@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;700;900&family=IBM+Plex+Mono:wght@400;700&display=swap');

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

:root {
  --black: #1a1a1a;
  --white: #f5f0e8;
  --yellow: #ffd700;
  --blue: #0066ff;
  --pink: #ff2d55;
  --green: #00c853;
  --orange: #ff6d00;
  --border: 4px solid var(--black);
  --shadow: 8px 8px 0 var(--black);
  --shadow-sm: 4px 4px 0 var(--black);
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

html {
  font-size: 16px;
}

body {
  font-family: var(--font-display);
  background: var(--white);
  color: var(--black);
  min-height: 100vh;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 215, 0, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 102, 255, 0.1) 0%, transparent 50%);
}

#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* ─── HEADER ─── */
.header {
  text-align: center;
  margin-bottom: 2.5rem;
  padding: 1.2rem 1rem;
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
}

.header h1 {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--black);
  line-height: 1;
}

.subtitle {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-top: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  opacity: 0.6;
  color: var(--black);
}

/* ─── PAGES ─── */
.page {
  display: none;
}

.page.active {
  display: block;
}

/* ─── CARDS ─── */
.card {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.8rem;
  margin-bottom: 1.8rem;
  position: relative;
}

.card h2 {
  font-size: 1.6rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.card p {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 1.2rem;
  line-height: 1.5;
}

/* ─── FORMS ─── */
label {
  display: block;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 0.3rem;
  letter-spacing: 0.05em;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: 0.7rem 0.8rem;
  margin-bottom: 1rem;
  background: var(--white);
  border: 3px solid var(--black);
  outline: none;
  transition: box-shadow 0.15s;
}

input[type="text"]:focus,
input[type="password"]:focus {
  box-shadow: 4px 4px 0 var(--blue);
}

/* ─── BUTTONS ─── */
button {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 3px solid var(--black);
  padding: 0.7rem 1.4rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.08s linear;
  position: relative;
}

button:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

button:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--black);
}

button:disabled {
  opacity: 0.5;
  pointer-events: none;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
}

.btn-secondary {
  background: var(--black);
  color: var(--white);
}

.btn-small {
  font-size: 0.75rem;
  padding: 0.5rem 0.9rem;
  background: var(--white);
  color: var(--black);
}

/* ─── JOIN ROW ─── */
.join-row {
  display: flex;
  gap: 0.6rem;
  align-items: flex-end;
}

.join-row input {
  margin-bottom: 0;
  flex: 1;
}

/* ─── RESULT BOX ─── */
.result-box {
  margin-top: 1rem;
  padding: 1rem;
  border: 3px solid var(--black);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.result-box.hidden {
  display: none;
}

.link-box {
  background: var(--yellow);
  padding: 0.6rem 0.8rem;
  margin: 0.6rem 0;
  border: 2px solid var(--black);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  word-break: break-all;
}

/* ─── GALLERY ─── */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.2rem;
  margin-top: 1.5rem;
}

.photo-card {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.1s;
}

.photo-card {
  position: relative;
}

.photo-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0 var(--black);
}

.btn-delete {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  z-index: 2;
  width: 32px;
  height: 32px;
  padding: 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  background: var(--pink);
  color: var(--white);
  border: 3px solid var(--black);
  box-shadow: 3px 3px 0 var(--black);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.08s linear;
}

.btn-delete:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--black);
}

.btn-delete:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 var(--black);
}

.photo-card img,
.photo-card video {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  border-bottom: 3px solid var(--black);
  background: #000;
}

.video-badge {
  background: var(--blue) !important;
}

.photo-info {
  padding: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.photo-date {
  color: #888;
}

.photo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.tag {
  background: var(--pink);
  color: var(--white);
  font-weight: 700;
  font-size: 0.65rem;
  padding: 0.15rem 0.5rem;
  border: 2px solid var(--black);
  text-transform: uppercase;
}

/* ─── BOOK HEADER ─── */
.book-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 4px solid var(--black);
}

.book-header h2 {
  font-size: 1.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.book-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ─── UPLOAD ─── */
.dropzone {
  border: 4px dashed var(--black);
  padding: 2.5rem 1rem;
  text-align: center;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 1rem;
  transition: all 0.15s;
  background: var(--white);
}

.dropzone:hover {
  background: #e8f0ff;
}

#file-preview {
  margin-bottom: 1rem;
}

#file-preview img,
#file-preview video {
  max-width: 100%;
  max-height: 250px;
  border: 3px solid var(--black);
  display: block;
  margin-bottom: 0.4rem;
}

.preview-media {
  background: #000;
}

#file-preview p {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #666;
}

.checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  margin-top: 0.3rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: none;
  font-weight: 400;
  cursor: pointer;
  padding: 0.3rem 0.6rem;
  border: 2px solid var(--black);
  transition: all 0.1s;
}

.checkbox-label:hover {
  background: var(--yellow);
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--blue);
  cursor: pointer;
}

/* ─── ADMIN ─── */
.hidden {
  display: none !important;
}

hr {
  border: none;
  border-top: 3px solid var(--black);
  margin: 1.2rem 0;
}

.small {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.muted {
  opacity: 0.6;
}

.error {
  color: var(--pink);
  font-weight: 700;
}

/* ─── STATS / PIE ─── */
.stats-section {
  margin-bottom: 2rem;
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.stats-section h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stats-row {
  display: flex;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
}

.pie-chart {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 3px solid var(--black);
  flex-shrink: 0;
}

.pie-legend {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
  min-width: 120px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--black);
  flex-shrink: 0;
}

.legend-pct {
  font-weight: 700;
  margin-left: auto;
}

.legend-count {
  color: #666;
  font-size: 0.7rem;
}

.stats-section.empty {
  display: none;
}

/* ─── UPLOAD PROGRESS ─── */
.upload-progress {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.progress-track {
  flex: 1;
  height: 18px;
  border: 3px solid var(--black);
  background: var(--white);
  box-shadow: 3px 3px 0 var(--black);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--blue);
  transition: width 0.3s ease;
}

.progress-fill.indeterminate {
  width: 30%;
  animation: progress-pulse 1.2s ease-in-out infinite;
}

@keyframes progress-pulse {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}

#progress-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  white-space: nowrap;
  min-width: 60px;
}

/* ─── EMPTY STATE ─── */
.empty-state {
  text-align: center;
  padding: 3rem;
  border: var(--border);
  box-shadow: var(--shadow-sm);
  font-family: var(--font-mono);
  font-size: 1rem;
  background: var(--white);
}

/* ─── TOAST ─── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.8rem 1.5rem;
  border: 3px solid var(--black);
  box-shadow: var(--shadow);
  z-index: 999;
  transition: transform 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.hidden {
  display: none;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 640px) {
  .header h1 { font-size: 1.8rem; }
  .join-row { flex-direction: column; }
  .book-header { flex-direction: column; align-items: flex-start; gap: 0.8rem; }
  .gallery { grid-template-columns: 1fr 1fr; }
  #app { padding: 1rem; }
}

@media (max-width: 400px) {
  .gallery { grid-template-columns: 1fr; }
}