@import url('https://fonts.googleapis.com/css2?family=Exo+2:wght@400;500;600;700;800&display=swap');

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

:root {
  --navy: #0A1628;
  --teal: #00C2CB;
  --teal-dark: #009aa2;
  --white: #ffffff;
  --light: #f4f7fb;
  --muted: #8a9bb5;
  --card-bg: #111f38;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Exo 2', sans-serif;
  background: var(--navy);
  color: var(--white);
  line-height: 1.7;
  background-image:
    linear-gradient(rgba(0,194,203,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,194,203,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}

body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 60% 20%, rgba(0,194,203,0.07) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(0,194,203,0.05) 0%, transparent 50%);
}

body > * { position: relative; z-index: 1; }
nav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  background: rgba(10,22,40,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0,194,203,0.15);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  padding: 0 2rem; height: 68px; gap: 1rem;
}

.nav-links {
  display: flex; gap: 2rem; list-style: none;
  justify-content: center;
}

.nav-logo {
  display: flex; align-items: center; gap: 0.5rem;
  text-decoration: none;
}

.logo-img-wrap {
  width: 44px; height: 44px;
}

.logo-img-wrap img {
  width: 100%; height: 100%;
  object-fit: contain;
  display: block;
}

.nav-logo span {
  font-family: 'Exo 2', sans-serif;
  font-size: 1.3rem; font-weight: 700;
  color: var(--white);
}

.nav-logo span em { color: var(--teal); font-style: normal; }

.nav-links a {
  text-decoration: none; color: var(--muted);
  font-size: 0.9rem; font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--teal); }

.nav-cta {
  background: var(--teal); color: var(--navy) !important;
  padding: 0.45rem 1.1rem; border-radius: 6px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--teal-dark) !important; color: var(--white) !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: 0.3s; }
.nav-right { display: flex; align-items: center; gap: 0.75rem; }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  position: relative; overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse at 60% 40%, rgba(0,194,203,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(0,194,203,0.05) 0%, transparent 50%);
}

.hero-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(0,194,203,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,194,203,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-content { position: relative; z-index: 1; max-width: 760px; }

.hero-badge {
  display: inline-block;
  background: rgba(0,194,203,0.12);
  color: var(--teal);
  border: 1px solid rgba(0,194,203,0.3);
  padding: 0.3rem 1rem; border-radius: 20px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.05em;
  margin-bottom: 1.5rem; text-transform: uppercase;
}

.hero h1 {
  font-family: 'Exo 2', sans-serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800; line-height: 1.15;
  margin-bottom: 1.2rem;
}

.hero h1 span { color: var(--teal); }

.hero p {
  font-size: 1.1rem; color: var(--muted);
  max-width: 560px; margin: 0 auto 2rem;
}

.btn {
  display: inline-block; text-decoration: none;
  padding: 0.75rem 2rem; border-radius: 8px;
  font-weight: 600; font-size: 0.95rem;
  transition: all 0.2s;
}
.btn-primary { background: var(--teal); color: var(--navy); }
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-2px); }
.btn-outline {
  border: 1px solid rgba(0,194,203,0.4); color: var(--teal);
  margin-left: 1rem;
}
.btn-outline:hover { background: rgba(0,194,203,0.08); }

.hero-cards {
  display: flex; gap: 1.5rem; justify-content: center;
  margin-top: 4rem; flex-wrap: wrap;
}

.hero-card {
  background: var(--card-bg);
  border: 1px solid rgba(0,194,203,0.15);
  border-radius: 12px; padding: 1.5rem;
  width: 200px; text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}
.hero-card:hover { border-color: var(--teal); transform: translateY(-4px); }
.hero-card .icon { font-size: 1.8rem; margin-bottom: 0.5rem; }
.hero-card h3 { font-family: 'Exo 2', sans-serif; font-size: 1rem; color: var(--teal); }
.hero-card p { font-size: 0.8rem; color: var(--muted); margin-top: 0.3rem; }

/* SECTIONS */
section { padding: 5rem 2rem; }
.section-inner { max-width: 1100px; margin: 0 auto; }

.section-label {
  color: var(--teal); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.5rem;
}

.section-title {
  font-family: 'Exo 2', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700; margin-bottom: 1rem;
}

.section-sub { color: var(--muted); max-width: 560px; margin-bottom: 3rem; }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-text p { color: var(--muted); margin-bottom: 1rem; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.stat-box {
  background: var(--navy); border: 1px solid rgba(0,194,203,0.15);
  border-radius: 10px; padding: 1.5rem; text-align: center;
}
.stat-box .num {
  font-family: 'Exo 2', sans-serif; font-size: 2rem;
  font-weight: 800; color: var(--teal);
}
.stat-box p { font-size: 0.8rem; color: var(--muted); margin-top: 0.3rem; }

/* FRAMEWORK */
.framework-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.fw-card {
  background: var(--card-bg);
  border: 1px solid rgba(0,194,203,0.12);
  border-radius: 12px; padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}
.fw-card:hover { border-color: var(--teal); transform: translateY(-4px); }
.fw-card .fw-icon { font-size: 2rem; margin-bottom: 1rem; }
.fw-card h3 { font-family: 'Exo 2', sans-serif; font-size: 1.1rem; color: var(--teal); margin-bottom: 0.75rem; }
.fw-card p { font-size: 0.88rem; color: var(--muted); }

/* RESOURCES */
.resources-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.res-card {
  background: var(--navy);
  border: 1px solid rgba(0,194,203,0.12);
  border-radius: 12px; padding: 1.75rem;
  transition: border-color 0.2s;
}
.res-card:hover { border-color: var(--teal); }
.res-tag {
  display: inline-block; background: rgba(0,194,203,0.12);
  color: var(--teal); font-size: 0.75rem; font-weight: 600;
  padding: 0.2rem 0.7rem; border-radius: 20px; margin-bottom: 0.75rem;
}
.res-card h3 { font-family: 'Exo 2', sans-serif; font-size: 1rem; margin-bottom: 0.5rem; }
.res-card p { font-size: 0.85rem; color: var(--muted); }
.res-link { display: inline-block; margin-top: 1rem; color: var(--teal); font-size: 0.85rem; font-weight: 600; text-decoration: none; }
.res-link:hover { text-decoration: underline; }

/* CONTACT */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 4rem; align-items: start; }
.contact-info h2 { font-family: 'Exo 2', sans-serif; font-size: 1.8rem; margin-bottom: 1rem; }
.contact-info p { color: var(--muted); margin-bottom: 2rem; }
.contact-detail { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; color: var(--muted); font-size: 0.9rem; }
.contact-detail .ci { color: var(--teal); font-size: 1.1rem; }

form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.82rem; font-weight: 600; color: var(--muted); }
.form-group input, .form-group textarea, .form-group select {
  background: var(--card-bg);
  border: 1px solid rgba(0,194,203,0.2);
  border-radius: 8px; padding: 0.7rem 1rem;
  color: var(--white); font-family: 'Exo 2', sans-serif; font-size: 0.9rem;
  outline: none; transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--teal);
}
.form-group input::placeholder, .form-group textarea::placeholder {
  color: rgba(138,155,181,0.5);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-error { color: #ff6b6b; font-size: 0.78rem; display: none; }
.form-success {
  display: none; background: rgba(0,194,203,0.1);
  border: 1px solid var(--teal); border-radius: 8px;
  padding: 1rem; color: var(--teal); text-align: center;
}

/* FOOTER */
footer {
  background: #060e1a;
  border-top: 1px solid rgba(0,194,203,0.1);
  padding: 2.5rem 2rem; text-align: center;
}
footer .footer-logo {
  font-family: 'Exo 2', sans-serif; font-size: 1.2rem;
  font-weight: 700; color: var(--white); margin-bottom: 1rem;
}
footer .footer-logo em { color: var(--teal); font-style: normal; }
footer nav a {
  color: var(--muted); text-decoration: none; font-size: 0.85rem;
  margin: 0 0.75rem; transition: color 0.2s;
}
footer nav a:hover { color: var(--teal); }
footer p { color: var(--muted); font-size: 0.8rem; margin-top: 1.5rem; }

/* LIGHT MODE */
body.light {
  --navy: #f0f4f8;
  --card-bg: #ffffff;
  --white: #0A1628;
  --muted: #4a5568;
  background: #f0f4f8;
  background-image:
    linear-gradient(rgba(0,194,203,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,194,203,0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  color: #0A1628;
}
body.light nav {
  background: rgba(240,244,248,0.95);
  border-bottom: 1px solid rgba(0,194,203,0.2);
}
body.light .hero-grid {
  background-image:
    linear-gradient(rgba(0,194,203,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,194,203,0.08) 1px, transparent 1px);
}
body.light footer { background: #dde3ec; }
body.light .about { background: #ffffff; }
body.light .resources { background: #ffffff; }
body.light .fw-card, body.light .res-card, body.light .stat-box {
  background: #f0f4f8;
  border-color: rgba(0,194,203,0.25);
}
body.light .form-group input,
body.light .form-group textarea {
  background: #f0f4f8;
  color: #0A1628;
  border-color: rgba(0,194,203,0.3);
}

/* THEME TOGGLE */
.theme-toggle {
  background: none; border: 1px solid rgba(0,194,203,0.3);
  color: var(--teal); border-radius: 20px;
  padding: 0.3rem 0.85rem; font-size: 0.8rem; font-weight: 600;
  cursor: pointer; font-family: 'Exo 2', sans-serif;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.theme-toggle:hover { background: rgba(0,194,203,0.1); }
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; width: 100%; background: var(--navy); padding: 1rem 2rem; gap: 1rem; border-bottom: 1px solid rgba(0,194,203,0.1); }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .hero-cards { flex-direction: column; align-items: center; }
}