/* ----- RESET & GLOBAL (terinspirasi normalize.css) ----- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #e9edf2;
  font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  color: #1e2a3a;
  padding: 2rem 1rem;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 32px 32px 24px 24px;
  box-shadow: 0 20px 40px -12px rgba(0,20,40,0.35);
  overflow: hidden;
  transition: all 0.2s;
}

/* ----- PALET WARNA (sesuai thumbnail) ----- */
:root {
  --primary-dark: #0a2942;
  --primary-mid: #1b4a6b;
  --accent-gold: #c9a959;
  --accent-gold-light: #e8d6a0;
  --text-light: #f0f5fc;
  --text-dark: #1e2a3a;
  --soft-bg: #f7f9fc;
  --border-soft: #dce3ec;
}

/* ----- HEADER / HERO (gradasi biru & aksen emas) ----- */
.hero {
  background: linear-gradient(145deg, #082136 0%, #123a5a 70%, #1b4a6b 100%);
  padding: 2.8rem 2.8rem 2.4rem;
  border-bottom: 6px solid var(--accent-gold);
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(201,169,89,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  position: relative;
  z-index: 2;
}

.journal-badge {
  display: inline-block;
  background: var(--accent-gold);
  color: #0a2942;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0.2rem 1.2rem;
  border-radius: 40px;
  text-transform: uppercase;
  margin-bottom: 1rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.hero-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: white;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 700px;
}

.hero-title span {
  color: var(--accent-gold);
  font-weight: 300;
  display: inline-block;
}

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.8);
  max-width: 660px;
  margin-top: 0.6rem;
  font-weight: 400;
  border-left: 4px solid var(--accent-gold);
  padding-left: 1.2rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 2rem;
  margin-top: 1.6rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
}

.hero-meta i {
  color: var(--accent-gold);
  margin-right: 0.5rem;
  width: 1.2rem;
}

/* ----- KARTU FOKUS & RUANG LINGKUP (grid 3) ----- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.8rem;
  padding: 2.8rem 2.8rem 1.8rem;
}

.feature-card {
  background: var(--soft-bg);
  border-radius: 20px;
  padding: 1.8rem 1.6rem;
  border: 1px solid var(--border-soft);
  transition: 0.25s ease;
  box-shadow: 0 4px 8px rgba(0,0,0,0.02);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-gold);
  box-shadow: 0 12px 24px -8px rgba(10,41,66,0.12);
}

.feature-card .icon {
  font-size: 2.2rem;
  color: var(--primary-mid);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-card .icon i {
  background: var(--accent-gold-light);
  padding: 0.4rem;
  border-radius: 14px;
  color: var(--primary-dark);
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: -0.01em;
  margin-bottom: 0.3rem;
}

.feature-card p {
  color: #2c4058;
  font-size: 0.95rem;
  opacity: 0.85;
  margin-bottom: 0.2rem;
}

.feature-card .tag {
  display: inline-block;
  background: var(--accent-gold);
  color: #0a2942;
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.1rem 0.9rem;
  border-radius: 30px;
  margin-top: 0.6rem;
}

/* ----- BAGIAN KOLABORASI (dengan latar soft) ----- */
.collab-section {
  background: var(--soft-bg);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  padding: 2.2rem 2.8rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.collab-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.collab-left i {
  font-size: 2.4rem;
  color: var(--accent-gold);
  background: white;
  padding: 0.6rem;
  border-radius: 60px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.04);
}

.collab-left h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: -0.01em;
}

.collab-left p {
  font-size: 0.95rem;
  color: #2c4058;
  opacity: 0.8;
  margin-top: 0.1rem;
}

.collab-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
}

.collab-tags span {
  background: white;
  padding: 0.3rem 1.2rem;
  border-radius: 40px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-mid);
  border: 1px solid var(--border-soft);
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  transition: 0.15s;
}

.collab-tags span:hover {
  border-color: var(--accent-gold);
  background: var(--accent-gold-light);
  color: #0a2942;
}

/* ----- FOOTER / BRANDING ----- */
.footer-brand {
  padding: 1.8rem 2.8rem;
  background: white;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--border-soft);
}

.footer-brand .logo-text {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary-dark);
}

.footer-brand .logo-text i {
  color: var(--accent-gold);
  margin-right: 0.4rem;
}

.footer-brand small {
  font-size: 0.85rem;
  color: #4f637a;
  opacity: 0.7;
}

.footer-brand .social {
  display: flex;
  gap: 0.8rem;
}

.footer-brand .social a {
  color: var(--primary-mid);
  background: var(--soft-bg);
  width: 36px;
  height: 36px;
  border-radius: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: 0.2s;
  border: 1px solid transparent;
}

.footer-brand .social a:hover {
  background: var(--accent-gold-light);
  border-color: var(--accent-gold);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

/* ----- RESPONSIVE (mobile first) ----- */
@media (max-width: 768px) {
  body {
    padding: 1rem 0.6rem;
  }

  .hero {
    padding: 1.8rem 1.2rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-sub {
    font-size: 1rem;
    padding-left: 0.8rem;
  }

  .feature-grid {
    padding: 1.8rem 1.2rem;
    gap: 1rem;
  }

  .collab-section {
    padding: 1.6rem 1.2rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-brand {
    padding: 1.2rem 1.2rem;
    flex-direction: column;
    text-align: center;
  }

  .hero-meta {
    flex-direction: column;
    gap: 0.6rem;
  }

  .journal-badge {
    font-size: 0.7rem;
  }

  .collab-tags span {
    font-size: 0.75rem;
    padding: 0.2rem 0.9rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.6rem;
  }

  .feature-card {
    padding: 1.2rem;
  }

  .feature-card .icon {
    font-size: 1.6rem;
  }
}