE3D2;
  --color-text-muted: #ADA294;
  --color-text-faint: #7A7062;

  --color-primary: #5BB3BD;
  --color-primary-hover: #82CED7;
  --color-primary-soft: #1E3A3D;
  --saffron: #D88554;
  --saffron-soft: #3A2A1F;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.45);

  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #15110D;
    --color-bg-2: #1B1714;
    --color-surface: #1F1A15;
    --color-surface-2: #261F18;
    --color-border: #3A3027;
    --color-rule: #4A3F33;
    --color-text: #ECE3D2;
    --color-text-muted: #ADA294;
    --color-text-faint: #7A7062;
    --color-primary: #5BB3BD;
    --color-primary-hover: #82CED7;
    --color-primary-soft: #1E3A3D;
    --saffron: #D88554;
    --saffron-soft: #3A2A1F;
    color-scheme: dark;
  }
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  hanging-punctuation: first last;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100dvh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  font-feature-settings: "ss01", "cv11";
  transition: background-color var(--transition), color var(--transition);
}

img, svg, video { display: block; max-width: 100%; height: auto; }

a {
  color: var(--color-primary);
  text-decoration: none;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:hover { text-decoration: underline; }

button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.08;
  color: var(--color-text);
  text-wrap: balance;
  font-variation-settings: "opsz" 96, "SOFT" 30;
}
h1 em, h2 em, h3 em {
  font-style: italic;
  font-variation-settings: "opsz" 96, "SOFT" 100, "WONK" 1;
  color: var(--color-primary);
}

p { text-wrap: pretty; max-width: 70ch; }

ul, ol { list-style: none; }

::selection {
  background: var(--saffron-soft);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== Layout primitives ===== */
.wrap {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
  border-top: 1px solid var(--color-rule);
}

.section-head {
  max-width: 56rem;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}
.section-head-narrow { max-width: 44rem; }

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  font-weight: 500;
}

.section-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-5);
}

.section-dek {
  font-size: var(--text-md);
  color: var(--color-text-muted);
  max-width: 50ch;
  line-height: 1.55;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.7rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-sm { padding: 0.45rem 0.95rem; font-size: var(--text-xs); letter-spacing: 0.04em; }
.btn-large { padding: 1rem 1.6rem; font-size: var(--text-md); }

.btn-primary {
  background: var(--color-primary);
  color: #FBF7EF;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  text-decoration: none;
  transform: translateY(-1px);
}
[data-theme="dark"] .btn-primary { color: #0E1A1C; }

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-rule);
}
.btn-ghost:hover {
  border-color: var(--color-text);
  text-decoration: none;
}

/* ===== Utility links ===== */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}
.link-arrow:hover { color: var(--color-primary-hover); text-decoration: none; }