:root {
  --bg: #000;
  --card: #111;
  --accent: #f2c200;
  --text: #fff;
  --timeline-line: #222;
  --entry-bg: #181818;
}

html,
body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  scroll-behavior: smooth;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(2px 2px at 20px 30px, white, transparent),
    radial-gradient(2px 2px at 60px 70px, white, transparent),
    radial-gradient(1px 1px at 50px 50px, white, transparent),
    radial-gradient(1px 1px at 130px 80px, white, transparent),
    radial-gradient(2px 2px at 90px 10px, white, transparent),
    radial-gradient(1px 1px at 200px 150px, white, transparent),
    radial-gradient(1px 1px at 170px 100px, white, transparent),
    radial-gradient(2px 2px at 250px 50px, white, transparent),
    radial-gradient(1px 1px at 300px 120px, white, transparent),
    radial-gradient(1px 1px at 320px 80px, white, transparent);
  background-size: 350px 200px;
  background-repeat: repeat;
  animation: stars 120s linear infinite;
  pointer-events: none;
  z-index: 1;
  opacity: 0.6;
}

body.light-mode::before {
  opacity: 0;
}

@keyframes stars {
  from {
    transform: translateY(0);
  }

  to {
    transform: translateY(-200px);
  }
}

header,
section,
main,
footer,
.modal {
  position: relative;
  z-index: 2;
}

body.light-mode {
  --bg: #f8f8f8;
  --card: #ffffff;
  --text: #333333;
  --accent: #d62828;
  --timeline-line: #cccccc;
  --entry-bg: #e0e0e0;
}

header {
  padding: 18px;
  text-align: center;
}

.title {
  font-size: 26px;
  color: var(--accent);
  margin: 0;
}

.lead {
  font-size: 13px;
  margin: 8px 0;
}

.cta-row {
  margin-top: 12px;
}

.btn {
  padding: 8px 12px;
  border-radius: 8px;
  border: 0;
  cursor: pointer;
  margin: 6px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  transform: translateY(0);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn:active {
  transform: translateY(0);
}

.glow {
  background: var(--accent);
  color: #000;
  box-shadow: 0 0 20px rgba(242, 194, 0, 0.4);
}

.glow:hover {
  box-shadow: 0 0 30px rgba(242, 194, 0, 0.6), 0 6px 20px rgba(0, 0, 0, 0.3);
}

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

.card {
  background: var(--card);
  padding: 14px;
  margin: 14px;
  border-radius: 12px;
}

#heartfelt,
#photos {
  background: transparent;
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 8px auto;
  padding: 10px 18px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background: var(--timeline-line);
}

.entry {
  position: relative;
  width: calc(50% - 40px);
  padding: 10px;
  margin: 18px 0;
  background: var(--entry-bg);
  border-radius: 10px;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.entry.visible {
  opacity: 1;
  transform: translateY(0);
}

.entry .polaroid {
  background: var(--card);
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--timeline-line);
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.entry .polaroid:hover {
  transform: translateY(-8px) rotate(2deg);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

.entry .polaroid:active {
  animation: shake 0.3s ease;
}

@keyframes shake {

  0%,
  100% {
    transform: translateY(-8px) rotate(2deg);
  }

  25% {
    transform: translateY(-8px) rotate(-3deg);
  }

  75% {
    transform: translateY(-8px) rotate(3deg);
  }
}

.entry img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--timeline-line);
  transition: filter 0.3s ease, transform 0.3s ease;
}

.entry .polaroid:hover img {
  filter: brightness(1.1) saturate(1.1);
  transform: scale(1.02);
}

.entry .caption {
  margin-top: 8px;
  font-size: 13px;
  color: #ddd;
}

body.light-mode .entry .caption {
  color: #666;
}

.entry .date {
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 6px;
}

.entry .tape {
  position: absolute;
  top: -8px;
  right: 12px;
  width: 36px;
  height: 12px;
  background: rgba(242, 194, 0, 0.14);
  transform: rotate(-6deg);
  border-radius: 2px;
}

.left {
  left: 0;
}

.right {
  left: 50%;
}

.entry::after {
  content: '';
  position: absolute;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(242, 194, 0, 0.12);
}

.left::after {
  right: -6px;
}

.right::after {
  left: -6px;
}

@media(max-width:720px) {
  .timeline::before {
    left: 10px;
    transform: none;
  }

  .entry {
    width: 100%;
    left: 0;
    margin-left: 26px;
    padding: 12px;
  }

  .right {
    left: 0;
  }

  .entry::after {
    left: 6px;
  }

  .title {
    font-size: 22px;
  }

  .lead {
    font-size: 12px;
  }

  .btn {
    padding: 6px 10px;
    font-size: 13px;
    margin: 4px;
  }

  header {
    padding: 12px;
  }

  .card {
    padding: 12px;
    margin: 10px;
  }

  .modal-content {
    padding: 16px;
    border-radius: 12px;
  }

  .modal-nav button {
    padding: 6px 12px;
    font-size: 13px;
  }
}

footer {
  padding: 16px;
  text-align: center;
  color: #bbb;
  font-size: 13px;
}

#confettiCanvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 10000;
  justify-content: center;
  align-items: center;
  padding: 20px;
  animation: fadeIn 0.3s ease;
}

.modal.active {
  display: flex;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.modal-content {
  position: relative;
  max-width: 800px;
  max-height: 90vh;
  background: var(--card);
  border-radius: 16px;
  padding: 24px;
  animation: slideUp 0.4s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px) scale(0.9);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-content img {
  width: 100%;
  max-height: 60vh;
  object-fit: contain;
  border-radius: 12px;
  margin-bottom: 16px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent);
  color: #000;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease;
}

.modal-close:hover {
  transform: rotate(90deg);
}

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

.modal-text h3 {
  color: var(--accent);
  margin: 0 0 8px 0;
}

.modal-text p {
  color: var(--text);
  margin: 0 0 16px 0;
}

.modal-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.modal-nav button {
  background: var(--accent);
  color: #000;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
  transition: opacity 0.2s ease;
}

.modal-nav button:hover {
  opacity: 0.8;
}

.modal-nav button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.modal-nav button:active:not(:disabled) {
  transform: scale(0.95);
}

#photoCounter {
  font-size: 12px !important;
  color: var(--accent) !important;
  margin-top: 12px !important;
  margin-bottom: 0 !important;
  opacity: 0.8;
}

#secondarySurpriseBtn {
  display: block;
  margin: 50px auto 30px;
  padding: 18px 45px;
  background: #00bcd4;
  color: white;
  border: none;
  border-radius: 30px;
  font-size: 1.2em;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  text-transform: uppercase;
}

#secondarySurpriseBtn:hover {
  background: #0097a7;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}