/* ==========================================================================
   Silvia Tabor - Modern Classical & Editorial Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&display=swap');

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #141923;
  --bg-elevated: #1a2232;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(212, 175, 55, 0.35);
  
  --gold-primary: #c5a880;
  --gold-light: #e2cca8;
  --gold-dark: #9f835b;
  
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #8492a6;
  
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(197, 168, 128, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(20, 25, 35, 0.8) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6, .font-serif {
  font-family: var(--font-serif);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 42px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-primary), transparent);
}

h3 {
  font-size: 1.35rem;
  color: var(--text-primary);
}

p {
  margin-bottom: 1.25rem;
}

a {
  color: var(--gold-light);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: #ffffff;
  text-decoration: none;
}

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

/* --------------------------------------------------------------------------
   Layout & Container
   -------------------------------------------------------------------------- */
.site-wrapper {
  flex: 1 0 auto;
  width: 100%;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.page-header {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2.5rem;
}

.page-title {
  margin-bottom: 0.5rem;
}

.page-subtitle {
  color: var(--gold-primary);
  font-size: 1.1rem;
  font-style: italic;
  font-family: var(--font-serif);
}

/* --------------------------------------------------------------------------
   Navigation Bar
   -------------------------------------------------------------------------- */
.site-header {
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: 1180px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-logo {
  height: 48px;
  width: auto;
  border-radius: var(--radius-sm);
}

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

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.78rem;
  color: var(--gold-primary);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0.85rem;
  right: 0.85rem;
  height: 2px;
  background: var(--gold-primary);
  border-radius: 2px;
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.mobile-toggle svg {
  width: 24px;
  height: 24px;
  display: block;
}

@media (max-width: 992px) {
  .mobile-toggle {
    display: block;
  }
  
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.5rem;
    gap: 0.5rem;
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .nav-link {
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }
}

/* --------------------------------------------------------------------------
   Cards & Content Blocks
   -------------------------------------------------------------------------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.card:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-title {
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(197, 168, 128, 0.12);
  color: var(--gold-primary);
  border: 1px solid rgba(197, 168, 128, 0.25);
}

/* --------------------------------------------------------------------------
   Grid Layouts
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-sidebar {
  grid-template-columns: 2fr 1fr;
  align-items: start;
}

@media (max-width: 880px) {
  .grid-2, .grid-3, .grid-4, .grid-sidebar {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
  color: #0d1117;
  box-shadow: 0 4px 14px rgba(197, 168, 128, 0.25);
}

.btn-gold:hover {
  background: linear-gradient(135deg, var(--gold-light), var(--gold-primary));
  color: #0d1117;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(197, 168, 128, 0.35);
}

.btn-outline {
  border-color: var(--border-gold);
  color: var(--gold-light);
  background: transparent;
}

.btn-outline:hover {
  background: rgba(197, 168, 128, 0.1);
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   Hero Section (Home)
   -------------------------------------------------------------------------- */
.hero {
  padding: 3.5rem 0 4rem;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--gold-primary);
  font-style: italic;
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-gold);
}

.hero-image-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

.hero-image {
  width: 100%;
  height: 480px;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.6s ease;
}

.hero-image-frame:hover .hero-image {
  transform: scale(1.03);
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 2rem 0;
    gap: 2rem;
  }
  .hero-image {
    height: 380px;
  }
}

/* --------------------------------------------------------------------------
   Book Showcase & Details
   -------------------------------------------------------------------------- */
.book-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.book-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.book-cover-wrap {
  background: #090c10;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-color);
}

.book-cover-img {
  max-height: 280px;
  width: auto;
  border-radius: 4px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  transition: transform 0.3s ease;
}

.book-card:hover .book-cover-img {
  transform: scale(1.04);
}

.book-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.book-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.book-year {
  color: var(--gold-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.audio-box {
  background: rgba(197, 168, 128, 0.08);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin: 1.5rem 0;
}

.audio-box-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gold-light);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

audio {
  width: 100%;
  border-radius: var(--radius-full);
  outline: none;
}

/* --------------------------------------------------------------------------
   Events Timeline
   -------------------------------------------------------------------------- */
.event-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--gold-primary);
  border-radius: var(--radius-sm) var(--radius-md) var(--radius-md) var(--radius-sm);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.event-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-gold);
  border-left-color: var(--gold-light);
  transform: translateX(4px);
}

.event-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gold-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.event-title {
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
}

.event-ensemble {
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.event-program {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   Media & Press
   -------------------------------------------------------------------------- */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  background: #000;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.press-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition);
}

.press-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: auto;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 2rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.footer-brand h4 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.footer-brand p {
  color: var(--gold-primary);
  font-size: 0.85rem;
  margin-bottom: 0;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-icon:hover {
  background: var(--gold-primary);
  color: #0d1117;
  border-color: var(--gold-primary);
  transform: translateY(-2px);
}

.social-icon svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-bottom {
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}