/* ==========================================================================
   Hidden Cofounder — landing page
   Design tokens + component styles
   Imported from Claude Design project "Hidden cofounder consulting site"
   (design system: hidden-cofounder-design-system)
   ========================================================================== */

/* ---------------------------------------------------------------- Tokens -- */
:root {
  /* --- base forest palette --- */
  --pine-950: oklch(0.19 0.028 155);
  --pine-900: oklch(0.24 0.035 155);
  --pine-800: oklch(0.30 0.042 154);
  --pine-700: oklch(0.37 0.048 153);
  --pine-600: oklch(0.45 0.052 152);
  --pine-500: oklch(0.53 0.055 150);

  --almond-600: oklch(0.72 0.045 75);
  --almond-500: oklch(0.80 0.045 78);
  --almond-400: oklch(0.87 0.035 80);
  --almond-300: oklch(0.92 0.025 82);

  --lake-900: oklch(0.24 0.04 228);
  --lake-800: oklch(0.30 0.045 226);
  --lake-700: oklch(0.37 0.055 224);
  --lake-600: oklch(0.45 0.06 222);
  --lake-500: oklch(0.53 0.06 220);
  --lake-400: oklch(0.66 0.05 218);
  --lake-300: oklch(0.80 0.035 216);

  --charcoal-900: oklch(0.20 0.010 95);
  --charcoal-800: oklch(0.27 0.011 95);
  --charcoal-700: oklch(0.35 0.012 95);
  --charcoal-600: oklch(0.45 0.012 95);
  --charcoal-500: oklch(0.55 0.012 95);

  --clouds-50: oklch(0.98 0.006 95);
  --clouds-100: oklch(0.965 0.008 92);
  --clouds-200: oklch(0.94 0.011 90);
  --clouds-300: oklch(0.90 0.014 88);
  --clouds-400: oklch(0.84 0.016 86);
  --clouds-500: oklch(0.76 0.018 85);

  /* --- semantic aliases --- */
  --surface-page: var(--almond-300);
  --surface-card: var(--clouds-50);
  --surface-sunken: var(--almond-400);
  --surface-raised: var(--almond-500);
  --surface-tint: var(--almond-600);
  --surface-inverse: var(--pine-950);
  --surface-brand: var(--pine-900);
  --surface-brand-soft: var(--almond-400);

  --text-primary: var(--charcoal-900);
  --text-secondary: var(--charcoal-600);
  --text-tertiary: var(--charcoal-500);
  --text-inverse: var(--clouds-50);
  --text-on-brand: var(--clouds-50);

  --border-subtle: var(--clouds-400);
  --border-default: var(--clouds-500);
  --border-strong: var(--charcoal-700);

  --accent-primary: var(--pine-800);
  --accent-primary-hover: var(--pine-700);
  --accent-primary-active: var(--pine-950);
  --accent-secondary: var(--lake-700);
  --accent-secondary-hover: var(--lake-600);
  --accent-tertiary: var(--almond-600);
  --accent-tertiary-hover: var(--almond-500);

  --focus-ring: var(--lake-500);
  --state-success: var(--almond-600);
  --state-info: var(--lake-600);
  --state-warning: oklch(0.68 0.11 70);
  --state-danger: oklch(0.5 0.14 27);

  /* --- typography --- */
  --font-sans: 'Figtree', -apple-system, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --eyebrow-size: 0.8125rem;
  --eyebrow-tracking: 0.08em;

  /* --- spacing / radius / elevation --- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 150 / 0.06), 0 1px 1px oklch(0.2 0.02 150 / 0.04);
  --shadow-md: 0 6px 16px oklch(0.2 0.02 150 / 0.08), 0 2px 4px oklch(0.2 0.02 150 / 0.05);
  --shadow-lg: 0 16px 40px oklch(0.2 0.02 150 / 0.12), 0 4px 10px oklch(0.2 0.02 150 / 0.06);

  --container-max: 1160px;
}

/* ------------------------------------------------------------- Base reset - */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--surface-page);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-primary); }
a:hover { color: var(--accent-primary-hover); }

svg { display: block; }

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --------------------------------------------------------------- Layout --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-inline: 40px;
}

.eyebrow {
  font-size: var(--eyebrow-size);
  font-weight: 700;
  letter-spacing: var(--eyebrow-tracking);
  text-transform: uppercase;
}

/* Decorative art sits behind content and never intercepts pointer events */
.deco {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

/* --------------------------------------------------------------- Buttons -- */
.btn {
  display: inline-block;
  padding: 16px 32px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: background 150ms ease, transform 120ms ease;
}
.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--accent-primary);
  color: var(--text-on-brand);
}
.btn--primary:hover {
  background: var(--accent-primary-hover);
  color: var(--text-on-brand);
}

.btn--light {
  background: var(--clouds-50);
  color: var(--lake-900);
}
.btn--light:hover {
  background: var(--clouds-200);
  color: var(--lake-900);
}

/* ---------------------------------------------------------------- Header -- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand__mark { width: 34px; height: 34px; }
.brand__name {
  font-weight: 700;
  font-size: 19px;
  color: var(--pine-950);
  letter-spacing: -0.01em;
}

.nav {
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav__link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
}
.nav__link:hover { color: var(--pine-950); }
.nav__link--cta {
  font-weight: 600;
  color: var(--pine-950);
  border-bottom: 2px solid var(--pine-800);
  padding-bottom: 4px;
}
.nav__link--cta:hover { color: var(--pine-950); }

/* ------------------------------------------------------------------ Hero -- */
.hero {
  position: relative;
  padding: 150px 40px 170px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 30px;
  overflow: hidden;
}
.hero__deco--tr { right: -140px; top: -120px; width: 520px; height: 520px; }
.hero__deco--bl { left: -110px; bottom: -90px; width: 300px; height: 300px; }

.hero__eyebrow { position: relative; color: var(--pine-700); }

.hero__title {
  position: relative;
  margin: 0;
  font-size: clamp(2.8rem, 2.1rem + 2.6vw, 5rem);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.018em;
  color: var(--pine-950);
  max-width: 880px;
  text-wrap: balance;
}

.hero__subtitle {
  position: relative;
  font-size: 19px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 580px;
  text-wrap: pretty;
}

.hero__cta { position: relative; }
.hero__cta .btn { margin-top: 10px; }

/* -------------------------------------------------------------- Approach -- */
.approach {
  padding: 40px 40px 150px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 80px;
  align-items: center;
}
.approach__body {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.approach__eyebrow { color: var(--lake-600); }
.approach__title {
  font-size: clamp(1.9rem, 1.5rem + 1.3vw, 2.8rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.012em;
  color: var(--pine-950);
  text-wrap: pretty;
}
.approach__text {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 560px;
  text-wrap: pretty;
}
.approach__art {
  width: 100%;
  max-width: 400px;
  justify-self: center;
  height: auto;
}

/* ------------------------------------------------------------------ Work -- */
.work {
  padding: 0 40px 150px;
  display: flex;
  flex-direction: column;
  gap: 56px;
  align-items: center;
}
.work__head {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: center;
  text-align: center;
}
.work__eyebrow { color: var(--pine-700); }
.work__title {
  font-size: clamp(1.9rem, 1.5rem + 1.3vw, 2.8rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.012em;
  color: var(--pine-950);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  width: 100%;
}
.card {
  background: var(--surface-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.card__icon { width: 44px; height: 44px; }
.card__title {
  font-size: 22px;
  font-weight: 600;
  color: var(--pine-950);
}
.card__body {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary);
  text-wrap: pretty;
}

/* -------------------------------------------------------------- Problems -- */
.problems-section { padding: 0 40px 150px; }
.problems {
  background: var(--pine-950);
  border-radius: var(--radius-xl);
  padding: 90px 80px;
  display: flex;
  flex-direction: column;
  gap: 48px;
  position: relative;
  overflow: hidden;
}
.problems__deco { right: -100px; bottom: -120px; width: 360px; height: 360px; opacity: 0.35; }
.problems__eyebrow { color: var(--almond-500); }

/* Short statements, so they run in columns as a ruled list rather than a
   single very long stack. The rules land on a shared baseline per row. */
.problems__list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  column-gap: 44px;
}
.problem {
  padding: 22px 0 24px;
  border-top: 1px solid var(--pine-800);
  font-size: clamp(1.05rem, 1rem + 0.25vw, 1.2rem);
  font-weight: 500;
  line-height: 1.4;
  color: var(--clouds-50);
  text-wrap: pretty;
}

/* ------------------------------------------------------------- Statement -- */
.statement {
  padding: 0 40px 150px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 26px;
}
.statement__text {
  font-size: clamp(1.9rem, 1.5rem + 1.3vw, 2.9rem);
  font-weight: 600;
  line-height: 1.22;
  color: var(--pine-900);
  max-width: 820px;
  text-wrap: balance;
}

/* --------------------------------------------------------------- Contact -- */
.contact-section { padding: 0 40px 120px; }
.contact {
  background: var(--lake-900);
  border-radius: var(--radius-xl);
  padding: 100px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
  position: relative;
  overflow: hidden;
}
.contact__deco { left: -90px; top: -110px; width: 300px; height: 300px; opacity: 0.4; }
.contact__title {
  position: relative;
  font-size: clamp(1.9rem, 1.5rem + 1.3vw, 2.8rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.012em;
  color: var(--clouds-50);
  max-width: 640px;
  text-wrap: balance;
}
.contact__text {
  position: relative;
  font-size: 18px;
  line-height: 1.6;
  color: var(--lake-300);
  max-width: 520px;
  text-wrap: pretty;
}
.contact__cta { position: relative; }
.contact__cta .btn { margin-top: 10px; }

/* ---------------------------------------------------------------- Footer -- */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 36px 40px 44px;
  border-top: 1px solid var(--border-subtle);
}
.site-footer__meta {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* --------------------------------------------------------- Responsiveness - */
@media (max-width: 860px) {
  .approach {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-bottom: 110px;
  }
  .approach__art { grid-row: 1; max-width: 320px; }
  .problems { padding: 64px 40px; }
  .contact { padding: 72px 32px; }
}

@media (max-width: 680px) {
  .container { padding-inline: 24px; }
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding-block: 24px;
  }
  .nav { gap: 24px; flex-wrap: wrap; }
  .hero { padding: 96px 24px 110px; }
  .approach,
  .work,
  .problems-section,
  .statement { padding-inline: 24px; }
  .problems-section,
  .work,
  .statement { padding-bottom: 96px; }
  .contact-section { padding: 0 24px 80px; }
  .card { padding: 32px 28px; }
  .problems { padding: 48px 26px; gap: 32px; }
  .problem { padding: 18px 0 20px; }
  .contact { padding: 60px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}