/* Art direction: Premium gas E&P company — McKinsey-level authority, modern, conversion-focused
   Palette: Deep Navy (#152d50) + Burnt Orange (#d4731a) + Dark Teal (#1b4332)
   Typography: Aptos Mono (headings) + Plus Jakarta Sans (body)
   Density: spacious — corporate B2B with strong visual rhythm and clear CTAs */

/* ===== SELF-HOSTED FONTS ===== */
@font-face {
  font-family: 'Aptos Mono';
  src: url('./assets/fonts/Aptos-Mono.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Aptos Mono';
  src: url('./assets/fonts/Aptos-Mono-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Aptos Mono';
  src: url('./assets/fonts/Aptos-Mono-Italic.ttf') format('truetype');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Aptos Mono';
  src: url('./assets/fonts/Aptos-Mono-Bold-Italic.ttf') format('truetype');
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}

/* ===== DESIGN TOKENS ===== */
:root {
  --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,    5rem);

  --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;

  --font-display: 'Aptos Mono', 'Courier New', monospace;
  --font-body: 'Plus Jakarta Sans', 'Helvetica Neue', sans-serif;

  --color-bg:             #f8f9fa;
  --color-surface:        #ffffff;
  --color-surface-2:      #f1f3f5;
  --color-divider:        #dee2e6;
  --color-border:         #ced4da;
  --color-text:           #0c1f3d;
  --color-text-muted:     #4a5568;
  --color-text-faint:     #a0aec0;
  --color-text-inverse:   #ffffff;
  --color-primary:        #0c1f3d;
  --color-accent:         #d4731a;
  --color-accent-hover:   #b8621a;
  --color-accent-highlight: #fde8d0;
  --color-secondary:      #1b4332;
  --color-dark-bg:        #152d50;
  --color-dark-surface:   #1a3560;
  --color-dark-surface-2: #204070;

  --radius-sm: 0.25rem; --radius-md: 0.375rem;
  --radius-lg: 0.5rem; --radius-xl: 0.75rem;
  --radius-full: 9999px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 2px rgba(12, 31, 61, 0.06);
  --shadow-md: 0 4px 12px rgba(12, 31, 61, 0.08);
  --shadow-lg: 0 12px 32px rgba(12, 31, 61, 0.12);
  --content-wide: 1200px;
}

/* ===== GLOBAL ===== */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* ===== NAVIGATION ===== */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: #ffffff;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              background 0.35s, box-shadow 0.35s;
}
.site-nav--scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.1); }
.site-nav--hidden { transform: translateY(-100%); }
.nav-inner {
  max-width: var(--content-wide); margin-inline: auto;
  padding: var(--space-4);
  display: flex; align-items: center; justify-content: space-between;
}
@media (min-width: 768px) { .nav-inner { padding: var(--space-4) var(--space-8); } }
.nav-logo {
  display: flex; align-items: center; gap: var(--space-3);
  text-decoration: none; color: var(--color-primary);
}
.nav-logo-img {
  height: 89px; width: auto; display: block; object-fit: contain; image-rendering: -webkit-optimize-contrast;
}
@media (min-width: 768px) { .nav-logo-img { height: 102px; } }
.nav-logo-text {
  font-family: var(--font-body); font-weight: 800;
  font-size: var(--text-lg); letter-spacing: 0.06em; color: var(--color-primary);
}
.nav-links {
  display: none; list-style: none; gap: var(--space-5); align-items: center;
}
@media (min-width: 1000px) { .nav-links { display: flex; } }
.nav-links a {
  color: var(--color-text-muted); text-decoration: none;
  font-size: var(--text-sm); font-weight: 500;
  transition: color var(--transition-interactive); position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--color-primary); }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--color-accent);
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.btn-nav {
  display: inline-flex; align-items: center;
  padding: var(--space-2) var(--space-5);
  background: var(--color-accent); color: #ffffff !important;
  font-family: var(--font-body); font-size: var(--text-xs);
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  border-radius: var(--radius-md); text-decoration: none;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}
.btn-nav:hover { background: var(--color-accent-hover); transform: translateY(-1px); }

.nav-toggle {
  display: flex; flex-direction: column; gap: 5px;
  padding: var(--space-2); cursor: pointer;
}
@media (min-width: 1000px) { .nav-toggle { display: none; } }
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--color-primary);
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255, 255, 255, 0.98); z-index: 99;
  flex-direction: column; align-items: center; justify-content: center; gap: var(--space-8);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--color-primary); text-decoration: none; font-family: var(--font-body);
  font-size: var(--text-xl); font-weight: 700; transition: color var(--transition-interactive);
}
.mobile-menu a:hover { color: var(--color-accent); }

/* ===== HERO ===== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  background: var(--color-dark-bg); overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 1; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.45; }
.hero-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(180deg, rgba(21,45,80,0.5) 0%, rgba(21,45,80,0.65) 50%, rgba(21,45,80,0.88) 100%);
}
.hero-content {
  position: relative; z-index: 3;
  max-width: var(--content-wide); margin-inline: auto;
  padding: clamp(var(--space-32), 15vh, var(--space-32)) var(--space-4) var(--space-16);
}
@media (min-width: 768px) { .hero-content { padding-inline: var(--space-8); } }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-body); font-size: var(--text-xs);
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--color-accent); margin-bottom: var(--space-6);
}
.hero-eyebrow::before {
  content: ''; display: block; width: 32px; height: 2px; background: var(--color-accent);
}
.hero h1 {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 700; letter-spacing: -0.04em;
  color: #fff; margin-bottom: var(--space-6);
}
@media (min-width: 768px) { .hero h1 { white-space: nowrap; } }
.hero-sub {
  font-size: var(--text-base); color: rgba(255,255,255,0.7);
  max-width: 55ch; line-height: 1.7; margin-bottom: var(--space-8);
}
.hero-cta-group {
  display: flex; flex-direction: column; gap: var(--space-3); align-items: stretch;
}
@media (min-width: 480px) {
  .hero-cta-group { flex-direction: row; gap: var(--space-4); align-items: center; }
}
.hero-cta {
  display: inline-flex; align-items: center; justify-content: center;
  padding: var(--space-4) var(--space-8);
  background: var(--color-accent); color: #fff;
  font-family: var(--font-body); font-size: var(--text-sm); font-weight: 700;
  text-decoration: none; border-radius: var(--radius-md);
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.hero-cta:hover {
  background: var(--color-accent-hover); transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212,115,26,0.3);
}
.hero-cta svg { width: 16px; height: 16px; transition: transform var(--transition-interactive); }
.hero-cta:hover svg { transform: translateX(3px); }
.hero-cta-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: var(--space-4) var(--space-8);
  color: #fff; text-decoration: none;
  font-family: var(--font-body); font-size: var(--text-sm); font-weight: 700;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive), border-color var(--transition-interactive), background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.hero-cta-secondary:hover { color: #fff; border-color: var(--color-accent-hover); background: rgba(212,115,26,0.12); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,115,26,0.2); }

/* Hero Stats */
.hero-stats {
  position: relative; z-index: 3;
  max-width: var(--content-wide); margin-inline: auto;
  padding: 0 var(--space-4) var(--space-12);
  display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6);
}
@media (min-width: 768px) {
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
    padding-inline: var(--space-8);
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-8);
  }
}
.stat-item { text-align: center; }
.stat-number {
  font-family: var(--font-body); font-size: var(--text-xl);
  font-weight: 800; color: var(--color-accent); line-height: 1;
  margin-bottom: var(--space-2);
}
@media (min-width: 768px) { .stat-number { font-size: var(--text-2xl); } }
.stat-label {
  font-size: var(--text-xs); font-weight: 500;
  color: rgba(255,255,255,0.45); text-transform: uppercase;
  letter-spacing: 0.1em; line-height: 1.4;
}

/* ===== SECTIONS ===== */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
}
.section--dark { background: var(--color-dark-bg); color: #fff; }
.section--light { background: var(--color-bg); color: var(--color-text); }
.section--white { background: var(--color-surface); color: var(--color-text); }
.section--accent {
  background: #f0f4f8; color: var(--color-text);
}
.section--accent-2 {
  background: var(--color-secondary); color: #fff;
}
.section-eyebrow {
  font-family: var(--font-body); font-size: var(--text-xs);
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--color-accent); margin-bottom: var(--space-4);
}
.section-title {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 700; letter-spacing: -0.04em;
  margin-bottom: var(--space-4);
}
.section--dark .section-title { color: #fff; }
.section-subtitle {
  font-size: var(--text-base); max-width: 60ch; line-height: 1.7;
}
.section--dark .section-subtitle { color: rgba(255,255,255,0.7); }
.section--light .section-subtitle,
.section--white .section-subtitle { color: var(--color-text-muted); }

/* ===== TWO-COLUMN LAYOUTS ===== */
.two-col {
  display: grid; gap: var(--space-8);
}
@media (min-width: 900px) {
  .two-col { grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: center; }
}
.two-col--reverse .about-image { order: -1; }
@media (max-width: 899px) { .two-col--reverse .about-image { order: 0; } }
.about-image {
  border-radius: var(--radius-lg); overflow: hidden;
}
.about-image img { width: 100%; height: 100%; object-fit: cover; }
.about-image--fit {
  aspect-ratio: auto;
}
@media (min-width: 900px) {
  .about-image--fit { height: 100%; }
  .about-image--fit img { height: 100%; }
}
.about-text {
  font-size: var(--text-base); color: var(--color-text-muted);
  line-height: 1.7; margin-top: var(--space-4);
}

/* ===== CAPABILITIES ROW ===== */
.capabilities-row {
  display: flex; flex-wrap: wrap; gap: var(--space-3);
  margin-top: var(--space-12); padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
}
.capability-chip {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 600; color: var(--color-primary);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.capability-chip:hover {
  border-color: var(--color-accent); box-shadow: var(--shadow-sm);
}
.capability-chip svg {
  width: 16px; height: 16px; color: var(--color-accent); flex-shrink: 0;
}

/* ===== CHALLENGE / OPPORTUNITY SECTION ===== */
.challenge-grid {
  display: grid; grid-template-columns: 1fr; gap: var(--space-6);
  margin-top: var(--space-10);
}
@media (min-width: 768px) { .challenge-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .challenge-grid { grid-template-columns: repeat(5, 1fr); } }
.challenge-card {
  padding: var(--space-6);
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  transition: background var(--transition-interactive), border-color var(--transition-interactive);
}
.challenge-card:hover {
  background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.15);
}
.challenge-stat {
  font-family: var(--font-body); font-size: var(--text-xl);
  font-weight: 800; color: var(--color-accent); margin-bottom: var(--space-3);
}
.challenge-card h3 {
  font-family: var(--font-body); font-size: var(--text-sm);
  font-weight: 700; color: #fff; margin-bottom: var(--space-3);
}
.challenge-card p {
  font-size: var(--text-xs); color: rgba(255,255,255,0.6); line-height: 1.6;
}
.gmp-quote {
  margin-top: var(--space-12); padding: var(--space-8);
  background: rgba(212,115,26,0.08); border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}
.gmp-quote p {
  font-family: var(--font-body); font-size: var(--text-base);
  font-style: italic; font-weight: 400; letter-spacing: -0.02em;
  color: var(--color-accent); line-height: 1.5;
  text-align: justify; max-width: none;
}
.gmp-quote-cite {
  display: block; margin-top: var(--space-4); text-align: center;
  font-family: var(--font-body); font-size: var(--text-xs);
  font-style: normal; font-weight: 600; color: rgba(255,255,255,0.55);
  letter-spacing: 0.03em;
}

/* ===== FOCUS AREAS ===== */
.focus-grid {
  display: grid; grid-template-columns: 1fr; gap: var(--space-6);
  margin-top: var(--space-10);
}
@media (min-width: 768px) { .focus-grid { grid-template-columns: 1fr 1fr; } }
.focus-card {
  padding: var(--space-8);
  background: var(--color-surface); border: 1px solid rgba(12,31,61,0.06);
  border-radius: var(--radius-lg); position: relative; overflow: hidden;
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}
.focus-card:hover {
  box-shadow: var(--shadow-lg); transform: translateY(-3px);
}
.focus-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-secondary) 100%);
  opacity: 0; transition: opacity var(--transition-interactive);
}
.focus-card:hover::before { opacity: 1; }
.focus-card-icon {
  width: 48px; height: 48px; margin-bottom: var(--space-4);
  color: var(--color-accent);
}
.focus-card-icon svg { width: 100%; height: 100%; }
.focus-card-label {
  font-family: var(--font-body); font-size: var(--text-xs);
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--color-accent); margin-bottom: var(--space-3);
}
.focus-card h3 {
  font-family: var(--font-body); font-size: var(--text-lg);
  font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-3);
}
.focus-card > p {
  font-size: var(--text-sm); color: var(--color-text-muted);
  line-height: 1.7; margin-bottom: var(--space-4);
}
.focus-details {
  list-style: none; padding: 0;
  border-top: 1px solid var(--color-divider); padding-top: var(--space-4);
}
.focus-details li {
  font-size: var(--text-xs); color: var(--color-text-muted);
  padding: var(--space-2) 0; padding-left: var(--space-5);
  position: relative; line-height: 1.5;
}
.focus-details li::before {
  content: ''; position: absolute; left: 0; top: 0.7em;
  width: 6px; height: 6px; border-radius: var(--radius-full);
  background: var(--color-accent);
}

/* ===== AI EDGE ===== */
.ai-edge-layout {
  display: grid; gap: var(--space-8);
}
@media (min-width: 900px) {
  .ai-edge-layout { grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: center; }
}
.ai-edge-image {
  border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4/3;
}
.ai-edge-image img { width: 100%; height: 100%; object-fit: cover; }
.ai-features {
  display: flex; flex-direction: column; gap: var(--space-6); margin-top: var(--space-8);
}
.ai-feature {
  display: flex; gap: var(--space-4); align-items: flex-start;
}
.ai-feature-number {
  flex-shrink: 0; width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-accent); color: #fff;
  font-size: var(--text-xs); font-weight: 800;
}
.ai-feature h4 {
  font-family: var(--font-body); font-size: var(--text-sm);
  font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-1);
}
.ai-feature p {
  font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.5;
}

/* ===== VALUE CHAIN ===== */
.value-chain-section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  background: var(--color-dark-bg); color: #fff; text-align: center;
}
.chain-visual {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--space-4); margin-top: var(--space-10);
}
@media (min-width: 768px) {
  .chain-visual {
    flex-direction: row; justify-content: center; gap: var(--space-3);
  }
}
.chain-stage {
  padding: var(--space-6); width: 280px; min-height: 200px;
  background: rgba(255,255,255,0.04); border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-lg); text-align: center;
  transition: background var(--transition-interactive);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.chain-stage:hover { background: rgba(255,255,255,0.08); }
.chain-stage-icon {
  width: 40px; height: 40px; margin: 0 auto var(--space-3);
  color: var(--color-accent);
}
.chain-stage-icon svg { width: 100%; height: 100%; }
.chain-stage-label {
  font-family: var(--font-body); font-size: var(--text-base); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--color-accent); margin-bottom: var(--space-3);
}
.chain-stage-company {
  display: none;
}
.chain-stage-desc {
  font-size: var(--text-xs); color: rgba(255,255,255,0.5); line-height: 1.5;
}
.chain-connector {
  width: 40px; height: 12px; color: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  transform: rotate(90deg);
}
@media (min-width: 768px) { .chain-connector { transform: rotate(0); } }
.chain-connector svg { width: 100%; height: 100%; }

/* Chain Products */
.chain-products {
  display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3);
  margin-top: var(--space-10); padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.chain-product {
  display: flex; flex-direction: column; align-items: center;
  padding: var(--space-3) var(--space-6);
  background: rgba(255,255,255,0.05); border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-full);
}
.chain-product strong {
  font-size: var(--text-xs); font-weight: 700; color: var(--color-accent);
}
.chain-product span {
  font-size: 0.65rem; color: rgba(255,255,255,0.4);
}

/* ===== VALUE PROPOSITION ===== */
.value-grid {
  display: grid; grid-template-columns: 1fr; gap: var(--space-6);
  margin-top: var(--space-10);
}
@media (min-width: 768px) { .value-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .value-grid { grid-template-columns: repeat(3, 1fr); } }
.value-card {
  padding: var(--space-6);
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  transition: background var(--transition-interactive);
}
.value-card:hover { background: rgba(255,255,255,0.08); }
.value-card-number {
  font-family: var(--font-body); font-size: var(--text-2xl);
  font-weight: 800; color: var(--color-accent); line-height: 1;
  margin-bottom: var(--space-3);
}
.value-card h3 {
  font-family: var(--font-body); font-size: var(--text-base);
  font-weight: 700; color: #fff; margin-bottom: var(--space-3);
}
.value-card p {
  font-size: var(--text-sm); color: rgba(255,255,255,0.6); line-height: 1.6;
}



/* ===== LEADERSHIP ===== */
.leadership-row {
  display: grid; grid-template-columns: 1fr; gap: var(--space-6);
  margin-top: var(--space-10);
}
.leadership-row--bottom { margin-top: var(--space-6); }
@media (min-width: 600px) {
  .leadership-row--top { grid-template-columns: 1fr 1fr; max-width: 720px; margin-inline: auto; }
  .leadership-row--bottom { grid-template-columns: 1fr 1fr 1fr; }
}
@media (min-width: 900px) {
  .leadership-row--top { max-width: 760px; }
}
.leader-card {
  padding: var(--space-6);
  background: var(--color-surface); border: 1px solid rgba(12,31,61,0.06);
  border-radius: var(--radius-lg); text-align: center;
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}
.leader-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.leader-initials {
  width: 72px; height: 72px; border-radius: var(--radius-full);
  background: var(--color-dark-bg); color: var(--color-accent);
  font-family: var(--font-body); font-size: var(--text-lg); font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-4);
}
.leader-photo {
  width: 107px; height: 107px; border-radius: var(--radius-full);
  object-fit: cover; object-position: center top;
  margin: 0 auto var(--space-4);
  border: 3px solid var(--color-accent);
  display: block;
}
.leader-card h3 {
  font-family: var(--font-body); font-size: var(--text-base);
  font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-1);
}
.leader-role {
  font-size: var(--text-xs); font-weight: 600; color: var(--color-accent);
  text-transform: uppercase; letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}
.leader-bio {
  font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.5;
}

/* ===== CONTACT ===== */
.contact-section {
  position: relative;
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  background: var(--color-dark-bg); overflow: hidden;
}
.contact-bg {
  position: absolute; inset: 0; z-index: 1;
}
.contact-bg img {
  width: 100%; height: 100%; object-fit: cover; opacity: 0.35;
}
.contact-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(180deg, rgba(21,45,80,0.55) 0%, rgba(21,45,80,0.7) 50%, rgba(21,45,80,0.85) 100%);
  pointer-events: none;
}
.contact-inner {
  position: relative; z-index: 3; display: grid; gap: var(--space-8);
}
@media (min-width: 768px) {
  .contact-inner { grid-template-columns: 1fr 1fr; align-items: center; }
}
.contact-info {
  display: flex; flex-direction: column; gap: var(--space-4); margin-top: var(--space-8);
}
.contact-item {
  display: flex; align-items: center; gap: var(--space-3);
  color: rgba(255,255,255,0.7); font-size: var(--text-sm);
}
.contact-item svg { width: 20px; height: 20px; color: var(--color-accent); flex-shrink: 0; }
.contact-item a {
  color: rgba(255,255,255,0.7); text-decoration: none;
  transition: color var(--transition-interactive);
}
.contact-item a:hover { color: #fff; }
.contact-cta-box {
  background: #ffffff; border: none;
  border-radius: var(--radius-xl); padding: var(--space-10); text-align: center;
  box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}
.contact-cta-box .btn-cta {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-4) var(--space-10);
  background: var(--color-accent); color: #fff;
  font-family: var(--font-body); font-size: var(--text-base); font-weight: 700;
  text-decoration: none; border-radius: var(--radius-md); margin-top: var(--space-6);
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.contact-cta-box .btn-cta:hover {
  background: var(--color-accent-hover); transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212,115,26,0.3);
}

/* ===== INQUIRY FORM ===== */
.inquiry-form {
  text-align: left;
  display: flex; flex-direction: column; gap: var(--space-4);
}
.form-row {
  display: grid; grid-template-columns: 1fr; gap: var(--space-4);
}
@media (min-width: 480px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}
.form-group {
  display: flex; flex-direction: column; gap: var(--space-1);
}
.form-label {
  font-family: var(--font-body); font-size: var(--text-xs);
  font-weight: 600; color: var(--color-text-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.form-required { color: var(--color-accent); }
.form-input {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body); font-size: var(--text-sm);
  color: var(--color-text); outline: none;
  transition: border-color var(--transition-interactive), background var(--transition-interactive), box-shadow var(--transition-interactive);
}
.form-input::placeholder { color: var(--color-text-faint); }
.form-input:focus {
  border-color: var(--color-accent);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(212,115,26,0.15);
}
.form-input.input-error {
  border-color: #e74c3c;
  box-shadow: 0 0 0 3px rgba(231,76,60,0.15);
}
.form-select {
  appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='rgba(74,85,104,0.7)' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
  cursor: pointer;
}
.form-select option {
  background: #ffffff; color: var(--color-text);
}
.form-textarea {
  resize: vertical; min-height: 100px;
  line-height: 1.6;
}
.btn-submit {
  width: 100%; justify-content: center;
  margin-top: var(--space-2);
  border: none; cursor: pointer;
  font-family: var(--font-body);
}
.btn-submit:disabled {
  opacity: 0.6; cursor: not-allowed;
}
/* --- Fade transitions for form / success swap --- */
.form-fade-out {
  animation: formFadeOut 0.3s ease forwards;
}
.form-fade-in {
  animation: formFadeIn 0.4s ease forwards;
}
@keyframes formFadeOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(8px); }
}
@keyframes formFadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.form-success {
  text-align: center; padding: var(--space-10) var(--space-6);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 260px;
}
.form-success-icon {
  width: 60px; height: 60px; margin: 0 auto var(--space-5);
  border-radius: var(--radius-full);
  background: rgba(212,115,26,0.12);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent);
}
.form-success h4 {
  font-family: var(--font-body); font-size: var(--text-lg);
  font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-2);
}
.form-success p {
  font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6;
  max-width: 360px;
}

.form-error-msg {
  font-size: 0.75rem; color: #e74c3c; margin-top: 2px;
  display: none;
}
.form-group.has-error .form-error-msg { display: block; }

/* ===== FOOTER ===== */
.site-footer {
  background: #ffffff; color: var(--color-text-muted);
  padding: var(--space-12) 0 var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.footer-inner { display: grid; gap: var(--space-8); }
@media (min-width: 768px) { .footer-inner { grid-template-columns: 2fr 1fr 1fr; } }
.footer-brand p {
  font-size: var(--text-sm); color: var(--color-text-muted);
  margin-top: var(--space-4); max-width: 40ch; line-height: 1.6;
}
.footer-links h4 {
  font-family: var(--font-body); font-size: var(--text-xs);
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--color-primary); margin-bottom: var(--space-4);
}
.footer-links ul {
  list-style: none; display: flex; flex-direction: column; gap: var(--space-3);
}
.footer-links a {
  color: var(--color-text-muted); text-decoration: none; font-size: var(--text-sm);
  transition: color var(--transition-interactive);
}
.footer-links a:hover { color: var(--color-accent); }
.footer-bottom {
  margin-top: var(--space-10); padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  display: flex; flex-direction: column; gap: var(--space-3);
  align-items: center; text-align: center;
}
@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}
.footer-bottom p, .footer-bottom a {
  font-size: var(--text-xs); color: var(--color-text-faint);
}
.footer-bottom a { text-decoration: none; transition: color var(--transition-interactive); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ===== ANIMATIONS ===== */
.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.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; }

/* ===== LOGO IMAGE VARIANTS ===== */
.footer-logo-img {
  height: 76px; width: auto; display: block; object-fit: contain; image-rendering: -webkit-optimize-contrast;
}
.contact-logo-img {
  height: 89px; width: auto; display: block; margin: 0 auto var(--space-4); object-fit: contain; image-rendering: -webkit-optimize-contrast;
}

/* ===== PARTNERS TICKER ===== */
.partners-section {
  padding: clamp(var(--space-12), 6vw, var(--space-20)) 0;
  background: var(--color-surface-2); overflow: hidden;
}
.partners-section .section-eyebrow {
  color: var(--color-accent);
}
.partners-section .section-title {
  color: var(--color-primary); margin-bottom: var(--space-10);
}
.ticker-wrapper {
  width: 100%; overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
}
.ticker-track {
  display: flex; gap: var(--space-10); align-items: center;
  animation: ticker-scroll 20s linear infinite;
  width: max-content;
}
.ticker-track:hover {
  animation-play-state: paused;
}
@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.ticker-item {
  text-decoration: none; flex-shrink: 0;
  transition: transform var(--transition-interactive), opacity var(--transition-interactive);
}
.ticker-item:hover {
  transform: scale(1.05); opacity: 0.8;
}
.ticker-logo-box {
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-4) var(--space-10);
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  min-width: 180px; height: 72px;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.ticker-item:hover .ticker-logo-box {
  border-color: var(--color-accent); box-shadow: var(--shadow-sm);
}
.ticker-logo-text {
  font-family: var(--font-body); font-size: var(--text-lg);
  font-weight: 800; letter-spacing: 0.08em; color: var(--color-primary);
  white-space: nowrap;
}
.ticker-logo-img {
  height: 46px; width: auto; max-width: 160px; object-fit: contain; image-rendering: -webkit-optimize-contrast;
}
.ticker-logo-img.ticker-logo-lemstar {
  height: 75px; max-width: none; width: auto; display: block; margin: 0 auto;
}
.ticker-item-lemstar .ticker-logo-box {
  min-width: auto; height: 87px; padding: var(--space-4) var(--space-6);
  display: flex; align-items: center; justify-content: center;
}

/* ===== ALUMNI TICKER ===== */
.alumni-ticker-wrapper {
  width: 100%; overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
}
.alumni-ticker-track {
  display: flex !important; flex-direction: row !important; flex-wrap: nowrap !important;
  gap: var(--space-10); align-items: center;
  animation: alumni-ticker-scroll 25s linear infinite;
  width: max-content; white-space: nowrap;
}
.alumni-ticker-track:hover {
  animation-play-state: paused;
}
@keyframes alumni-ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.alumni-ticker-item {
  display: inline-flex !important; flex-shrink: 0;
  text-decoration: none;
  transition: transform var(--transition-interactive), opacity var(--transition-interactive);
}
.alumni-ticker-item:hover {
  transform: scale(1.08); opacity: 0.75;
}
.alumni-ticker-logo {
  display: block; width: auto; object-fit: contain; image-rendering: -webkit-optimize-contrast;
}

/* ===== AI CHATBOT WIDGET ===== */
#zenbot-widget {
  position: fixed; bottom: var(--space-6); right: var(--space-6); z-index: 150;
  font-family: var(--font-body);
}
#zenbot-fab {
  width: 56px; height: 56px; border-radius: var(--radius-full);
  background: var(--color-accent); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: #fff; box-shadow: 0 6px 24px rgba(212,115,26,0.35);
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
#zenbot-fab:hover {
  background: var(--color-accent-hover); transform: scale(1.06);
  box-shadow: 0 8px 32px rgba(212,115,26,0.45);
}
#zenbot-panel {
  display: none; flex-direction: column;
  position: absolute; bottom: 72px; right: 0;
  width: 380px; max-width: calc(100vw - 32px); height: 520px; max-height: calc(100vh - 120px);
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl); overflow: hidden;
  box-shadow: 0 16px 48px rgba(12,31,61,0.18);
  animation: zenbot-slide-up 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes zenbot-slide-up {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
#zenbot-header {
  padding: var(--space-4) var(--space-5);
  background: var(--color-dark-bg); flex-shrink: 0;
}
#zenbot-messages {
  flex: 1; overflow-y: auto; padding: var(--space-4) var(--space-4);
  display: flex; flex-direction: column; gap: var(--space-3);
  background: var(--color-bg);
}
.zenbot-msg {
  max-width: 88%; padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg); font-size: 13px; line-height: 1.55;
  word-wrap: break-word;
}
.zenbot-msg p { margin: 0 0 0.5em 0; }
.zenbot-msg p:last-child { margin-bottom: 0; }
.zenbot-msg h3, .zenbot-msg h4 {
  font-size: 13px; font-weight: 700; margin: 0.6em 0 0.3em;
}
.zenbot-msg ul {
  margin: 0.3em 0; padding-left: 1.2em;
}
.zenbot-msg li {
  margin-bottom: 0.2em;
}
.zenbot-msg strong { font-weight: 700; }
.zenbot-msg--bot {
  align-self: flex-start; background: var(--color-surface);
  color: var(--color-text); border: 1px solid var(--color-divider);
  border-bottom-left-radius: var(--radius-sm);
}
.zenbot-msg--user {
  align-self: flex-end; background: var(--color-dark-bg);
  color: #fff; border-bottom-right-radius: var(--radius-sm);
}
.zenbot-typing { padding: var(--space-3) var(--space-5); }
.zenbot-dots { display: flex; gap: 5px; align-items: center; height: 20px; }
.zenbot-dots span {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-accent); opacity: 0.4;
  animation: zenbot-pulse 1.4s ease-in-out infinite;
}
.zenbot-dots span:nth-child(2) { animation-delay: 0.2s; }
.zenbot-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes zenbot-pulse {
  0%, 80%, 100% { opacity: 0.4; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}
#zenbot-form {
  display: flex; gap: var(--space-2); padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-divider); background: var(--color-surface); flex-shrink: 0;
}
#zenbot-input {
  flex: 1; padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
  font-family: var(--font-body); font-size: 13px; color: var(--color-text);
  background: var(--color-bg); outline: none;
  transition: border-color var(--transition-interactive);
}
#zenbot-input:focus { border-color: var(--color-accent); }
#zenbot-input::placeholder { color: var(--color-text-faint); }
#zenbot-send {
  width: 36px; height: 36px; border: none; border-radius: var(--radius-md);
  background: var(--color-accent); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition-interactive);
  flex-shrink: 0;
}
#zenbot-send:hover { background: var(--color-accent-hover); }
#zenbot-send:disabled { opacity: 0.5; cursor: not-allowed; }
@media (max-width: 480px) {
  #zenbot-panel { width: calc(100vw - 24px); right: -12px; bottom: 68px; height: 60vh; }
  #zenbot-widget { bottom: var(--space-4); right: var(--space-4); }
}