/* =========================================================
   AHEAD STRATEGY — Design System
   Premium APAC & MENA advisory. Navy/slate + refined blue,
   with a restrained warm-gold accent for key highlights.
   ========================================================= */

/* ---------- Type Scale ---------- */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.3rem + 2.4vw, 3.4rem);
  --text-3xl: clamp(2.5rem, 1.2rem + 4vw, 4.75rem);

  /* ---------- Spacing (4px base) ---------- */
  --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;

  /* ---------- Radius ---------- */
  --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;  --radius-full: 9999px;

  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  /* ---------- Content widths ---------- */
  --content-narrow: 680px;
  --content-default: 1000px;
  --content-wide: 1240px;

  /* ---------- Fonts ---------- */
  --font-display: 'Cabinet Grotesk', 'Georgia', serif;
  --font-body: 'Satoshi', 'Inter', system-ui, sans-serif;
}

/* ---------- Light Mode ---------- */
:root, [data-theme='light'] {
  --color-bg: #f6f7f9;
  --color-surface: #ffffff;
  --color-surface-2: #fbfcfd;
  --color-surface-offset: #eef1f5;
  --color-surface-dynamic: #e5e9ef;
  --color-divider: #e0e4ea;
  --color-border: #d3d9e1;

  --color-text: #10203a;
  --color-text-muted: #5b6b82;
  --color-text-faint: #9aa7ba;
  --color-text-inverse: #f6f7f9;

  --color-ink: #0a1628;          /* deep navy — dark sections */
  --color-ink-2: #0f2038;

  --color-primary: #1f5fbf;      /* refined blue */
  --color-primary-hover: #1a4fa0;
  --color-primary-active: #143d7d;
  --color-primary-soft: #e7effb;

  --color-accent: #c99a3f;       /* restrained warm gold */
  --color-accent-hover: #b3862f;

  --shadow-sm: 0 1px 2px rgba(16,32,58,0.06);
  --shadow-md: 0 6px 20px rgba(16,32,58,0.08);
  --shadow-lg: 0 20px 50px rgba(16,32,58,0.14);

  --hairline: rgba(16,32,58,0.10);
}

/* ---------- Dark Mode ---------- */
[data-theme='dark'] {
  --color-bg: #0a1120;
  --color-surface: #0f1a2e;
  --color-surface-2: #13223a;
  --color-surface-offset: #16243d;
  --color-surface-dynamic: #1c2e4b;
  --color-divider: #1e3050;
  --color-border: #263c60;

  --color-text: #e7ecf3;
  --color-text-muted: #97a6bd;
  --color-text-faint: #5f708a;
  --color-text-inverse: #0a1120;

  --color-ink: #060c17;
  --color-ink-2: #0b1526;

  --color-primary: #5b93e0;
  --color-primary-hover: #7aa9e8;
  --color-primary-active: #93baf0;
  --color-primary-soft: #14243d;

  --color-accent: #d9ac57;
  --color-accent-hover: #e4bd72;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.45);
  --shadow-lg: 0 20px 50px rgba(0,0,0,0.55);

  --hairline: rgba(255,255,255,0.09);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0a1120; --color-surface: #0f1a2e; --color-surface-2: #13223a;
    --color-surface-offset: #16243d; --color-surface-dynamic: #1c2e4b;
    --color-divider: #1e3050; --color-border: #263c60;
    --color-text: #e7ecf3; --color-text-muted: #97a6bd; --color-text-faint: #5f708a;
    --color-text-inverse: #0a1120; --color-ink: #060c17; --color-ink-2: #0b1526;
    --color-primary: #5b93e0; --color-primary-hover: #7aa9e8; --color-primary-active: #93baf0;
    --color-primary-soft: #14243d; --color-accent: #d9ac57; --color-accent-hover: #e4bd72;
    --hairline: rgba(255,255,255,0.09);
  }
}

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

html {
  -webkit-text-size-adjust: none; text-size-adjust: none;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility; scroll-behavior: smooth;
  scroll-padding-top: var(--space-24);
}

body {
  min-height: 100dvh; line-height: 1.65;
  font-family: var(--font-body); font-size: var(--text-base);
  color: var(--color-text); background-color: var(--color-bg);
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}

img, picture, video, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'], ol[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display); font-weight: 700;
  text-wrap: balance; line-height: 1.08; letter-spacing: -0.02em;
  color: var(--color-text);
}
p, li { text-wrap: pretty; }

a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; }

::selection { background: color-mix(in oklab, var(--color-primary) 22%, transparent); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important; scroll-behavior: auto !important;
  }
}

a, button, [role='button'], input, textarea, select {
  transition: color var(--transition-interactive), background var(--transition-interactive),
    border-color var(--transition-interactive), box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* =========================================================
   LAYOUT PRIMITIVES
   ========================================================= */
.wrap { width: 100%; max-width: var(--content-wide); margin-inline: auto; padding-inline: var(--space-6); }
.wrap--default { max-width: var(--content-default); }
.wrap--narrow { max-width: var(--content-narrow); }

.section { padding-block: clamp(var(--space-16), 9vw, var(--space-32)); }
.section--tight { padding-block: clamp(var(--space-12), 6vw, var(--space-20)); }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-body); font-size: var(--text-xs); font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--color-primary);
}
.eyebrow::before {
  content: ''; width: 24px; height: 1px; background: var(--color-accent);
}
.eyebrow--light { color: var(--color-accent); }

.lead { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 60ch; line-height: 1.55; }

/* =========================================================
   NAV
   ========================================================= */
.header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-interactive), background var(--transition-interactive);
}
.header--scrolled { border-bottom-color: var(--hairline); box-shadow: var(--shadow-sm); }

.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.nav__brand { display: flex; align-items: center; gap: var(--space-3); color: var(--color-text); }
.nav__logo { height: 30px; width: auto; display: block; }
/* Header logo swaps with theme so it always has strong contrast */
.nav__logo--light { display: none; }
[data-theme='dark'] .nav__logo--dark { display: none; }
[data-theme='dark'] .nav__logo--light { display: block; }
:root:not([data-theme]) .nav__logo--light { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .nav__logo--dark { display: none; }
  :root:not([data-theme]) .nav__logo--light { display: block; }
}
.nav__links { display: flex; align-items: center; gap: var(--space-8); }
.nav__link {
  font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted);
  position: relative; padding-block: var(--space-2);
}
.nav__link:hover { color: var(--color-text); }
.nav__link--active { color: var(--color-text); }
.nav__link--active::after {
  content: ''; position: absolute; left: 0; bottom: -2px; width: 100%; height: 2px;
  background: var(--color-accent); border-radius: var(--radius-full);
}
.nav__actions { display: flex; align-items: center; gap: var(--space-4); }

.theme-toggle {
  display: inline-grid; place-items: center; width: 40px; height: 40px;
  border-radius: var(--radius-full); color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.theme-toggle:hover { color: var(--color-text); border-color: var(--color-primary); }

.nav__burger { display: none; width: 40px; height: 40px; place-items: center; color: var(--color-text); }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-size: var(--text-sm); font-weight: 600; padding: 0.82rem 1.5rem;
  border-radius: var(--radius-full); border: 1px solid transparent; line-height: 1;
}
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--ghost { border-color: var(--color-border); color: var(--color-text); }
.btn--ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn--light { background: #fff; color: var(--color-ink); }
.btn--light:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn--outline-light { border-color: rgba(255,255,255,0.35); color: #fff; }
.btn--outline-light:hover { border-color: #fff; background: rgba(255,255,255,0.08); }
.btn svg { width: 16px; height: 16px; }

/* =========================================================
   HERO
   ========================================================= */
.hero { position: relative; overflow: hidden; background: var(--color-ink); color: #eef3fb; }
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.55; }
.hero__bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,12,23,0.55) 0%, rgba(6,12,23,0.35) 40%, rgba(6,12,23,0.92) 100%);
}
.hero__inner { position: relative; z-index: 1; padding-block: clamp(var(--space-24), 16vw, 11rem) var(--space-24); }
.hero h1 {
  font-size: var(--text-3xl); color: #fff; max-width: 16ch; margin-top: var(--space-6);
}
.hero__accent { color: var(--color-accent); }
.hero p { margin-top: var(--space-6); font-size: var(--text-lg); color: #c3d0e4; max-width: 52ch; line-height: 1.5; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-10); }
.hero__stats {
  display: flex; flex-wrap: wrap; gap: var(--space-10); margin-top: var(--space-20);
  padding-top: var(--space-8); border-top: 1px solid rgba(255,255,255,0.14);
}
.hero__stat .n { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; color: #fff; }
.hero__stat .l { font-size: var(--text-sm); color: #9fb1cc; margin-top: var(--space-1); }

/* =========================================================
   SECTION HEADINGS
   ========================================================= */
.section-head { max-width: 62ch; }
.section-head h2 { font-size: var(--text-2xl); margin-top: var(--space-4); }
.section-head p { margin-top: var(--space-5); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }

/* =========================================================
   CONVICTION / SPLIT
   ========================================================= */
.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(var(--space-10), 6vw, var(--space-24)); align-items: center; }
.split__media { position: relative; }
.split__media img { border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
.split__media--framed { border: 1px solid var(--hairline); border-radius: var(--radius-xl); overflow: hidden; }
.split h2 { font-size: var(--text-2xl); margin-top: var(--space-4); }
.split p { margin-top: var(--space-5); color: var(--color-text-muted); }
.split p + p { margin-top: var(--space-4); }
.split strong { color: var(--color-text); font-weight: 600; }

/* =========================================================
   PILLAR CARDS
   ========================================================= */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); margin-top: var(--space-16); }
.pillar {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg); padding: var(--space-8);
  display: flex; flex-direction: column; gap: var(--space-4);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
}
.pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: color-mix(in oklab, var(--color-primary) 40%, var(--color-border)); }
.pillar__num { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 700; color: var(--color-accent); letter-spacing: 0.1em; }
.pillar__icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: var(--radius-md); background: var(--color-primary-soft); color: var(--color-primary); }
.pillar__icon svg { width: 24px; height: 24px; }
.pillar h3 { font-size: var(--text-lg); }
.pillar p { color: var(--color-text-muted); font-size: var(--text-sm); }
.pillar__outcome { margin-top: auto; padding-top: var(--space-4); border-top: 1px solid var(--color-divider); font-size: var(--text-sm); }
.pillar__outcome span { display: block; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-text-faint); margin-bottom: var(--space-1); }
.pillar__outcome strong { color: var(--color-text); font-weight: 600; }

/* =========================================================
   ENGAGEMENT
   ========================================================= */
.engage-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); margin-top: var(--space-16); }
.engage-card {
  border: 1px solid var(--color-divider); border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8); background: var(--color-surface);
  border-top: 3px solid var(--color-primary);
}
.engage-card--gold { border-top-color: var(--color-accent); }
.engage-card h3 { font-size: var(--text-xl); }
.engage-card__sub { color: var(--color-text-muted); margin-top: var(--space-3); font-size: var(--text-base); }
.engage-list { list-style: none; margin-top: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); }
.engage-list li { display: flex; gap: var(--space-3); font-size: var(--text-sm); align-items: flex-start; }
.engage-list li::before { content: ''; flex: none; width: 6px; height: 6px; margin-top: 0.55em; border-radius: 50%; background: var(--color-accent); }
.engage-card__best { margin-top: var(--space-8); padding-top: var(--space-5); border-top: 1px solid var(--color-divider); font-size: var(--text-sm); color: var(--color-text-muted); }
.engage-card__best strong { color: var(--color-text); }

/* =========================================================
   DARK BAND / CTA
   ========================================================= */
.band { position: relative; overflow: hidden; background: var(--color-ink); color: #eef3fb; }
.band__bg { position: absolute; inset: 0; z-index: 0; }
.band__bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.28; }
.band__bg::after { content:''; position:absolute; inset:0; background: linear-gradient(120deg, rgba(6,12,23,0.9), rgba(6,12,23,0.6)); }
.band__inner { position: relative; z-index: 1; }
.band h2 { color: #fff; font-size: var(--text-2xl); }
.band p { color: #c3d0e4; margin-top: var(--space-5); font-size: var(--text-lg); max-width: 54ch; }
.band .eyebrow { color: var(--color-accent); }

.outcome-callout {
  background: var(--color-surface-offset); border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-16)); text-align: center;
  border: 1px solid var(--color-divider);
}
.outcome-callout p { font-size: var(--text-lg); max-width: 60ch; margin-inline: auto; color: var(--color-text); line-height: 1.5; }
.outcome-callout strong { color: var(--color-primary); }

/* =========================================================
   FEATURE / DEEP SERVICE ROWS
   ========================================================= */
.service-row { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(var(--space-8), 6vw, var(--space-20)); align-items: center; padding-block: clamp(var(--space-12), 7vw, var(--space-24)); }
.service-row + .service-row { border-top: 1px solid var(--color-divider); }
.service-row--rev .service-row__media { order: -1; }
.service-row__media img { border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
.service-row__panel { background: var(--color-surface); border: 1px solid var(--color-divider); border-radius: var(--radius-xl); padding: clamp(var(--space-8), 4vw, var(--space-12)); box-shadow: var(--shadow-md); }
.service-row h3 { font-size: var(--text-xl); margin-top: var(--space-4); }
.service-row > div > p { margin-top: var(--space-5); color: var(--color-text-muted); }
.deliverables { margin-top: var(--space-8); display: grid; gap: var(--space-3); }
.deliverables li { display: flex; gap: var(--space-3); font-size: var(--text-sm); align-items: flex-start; }
.deliverables svg { flex: none; width: 20px; height: 20px; color: var(--color-primary); margin-top: 2px; }
.service-outcome { margin-top: var(--space-8); padding: var(--space-5) var(--space-6); background: var(--color-primary-soft); border-radius: var(--radius-md); font-size: var(--text-sm); }
.service-outcome span { display:block; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-primary); font-weight: 700; margin-bottom: var(--space-1); }

/* =========================================================
   ABOUT
   ========================================================= */
.about-hero { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: clamp(var(--space-10),6vw,var(--space-20)); align-items: center; }
.about-hero__media img { border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); margin-top: var(--space-16); }
.value { padding: var(--space-6); }
.value__num { font-family: var(--font-display); color: var(--color-accent); font-size: var(--text-lg); font-weight: 700; }
.value h3 { font-size: var(--text-lg); margin-top: var(--space-3); }
.value p { color: var(--color-text-muted); font-size: var(--text-sm); margin-top: var(--space-3); }
.markets { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-8); }
.chip { font-size: var(--text-sm); padding: 0.5rem 1rem; border-radius: var(--radius-full); border: 1px solid var(--color-border); color: var(--color-text-muted); }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(var(--space-10), 6vw, var(--space-20)); align-items: center; }
.contact-card {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl); padding: clamp(var(--space-8), 4vw, var(--space-12));
  box-shadow: var(--shadow-md);
}
.contact-links { display: flex; flex-direction: column; gap: var(--space-4); margin-top: var(--space-8); }
.contact-link {
  display: flex; align-items: center; gap: var(--space-4); padding: var(--space-5) var(--space-6);
  border: 1px solid var(--color-divider); border-radius: var(--radius-lg); background: var(--color-surface-2);
}
.contact-link:hover { border-color: var(--color-primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.contact-link__icon { flex: none; width: 46px; height: 46px; display: grid; place-items: center; border-radius: var(--radius-md); background: var(--color-primary-soft); color: var(--color-primary); }
.contact-link__icon svg { width: 22px; height: 22px; }
.contact-link__label { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-text-faint); }
.contact-link__value { font-weight: 600; color: var(--color-text); }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { background: var(--color-ink); color: #b9c6db; padding-block: var(--space-16) var(--space-8); }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-10); padding-bottom: var(--space-12); border-bottom: 1px solid rgba(255,255,255,0.12); }
.footer__logo { height: 32px; width: auto; display: block; margin-bottom: var(--space-5); }
.footer__blurb { max-width: 34ch; font-size: var(--text-sm); color: #8ea1bd; }
.footer h4 { font-family: var(--font-body); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.14em; color: #7d90ad; margin-bottom: var(--space-4); font-weight: 600; }
.footer__links { display: flex; flex-direction: column; gap: var(--space-3); }
.footer__links a { font-size: var(--text-sm); color: #b9c6db; }
.footer__links a:hover { color: #fff; }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; padding-top: var(--space-8); font-size: var(--text-xs); color: #6f83a0; flex-wrap: wrap; gap: var(--space-3); }

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px) {
  .split, .about-hero, .contact-grid { grid-template-columns: 1fr; }
  .pillars, .value-grid { grid-template-columns: 1fr; }
  .engage-grid { grid-template-columns: 1fr; }
  .service-row { grid-template-columns: 1fr; }
  .service-row--rev .service-row__media { order: 0; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .about-hero__media { order: -1; }
}

@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__links.is-open {
    display: flex; flex-direction: column; position: absolute; top: 76px; left: 0; right: 0;
    background: var(--color-surface); border-bottom: 1px solid var(--color-divider);
    padding: var(--space-6); gap: var(--space-5); box-shadow: var(--shadow-lg);
  }
  .nav__burger { display: grid; }
  .hero__stats { gap: var(--space-6); }
  .footer__top { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}