/* ============ CTF Consultants — design tokens ============ */
:root,
[data-theme='light'] {
  /* Surfaces — warm ivory */
  --color-bg: #f7f5f1;
  --color-surface: #fbfaf7;
  --color-surface-2: #f1eee8;
  --color-border: #ddd8ce;
  --color-divider: #e6e2da;

  /* Text — warm ink */
  --color-text: #1d1c18;
  --color-text-muted: #6e6a61;
  --color-text-faint: #b3afa6;
  --color-text-inverse: #f7f5f1;

  /* Accent — deep marine navy */
  --color-primary: #16405b;
  --color-primary-hover: #0e2e43;
  --color-primary-highlight: #dbe4ea;

  /* Bronze — eyebrow labels only */
  --color-bronze: #8c6a3a;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.875rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 2px oklch(0.25 0.02 80 / 0.06);
  --shadow-md: 0 4px 16px oklch(0.25 0.02 80 / 0.09);

  --content-wide: 1160px;

  --font-display: 'Zodiak', Georgia, serif;
  --font-body: 'Switzer', 'Helvetica Neue', sans-serif;

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.75rem);

  --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;
}

[data-theme='dark'] {
  --color-bg: #15171a;
  --color-surface: #1a1d21;
  --color-surface-2: #1f2228;
  --color-border: #34383f;
  --color-divider: #262a30;
  --color-text: #d7d5d0;
  --color-text-muted: #8d8a84;
  --color-text-faint: #5c5a55;
  --color-text-inverse: #15171a;
  --color-primary: #86b3cd;
  --color-primary-hover: #a3c6da;
  --color-primary-highlight: #24343f;
  --color-bronze: #c2a06b;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #15171a; --color-surface: #1a1d21; --color-surface-2: #1f2228;
    --color-border: #34383f; --color-divider: #262a30;
    --color-text: #d7d5d0; --color-text-muted: #8d8a84; --color-text-faint: #5c5a55;
    --color-text-inverse: #15171a;
    --color-primary: #86b3cd; --color-primary-hover: #a3c6da; --color-primary-highlight: #24343f;
    --color-bronze: #c2a06b;
  }
}

/* ============ base ============ */
*, *::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: var(--space-16);
}
body {
  min-height: 100dvh; line-height: 1.6;
  font-family: var(--font-body, sans-serif); font-size: var(--text-base);
  color: var(--color-text); background-color: var(--color-bg);
}
img, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'] { list-style: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
h1, h2, h3 { text-wrap: balance; line-height: 1.12; font-family: var(--font-display); font-weight: 500; }
p, li { text-wrap: pretty; max-width: 68ch; }
::selection { background: oklch(from var(--color-primary) l c h / 0.25); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
a, button { transition: color var(--transition-interactive), background var(--transition-interactive), border-color var(--transition-interactive), box-shadow var(--transition-interactive), opacity var(--transition-interactive); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

.container { width: min(var(--content-wide), 100% - clamp(2rem, 6vw, 4rem)); margin-inline: auto; }

/* ============ header ============ */
.header {
  position: sticky; top: 0; z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.88);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}
.header__inner { display: flex; align-items: center; gap: var(--space-6); padding-block: var(--space-3); }
.brand { display: flex; align-items: center; gap: var(--space-3); color: var(--color-text); text-decoration: none; }
.brand__mark { width: 34px; height: 34px; color: var(--color-primary); flex: none; }
.brand__word { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; letter-spacing: 0.02em; line-height: 1; }
.brand__sub { display: block; font-family: var(--font-body); font-weight: 500; font-size: 0.66rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--color-text-muted); margin-top: 2px; }
.nav { margin-left: auto; display: flex; align-items: center; gap: var(--space-6); }
.nav a { color: var(--color-text-muted); text-decoration: none; font-size: var(--text-sm); font-weight: 500; }
.nav a:hover { color: var(--color-text); }
.nav__cta {
  color: var(--color-text-inverse) !important; background: var(--color-primary);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-full);
  white-space: nowrap;
}
.nav__cta:hover { background: var(--color-primary-hover); }
.theme-toggle { color: var(--color-text-muted); padding: var(--space-2); border-radius: var(--radius-full); display: grid; place-items: center; }
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-2); }
@media (max-width: 860px) { .nav a:not(.nav__cta) { display: none; } }

/* ============ hero ============ */
.hero { position: relative; overflow: hidden; padding-block: clamp(var(--space-16), 10vw, var(--space-32)) clamp(var(--space-12), 6vw, var(--space-20)); }
.hero__lines { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.5; }
.hero__lines path { fill: none; stroke: var(--color-border); stroke-width: 1.5; stroke-dasharray: 6 8; }
.hero__node { fill: var(--color-bronze); }
.hero__inner { position: relative; z-index: 1; max-width: 60rem; }
.eyebrow {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--color-bronze); margin-bottom: var(--space-5);
}
.hero h1 { font-size: var(--text-3xl); font-weight: 500; letter-spacing: -0.01em; max-width: 16ch; }
.hero h1 em { font-style: italic; color: var(--color-primary); }
.hero__lede { margin-top: var(--space-6); font-size: var(--text-lg); font-weight: 400; color: var(--color-text-muted); max-width: 52ch; line-height: 1.55; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-8); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 600; text-decoration: none; letter-spacing: 0.01em;
}
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); }
.btn--ghost { border: 1px solid var(--color-border); color: var(--color-text); }
.btn--ghost:hover { border-color: var(--color-text-muted); background: var(--color-surface); }
.btn--invert { background: var(--color-text-inverse); color: var(--color-text); font-size: var(--text-base); padding: var(--space-4) var(--space-8); }
.btn--invert:hover { opacity: 0.92; }

.stats {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6);
  margin-top: clamp(var(--space-12), 7vw, var(--space-20));
  padding-top: var(--space-8); border-top: 1px solid var(--color-divider);
}
.stat dt { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; color: var(--color-text); }
.stat dd { margin-top: var(--space-1); font-size: var(--text-sm); color: var(--color-text-muted); }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ============ sections ============ */
.section { padding-block: clamp(var(--space-16), 9vw, var(--space-32)); }
.section--offset { background: var(--color-surface-2); }
.section__title { font-size: var(--text-2xl); max-width: 24ch; margin-bottom: clamp(var(--space-8), 5vw, var(--space-16)); }
.grid-2 { display: grid; grid-template-columns: 5fr 6fr; gap: clamp(var(--space-8), 6vw, var(--space-20)); align-items: start; }
.grid-2 h2 { font-size: var(--text-2xl); position: sticky; top: var(--space-24); }
.section__body p + p { margin-top: var(--space-5); }
.section__body p { font-size: var(--text-base); color: var(--color-text-muted); }
.section__body p:first-child { color: var(--color-text); font-size: var(--text-lg); line-height: 1.5; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } .grid-2 h2 { position: static; } }

/* ============ services ============ */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-8);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.card__num { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em; color: var(--color-bronze); }
.card h3 { font-size: var(--text-lg); font-weight: 500; }
.card p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }
.card--cta { background: var(--color-primary); border-color: var(--color-primary); justify-content: center; }
.card--cta h3, .card--cta p { color: var(--color-text-inverse); }
.card--cta p { opacity: 0.8; }
.card--cta .btn { margin-top: var(--space-4); background: var(--color-text-inverse); color: var(--color-primary); align-self: start; }
[data-theme='dark'] .card--cta { background: var(--color-primary-highlight); border-color: var(--color-border); }
[data-theme='dark'] .card--cta h3, [data-theme='dark'] .card--cta p { color: var(--color-text); }
[data-theme='dark'] .card--cta .btn { background: var(--color-primary); color: var(--color-text-inverse); }
@media (max-width: 980px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .cards { grid-template-columns: 1fr; } }

/* ============ founders ============ */
.founder {
  display: grid; grid-template-columns: 4fr 7fr; gap: clamp(var(--space-8), 5vw, var(--space-16));
  padding-block: clamp(var(--space-10), 5vw, var(--space-16));
  border-top: 1px solid var(--color-divider);
}
.founder__side { display: flex; flex-direction: column; gap: var(--space-5); }
.founder__portrait {
  width: clamp(120px, 16vw, 168px); aspect-ratio: 1; border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-hover));
  display: grid; place-items: center;
}
.founder__portrait span { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; color: var(--color-text-inverse); letter-spacing: 0.06em; }
[data-theme='dark'] .founder__portrait span { color: var(--color-bg); }
.founder__id h3 { font-size: var(--text-xl); }
.founder__role { margin-top: var(--space-1); font-size: var(--text-sm); font-weight: 600; color: var(--color-bronze); letter-spacing: 0.08em; text-transform: uppercase; }
.founder__body p { color: var(--color-text-muted); }
.founder__body p + p { margin-top: var(--space-4); }
.founder__body p:first-child { color: var(--color-text); }
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-6); }
.chips li {
  font-size: var(--text-xs); font-weight: 500; color: var(--color-text-muted);
  border: 1px solid var(--color-border); border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3); background: var(--color-surface);
}
@media (max-width: 860px) { .founder { grid-template-columns: 1fr; } .founder__side { flex-direction: row; align-items: center; } }

/* ============ network ============ */
.network .grid-2 { align-items: start; }
.network__lede { margin-top: var(--space-6); color: var(--color-text-muted); font-size: var(--text-base); max-width: 46ch; }
.network__list { display: grid; grid-template-columns: 1fr; }
.network__item { border-top: 1px solid var(--color-divider); padding-block: var(--space-6); display: grid; grid-template-columns: 200px 1fr; gap: var(--space-2) var(--space-8); align-items: start; }
.network__item:last-child { border-bottom: 1px solid var(--color-divider); }
.network__item h3 { font-family: var(--font-body); font-size: var(--text-base); font-weight: 600; line-height: 1.35; }
.network__item p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }
@media (max-width: 640px) { .network__item { grid-template-columns: 1fr; } }

/* ============ approach ============ */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(var(--space-6), 4vw, var(--space-12)); }
.principle { border-top: 2px solid var(--color-primary); padding-top: var(--space-5); }
.principle__num { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em; color: var(--color-bronze); }
.principle h3 { font-size: var(--text-lg); margin-top: var(--space-3); }
.principle p { margin-top: var(--space-3); font-size: var(--text-sm); color: var(--color-text-muted); }
@media (max-width: 800px) { .principles { grid-template-columns: 1fr; } }

/* ============ contact ============ */
.contact { background: var(--color-primary); }
[data-theme='dark'] .contact { background: var(--color-surface-2); }
.contact__inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: var(--space-6); padding-block: var(--space-8); }
.contact h2 { color: var(--color-text-inverse); font-size: var(--text-2xl); max-width: 22ch; }
[data-theme='dark'] .contact h2 { color: var(--color-text); }
.eyebrow--light { color: oklch(from var(--color-text-inverse) l c h / 0.7); margin-bottom: 0; }
[data-theme='dark'] .eyebrow--light { color: var(--color-bronze); }
.contact__note { font-size: var(--text-sm); color: oklch(from var(--color-text-inverse) l c h / 0.65); }
[data-theme='dark'] .contact__note { color: var(--color-text-muted); }
.contact__mail { color: var(--color-text-inverse); text-decoration: underline; text-underline-offset: 3px; }
[data-theme='dark'] .contact__mail { color: var(--color-text); }

/* contact form */
.contact__form { width: 100%; max-width: 560px; display: flex; flex-direction: column; gap: var(--space-4); text-align: left; margin-top: var(--space-2); }
.contact__form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.contact__field { display: flex; flex-direction: column; gap: var(--space-1); }
.contact__field label { font-size: var(--text-xs); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; color: oklch(from var(--color-text-inverse) l c h / 0.8); }
[data-theme='dark'] .contact__field label { color: var(--color-text-muted); }
.contact__optional { text-transform: none; letter-spacing: 0; font-weight: 400; color: oklch(from var(--color-text-inverse) l c h / 0.55); }
[data-theme='dark'] .contact__optional { color: var(--color-text-faint); }
.contact__field input,
.contact__field textarea { font: inherit; font-size: var(--text-base); color: var(--color-text-inverse); background: oklch(from var(--color-text-inverse) l c h / 0.08); border: 1px solid oklch(from var(--color-text-inverse) l c h / 0.25); border-radius: 10px; padding: var(--space-3) var(--space-4); transition: border-color 0.2s ease, background 0.2s ease; }
.contact__field textarea { resize: vertical; min-height: 120px; }
.contact__field input:focus,
.contact__field textarea:focus { outline: none; border-color: oklch(from var(--color-text-inverse) l c h / 0.7); background: oklch(from var(--color-text-inverse) l c h / 0.12); }
[data-theme='dark'] .contact__field input,
[data-theme='dark'] .contact__field textarea { color: var(--color-text); background: oklch(from var(--color-text) l c h / 0.06); border-color: var(--color-divider); }
[data-theme='dark'] .contact__field input:focus,
[data-theme='dark'] .contact__field textarea:focus { border-color: var(--color-bronze); }
.contact__submit { align-self: center; margin-top: var(--space-2); border: none; cursor: pointer; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
@media (max-width: 640px) {
  .contact__form-row { grid-template-columns: 1fr; }
}
[data-theme='dark'] .btn--invert { background: var(--color-primary); color: var(--color-text-inverse); }

/* ============ footer ============ */
.footer { border-top: 1px solid var(--color-divider); padding-block: var(--space-8); }
.footer__inner { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-8); justify-content: space-between; }
.footer p { font-size: var(--text-xs); color: var(--color-text-faint); }
.footer__disclaimer { flex-basis: 100%; max-width: 72ch; margin-top: var(--space-2); line-height: 1.6; }

/* ============ reveal ============ */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.is-visible { opacity: 1; transform: none; }