/* PT Ambara Artha Globaltrans — Design System v2.0 */


:root {
  --blue: #1122EE;
  --blue-light: #2233FF;
  --blue-accent: #9FA7FF;
  --bg: #0B0E14;
  --surface: #10131A;
  --surface2: #151922;
  --border: rgba(255,255,255,0.07);
  --text: #F0F2FF;
  --text-muted: #8892AA;
  --white: #FFFFFF;
  --green: #00E5A0;
  --red: #FF4466;
  --yellow: #FFB800;
  --font-head: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(17,34,238,0.15);
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* TYPOGRAPHY */
h1,h2,h3,h4,h5,h6 { font-family: var(--font-head); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
p { color: var(--text-muted); line-height: 1.75; }
a { text-decoration: none; color: inherit; transition: var(--transition); }

/* LAYOUT */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }

/* NAVBAR */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0;
  background: rgba(11,14,20,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.navbar-brand { display: flex; align-items: center; gap: 12px; }
.navbar-logo { width: 36px; height: 36px; background: var(--blue); border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.navbar-brand-text { font-family: var(--font-head); font-weight: 900; font-size: 1rem; letter-spacing: -0.02em; }
.navbar-brand-text span { color: var(--blue-accent); }
.navbar-links { display: flex; align-items: center; gap: 32px; }
.navbar-links a { font-size: 0.875rem; font-weight: 500; color: var(--text-muted); }
.navbar-links a:hover { color: var(--text); }
.navbar-links a.active { color: var(--blue-accent); }
.navbar-actions { display: flex; align-items: center; gap: 12px; }
.lang-toggle { display: flex; background: var(--surface2); border-radius: 100px; padding: 3px; border: 1px solid var(--border); }
.lang-toggle button { padding: 4px 12px; border-radius: 100px; font-size: 0.75rem; font-weight: 700; border: none; cursor: pointer; background: transparent; color: var(--text-muted); transition: var(--transition); }
.lang-toggle button.active { background: var(--blue); color: white; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 100px; font-family: var(--font-head); font-weight: 700; font-size: 0.875rem; cursor: pointer; transition: var(--transition); border: none; letter-spacing: 0.01em; }
.btn-primary { background: var(--blue); color: white; }
.btn-primary:hover { background: var(--blue-light); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--blue-accent); color: var(--blue-accent); }
.btn-sm { padding: 8px 18px; font-size: 0.8125rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }

/* CARDS */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: var(--transition); }
.card:hover { border-color: rgba(159,167,255,0.2); transform: translateY(-2px); }
.card-glass { background: rgba(255,255,255,0.03); backdrop-filter: blur(12px); border: 1px solid var(--border); border-radius: var(--radius); }

/* BADGE */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 100px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.badge-blue { background: rgba(17,34,238,0.15); color: var(--blue-accent); border: 1px solid rgba(17,34,238,0.3); }
.badge-green { background: rgba(0,229,160,0.1); color: var(--green); border: 1px solid rgba(0,229,160,0.2); }
.badge-red { background: rgba(255,68,102,0.1); color: var(--red); border: 1px solid rgba(255,68,102,0.2); }

/* FORM */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--text-muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.05em; }
.form-control { width: 100%; padding: 12px 16px; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-body); font-size: 0.9375rem; transition: var(--transition); }
.form-control:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(17,34,238,0.15); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 120px; }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: center; padding-top: 80px; position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(17,34,238,0.25) 0%, transparent 70%); }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px); background-size: 60px 60px; opacity: 0.4; }

/* SECTION LABELS */
.section-label { font-size: 0.75rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue-accent); margin-bottom: 16px; }
.section-title { margin-bottom: 16px; }
.section-subtitle { font-size: 1.125rem; color: var(--text-muted); max-width: 600px; }

/* STATS */
.stat-number { font-family: var(--font-head); font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 900; color: var(--text); }
.stat-label { font-size: 0.875rem; color: var(--text-muted); margin-top: 4px; }

/* FOOTER */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 60px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 32px; display: flex; align-items: center; justify-content: space-between; }
.footer-copy { font-size: 0.875rem; color: var(--text-muted); }

/* WHATSAPP FAB */
.whatsapp-fab { position: fixed; bottom: 28px; right: 28px; z-index: 999; width: 56px; height: 56px; background: #25D366; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(37,211,102,0.4); transition: var(--transition); }
.whatsapp-fab:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,0.5); }

/* MOBILE MENU */
.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-nav { display: none; position: fixed; inset: 0; z-index: 9999; background: rgba(11,14,20,0.98); backdrop-filter: blur(20px); padding: 24px; flex-direction: column; opacity: 0; transform: translateY(-10px); transition: opacity 0.3s ease, transform 0.3s ease; }
.mobile-nav.open { opacity: 1; transform: translateY(0); }
body.menu-open { overflow: hidden; }

/* CONTACT GRID HELPERS */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* GRID HELPERS */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* DIVIDER */
.divider { height: 1px; background: var(--border); margin: 48px 0; }

/* TOAST */
.toast { position: fixed; bottom: 100px; right: 28px; z-index: 9999; padding: 14px 20px; border-radius: var(--radius-sm); font-size: 0.875rem; font-weight: 600; animation: slideUp 0.3s ease; }
.toast-success { background: var(--green); color: #000; }
.toast-error { background: var(--red); color: white; }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .navbar-links, .navbar-actions { display: none; }
  .mobile-menu-btn { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .section { padding: 64px 0; }
  
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  
  .whatsapp-fab { bottom: 20px; right: 20px; width: 50px; height: 50px; }
  .whatsapp-fab svg { width: 24px; height: 24px; }
}

/* ANIMATIONS */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
.animate-fade-up { animation: fadeInUp 0.6s ease forwards; }
.animate-delay-1 { animation-delay: 0.1s; opacity: 0; }
.animate-delay-2 { animation-delay: 0.2s; opacity: 0; }
.animate-delay-3 { animation-delay: 0.3s; opacity: 0; }