/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue-dark: #0d2b5e;
  --blue-mid:  #1a4b8c;
  --blue-light: #4ab3e8;
  --blue-accent: #5bc8f5;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-600: #475569;
  --gray-800: #1e293b;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.14);
  --radius: 12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-light);
  color: var(--white);
  border-color: var(--blue-light);
}
.btn-primary:hover { background: var(--blue-accent); border-color: var(--blue-accent); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(74,179,232,.4); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.6);
}
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: var(--white); }
.btn-outline-dark {
  background: transparent;
  color: var(--blue-mid);
  border-color: var(--blue-mid);
}
.btn-outline-dark:hover { background: var(--blue-mid); color: var(--white); }
.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline-light:hover { background: var(--white); color: var(--blue-dark); }
.btn-nav {
  background: var(--blue-light);
  color: var(--white);
  padding: 10px 20px;
  font-size: 0.875rem;
}
.btn-nav:hover { background: var(--blue-accent); }
.btn-lg { padding: 16px 32px; font-size: 1rem; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow 0.3s;
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 70px;
}
.nav-logo { display: flex; align-items: center; }
.logo-img { height: 48px; width: auto; object-fit: contain; }
.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  font-weight: 500;
  color: var(--gray-600);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--blue-mid); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: all 0.3s;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  padding: 16px 24px 20px;
}
.mobile-menu a {
  padding: 12px 0;
  font-weight: 500;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-100);
}
.mobile-menu a:last-child { border-bottom: none; margin-top: 8px; }
.mobile-menu.open { display: flex; }

/* ===== SECTION HEADER ===== */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--blue-dark);
  margin-bottom: 12px;
}
.section-header p {
  font-size: 1rem;
  color: var(--gray-600);
  max-width: 500px;
  margin: 0 auto;
}
.section-header.light h2 { color: var(--white); }
.section-header.light p { color: rgba(255,255,255,.8); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-mid) 60%, #1a6fa8 100%);
  overflow: hidden;
  padding-top: 70px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(74,179,232,.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(91,200,245,.12) 0%, transparent 60%);
  pointer-events: none;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
  padding-top: 60px;
  padding-bottom: 80px;
  position: relative;
  z-index: 1;
}
.hero-text { color: var(--white); }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.3);
  color: var(--white);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}
.hero-text h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}
.highlight { color: var(--blue-accent); }
.hero-text p {
  font-size: 1.05rem;
  color: rgba(255,255,255,.85);
  max-width: 480px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}
.stat { text-align: center; }
.stat strong { display: block; font-size: 1.4rem; font-weight: 800; color: var(--blue-accent); }
.stat span { font-size: 0.8rem; color: rgba(255,255,255,.7); }
.stat-divider { width: 1px; height: 36px; background: rgba(255,255,255,.25); }
.hero-visual { flex-shrink: 0; }
.hero-card {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  text-align: center;
  color: var(--white);
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
}
.hero-card-icon { font-size: 2.5rem; margin-bottom: 12px; }
.hero-card p { font-size: 0.9rem; color: rgba(255,255,255,.8); margin-bottom: 4px; }
.hero-card h2 { font-size: 3rem; font-weight: 800; color: var(--blue-accent); line-height: 1; }
.hero-card-sub { font-size: 0.85rem; color: rgba(255,255,255,.65); margin-top: 8px !important; }

/* ===== LAYANAN ===== */
.layanan { padding: 80px 0; background: var(--gray-50); }
.layanan-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.layanan-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all 0.25s;
}
.layanan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--blue-light); }
.layanan-icon { font-size: 2.5rem; margin-bottom: 16px; }
.layanan-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--blue-dark); margin-bottom: 10px; }
.layanan-card p { font-size: 0.9rem; color: var(--gray-600); }

/* ===== PAKET ===== */
.paket { padding: 80px 0; background: var(--white); }
.paket-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}
.paket-card {
  border-radius: var(--radius-lg);
  border: 2px solid var(--gray-200);
  padding: 32px 28px;
  background: var(--white);
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}
.paket-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.paket-card.featured {
  border-color: var(--blue-light);
  background: linear-gradient(160deg, var(--blue-dark) 0%, var(--blue-mid) 100%);
  color: var(--white);
  transform: scale(1.04);
  box-shadow: var(--shadow-lg);
}
.paket-card.featured:hover { transform: scale(1.04) translateY(-4px); }
.paket-badge-wrap { min-height: 28px; margin-bottom: 8px; }
.paket-badge {
  display: inline-block;
  background: var(--blue-accent);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
}
.paket-header { margin-bottom: 20px; }
.paket-header h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.paket-speed {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--blue-light);
  line-height: 1;
}
.paket-card.featured .paket-speed { color: var(--blue-accent); }
.paket-speed span { font-size: 1.1rem; font-weight: 600; }
.paket-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  padding: 16px 0;
}
.paket-card.featured .paket-price { border-color: rgba(255,255,255,.2); }
.price-currency { font-size: 1rem; font-weight: 600; }
.price-amount { font-size: 2rem; font-weight: 800; }
.price-period { font-size: 0.85rem; color: var(--gray-600); }
.paket-card.featured .price-period { color: rgba(255,255,255,.7); }
.paket-features { margin-bottom: 28px; }
.paket-features li {
  padding: 8px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--gray-100);
}
.paket-card.featured .paket-features li { border-color: rgba(255,255,255,.15); }
.paket-features li:last-child { border-bottom: none; }

/* ===== KEUNGGULAN ===== */
.keunggulan {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-mid) 100%);
}
.keunggulan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.keunggulan-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all 0.25s;
}
.keunggulan-card:hover { background: rgba(255,255,255,.13); transform: translateY(-4px); }
.k-icon { font-size: 2rem; margin-bottom: 14px; }
.keunggulan-card h3 { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.keunggulan-card p { font-size: 0.875rem; color: rgba(255,255,255,.75); line-height: 1.6; }

/* ===== CTA ===== */
.cta { padding: 72px 0; background: var(--gray-50); }
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-text h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; color: var(--blue-dark); margin-bottom: 8px; }
.cta-text p { color: var(--gray-600); }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== KONTAK ===== */
.kontak { padding: 80px 0; background: var(--white); }
.kontak-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.kontak-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  background: var(--gray-50);
  transition: all 0.25s;
}
.kontak-card:hover { box-shadow: var(--shadow-md); border-color: var(--blue-light); transform: translateY(-3px); }
.kontak-icon { font-size: 2.5rem; margin-bottom: 14px; }
.kontak-card h3 { font-size: 1rem; font-weight: 700; color: var(--blue-dark); margin-bottom: 8px; }
.kontak-card a { color: var(--blue-mid); font-weight: 600; font-size: 1rem; display: block; margin-bottom: 6px; }
.kontak-card a:hover { color: var(--blue-light); }
.kontak-card p { font-size: 0.875rem; color: var(--gray-600); }

/* ===== FOOTER ===== */
.footer {
  background: var(--gray-800);
  color: rgba(255,255,255,.8);
  padding-top: 60px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo { height: 52px; width: auto; margin-bottom: 14px; }
.footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,.6); margin-bottom: 4px; }
.footer-tagline { color: var(--blue-accent) !important; font-weight: 500; }
.footer-links h4, .footer-contact h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links ul a { font-size: 0.875rem; color: rgba(255,255,255,.65); transition: color 0.2s; }
.footer-links ul a:hover { color: var(--blue-accent); }
.footer-contact p { font-size: 0.875rem; margin-bottom: 8px; color: rgba(255,255,255,.65); }
.footer-contact .btn { margin-top: 12px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,.4); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .layanan-grid { grid-template-columns: repeat(2, 1fr); }
  .keunggulan-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-links, .btn-nav { display: none; }
  .hamburger { display: flex; }

  .hero-content { grid-template-columns: 1fr; text-align: center; gap: 40px; padding-top: 40px; }
  .hero-text p, .hero-text h1 { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: flex; justify-content: center; }

  .paket-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
  .paket-card.featured { transform: scale(1); }
  .kontak-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-actions { justify-content: center; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 540px) {
  .layanan-grid { grid-template-columns: 1fr; }
  .keunggulan-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 280px; }
}