/* 
  Base Styles & Design System
  Theme: Modern Japanese Minimalist (Light Mode)
*/

:root {
  /* Colors */
  --bg-off-white: #FAF9F6;
  --bg-beige: #F3EFE0;
  --accent-red: #C8102E;
  --accent-red-hover: #A00D24;
  --text-charcoal: #222222;
  --text-light: #555555;
  --text-lighter: #777777;
  --white: #FFFFFF;
  
  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Borders & Shadows */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-pill: 50px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-charcoal);
  background-color: var(--bg-off-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Selection Color */
::selection {
  background-color: var(--accent-red);
  color: var(--white);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-off-white);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-beige);
  border-radius: var(--border-radius-pill);
}
::-webkit-scrollbar-thumb:hover {
  background: #E5E0CB;
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--text-charcoal);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
}

small {
  font-size: 0.85rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-padding {
  padding: 5rem 0;
}

.text-center {
  text-align: center;
}

.text-red {
  color: var(--accent-red);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
}

.btn-primary {
  background-color: var(--accent-red);
  color: var(--white);
}
.btn-primary:hover {
  background-color: var(--accent-red-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(200, 16, 46, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-charcoal);
  border: 1px solid #ddd;
}
.btn-outline:hover {
  background-color: rgba(0, 0, 0, 0.05);
  border-color: var(--text-charcoal);
}

.btn-maps {
  background-color: var(--bg-beige);
  color: var(--text-charcoal);
  border-radius: var(--border-radius-pill);
}
.btn-maps:hover {
  background-color: #E5E0CB;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

/* Nav / Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(250, 249, 246, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: box-shadow var(--transition-normal), background-color var(--transition-normal);
}

.site-header.scrolled {
  background-color: rgba(250, 249, 246, 0.95);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-charcoal);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-link {
  font-weight: 500;
  color: var(--text-light);
  font-size: 0.95rem;
  position: relative;
  padding-bottom: 2px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-red);
  transition: width var(--transition-normal);
}

.nav-link:hover {
  color: var(--accent-red);
}

.nav-link:hover::after {
  width: 100%;
}

/* Hamburger Toggle (Mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-charcoal);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.nav-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Timeline scroll animation states */
.timeline-item,
.section-header {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-item.visible,
.section-header.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Countdown flip animation */
.countdown-number.flip {
  animation: flipDigit 0.5s ease;
}

@keyframes flipDigit {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); color: var(--accent-red); }
  100% { transform: scale(1); }
}

/* Info chip link style */
.info-chip-link {
  text-decoration: none;
  cursor: pointer;
}

.info-chip-link:hover {
  background: rgba(255, 255, 255, 0.25);
}

.chip-arrow {
  font-size: 1rem;
  transition: transform var(--transition-fast);
}

.info-chip-link:hover .chip-arrow {
  transform: translateX(3px);
}

/* Calendar chip tooltip */
.info-chip-calendar {
  position: relative;
}

.info-chip-calendar::after {
  content: 'Simpan ke Google Calendar 📆';
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: var(--text-charcoal);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border-radius: var(--border-radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.info-chip-calendar:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Footer */
.site-footer {
  background-color: var(--text-charcoal);
  color: var(--bg-off-white);
  text-align: center;
  padding: 3rem 1rem;
}

.site-footer .footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.footer-logo {
  font-size: 1.8rem;
}

.footer-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
}

.footer-tagline {
  color: rgba(250, 249, 246, 0.6);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  margin-bottom: 1.5rem;
}

.footer-link {
  color: rgba(250, 249, 246, 0.7);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-red);
}

.footer-divider {
  color: rgba(250, 249, 246, 0.3);
  margin: 0 0.75rem;
}

.footer-copy {
  color: rgba(250, 249, 246, 0.4);
  font-size: 0.8rem;
  margin-bottom: 0;
}