* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #1a1d24;
  --card: #252932;
  --text: #e8eaed;
  --text-muted: #9aa0a6;
  --accent: #f0b429;
  --search-bg: #2d3139;
  --radius: 12px;
  --radius-sm: 8px;
  --green: #34c759;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}

.app {
  max-width: 480px;
  margin: 0 auto;
  padding: 20px 16px 24px;
}

/* Header */
.header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.header-icon {
  font-size: 28px;
  line-height: 1;
  flex-shrink: 0;
}

.header-right {
  flex: 1;
  min-width: 0;
}

.header-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.header-contact-btn {
  position: relative;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 12px 16px;
  padding-top: 14px;
  background: linear-gradient(145deg, #252932 0%, #2d3139 100%);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(240, 180, 41, 0.35);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}

.header-contact-btn:active {
  transform: scale(0.98);
  border-color: rgba(240, 180, 41, 0.5);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.header-contact-dot {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px rgba(52, 199, 89, 0.5);
}

.header-contact-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.01em;
  line-height: 1.4;
}

.header-contact-handle {
  display: inline-flex;
  align-items: center;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 5px 12px;
  background: linear-gradient(135deg, var(--accent) 0%, #d4a02a 100%);
  color: #1a1d24;
  border-radius: 20px;
  font-family: "SF Mono", "Monaco", "Consolas", monospace;
  direction: ltr;
  border: none;
}

/* Search */
.search-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--search-bg);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 12px;
}

.search-icon {
  font-size: 1.1rem;
  opacity: 0.7;
}

.search-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1rem;
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

/* Categories */
.categories {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.cat-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid #3a3f4a;
  background: var(--card);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.cat-btn:active {
  transform: scale(0.96);
}

.cat-btn.active {
  background: var(--accent);
  color: #1a1d24;
  border-color: var(--accent);
  font-weight: 600;
}

.cat-count {
  font-size: 0.72rem;
  opacity: 0.7;
}

/* Album count */
.album-count {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* Album list */
.album-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* App footer (bottom of list) */
.app-footer {
  margin-top: 28px;
  padding: 20px 0 24px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.app-footer-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  line-height: 1.5;
}

.app-footer-support {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  opacity: 0.9;
}

.app-footer-handle {
  display: inline-block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  direction: ltr;
}

.app-footer-handle:active {
  opacity: 0.85;
}

.album-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--card);
  border-radius: var(--radius);
  padding: 12px 14px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
  border: none;
  width: 100%;
  text-align: right;
}

.album-card:active {
  background: #2d3139;
}

.album-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.album-info {
  flex: 1;
  min-width: 0;
}

.album-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.album-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.album-meta-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.album-folder-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  border: none;
}
.album-folder-tag.tag-default { background: #3a3f4a; color: #e8eaed; }
.album-folder-tag.tag-orange { background: linear-gradient(135deg, #e85d04, #f48c06); color: #fff; }
.album-folder-tag.tag-pink { background: linear-gradient(135deg, #ec4899, #f472b6); color: #fff; }
.album-folder-tag.tag-purple { background: linear-gradient(135deg, #7c3aed, #a78bfa); color: #fff; }
.album-folder-tag.tag-rose { background: linear-gradient(135deg, #e11d48, #fb7185); color: #fff; }
.album-folder-tag.tag-red { background: linear-gradient(135deg, #dc2626, #f87171); color: #fff; }
.album-folder-tag.tag-fuchsia { background: linear-gradient(135deg, #c026d3, #e879f9); color: #fff; }
.album-folder-tag.tag-chili { background: linear-gradient(135deg, #b91c1c, #ef4444); color: #fff; }
.album-folder-tag.tag-peach { background: linear-gradient(135deg, #ea580c, #fb923c); color: #fff; }
.album-folder-tag.tag-hot { background: linear-gradient(135deg, #be185d, #f43f5e); color: #fff; }
.album-folder-tag.tag-coral { background: linear-gradient(135deg, #f43f5e, #fb7185); color: #fff; }
.album-folder-tag.tag-gold { background: linear-gradient(135deg, #d97706, #fbbf24); color: #1a1d24; }
.album-folder-tag.tag-violet { background: linear-gradient(135deg, #6d28d9, #8b5cf6); color: #fff; }
.album-folder-tag.tag-magenta { background: linear-gradient(135deg, #9d174d, #db2777); color: #fff; }

.album-chevron {
  font-size: 1.2rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.modal-content {
  position: relative;
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  width: 100%;
  max-width: 340px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  transform: scale(0.92);
  opacity: 0;
  transition: transform 0.25s ease-out, opacity 0.25s ease-out;
}

.modal.is-open .modal-content {
  transform: scale(1);
  opacity: 1;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
  word-break: break-word;
}

/* Password section */
.modal-password-section {
  background: #1e2128;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 14px;
}

.modal-password-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.modal-password-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-password-value {
  flex: 1;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  font-family: "Courier New", Courier, monospace;
  direction: ltr;
  text-align: center;
}

.modal-copy-btn {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--accent);
  color: #1a1d24;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s;
}

.modal-copy-btn:active {
  background: #d9a224;
}

.modal-copy-btn.copied {
  background: var(--green);
  color: #fff;
}

.modal-copy-hint {
  font-size: 0.75rem;
  color: var(--green);
  margin-top: 6px;
  min-height: 1em;
  text-align: center;
}

.modal-link {
  display: block;
  background: var(--accent);
  color: #1a1d24;
  font-weight: 600;
  font-size: 1rem;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  margin-bottom: 10px;
  width: 100%;
  text-align: center;
}

.modal-close {
  display: block;
  width: 100%;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--text-muted);
  color: var(--text);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  cursor: pointer;
}

.modal-contact {
  margin-top: 14px;
  margin-bottom: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

.modal-contact-handle {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  direction: ltr;
  display: inline-block;
}

.modal-contact-handle:active {
  opacity: 0.85;
}

/* Toast */
.toast {
  position: fixed;
  bottom: calc(20px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 12px 20px;
  background: var(--card);
  border: 1px solid rgba(52, 199, 89, 0.4);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: transform 0.3s ease-out, opacity 0.25s, visibility 0.25s;
  max-width: calc(100% - 32px);
}

.toast.is-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: calc(24px + env(safe-area-inset-bottom));
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(240, 180, 41, 0.4);
  background: var(--card);
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s, visibility 0.2s, transform 0.15s;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.back-to-top:active {
  transform: scale(0.95);
}

/* Icon palette for album cards */
.icon-palette {
  background: linear-gradient(135deg, #4a90a4, #5ba3b8);
}
.icon-palette-1 { background: linear-gradient(135deg, #c75a5a, #e07a7a); }
.icon-palette-2 { background: linear-gradient(135deg, #4a7c59, #5d9b6f); }
.icon-palette-3 { background: linear-gradient(135deg, #4a6a9e, #5d82c4); }
.icon-palette-4 { background: linear-gradient(135deg, #8b6b9e, #a87fb5); }
.icon-palette-5 { background: linear-gradient(135deg, #b8864a, #d4a04f); }
.icon-palette-6 { background: linear-gradient(135deg, #4a90a4, #5ba3b8); }
.icon-palette-7 { background: linear-gradient(135deg, #9e5a4a, #b86d5a); }