/* =========================================================================
   TOKENISM — style.css
   Luxury-minimal design system: light/dark themes via CSS custom properties,
   fluid type scale, glassmorphism used sparingly, and Intersection-Observer
   driven reveal animations (see script.js for the class toggling).
   ========================================================================= */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, figure, blockquote, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

/* ---------- Design tokens ---------- */
:root {
  /* Light theme (default) */
  --bg: #faf9f6;
  --bg-elevated: #ffffff;
  --bg-alt: #f2efe9;
  --text: #17181a;
  --text-soft: #52565c;
  --text-faint: #8a8d92;
  --border: rgba(23, 24, 26, 0.10);
  --border-strong: rgba(23, 24, 26, 0.18);
  --accent: #1478b5;
  --accent-strong: #0d5c8c;
  --accent-soft: rgba(20, 120, 181, 0.10);
  --accent-contrast: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(255, 255, 255, 0.4);
  --shadow-soft: 0 1px 2px rgba(23,24,26,0.04), 0 8px 24px rgba(23,24,26,0.06);
  --shadow-lift: 0 12px 32px rgba(23,24,26,0.10), 0 2px 8px rgba(23,24,26,0.06);

  --font-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container-w: 1160px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 26px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #0e0e10;
  --bg-elevated: #17181b;
  --bg-alt: #131315;
  --text: #f2f1ec;
  --text-soft: #b7b7bd;
  --text-faint: #7c7d84;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);
  --accent: #4fb3e8;
  --accent-strong: #86d0f2;
  --accent-soft: rgba(79, 179, 232, 0.14);
  --accent-contrast: #0e0e10;
  --glass-bg: rgba(23, 24, 27, 0.55);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow-soft: 0 1px 2px rgba(0,0,0,0.3), 0 8px 24px rgba(0,0,0,0.35);
  --shadow-lift: 0 16px 40px rgba(0,0,0,0.45), 0 2px 10px rgba(0,0,0,0.3);
  color-scheme: dark;
}


html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}

.container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 8px 0;
  z-index: 999;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- Typography ---------- */
.section-eyebrow, .eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 0.9rem;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 30ch;
}
.section-title em { font-style: italic; color: var(--accent-strong); }

.section-lead {
  margin-top: 1.1rem;
  font-size: 1.06rem;
  color: var(--text-soft);
  max-width: 52ch;
}

.section-head { margin-bottom: 3.5rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background-color 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--text);
  color: var(--bg);
  box-shadow: var(--shadow-soft);
}
[data-theme="dark"] .btn-primary { background: var(--accent); color: var(--accent-contrast); }
.btn-primary:hover { box-shadow: var(--shadow-lift); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-soft); }

.btn-small { padding: 0.6rem 1.25rem; font-size: 0.85rem; }
.btn-block { width: 100%; margin-top: 0.5rem; }

/* ---------- Navbar ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  padding-block: 0.9rem;
  background: transparent;
  transition: background-color 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s var(--ease), padding 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom-color: var(--border);
  padding-block: 0.65rem;
}

.nav-inner {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-right: auto;
}
.brand-mark-img {
  display: block;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}
.brand-footer .brand-mark-img { width: 26px; height: 26px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.9rem;
}
.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-soft);
  position: relative;
  padding-block: 0.2rem;
  transition: color 0.2s var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
  transition: right 0.3s var(--ease);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { right: 0; }

.nav-actions { display: flex; align-items: center; gap: 0.9rem; }

.theme-toggle {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  position: relative;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.theme-toggle:hover { transform: rotate(14deg); border-color: var(--accent); }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px; height: 38px;
  background: transparent;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 1.6px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding-block: 6rem 3rem;
}

.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-orb {
  position: absolute;
  top: -260px; left: 50%;
  transform: translateX(-50%);
  opacity: 0.7;
}

.hero-content { position: relative; z-index: 1; max-width: 780px; }

.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin-top: 1.1rem;
}
.hero-title em { font-style: italic; color: var(--accent-strong); }

.hero-sub {
  margin: 1.75rem auto 0;
  max-width: 46ch;
  font-size: 1.12rem;
  color: var(--text-soft);
}

.hero-cta {
  margin-top: 2.4rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-tagline {
  margin-top: 3.2rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 500;
}

.scroll-cue {
  position: relative;
  z-index: 1;
  margin-top: 2.5rem;
  color: var(--text-faint);
  animation: bob 2.6s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Hero content should not wait for scroll — animate in on load */
.hero .reveal { transition-delay: calc(var(--i, 0) * 90ms); }

/* ---------- Sections (generic) ---------- */
.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); }
.section-alt { background: var(--bg-alt); }

/* ---------- About ---------- */
.about-inner { display: flex; justify-content: center; }
.about-copy { max-width: 62ch; }
.about-copy p { color: var(--text-soft); margin-top: 1.1rem; max-width: 56ch; }
.about-copy .section-lead { color: var(--text); font-size: 1.15rem; font-family: var(--font-display); font-style: italic; margin-top: 1.25rem; }

/* ---------- Framework ---------- */
.framework-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}
.framework-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: clamp(1rem, 4vw, 2.5rem);
  align-items: start;
  padding-block: 2.1rem;
  border-bottom: 1px solid var(--border);
  border-left: 2px solid transparent;
  padding-left: 1.25rem;
  margin-left: -1.25rem;
  transition: border-color 0.3s var(--ease);
}
.framework-row:hover { border-left-color: var(--accent); }
.framework-letter {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
}
.framework-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-family: var(--font-display);
}
.framework-body p { color: var(--text-soft); max-width: 62ch; }

/* ---------- Principles cards ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.1rem 1.8rem;
  transition: border-color 0.3s var(--ease);
}
.card:hover { border-color: var(--accent); }
.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-strong);
  margin-bottom: 1.4rem;
}
.card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}
.card p { color: var(--text-soft); font-size: 0.95rem; }

/* ---------- Steps (How We Seek Truth) ---------- */
.steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0.5rem;
}
.step {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
  transition: border-color 0.3s var(--ease);
}
.step:hover { border-color: var(--accent); }
.step-number {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-faint);
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}
.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-strong);
  margin-bottom: 1rem;
}
.step h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.step p { color: var(--text-soft); font-size: 0.9rem; }
.step-connector { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--border-strong); padding-top: 2.6rem; }
.step-connector svg { width: 28px; height: 10px; }

/* ---------- Vision ---------- */
.vision { text-align: center; position: relative; }
.vision-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 760px;
}
.vision-mark {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  margin-bottom: 1.75rem;
}
.vision-title { max-width: 22ch; }
.vision-copy { margin-top: 1.5rem; color: var(--text-soft); font-size: 1.08rem; max-width: 58ch; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.contact-form {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.field { display: flex; flex-direction: column; gap: 0.5rem; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--text-soft); }
.field input, .field textarea {
  background: var(--bg-alt);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  outline: none;
}
.field input.invalid, .field textarea.invalid { border-color: #d24444; }
.field-error {
  font-size: 0.8rem;
  color: #d24444;
  min-height: 1em;
}
.form-success {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--accent-soft);
  color: var(--accent-strong);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  font-size: 0.92rem;
  font-weight: 500;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding-block: 3rem;
  background: var(--bg-alt);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  text-align: center;
}
.footer-tagline { font-size: 0.85rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-faint); }
.footer-copy { font-size: 0.82rem; color: var(--text-faint); }

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 980px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .step-connector { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s var(--ease);
  }
  .nav-links.open { max-height: 400px; }
  .nav-links a { padding: 1rem clamp(1.25rem, 4vw, 2.5rem); width: 100%; border-bottom: 1px solid var(--border); }
  .nav-toggle { display: flex; }
  .nav-actions .btn-small { display: none; }

  .cards-grid { grid-template-columns: 1fr; }
  .framework-row { grid-template-columns: 56px 1fr; }
  .framework-letter { font-size: 2.2rem; }
}