/* ===== CSS Variables & Reset ===== */
:root {
  --color-primary: #0A4D68;
  --color-primary-dark: #083D52;
  --color-accent: #088395;
  --color-accent-light: #05BFDB;
  --color-teal: #00A8A8;
  --color-health: #2A9D8F;
  --color-edu: #E9C46A;
  --color-bg: #F7F9FC;
  --color-bg-alt: #EEF3F8;
  --color-surface: #FFFFFF;
  --color-text: #1A2332;
  --color-text-muted: #5A6A7A;
  --color-border: #D8E2EC;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(10, 77, 104, 0.06);
  --shadow-md: 0 8px 30px rgba(10, 77, 104, 0.08);
  --shadow-lg: 0 20px 50px rgba(10, 77, 104, 0.12);
  --header-height: 72px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(247, 249, 252, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: border-color var(--transition), background var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(255, 255, 255, 0.92);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.logo-img {
  width: 44px;
  height: 44px;
  object-fit: cover;
  object-position: center top;
  display: block;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  background: #fff;
}

.logo-img-footer {
  background: #fff;
  border-radius: 50%;
  padding: 2px;
}

.logo-mark {
  font-size: 1.5rem;
  color: var(--color-primary);
  line-height: 1;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-name {
  font-size: 1.05rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.logo-sub {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-list {
  display: flex;
  gap: 28px;
}

.nav-list a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav-list a:hover,
.nav-list a:focus {
  color: var(--color-primary);
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switch {
  display: flex;
  background: var(--color-bg-alt);
  border-radius: 8px;
  padding: 3px;
  border: 1px solid var(--color-border);
}

.lang-btn {
  padding: 5px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: 6px;
  transition: all var(--transition);
}

.lang-btn.active {
  background: var(--color-primary);
  color: white;
}

.lang-btn:hover:not(.active) {
  color: var(--color-primary);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(10, 77, 104, 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(10, 77, 104, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 40px) 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(5, 191, 219, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(10, 77, 104, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero-logo {
  display: block;
  width: min(520px, 100%);
  height: auto;
  margin: 8px 0 18px;
}

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

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4rem);
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.hero-title-accent {
  display: block;
  color: var(--color-accent);
}

.hero-tagline {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 20px;
  max-width: 540px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  max-width: 560px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  animation: bounce 2s infinite;
}

.hero-scroll a {
  color: var(--color-text-muted);
  opacity: 0.7;
  transition: opacity var(--transition);
}

.hero-scroll a:hover { opacity: 1; }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Sections ===== */
.section {
  padding: 100px 0;
}

.section-header {
  margin-bottom: 48px;
}

.section-header.centered {
  text-align: center;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.section-subtitle {
  margin-top: 14px;
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* ===== About ===== */
.about {
  background: var(--color-surface);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  margin-bottom: 18px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.about-text p:last-child { margin-bottom: 0; }

.about-cards {
  display: grid;
  gap: 16px;
}

.stat-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* ===== People ===== */
.people {
  background: var(--color-bg-alt);
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.person-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}

.person-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.person-card.featured {
  border-color: rgba(8, 131, 149, 0.35);
}

.person-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: white;
  background: var(--color-primary);
  margin-bottom: 18px;
}

.person-card:nth-child(2) .person-avatar {
  background: var(--color-accent);
}

.person-card:nth-child(3) .person-avatar {
  background: var(--color-health);
}

.person-role {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.person-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.person-meta {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}

.person-card > p:not(.person-meta) {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  flex-grow: 1;
  margin-bottom: 16px;
}

.person-card a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-accent);
}

.person-card a:hover {
  text-decoration: underline;
}

/* ===== Mission ===== */
.mission {
  background: linear-gradient(160deg, var(--color-primary) 0%, #0C5A7A 100%);
  color: white;
}

.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.mission-block {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(8px);
}

.mission-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  margin-bottom: 20px;
  color: var(--color-accent-light);
}

.mission-block h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.mission-block p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.02rem;
  line-height: 1.7;
}

/* ===== Focus / Pillars ===== */
.focus {
  background: var(--color-bg);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.pillar-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  margin-bottom: 22px;
}

.pillar-icon.tech {
  background: rgba(10, 77, 104, 0.1);
  color: var(--color-primary);
}

.pillar-icon.health {
  background: rgba(42, 157, 143, 0.12);
  color: var(--color-health);
}

.pillar-icon.edu {
  background: rgba(233, 196, 106, 0.2);
  color: #C9A227;
}

.pillar-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.pillar-card > p {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.pillar-list {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.pillar-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9rem;
  color: var(--color-text);
  margin-bottom: 8px;
  font-weight: 500;
}

.pillar-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ===== Initiatives ===== */
.initiatives {
  background: var(--color-surface);
}

.init-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.init-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.init-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.init-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(8, 131, 149, 0.1);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.init-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.init-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ===== Involve ===== */
.involve {
  background: var(--color-bg-alt);
}

.involve-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.involve-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.involve-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.involve-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.involve-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.involve-cta {
  text-align: center;
}

/* ===== Contact ===== */
.contact {
  background: var(--color-surface);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.contact-info .section-title {
  margin-bottom: 16px;
}

.contact-intro {
  color: var(--color-text-muted);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-item strong {
  font-size: 1.05rem;
  color: var(--color-primary);
}

.contact-item .contact-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.contact-item a {
  color: var(--color-accent);
  font-weight: 500;
}

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

.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: white;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(8, 131, 149, 0.15);
}

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

.form-note {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 60px 0 30px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer .logo-name,
.footer .logo-mark {
  color: white;
}

.footer .logo-sub {
  color: var(--color-accent-light);
}

.footer-tagline {
  margin-top: 12px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: white;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--color-accent-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .about-grid,
  .mission-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .people-grid,
  .pillars-grid {
    grid-template-columns: 1fr;
  }

  .init-grid,
  .involve-options {
    grid-template-columns: 1fr;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--color-border);
    padding: 20px 24px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    gap: 16px;
  }

  .menu-toggle {
    display: flex;
  }

  .footer-top {
    flex-direction: column;
  }

  .footer-links {
    gap: 40px;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 70px 0;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 60px;
  }

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

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}