/* 
  Khazanah Iman Travel - Design System
  Based on specs.md
*/

:root {
  /* Colors - Primary (Deep Dark) */
  --color-primary-950: #0C0D0A;
  --color-primary-900: #13140F;
  --color-primary-800: #1C1F17;
  --color-primary-700: #272B1E;

  /* Accent (Gold/Warm) */
  --color-accent:       #C9A84C;
  --color-accent-dark:  #A8863A;
  --color-accent-light: #E0C47A;
  --color-accent-tint:  rgba(201, 168, 76, 0.10);

  /* Secondary (Teal/Islamic) */
  --color-secondary:       #3D7A6E;
  --color-secondary-light: #5FA394;

  /* Warm Neutral (Sand/Marble) */
  --color-sand-50:  #FAF7F0;
  --color-sand-100: #F2ECD8;
  --color-sand-300: #D4C49A;
  --color-sand-500: #A8916A;
  --color-sand-700: #6B5C42;
  --color-sand-900: #352D20;

  /* Surface / Leveling */
  --color-surface-card:    #181B12;
  --color-surface-raised:  #1E2219;
  --color-surface-overlay: rgba(12, 13, 10, 0.82);

  /* Text */
  --color-text-primary:   #FAF7F0;
  --color-text-secondary: #D4C49A;
  --color-text-muted:     #A8916A;
  --color-text-inverse:   #0C0D0A;

  /* Status */
  --color-success: #4ADE80;
  --color-error:   #F87171;
  --color-warning: #FBBF24;
  --color-info:    #60A5FA;

  /* Typography Scale */
  --text-xs:   0.6875rem; /* 11px */
  --text-sm:   0.8125rem; /* 13px */
  --text-base: 1rem;      /* 16px */
  --text-lg:   1.125rem;  /* 18px */
  --text-xl:   1.375rem;  /* 22px */
  --text-2xl:  1.625rem;  /* 26px */
  --text-3xl:  2rem;      /* 32px */
  --text-4xl:  2.625rem;  /* 42px */
  --text-5xl:  3.25rem;   /* 52px */
  --text-6xl:  4.5rem;    /* 72px */

  /* Spacing Grid */
  --space-1:   4px;
  --space-2:   8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* Radius */
  --radius-xs:   2px;
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:  12px;
  --radius-xl:  20px;
  --radius-2xl: 28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs:  0 1px 3px rgba(0,0,0,0.30);
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.35);
  --shadow-md:  0 6px 20px rgba(0,0,0,0.40);
  --shadow-lg:  0 12px 36px rgba(0,0,0,0.45);
  --shadow-xl:  0 20px 56px rgba(0,0,0,0.50);
  --shadow-accent: 0 4px 28px rgba(201, 168, 76, 0.22);
  --shadow-card-hover: 0 8px 32px rgba(0,0,0,0.50), 0 0 0 1px rgba(201,168,76,0.15);

  /* Animation */
  --dur-instant:  100ms;
  --dur-fast:     150ms;
  --dur-base:     200ms;
  --dur-moderate: 300ms;
  --dur-enter:    400ms;
  --dur-slow:     550ms;
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-enter:    cubic-bezier(0, 0, 0.2, 1);
  --ease-exit:     cubic-bezier(0.4, 0, 1, 1);
  --ease-spring:   cubic-bezier(0.34, 1.15, 0.64, 1);
}

/* Reset & Global */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--color-primary-950);
  color: var(--color-text-primary);
  font-family: 'Nunito Sans', sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, .font-serif {
  font-family: 'Playfair Display', serif;
  line-height: 1.1;
  font-weight: 700;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--dur-base) var(--ease-standard);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-10);
  }
}

section {
  padding: var(--space-16) 0;
}

@media (min-width: 1024px) {
  section {
    padding: var(--space-24) 0;
  }
}

/* Typography Helpers */
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-6xl { font-size: var(--text-6xl); }

.uppercase { text-transform: uppercase; }
.tracking-widest { letter-spacing: 0.12em; }
.font-bold { font-weight: 700; }
.text-accent { color: var(--color-accent); }
.text-accent-light { color: var(--color-accent-light); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--dur-base) var(--ease-standard);
  border: none;
  gap: var(--space-2);
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  box-shadow: var(--shadow-accent);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-secondary:hover {
  background-color: var(--color-accent-tint);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: #25D366;
  color: white;
}

.btn-whatsapp:hover {
  filter: brightness(0.9);
  transform: translateY(-2px);
}

.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn-xs { padding: 4px 12px; font-size: 10px; }

/* Navbar */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 68px;
  display: flex;
  align-items: center;
  z-index: 1000;
  transition: all var(--dur-moderate) var(--ease-standard);
  border-bottom: 1px solid transparent;
}

#navbar.scrolled {
  background-color: var(--color-primary-800);
  border-bottom: 1px solid var(--color-primary-700);
  height: 60px;
  box-shadow: var(--shadow-sm);
}

.navbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand {
  display: flex;
  flex-direction: column;
}

.nav-links {
  display: flex;
  gap: var(--space-8);
}

.nav-link {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.wa-info {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--color-primary-950);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--dur-moderate);
}

.mobile-nav-overlay.open {
  opacity: 0.98;
  visibility: visible;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.mobile-link {
  font-family: 'Playfair Display', serif;
  font-size: var(--text-2xl);
  color: var(--color-text-primary);
}

.close-btn {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 2rem;
  cursor: pointer;
}

#mobile-menu-toggle {
  background: none;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background-image: url('images/hero.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--color-primary-950) 0%, var(--color-surface-overlay) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
}

.badge-ppiu {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-accent-tint);
  border: 1px solid rgba(201, 168, 76, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-accent-light);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-6);
}

.hero-title {
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.hero-subtitle {
  margin-bottom: var(--space-10);
  max-width: 480px;
  color: var(--color-text-secondary);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-enter) var(--ease-enter), transform var(--dur-enter) var(--ease-enter);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Trust Strip */
.trust-strip-section {
  border-top: 1px solid var(--color-primary-700);
  border-bottom: 1px solid var(--color-primary-700);
  background-color: var(--color-surface-raised);
}

.strip-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .strip-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.strip-item {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.strip-text {
  display: flex;
  flex-direction: column;
}

.strip-text .val {
  font-family: 'Playfair Display', serif;
  font-size: var(--text-2xl);
  color: var(--color-accent-light);
  line-height: 1;
}

.strip-text .label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

/* Packages */
.package-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

@media (min-width: 1024px) {
  .package-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.package-card {
  background-color: var(--color-surface-card);
  border: 1px solid var(--color-primary-700);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--dur-base) var(--ease-standard);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.package-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(201, 168, 76, 0.3);
}

.package-card.featured {
  border: 1px solid var(--color-accent);
}

.featured-label {
  position: absolute;
  top: 0;
  right: var(--space-6);
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  padding: 4px 14px;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  border-bottom-left-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
}

.package-header {
  padding: var(--space-10);
  text-align: center;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.badge-reguler { background-color: var(--color-sand-500); color: white; }
.badge-plus { background-color: var(--color-accent); color: var(--color-text-inverse); }
.badge-furoda { background-color: var(--color-secondary); color: white; }

.package-info {
  margin: 0 var(--space-6);
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-primary-700);
  border-bottom: 1px solid var(--color-primary-700);
}

.package-features {
  padding: var(--space-6) var(--space-8);
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.feature-list li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 800;
}

.package-footer {
  padding: var(--space-6) var(--space-8) var(--space-10);
}

/* Inclusion / Exclusion */
.inclusion-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

@media (min-width: 1024px) {
  .inclusion-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-20);
  }
}

.inclusion-panel {
  background-color: var(--color-surface-card);
  padding: var(--space-10);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-primary-700);
}

.check-list, .cross-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.check-list li::before { content: '✓'; color: var(--color-success); margin-right: var(--space-4); font-weight: 800; }
.cross-list li::before { content: '✕'; color: var(--color-sand-500); margin-right: var(--space-4); font-weight: 800; }

/* Procedure Stepper */
.procedure-stepper {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  position: relative;
}

@media (min-width: 1024px) {
  .procedure-stepper {
    flex-direction: row;
    justify-content: space-between;
  }
}

.step {
  flex: 1;
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  background-color: var(--color-primary-900);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Playfair Display', serif;
  font-size: var(--text-xl);
  font-weight: 700;
  margin: 0 auto var(--space-6);
}

.step-divider {
  display: none;
  flex: 0.5;
  height: 1px;
  border-top: 1px dashed var(--color-primary-700);
  margin-top: 24px;
}

@media (min-width: 1024px) {
  .step-divider { display: block; }
}

/* Schedule Table */
.schedule-table-card {
  background-color: var(--color-surface-card);
  border: 1px solid var(--color-primary-700);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table-responsive {
  overflow-x: auto;
}

.schedule-table {
  width: 100%;
  border-collapse: collapse;
}

.schedule-table th {
  background-color: var(--color-primary-800);
  padding: var(--space-5) var(--space-6);
  text-align: left;
  font-size: 10px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

.schedule-table td {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-primary-700);
  font-size: var(--text-sm);
}

.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 800;
}

.status-success { background-color: rgba(74, 222, 128, 0.1); color: var(--color-success); }
.status-warning { background-color: rgba(251, 191, 36, 0.1); color: var(--color-warning); }
.status-muted { background-color: var(--color-primary-700); color: var(--color-text-muted); }

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

@media (min-width: 1024px) {
  .testimonial-grid { grid-template-columns: 1fr 1fr; }
}

.testimonial-card {
  padding: var(--space-12);
  background-color: var(--color-surface-raised);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-primary-700);
  position: relative;
}

.testimonial-card::after {
  content: '"';
  position: absolute;
  top: var(--space-8);
  right: var(--space-8);
  font-family: 'Playfair Display', serif;
  font-size: 80px;
  color: var(--color-primary-700);
  line-height: 1;
}

.testimonial-content {
  font-family: 'Playfair Display', serif;
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text-primary);
  margin-bottom: var(--space-8);
  position: relative;
  z-index: 1;
}

.user-name { display: block; font-weight: 700; color: var(--color-accent-light); }
.user-meta { display: block; font-size: var(--text-xs); color: var(--color-text-muted); }

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-grid { grid-template-columns: 1.2fr 0.8fr; }
}

.image-wrapper {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 4/3;
}

.img-placeholder {
  width: 100%;
  height: 100%;
  background-image: url('images/office.png');
  background-size: cover;
  background-position: center;
}

.office-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 100%);
  padding: var(--space-10);
}

/* FAQ */
.faq-accordion {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-primary-700);
}

.faq-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6) 0;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-family: 'Nunito Sans', sans-serif;
  font-size: var(--text-base);
  font-weight: 700;
  cursor: pointer;
  text-align: left;
}

.chevron { transition: transform var(--dur-moderate) var(--ease-spring); color: var(--color-accent); }
.faq-item.active .chevron { transform: rotate(180deg); }

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: all var(--dur-moderate) var(--ease-standard);
}

.faq-item.active .faq-content {
  max-height: 300px;
  padding-bottom: var(--space-6);
}

/* Registration Form */
.registration-panel {
  background-color: var(--color-surface-card);
  padding: var(--space-10);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-primary-700);
}

@media (min-width: 1024px) {
  .registration-panel { padding: var(--space-16); }
}

.registration-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
}

@media (min-width: 1024px) {
  .registration-grid { grid-template-columns: 1fr 400px; }
}

.form-group {
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-secondary);
}

.form-group input, .form-group select, .form-group textarea {
  background-color: var(--color-primary-900);
  border: 1px solid var(--color-primary-700);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--text-base);
  transition: all var(--dur-base);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-tint);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.error-msg { font-size: 10px; color: var(--color-error); height: 14px; margin-top: 4px; }

/* Floating WA */
.floating-wa-btn {
  position: fixed;
  right: var(--space-6);
  bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--dur-moderate) var(--ease-standard);
  pointer-events: none;
}

.floating-wa-btn.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.wa-label {
  background-color: white;
  color: var(--color-primary-950);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  font-weight: 800;
  font-size: var(--text-sm);
}

.wa-icon {
  width: 56px;
  height: 56px;
  background-color: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(37, 211, 102, 0.2); }
  100% { transform: scale(1); }
}

.floating-wa-btn.pulse .wa-icon {
  animation: pulse 0.5s ease-in-out 3;
}

/* Footer */
.footer-section {
  background-color: var(--color-primary-950);
  padding: var(--space-24) 0 var(--space-12);
  border-top: 1px solid var(--color-primary-700);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
}

@media (min-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; } }

.footer-nav { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.footer-nav a { font-size: var(--text-sm); color: var(--color-text-secondary); }
.footer-nav a:hover { color: var(--color-accent); }

.legal-badge {
  padding: var(--space-6);
  background-color: var(--color-primary-800);
  border: 1px solid var(--color-primary-700);
  border-radius: var(--radius-md);
}

/* Helpers */
.hidden { display: none; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mx-auto { margin-left: auto; margin-right: auto; }
.w-full { width: 100%; }
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }
.gap-4 { gap: var(--space-4); }
.gap-8 { gap: var(--space-8); }
.italic { font-style: italic; }
.max-w-xl { max-width: 480px; }
.max-w-2xl { max-width: 720px; }

.desktop-only { display: none; }
@media (min-width: 1024px) { .desktop-only { display: flex; } }

.mobile-only { display: block; }
@media (min-width: 1024px) { .mobile-only { display: none; } }