/* ===== Boardroom Alchemy: Design Tokens ===== */
:root,
[data-theme='light'] {
  /* Surfaces: warm parchment / ivory */
  --color-bg: #f6f1e6;
  --color-surface: #fbf8f0;
  --color-surface-2: #fdfcf8;
  --color-surface-offset: #efe7d4;
  --color-surface-offset-2: #e5dabf;
  --color-surface-dynamic: #dccdaa;
  --color-divider: #ddd0ae;
  --color-border: #cdbc90;

  /* Text: ink */
  --color-text: #201b12;
  --color-text-muted: #6c6250;
  --color-text-faint: #a5987d;
  --color-text-inverse: #f6f1e6;

  /* Ink panel (used for dark contrast sections in light mode) */
  --color-ink: #14120f;
  --color-ink-2: #1c1913;

  /* Primary accent: antique bronze / gold */
  --color-primary: #7d5a24;
  --color-primary-hover: #5f431a;
  --color-primary-active: #493313;
  --color-primary-highlight: #e9dbb2;

  /* Gold (on dark surfaces) */
  --color-gold: #c79a41;
  --color-gold-soft: #e4cd94;

  --color-error: #9c3b32;
  --color-error-highlight: #ecd6d2;
  --color-success: #4a6b34;

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.9rem;
  --radius-xl: 1.4rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 80 / 0.08);
  --shadow-md: 0 6px 16px oklch(0.2 0.02 80 / 0.10);
  --shadow-lg: 0 18px 40px oklch(0.15 0.02 80 / 0.16);

  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1240px;
  --content-full: 100%;

  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body: 'General Sans', 'Segoe UI', system-ui, sans-serif;
}

[data-theme='dark'] {
  --color-bg: #121009;
  --color-surface: #17150e;
  --color-surface-2: #1c1912;
  --color-surface-offset: #201c14;
  --color-surface-offset-2: #272118;
  --color-surface-dynamic: #322b1e;
  --color-divider: #2c2519;
  --color-border: #3c331f;

  --color-text: #ece4d1;
  --color-text-muted: #a89a7b;
  --color-text-faint: #6e6146;
  --color-text-inverse: #171308;

  --color-ink: #0c0a06;
  --color-ink-2: #171308;

  --color-primary: #d4af5f;
  --color-primary-hover: #e6c884;
  --color-primary-active: #f0d9a4;
  --color-primary-highlight: #3a3018;

  --color-gold: #d4af5f;
  --color-gold-soft: #ecd9a4;

  --color-error: #d98d80;
  --color-error-highlight: #3a2420;
  --color-success: #8fae6e;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.35);
  --shadow-md: 0 6px 16px oklch(0 0 0 / 0.45);
  --shadow-lg: 0 18px 44px oklch(0 0 0 / 0.55);
}

/* ===== Type scale ===== */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.25vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.15rem, 1.02rem + 0.65vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.1vw, 2.1rem);
  --text-2xl: clamp(2rem, 1.3rem + 2.4vw, 3.4rem);
  --text-3xl: clamp(2.5rem, 1.2rem + 3.6vw, 4.6rem);
  --text-hero: clamp(2.75rem, 1rem + 5.4vw, 6.2rem);

  --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;
}

/* ===== Layout helpers ===== */
.wrap {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}
.wrap--narrow {
  max-width: var(--content-default);
}
.section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
}
.section-tight {
  padding-block: clamp(var(--space-10), 6vw, var(--space-20));
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  display: inline-block;
}
h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
}
h2.section-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
p.lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 62ch;
}
.body-copy {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid oklch(from var(--color-border) l c h / 0.6);
  transition:
    transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}
.brand-mark {
  width: 30px;
  height: 30px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  letter-spacing: 0.01em;
  font-weight: 600;
  line-height: 1.1;
}
.brand-name span {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 1px;
}
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-links {
  display: flex;
  gap: var(--space-6);
}
.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
}
.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-primary);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.icon-btn {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface);
}
.icon-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.icon-btn svg {
  width: 17px;
  height: 17px;
}
.menu-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  align-items: center;
  justify-content: center;
}
.menu-toggle svg {
  width: 18px;
  height: 18px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-on-dark {
  background: var(--color-gold);
  color: var(--color-ink);
}
.btn-on-dark:hover {
  background: var(--color-gold-soft);
}

/* ===== Hero ===== */
.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-24)) clamp(var(--space-12), 7vw, var(--space-20));
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(var(--space-8), 6vw, var(--space-16));
  align-items: center;
}
.hero h1 {
  font-size: var(--text-hero);
  line-height: 1.04;
  margin-block: var(--space-5) var(--space-6);
}
.hero h1 em {
  font-style: italic;
  color: var(--color-primary);
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-top: var(--space-8);
  flex-wrap: wrap;
}
.hero-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.hero-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-ink);
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-lg);
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-visual-caption {
  position: absolute;
  left: var(--space-6);
  bottom: var(--space-6);
  right: var(--space-6);
  color: var(--color-gold-soft);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

/* ===== Logo strip / trust ===== */
.trust-strip {
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.trust-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  justify-content: space-between;
  padding-block: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ===== Moments (trigger list) ===== */
.moments {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-10);
}
.moment-card {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}
.moment-card .num {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--space-2);
}
.moment-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  font-family: var(--font-body);
  margin-bottom: var(--space-2);
}
.moment-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===== Pillars ===== */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}
.pillar {
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.pillar-icon {
  width: 44px;
  height: 44px;
  color: var(--color-primary);
}
.pillar h3 {
  font-size: var(--text-lg);
  font-family: var(--font-display);
}
.pillar p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===== Diagnostic (dark panel) ===== */
.diagnostic {
  background: var(--color-ink);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-10), 7vw, var(--space-20));
  position: relative;
  overflow: hidden;
  background-image: linear-gradient(180deg, oklch(0 0 0 / 0.35), oklch(0 0 0 / 0.55)), url('./assets/network-texture.png');
  background-size: cover;
  background-position: center;
}
.diagnostic-inner {
  position: relative;
  z-index: 1;
}
.diagnostic .eyebrow {
  color: var(--color-gold-soft);
}
.diagnostic .eyebrow::before {
  background: var(--color-gold-soft);
}
.diagnostic h2 {
  color: var(--color-text-inverse);
  font-size: var(--text-2xl);
  margin-block: var(--space-4) var(--space-5);
  max-width: 20ch;
}
.diagnostic p.lede {
  color: oklch(from var(--color-text-inverse) l c h / 0.78);
  max-width: 58ch;
}
.diagnostic-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}
.diagnostic-step {
  border-top: 1px solid oklch(from var(--color-gold-soft) l c h / 0.35);
  padding-top: var(--space-5);
}
.diagnostic-step .step-label {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-gold-soft);
  display: block;
  margin-bottom: var(--space-2);
}
.diagnostic-step h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.diagnostic-step p {
  font-size: var(--text-sm);
  color: oklch(from var(--color-text-inverse) l c h / 0.7);
}
.diagnostic-footer {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-top: var(--space-12);
  flex-wrap: wrap;
}
.diagnostic-tag {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: oklch(from var(--color-text-inverse) l c h / 0.55);
}

/* ===== Proof stats ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}
.stat-card {
  padding: var(--space-6) var(--space-2);
  text-align: left;
  border-left: 2px solid var(--color-primary);
  padding-left: var(--space-5);
}
.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.stat-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.stats-note {
  margin-top: var(--space-8);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 60ch;
}

/* ===== About / founder ===== */
.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(var(--space-8), 6vw, var(--space-16));
  align-items: center;
}
.about-visual {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--color-surface-offset);
  overflow: hidden;
  aspect-ratio: 1;
  box-shadow: var(--shadow-lg);
}
.about-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 12%;
  display: block;
}
.about-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-text);
  border-left: 2px solid var(--color-primary);
  padding-left: var(--space-5);
  margin-block: var(--space-6);
  max-width: 46ch;
}
.about-credentials {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.credential-chip {
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* ===== Clients ===== */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}
.client-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.client-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.client-card .idx {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text-faint);
  display: block;
  margin-bottom: var(--space-3);
}

/* ===== Contact ===== */
.contact {
  background: var(--color-surface-offset);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-10), 7vw, var(--space-20));
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-10);
  align-items: center;
}
.contact h2 {
  font-size: var(--text-2xl);
  max-width: 16ch;
}
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.contact-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}
.contact-row:last-child {
  border-bottom: none;
}
.contact-row svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.contact-row a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--text-sm);
}
.contact-row a:hover {
  color: var(--color-primary);
}
.contact-row span.label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-10);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.footer-brand svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
}
.footer-meta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-align: right;
}
.footer-links {
  display: flex;
  gap: var(--space-5);
}
.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--color-primary);
}

/* ===== Scroll reveal ===== */
[data-reveal] {
  opacity: 0;
  clip-path: inset(12% 0 0 0);
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    clip-path 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].is-visible {
  opacity: 1;
  clip-path: inset(0 0 0 0);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero-grid,
  .about,
  .contact {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    order: -1;
    aspect-ratio: 16/10;
  }
  .pillars {
    grid-template-columns: 1fr;
  }
  .diagnostic-steps {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .clients-grid {
    grid-template-columns: 1fr;
  }
  .moments {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .nav-actions .btn-primary {
    display: none;
  }
  .brand-name {
    font-size: var(--text-sm);
  }
  .brand-name span {
    white-space: nowrap;
  }
  .stats {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: clamp(2.4rem, 8vw, 3.4rem);
  }
}

@media (max-width: 400px) {
  .brand-name span {
    display: none;
  }
}

/* ===== Mobile nav drawer ===== */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.mobile-nav.is-open {
  transform: translateX(0);
}
.mobile-nav-header {
  display: flex;
  justify-content: flex-end;
}
.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-12);
}
.mobile-nav-links a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  text-decoration: none;
}
.mobile-nav-cta {
  margin-top: var(--space-8);
  align-self: flex-start;
}