/* ==========================================================================
   SYSTAVA BRAND CSS — FONDASI SISTEM DESAIN
   Versi: 1.0 · Mei 2026
   Brand Palette dari logo: Navy #0F1234 · Blue #2A5BD9 · Cyan #25C5E8
   ========================================================================== */

:root {
  /* === BRAND COLORS === */
  --brand-navy-darkest: #0A0D24;
  --brand-navy: #0F1234;
  --brand-navy-soft: #1B2057;
  --brand-blue-dark: #1E47C2;
  --brand-blue: #2A5BD9;
  --brand-blue-light: #4F7CE8;
  --brand-cyan-dark: #18AECF;
  --brand-cyan: #25C5E8;
  --brand-cyan-light: #6FDDF1;

  /* Brand surfaces */
  --brand-bg-soft: #F4F7FE;
  --brand-bg-cyan-soft: #E8F8FC;
  --brand-bg-navy-soft: #E6E8F4;

  /* === NEUTRALS === */
  --gray-50: #FAFBFC;
  --gray-100: #F4F5F8;
  --gray-200: #E5E8ED;
  --gray-300: #CDD2DC;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* === SEMANTIC === */
  --color-success: #10B981;
  --color-success-bg: #ECFDF5;
  --color-warning: #F59E0B;
  --color-warning-bg: #FFFBEB;
  --color-danger: #EF4444;
  --color-danger-bg: #FEF2F2;
  --color-info: var(--brand-blue);
  --color-info-bg: var(--brand-bg-soft);

  /* === TYPOGRAPHY === */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Manrope', var(--font-sans);

  /* === SPACING & RADIUS === */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  /* === SHADOWS === */
  --shadow-sm: 0 1px 2px rgba(15, 18, 52, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 18, 52, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 18, 52, 0.12);
  --shadow-brand: 0 8px 24px rgba(42, 91, 217, 0.25);

  /* === GRADIENTS === */
  --grad-brand: linear-gradient(135deg, #0F1234 0%, #2A5BD9 60%, #25C5E8 100%);
  --grad-blue: linear-gradient(135deg, #2A5BD9 0%, #25C5E8 100%);
  --grad-soft: linear-gradient(180deg, #F4F7FE 0%, #FFFFFF 100%);
}

/* === RESET & BASE === */
* { box-sizing: border-box; margin: 0; padding: 0; }
*:focus-visible { outline: 2px solid var(--brand-blue); outline-offset: 2px; border-radius: var(--radius-sm); }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--brand-blue); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--brand-blue-dark); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--brand-navy);
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.625rem); }
h4 { font-size: 1.125rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* === LAYOUT === */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
.container-narrow { max-width: 880px; margin: 0 auto; padding: 0 1.25rem; }
.section { padding: 4rem 0; }
.section-tight { padding: 2.5rem 0; }
@media (min-width: 768px) { .section { padding: 5.5rem 0; } }

/* === DEMO BANNER (Sticky di atas) === */
.demo-banner {
  background: var(--grad-brand);
  color: #fff;
  padding: 0.625rem 1rem;
  text-align: center;
  font-size: 0.875rem;
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.demo-banner-tag {
  background: rgba(255,255,255,0.2);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.demo-banner a {
  color: #25C5E8;
  font-weight: 600;
  border-bottom: 1px solid currentColor;
}
.demo-banner a:hover { color: #fff; }

/* === NAVBAR === */
.navbar {
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 38px;
  z-index: 90;
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1.25rem;
  max-width: 1200px;
  margin: 0 auto;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--brand-navy);
}
.navbar-brand-mark {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--grad-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.125rem;
  box-shadow: var(--shadow-brand);
}
.navbar-menu {
  display: none;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
}
.navbar-menu a {
  color: var(--gray-700);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: all 0.15s;
}
.navbar-menu a:hover {
  background: var(--brand-bg-soft);
  color: var(--brand-blue);
}
.navbar-menu a.active {
  background: var(--brand-bg-soft);
  color: var(--brand-blue);
  font-weight: 600;
}
.navbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  background: var(--grad-blue);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  transition: transform 0.15s, box-shadow 0.15s;
}
.navbar-cta:hover { color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-brand); }

.navbar-toggle {
  background: none;
  border: 1px solid var(--gray-200);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (min-width: 1024px) {
  .navbar-menu { display: flex; }
  .navbar-toggle { display: none; }
}

/* Mobile menu */
.mobile-menu {
  display: none;
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: 1rem 1.25rem;
}
.mobile-menu.open { display: block; }
.mobile-menu ul { list-style: none; }
.mobile-menu a {
  display: block;
  padding: 0.75rem 0;
  color: var(--gray-700);
  font-weight: 500;
  border-bottom: 1px solid var(--gray-100);
}

/* === HERO === */
.hero {
  background: var(--grad-brand);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: 4rem 0 5rem;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(37,197,232,0.25) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -150px; left: -150px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(37,197,232,0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-inner { position: relative; z-index: 1; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(37,197,232,0.15);
  border: 1px solid rgba(37,197,232,0.3);
  color: #25C5E8;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.hero h1 { color: #fff; margin-bottom: 1rem; }
.hero-lead { font-size: 1.125rem; color: rgba(255,255,255,0.85); max-width: 600px; margin-bottom: 2rem; line-height: 1.65; }
.hero-cta-group { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
  font-family: inherit;
}
.btn-primary {
  background: var(--grad-blue);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover { color: #fff; transform: translateY(-1px); }

.btn-white { background: #fff; color: var(--brand-navy); }
.btn-white:hover { color: var(--brand-blue); }

.btn-outline-white { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.5); }
.btn-outline-white:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: #fff; }

.btn-outline {
  background: #fff;
  color: var(--brand-blue);
  border: 1.5px solid var(--gray-200);
}
.btn-outline:hover { border-color: var(--brand-blue); background: var(--brand-bg-soft); }

.btn-ghost { background: transparent; color: var(--brand-blue); }
.btn-ghost:hover { background: var(--brand-bg-soft); }

.btn-sm { padding: 0.5rem 1rem; font-size: 0.8125rem; }
.btn-lg { padding: 1rem 2rem; font-size: 1rem; }

/* === CARDS === */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all 0.2s;
}
.card-hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand-blue); }

.card-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--brand-bg-soft);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}
.card-icon-cyan { background: var(--brand-bg-cyan-soft); color: var(--brand-cyan-dark); }
.card-icon-navy { background: var(--brand-bg-navy-soft); color: var(--brand-navy); }

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-blue { background: var(--brand-bg-soft); color: var(--brand-blue); }
.badge-cyan { background: var(--brand-bg-cyan-soft); color: var(--brand-cyan-dark); }
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: #B45309; }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-navy { background: var(--brand-navy); color: var(--brand-cyan); }

/* === GRID === */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* === FORMS === */
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.375rem;
}
.form-label .req { color: var(--color-danger); }
.form-control {
  width: 100%;
  padding: 0.75rem 0.875rem;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-family: inherit;
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-control:focus {
  outline: none;
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(42,91,217,0.12);
}
.form-control::placeholder { color: var(--gray-400); }
textarea.form-control { resize: vertical; min-height: 100px; }
.form-help { font-size: 0.8125rem; color: var(--gray-500); margin-top: 0.375rem; }

/* === SECTION HEADER === */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header .eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-blue);
  margin-bottom: 0.75rem;
}
.section-header h2 { margin-bottom: 0.75rem; }
.section-header p { color: var(--gray-600); font-size: 1.0625rem; max-width: 640px; margin: 0 auto; }

/* === FOOTER === */
.footer {
  background: var(--brand-navy);
  color: rgba(255,255,255,0.7);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.footer h4 { color: #fff; font-size: 0.875rem; margin-bottom: 1rem; text-transform: uppercase; letter-spacing: 0.08em; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 0.625rem; }
.footer ul a { color: rgba(255,255,255,0.7); font-size: 0.9375rem; }
.footer ul a:hover { color: var(--brand-cyan); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.875rem;
  text-align: center;
}
@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}

/* === SYSTAVA CTA BAR (di setiap halaman publik) === */
.systava-cta {
  background: var(--grad-brand);
  color: #fff;
  padding: 3rem 0;
  position: relative;
  overflow: hidden;
}
.systava-cta::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 300px; height: 100%;
  background: radial-gradient(circle, rgba(37,197,232,0.2) 0%, transparent 70%);
}
.systava-cta-inner { position: relative; z-index: 1; text-align: center; }
.systava-cta h3 { color: #fff; font-size: 1.5rem; margin-bottom: 0.75rem; }
.systava-cta p { color: rgba(255,255,255,0.85); margin-bottom: 1.5rem; }
.systava-cta-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

/* === ALERT / NOTICE === */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}
.alert-info { background: var(--brand-bg-soft); border-color: var(--brand-blue); color: var(--brand-navy); }
.alert-success { background: var(--color-success-bg); border-color: var(--color-success); color: #064E3B; }
.alert-warning { background: var(--color-warning-bg); border-color: var(--color-warning); color: #78350F; }
.alert-danger { background: var(--color-danger-bg); border-color: var(--color-danger); color: #7F1D1D; }

/* === UTILITIES === */
.text-center { text-align: center; }
.text-muted { color: var(--gray-500); }
.text-brand { color: var(--brand-blue); }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 0.5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; } .mb-4 { margin-bottom: 2rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

/* === ICON (gunakan Tabler Icons via CDN) === */
.icon { display: inline-block; vertical-align: middle; }
.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 20px; height: 20px; }
.icon-lg { width: 24px; height: 24px; }