/* ============================================
   PROMETHEUS AI — style.css
   Dark-first elite design system
   ============================================ */

/* --- Font Loading handled in HTML head --- */

/* === DESIGN TOKENS === */
:root {
  /* Typography Families */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Fluid Type Scale */
  --text-xs: clamp(0.6875rem, 0.65rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.75rem + 0.3vw, 0.9375rem);
  --text-base: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.2vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.4rem + 2vw, 3rem);
  --text-3xl: clamp(2.5rem, 1.5rem + 3vw, 4rem);

  /* 4px Spacing */
  --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: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 250ms var(--ease-out);
  --transition-slow: 400ms var(--ease-out);

  /* Content Widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Shadows (dark mode tuned) */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
}

/* === DARK PALETTE (default) === */
:root,
[data-theme="dark"] {
  --color-bg: #0A0A0B;
  --color-surface: #141416;
  --color-surface-2: #1C1C1F;
  --color-surface-offset: #111113;
  --color-border: #2A2A2D;
  --color-divider: #1F1F22;

  --color-text: #E8E6E1;
  --color-text-muted: #8A8A8A;
  --color-text-faint: #5A5A5A;
  --color-text-inverse: #0A0A0B;

  --color-accent: #E8732A;
  --color-accent-hover: #F28C45;
  --color-accent-active: #D05F1A;
  --color-accent-subtle: rgba(232, 115, 42, 0.10);

  --color-teal: #2A6B5A;
  --color-teal-hover: #348A72;
  --color-teal-subtle: rgba(42, 107, 90, 0.10);

  --color-success: #3D8B3D;
  --color-error: #C4443A;

  /* Light section inline vars */
  --light-bg: #F8F8F7;
  --light-surface: #FFFFFF;
  --light-text: #1A1A1A;
  --light-text-muted: #5A5A58;
  --light-border: #E5E5E3;
}

/* === LIGHT PALETTE === */
[data-theme="light"] {
  --color-bg: #F8F8F7;
  --color-surface: #FFFFFF;
  --color-surface-2: #F0F0EE;
  --color-surface-offset: #EBEBEA;
  --color-border: #D8D8D5;
  --color-divider: #E5E5E3;

  --color-text: #1A1A1A;
  --color-text-muted: #5A5A58;
  --color-text-faint: #9A9A98;
  --color-text-inverse: #F8F8F7;

  --color-accent: #D05F1A;
  --color-accent-hover: #B8521A;
  --color-accent-active: #A04510;
  --color-accent-subtle: rgba(208, 95, 26, 0.08);

  --color-teal: #1E5A4B;
  --color-teal-hover: #2A6B5A;
  --color-teal-subtle: rgba(30, 90, 75, 0.08);

  --color-success: #2D6B2D;
  --color-error: #B03830;

  --light-bg: #F8F8F7;
  --light-surface: #FFFFFF;
  --light-text: #1A1A1A;
  --light-text-muted: #5A5A58;
  --light-border: #E5E5E3;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.14);
}

/* System preference fallback */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg: #F8F8F7;
    --color-surface: #FFFFFF;
    --color-surface-2: #F0F0EE;
    --color-surface-offset: #EBEBEA;
    --color-border: #D8D8D5;
    --color-divider: #E5E5E3;
    --color-text: #1A1A1A;
    --color-text-muted: #5A5A58;
    --color-text-faint: #9A9A98;
    --color-text-inverse: #F8F8F7;
    --color-accent: #D05F1A;
    --color-accent-hover: #B8521A;
    --color-accent-active: #A04510;
    --color-accent-subtle: rgba(208, 95, 26, 0.08);
    --color-teal: #1E5A4B;
    --color-teal-hover: #2A6B5A;
    --color-teal-subtle: rgba(30, 90, 75, 0.08);
    --color-success: #2D6B2D;
    --color-error: #B03830;
    --light-bg: #F8F8F7;
    --light-surface: #FFFFFF;
    --light-text: #1A1A1A;
    --light-text-muted: #5A5A58;
    --light-border: #E5E5E3;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.14);
  }
}


/* === GLOBAL TYPOGRAPHY === */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--text-3xl); line-height: 1.05; }
h2 { font-size: var(--text-2xl); line-height: 1.1; }
h3 { font-size: var(--text-xl); line-height: 1.15; }
h4 { font-size: var(--text-lg); line-height: 1.2; }

.font-mono { font-family: var(--font-mono); }
.font-display { font-family: var(--font-display); }

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

.container--narrow {
  max-width: var(--content-default);
}

.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.section--dark {
  background: var(--color-bg);
  color: var(--color-text);
}

.section--light {
  background: var(--light-bg);
  color: var(--light-text);
}

.section--light .text-muted {
  color: var(--light-text-muted);
}

.section--accent-tint {
  background: linear-gradient(
    135deg,
    var(--color-bg) 0%,
    rgba(232, 115, 42, 0.04) 50%,
    var(--color-bg) 100%
  );
}

/* Section label */
.section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  display: block;
}

.section--light .section-label {
  color: var(--color-teal);
}

/* === SKIP LINK === */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  z-index: 200;
  text-decoration: none;
}
.skip-link:focus {
  top: var(--space-2);
}

/* === HEADER / NAV === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: var(--space-4);
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: transform var(--transition-base),
              border-color var(--transition-base),
              background var(--transition-base);
}

[data-theme="light"] .site-header {
  background: rgba(248, 248, 247, 0.88);
}

.site-header.scrolled {
  border-bottom-color: var(--color-border);
}

.site-header.hidden {
  transform: translateY(-100%);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}

.logo svg {
  width: 32px;
  height: 32px;
}

.logo img {
  width: 36px;
  height: auto;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-text);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.nav-cta {
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-2) var(--space-5);
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

/* Mobile nav toggle */
.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.mobile-nav.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.mobile-nav a:hover {
  color: var(--color-accent);
}


/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
  line-height: 1.4;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(232, 115, 42, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-text-muted);
  background: var(--color-surface-2);
}

.section--light .btn--outline {
  color: var(--light-text);
  border-color: var(--light-border);
}

.section--light .btn--outline:hover {
  border-color: var(--light-text-muted);
  background: var(--light-surface);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  padding: var(--space-2) 0;
}

.btn--ghost:hover {
  color: var(--color-accent-hover);
}

.btn--ghost svg {
  transition: transform var(--transition-fast);
}

.btn--ghost:hover svg {
  transform: translateX(3px);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* === HERO === */
.hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: calc(64px + var(--space-12));
  padding-bottom: var(--space-16);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 80%, rgba(232, 115, 42, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(42, 107, 90, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse 100% 80% at 50% 50%, rgba(232, 115, 42, 0.02) 0%, transparent 70%);
}

[data-theme="light"] .hero-bg {
  background:
    radial-gradient(ellipse 80% 50% at 20% 80%, rgba(232, 115, 42, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(42, 107, 90, 0.03) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid rgba(232, 115, 42, 0.15);
  margin-bottom: var(--space-8);
}

.hero h1 {
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
  line-height: 1.5;
}

/* === CREDIBILITY BAR === */
.credibility {
  padding-block: var(--space-10);
  border-top: 1px solid var(--light-border);
  border-bottom: 1px solid var(--light-border);
}

.credibility-partners {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
  color: var(--light-text-muted);
}

.credibility-partners span {
  white-space: nowrap;
}

.credibility-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--light-text-muted);
  opacity: 0.5;
  flex-shrink: 0;
}

.credibility-metrics {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.metric {
  text-align: center;
}

.metric-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--light-text);
  line-height: 1.1;
}

.metric-label {
  font-size: var(--text-xs);
  color: var(--light-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: var(--space-1);
}


/* === SOLUTIONS GRID === */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.solution-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.solution-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(232, 115, 42, 0.08);
}

.solution-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  margin-bottom: var(--space-5);
  flex-shrink: 0;
}

.solution-icon svg {
  width: 22px;
  height: 22px;
}

.solution-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.solution-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: var(--space-4);
  flex: 1;
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.solution-tag {
  font-family: var(--font-mono);
  font-size: clamp(0.625rem, 0.6rem + 0.15vw, 0.6875rem);
  color: var(--color-text-faint);
  padding: var(--space-1) var(--space-2);
  background: var(--color-surface-2);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

/* === ABOUT (light) === */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

.about-body {
  font-size: var(--text-base);
  color: var(--light-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-8);
}

.values-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.value-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--light-text);
}

.value-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-teal);
  flex-shrink: 0;
}

.about-callout {
  background: var(--light-surface);
  border-left: 3px solid var(--color-accent);
  padding: var(--space-8);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  box-shadow: var(--shadow-md);
}

.about-callout blockquote {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--light-text);
  line-height: 1.5;
  margin: 0;
}


/* === PROGRAMS === */
.programs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.program-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.program-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-teal);
  margin-bottom: var(--space-4);
}

.program-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

.program-card > p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: var(--space-6);
}

.program-details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.program-detail {
  font-family: var(--font-mono);
  font-size: clamp(0.625rem, 0.6rem + 0.15vw, 0.6875rem);
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.eligibility-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.eligibility-badge {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-teal);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-teal-subtle);
  background: var(--color-teal-subtle);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.program-courses {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
  margin-bottom: var(--space-6);
}

.program-courses p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.program-courses ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.program-courses li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.program-courses li + li::before {
  content: '·';
  margin-right: var(--space-2);
  color: var(--color-text-faint);
}


/* === PARTNERSHIPS (light) === */
.partnership-content {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.partnership-content h2 {
  margin-bottom: var(--space-4);
}

.partnership-body {
  font-size: var(--text-base);
  color: var(--light-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-8);
}

.partnership-footer {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--light-border);
  font-size: var(--text-sm);
  color: var(--light-text-muted);
}


/* === LEADERSHIP === */
.leadership-featured {
  margin-bottom: var(--space-10);
}

.leader-featured {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  align-items: start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.leader-avatar {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-lg);
  background: var(--color-accent-subtle);
  border: 2px solid var(--color-accent);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-accent);
  flex-shrink: 0;
}

.leader-info h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-1);
}

.leader-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.leader-bio {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.leader-team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.leader-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}

.leader-card .leader-avatar {
  width: 56px;
  height: 56px;
  font-size: var(--text-base);
  margin-inline: auto;
  margin-bottom: var(--space-4);
  border-width: 1px;
}

.leader-card h4 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.leader-card .leader-title {
  margin-bottom: var(--space-3);
}

.leader-card p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}


/* === WHY PROMETHEUS === */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.why-item {
  text-align: center;
  padding: var(--space-6);
}

.why-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  margin-inline: auto;
  margin-bottom: var(--space-4);
}

.why-icon svg {
  width: 24px;
  height: 24px;
}

.why-item h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.why-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
}


/* === CONTACT (light) === */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-10);
  align-items: start;
}

.contact-form {
  background: var(--light-surface);
  border: 1px solid var(--light-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--light-text);
  margin-bottom: var(--space-2);
}

.form-group label .required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--light-bg);
  border: 1px solid var(--light-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--light-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--light-text-muted);
  opacity: 0.6;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%235A5A58' stroke-width='2'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: var(--space-8);
}

.form-group.honeypot,
.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  height: 0;
  overflow: hidden;
}

.form-submit {
  width: 100%;
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-status {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(61, 139, 61, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(61, 139, 61, 0.2);
}

.form-status.error {
  display: block;
  background: rgba(196, 68, 58, 0.1);
  color: var(--color-error);
  border: 1px solid rgba(196, 68, 58, 0.2);
}

/* Office info sidebar */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.info-card {
  background: var(--light-surface);
  border: 1px solid var(--light-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.info-card h4 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--light-text);
  margin-bottom: var(--space-4);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--light-text-muted);
  margin-bottom: var(--space-3);
  line-height: 1.5;
}

.info-item:last-child {
  margin-bottom: 0;
}

.info-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-teal);
}

.info-item a {
  color: var(--color-accent);
  text-decoration: none;
}

.info-item a:hover {
  text-decoration: underline;
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--light-border);
  color: var(--light-text-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-subtle);
}

.social-link svg {
  width: 18px;
  height: 18px;
}


/* === FOOTER === */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-12);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.8fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

.footer-brand .logo {
  margin-bottom: var(--space-4);
}

.footer-tagline {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-text-muted);
}

.footer-nav h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-text);
}

.footer-social-group h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-legal {
  display: flex;
  gap: var(--space-4);
}

.footer-legal a {
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-text-muted);
}


/* === SCROLL REVEAL === */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }


/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .leader-team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .mobile-toggle { display: flex; }

  .hero {
    min-height: auto;
    padding-top: calc(64px + var(--space-8));
    padding-bottom: var(--space-12);
  }

  .hero h1 {
    font-size: var(--text-2xl);
  }

  .hero-subtitle {
    font-size: var(--text-base);
  }

  .btn-group {
    flex-direction: column;
    align-items: center;
  }

  .btn-group .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  .credibility-metrics {
    gap: var(--space-6);
  }

  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-callout {
    margin-top: var(--space-4);
  }

  .programs-grid {
    grid-template-columns: 1fr;
  }

  .why-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .why-item {
    text-align: left;
    padding: var(--space-4);
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
  }

  .why-item .why-icon {
    margin: 0;
    flex-shrink: 0;
  }

  .why-item div {
    flex: 1;
  }

  .leader-featured {
    grid-template-columns: 1fr;
  }

  .leader-avatar {
    justify-self: start;
  }

  .leader-team-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}