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

[hidden] {
  display: none !important;
}

:root {
  --bg: #F9F9F9;
  --bg-card: #FFFFFF;
  --bg-secondary: #F3F4F6;
  --text: #111111;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  --accent: #4361ee;
  --accent-hover: #3a56d4;
  --accent-subtle: #EEF1FD;
  --error: #ef4444;
  --success: #22c55e;
  --success-hover: #16a34a;
  --radius: 10px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.06);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --topbar-bg: rgba(249, 249, 249, 0.82);

  /* Pastel tag colors */
  --tag-blue-bg: #EFF6FF;
  --tag-blue-text: #1E40AF;
  --tag-green-bg: #F0FDF4;
  --tag-green-text: #166534;
  --tag-yellow-bg: #FFFBEB;
  --tag-yellow-text: #92400E;
  --tag-red-bg: #FEF2F2;
  --tag-red-text: #991B1B;
}

[data-theme="dark"] {
  --bg: #0f0f0f;
  --bg-card: #1a1a1a;
  --bg-secondary: #161616;
  --text: #ececec;
  --text-secondary: #9CA3AF;
  --border: #2a2a2a;
  --accent-subtle: #1e2740;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.35);
  --topbar-bg: rgba(15, 15, 15, 0.85);

  --tag-blue-bg: #1E293B;
  --tag-blue-text: #93C5FD;
  --tag-green-bg: #052E16;
  --tag-green-text: #86EFAC;
  --tag-yellow-bg: #2D2305;
  --tag-yellow-text: #FCD34D;
  --tag-red-bg: #2D1515;
  --tag-red-text: #FCA5A5;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Layout ── */
.page {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  position: relative;
}

#screen-main {
  flex-direction: column;
  align-items: stretch;
}

.main-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

/* ── Card ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  max-width: 500px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.card-icon {
  font-size: 56px;
  margin-bottom: 24px;
}

.card h1 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.04em;
  line-height: 1.15;
}

.card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.03em;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 36px;
  font-weight: 400;
}

/* ── Input ── */
.input-group {
  display: flex;
  gap: 12px;
}

input[type="text"],
input[type="password"],
textarea {
  flex: 1;
  padding: 14px 18px;
  font-size: 1rem;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

/* ── Buttons ── */
.btn-primary {
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font);
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(67, 97, 238, 0.25);
}

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

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ── Error ── */
.error-text {
  color: var(--error);
  font-size: 0.9rem;
  margin-top: 16px;
  font-weight: 500;
}

/* ── Topbar ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: var(--topbar-bg);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-title {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.topbar-user {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

.btn-theme-toggle {
  padding: 8px 12px;
  font-size: 1.1rem;
  line-height: 1;
  font-family: var(--font);
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.btn-theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.btn-theme-float {
  position: absolute;
  top: 24px;
  right: 24px;
}

/* ── Editor Layout ── */
.editor-layout {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}

.editor-panel {
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
}

.editor-panel h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.03em;
}

.editor-panel .subtitle {
  margin-bottom: 20px;
}

.editor-panel textarea {
  min-height: 80px;
  max-height: 160px;
  resize: vertical;
  font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.editor-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.btn-submit {
  background: var(--success);
}

.btn-submit:hover {
  background: var(--success-hover);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.25);
}

.submit-status {
  font-size: 0.9rem;
  margin-top: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.submit-status.success {
  color: var(--success);
}

.submit-status.error {
  color: var(--error);
}

/* ── Preview Panel ── */
.preview-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.preview-header {
  padding: 14px 32px;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border);
}

.preview-container {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 500px;
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
  height: 708px;
}

.preview-container iframe {
  display: block;
  width: 800px;
  height: 1132px;
  transform: scale(0.625);
  transform-origin: 0 0;
  position: absolute;
  top: 0;
  left: 0;
  border: none;
}

.preview-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
}

/* ── Admin ── */
.admin-status {
  margin-bottom: 28px;
  font-size: 1rem;
  font-weight: 600;
}

.admin-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}

.btn-phase {
  padding: 18px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.btn-phase:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn-phase-active {
  border-color: var(--accent);
  background: var(--accent-subtle);
  color: var(--accent);
  font-weight: 700;
}

.btn-phase small {
  font-weight: 400;
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.admin-log {
  text-align: left;
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-height: 150px;
  overflow-y: auto;
}

.admin-log div {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.btn-danger {
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  color: #fff;
  background: var(--error);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

/* ── Gallery ── */
.gallery-screen {
  padding: 36px;
  flex: 1;
}

.gallery-header {
  text-align: center;
  margin-bottom: 36px;
}

.gallery-header h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.03em;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 280px);
  justify-content: center;
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto;
}

.gallery-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.gallery-item-header {
  padding: 14px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.iframe-scale-wrap {
  position: relative;
  overflow: hidden;
  height: 396px;
}

.gallery-item iframe {
  width: 800px;
  height: 1132px;
  transform: scale(0.35);
  transform-origin: 0 0;
  position: absolute;
  top: 0;
  left: 0;
  border: none;
  display: block;
  pointer-events: none;
}

.gallery-item-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent), var(--shadow-lg);
  transform: translateY(-4px);
}

.gallery-item:not(.gallery-item-selected) {
  cursor: pointer;
}

.vote-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--tag-blue-bg);
  color: var(--tag-blue-text);
  border-radius: 999px;
}

/* ── Topbar User Area ── */
.topbar-user-area {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.btn-change-user {
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font);
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.btn-change-user:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-subtle);
}

/* ── Inline Username Edit ── */
.username-edit-input {
  padding: 6px 12px;
  font-size: 0.9rem;
  font-family: var(--font);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  outline: none;
  width: 150px;
}

.btn-username-save {
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font);
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s;
}

.btn-username-save:hover {
  background: var(--accent-hover);
}

.btn-username-cancel {
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: var(--font);
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s;
}

.btn-username-cancel:hover {
  border-color: var(--text-secondary);
}

.username-edit-error {
  color: var(--error);
  font-size: 0.8rem;
  font-weight: 500;
  position: absolute;
  top: 100%;
  left: 0;
  white-space: nowrap;
  margin-top: 4px;
}

.username-edit-info {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 500;
  position: absolute;
  top: 100%;
  left: 0;
  white-space: nowrap;
  margin-top: 4px;
}

/* ── Responsive ── */
@media (max-width: 500px) {
  .card {
    padding: 40px 24px;
  }

  .card h1 {
    font-size: 1.75rem;
  }

  .input-group {
    flex-direction: column;
  }

  .editor-panel {
    padding: 20px;
  }

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