/* ============================================
   💖 utkulovesude.site — Design System
   ============================================ */

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

/* ---- CSS Custom Properties ---- */
:root {
  /* Colors */
  --color-bg-dark: #0a0a12;
  --color-bg-card: rgba(255, 255, 255, 0.06);
  --color-bg-card-hover: rgba(255, 255, 255, 0.1);
  --color-glass: rgba(255, 255, 255, 0.08);
  --color-glass-border: rgba(255, 255, 255, 0.12);
  --color-primary: #e84393;
  --color-primary-light: #fd79a8;
  --color-primary-glow: rgba(232, 67, 147, 0.4);
  --color-secondary: #a855f7;
  --color-secondary-light: #c084fc;
  --color-accent-gold: #f5c842;
  --color-accent-gold-light: #fde68a;
  --color-text: #f1f1f5;
  --color-text-muted: rgba(241, 241, 245, 0.55);
  --color-text-subtle: rgba(241, 241, 245, 0.35);
  --color-error: #ff6b6b;
  --color-success: #51cf66;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  --gradient-hero: linear-gradient(180deg, transparent 0%, rgba(10, 10, 18, 0.8) 100%);
  --gradient-card: linear-gradient(145deg, rgba(232, 67, 147, 0.08), rgba(168, 85, 247, 0.08));

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-script: 'Dancing Script', cursive;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

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

  /* Shadows */
  --shadow-glow: 0 0 30px var(--color-primary-glow);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.5);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-dark);
  color: var(--color-text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

input {
  font-family: inherit;
  border: none;
  outline: none;
}

/* ============================================
   🔐 LOGIN SCREEN
   ============================================ */

#login-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-dark);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

#login-screen.hidden {
  opacity: 0;
  transform: scale(1.05);
  pointer-events: none;
}

/* Stars Canvas */
#stars-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* Login Card */
.login-card {
  position: relative;
  z-index: 1;
  background: var(--color-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl) var(--space-2xl);
  width: min(420px, 90vw);
  text-align: center;
  box-shadow: var(--shadow-elevated);
  animation: cardFloat 6s ease-in-out infinite;
}

@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Heart Animation */
.heart-container {
  margin-bottom: var(--space-lg);
}

.heart-icon {
  font-size: 3.5rem;
  animation: heartbeat 1.4s ease-in-out infinite;
  display: inline-block;
  filter: drop-shadow(0 0 20px var(--color-primary-glow));
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.15); }
  30% { transform: scale(1); }
  45% { transform: scale(1.1); }
}

/* Hint Text */
.hint-text {
  font-family: var(--font-script);
  font-size: 1.35rem;
  color: var(--color-primary-light);
  margin-bottom: var(--space-xs);
  opacity: 0.9;
}

.hint-subtext {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-xl);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Password Input Group */
.input-group {
  position: relative;
  margin-bottom: var(--space-lg);
}

.password-input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  padding-right: 3rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-text);
  font-size: 1rem;
  text-align: center;
  letter-spacing: 0.15em;
  transition: var(--transition-smooth);
}

.password-input::placeholder {
  color: var(--color-text-subtle);
  letter-spacing: 0.05em;
}

.password-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(232, 67, 147, 0.15);
  background: rgba(255, 255, 255, 0.08);
}

.toggle-password {
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--color-text-subtle);
  transition: var(--transition-fast);
  padding: var(--space-xs);
}

.toggle-password:hover {
  color: var(--color-text-muted);
}

/* Submit Button */
.submit-btn {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.submit-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: var(--transition-fast);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.submit-btn:hover::before {
  opacity: 1;
}

.submit-btn:active {
  transform: translateY(0) scale(0.98);
}

/* Error Message */
.error-msg {
  margin-top: var(--space-md);
  font-size: 0.85rem;
  color: var(--color-error);
  opacity: 0;
  transform: translateY(-5px);
  transition: var(--transition-fast);
}

.error-msg.show {
  opacity: 1;
  transform: translateY(0);
}

/* Shake Animation */
.shake {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-12px); }
  40% { transform: translateX(10px); }
  60% { transform: translateX(-8px); }
  80% { transform: translateX(6px); }
}

/* Heart Burst on Success */
.heart-burst {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  overflow: hidden;
}

.floating-heart {
  position: absolute;
  font-size: 1.5rem;
  animation: floatUp 2s ease-out forwards;
  opacity: 0;
}

@keyframes floatUp {
  0% {
    opacity: 1;
    transform: translateY(100vh) scale(0.5) rotate(0deg);
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(-20vh) scale(1.2) rotate(45deg);
  }
}

/* ============================================
   📸 GALLERY SCREEN
   ============================================ */

#gallery-screen {
  display: none;
  opacity: 0;
  transition: opacity 1s ease;
}

#gallery-screen.visible {
  display: block;
  opacity: 1;
}

/* ---- Hero Section ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(232, 67, 147, 0.15), transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(168, 85, 247, 0.12), transparent 60%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

.hero-content {
  position: relative;
  z-index: 1;
  animation: fadeInUp 1.2s ease-out;
}

.hero-names {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.hero-ampersand {
  font-family: var(--font-script);
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--color-accent-gold);
  display: block;
  margin: var(--space-sm) 0;
  text-shadow: 0 0 30px rgba(245, 200, 66, 0.3);
  -webkit-text-fill-color: var(--color-accent-gold);
}

.hero-subtitle {
  font-family: var(--font-script);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.hero-date {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-primary-light);
  background: rgba(232, 67, 147, 0.1);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  border: 1px solid rgba(232, 67, 147, 0.2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-subtle);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: bounceDown 2s ease-in-out infinite;
}

.scroll-indicator .arrow {
  font-size: 1.2rem;
}

@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ---- Section Styles ---- */
.section {
  padding: var(--space-4xl) var(--space-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  text-align: center;
  margin-bottom: var(--space-sm);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-3xl);
  font-family: var(--font-script);
  font-size: 1.2rem;
}

/* ---- Photo Gallery (Masonry) ---- */
.masonry-grid {
  columns: 3;
  column-gap: var(--space-md);
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.masonry-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-glass-border);
  box-shadow: var(--shadow-card);
}

.masonry-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

.masonry-item:hover img {
  transform: scale(1.05);
}

.masonry-item .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 18, 0.7), transparent 50%);
  opacity: 0;
  transition: var(--transition-smooth);
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg);
}

.masonry-item:hover .overlay {
  opacity: 1;
}

.overlay-text {
  font-family: var(--font-script);
  font-size: 1.1rem;
  color: white;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

/* ---- Video Section ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.video-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
  transition: var(--transition-smooth);
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(232, 67, 147, 0.3);
}

.video-card video {
  width: 100%;
  display: block;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.video-card .video-caption {
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-script);
  font-size: 1.1rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* ---- Lightbox ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-elevated);
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox.active .lightbox-content {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  font-size: 2rem;
  color: white;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  transition: var(--transition-fast);
  z-index: 10;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2.5rem;
  color: white;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  transition: var(--transition-fast);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.15);
}

.lightbox-prev { left: var(--space-xl); }
.lightbox-next { right: var(--space-xl); }

.lightbox-counter {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background: rgba(0, 0, 0, 0.5);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
}

/* ---- Timeline ---- */
.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  padding-left: var(--space-2xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-2xl);
  padding-left: var(--space-xl);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.timeline-item::before {
  content: '💖';
  position: absolute;
  left: calc(-1 * var(--space-2xl) - 8px);
  top: 0;
  font-size: 1rem;
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: var(--space-xs);
}

.timeline-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---- Love Letter / Message Section ---- */
.love-message {
  text-align: center;
  max-width: 650px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-xl);
}

.love-message .quote-mark {
  font-size: 4rem;
  color: var(--color-primary);
  opacity: 0.3;
  line-height: 1;
  font-family: Georgia, serif;
}

.love-message p {
  font-family: var(--font-script);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  color: var(--color-text-muted);
  line-height: 1.8;
  margin: var(--space-md) 0;
}

/* ---- Footer ---- */
.site-footer {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-heart {
  font-size: 2rem;
  animation: heartbeat 1.4s ease-in-out infinite;
  display: inline-block;
  margin-bottom: var(--space-md);
}

.footer-text {
  font-family: var(--font-script);
  font-size: 1.1rem;
  color: var(--color-text-subtle);
}

.footer-year {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-text-subtle);
  margin-top: var(--space-sm);
  opacity: 0.5;
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .masonry-grid {
    columns: 2;
  }
}

@media (max-width: 600px) {
  .masonry-grid {
    columns: 1;
  }

  .login-card {
    padding: var(--space-2xl) var(--space-lg);
    border-radius: var(--radius-lg);
  }

  .hero {
    padding: var(--space-xl);
  }

  .section {
    padding: var(--space-2xl) var(--space-md);
  }

  .lightbox-nav {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }

  .lightbox-prev { left: var(--space-sm); }
  .lightbox-next { right: var(--space-sm); }

  .lightbox-close {
    top: var(--space-md);
    right: var(--space-md);
  }

  .video-grid {
    grid-template-columns: 1fr;
  }

  .timeline {
    padding-left: var(--space-xl);
  }
}

/* ---- Upload Placeholder Styles ---- */
.placeholder-img {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--gradient-card);
  border: 2px dashed var(--color-glass-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-subtle);
  font-size: 0.85rem;
  gap: var(--space-sm);
}

.placeholder-img.landscape {
  aspect-ratio: 4/3;
}

.placeholder-img .icon {
  font-size: 2rem;
  opacity: 0.5;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ---- Music Toggle ---- */
.music-toggle {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 100;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition-smooth);
  display: none; /* Hidden until gallery is shown */
}

.music-toggle.show {
  display: flex;
}

.music-toggle:hover {
  background: var(--color-bg-card-hover);
  transform: scale(1.1);
}

.music-toggle .bars {
  display: flex;
  gap: 2px;
  align-items: flex-end;
  height: 16px;
}

.music-toggle .bar {
  width: 3px;
  background: var(--color-primary-light);
  border-radius: 2px;
  transition: height 0.3s ease;
}

.music-toggle.playing .bar:nth-child(1) { animation: musicBar 0.8s ease-in-out infinite alternate; height: 8px; }
.music-toggle.playing .bar:nth-child(2) { animation: musicBar 0.8s ease-in-out 0.2s infinite alternate; height: 14px; }
.music-toggle.playing .bar:nth-child(3) { animation: musicBar 0.8s ease-in-out 0.4s infinite alternate; height: 6px; }
.music-toggle.playing .bar:nth-child(4) { animation: musicBar 0.8s ease-in-out 0.1s infinite alternate; height: 12px; }

.music-toggle:not(.playing) .bar {
  height: 4px !important;
  animation: none !important;
}

@keyframes musicBar {
  from { height: 4px; }
  to { height: 16px; }
}

/* ============================================
   ⏳ LOADING & EMPTY STATES (Dynamic Gallery)
   ============================================ */
.loading-indicator {
  text-align: center;
  padding: var(--space-2xl) 0;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  background: var(--glass-bg);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  margin: var(--space-xl) 0;
}

.empty-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--space-sm);
  opacity: 0.7;
}

.empty-hint {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}