:root {
  --primary: #4f46e5;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;

  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

html[data-theme="dark"] {
  --bg: #0b1220;
  --surface: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: #1f2937;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(130deg, var(--bg), color-mix(in srgb, var(--bg) 84%, var(--accent)));
  color: var(--text);
  font-family: Inter, Segoe UI, Arial, sans-serif;
  min-height: 100vh;
}

.auth-page {
  display: grid;
  place-items: center;
}

.auth-container {
  width: min(92vw, 420px);
}

.theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  backdrop-filter: blur(8px);
}

.topbar h1 {
  margin: 0;
  font-size: 1.05rem;
}

.topbar-right {
  display: flex;
  gap: 8px;
}

.container {
  width: min(1200px, 94vw);
  margin: 20px auto 40px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.auth-card h1 {
  margin-top: 0;
  margin-bottom: 8px;
}

.muted {
  color: var(--muted);
}

.error-message {
  min-height: 20px;
  color: var(--danger);
}

.form {
  display: grid;
  gap: 12px;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 95%, transparent);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

input:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 26%, transparent);
}

.btn {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 14px;
  cursor: pointer;
  transition: transform 120ms ease, opacity 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 70%, var(--accent)));
  color: #fff;
}

.btn-secondary {
  background: color-mix(in srgb, var(--surface) 88%, var(--border));
  color: var(--text);
  border-color: var(--border);
}

.btn-danger {
  background: color-mix(in srgb, var(--danger) 82%, black);
  color: #fff;
}

.filters {
  display: grid;
  grid-template-columns: 1fr 180px 120px;
  gap: 10px;
  margin-bottom: 18px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
}

.image-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.image-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  cursor: zoom-in;
}

.image-card-body {
  padding: 12px;
  display: grid;
  gap: 6px;
}

.image-link {
  font-size: 0.88rem;
  color: var(--accent);
  cursor: pointer;
  word-break: break-all;
}

.copy-feedback {
  color: var(--success);
  font-size: 0.82rem;
}

.card-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.pagination {
  margin-top: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  margin: 24px 0;
}

.upload-card {
  margin-bottom: 14px;
}

.dropzone {
  border: 2px dashed color-mix(in srgb, var(--primary) 40%, var(--border));
  border-radius: 16px;
  padding: 18px;
  text-align: center;
  margin-bottom: 12px;
}

.dropzone.dragover {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
}

.preview {
  width: min(100%, 420px);
  border-radius: 14px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

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

.progress {
  width: 100%;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 80%, var(--border));
  overflow: hidden;
  height: 10px;
}

#progressBar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 120ms linear;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  display: grid;
  place-items: center;
  padding: 30px;
}

.lightbox img {
  max-width: min(100vw - 80px, 1200px);
  max-height: calc(100vh - 80px);
  border-radius: 10px;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 50;
}

.modal-card {
  width: min(92vw, 420px);
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 16px;
  display: grid;
  gap: 10px;
}

.modal-card h3 {
  margin: 0;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.hidden {
  display: none !important;
}

@media (max-width: 768px) {
  .filters {
    grid-template-columns: 1fr;
  }

  .field-row {
    flex-direction: column;
    align-items: stretch;
  }
}