:root {
  --bg:         #080b18;
  --sidebar:    #0e1225;
  --card:       #141828;
  --card-hover: #1a2035;
  --border:     #1e2540;
  --border-2:   #2a3360;
  --accent:     #4f7ef8;
  --accent-h:   #3d68e0;
  --accent-glow:rgba(79,126,248,0.25);
  --text:       #e8eaf6;
  --text-2:     #6b7299;
  --text-3:     #3d4568;
  --success:    #34d399;
  --warning:    #fbbf24;
  --danger:     #f87171;
  --purple:     #a78bfa;
  --header-h:   60px;
  --radius:     14px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overscroll-behavior: none;
}

/* ── Mobile Header ───────────────────────────────────────── */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--sidebar);
  border-bottom: 1px solid var(--border);
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 300;
  gap: 12px;
}

.hamburger {
  width: 40px; height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 4px;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-title {
  font-size: 16px;
  font-weight: 700;
  flex: 1;
  text-align: center;
}

.mobile-add-btn {
  width: 36px; height: 36px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 300;
  text-decoration: none;
  flex-shrink: 0;
  line-height: 1;
}

/* ── Sidebar Overlay ─────────────────────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 150;
  backdrop-filter: blur(2px);
}

.sidebar-overlay.show { display: block; }

/* ── Layout ──────────────────────────────────────────────── */
.layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  width: 270px;
  min-width: 270px;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}

.sidebar-header {
  padding: 20px 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.logo {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.3px;
}

.pages-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 8px;
}

.page-tile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 4px;
  border: 1px solid transparent;
}

.page-tile:hover {
  background: var(--card-hover);
  border-color: var(--border);
}

.page-tile.active {
  background: linear-gradient(135deg, #1a3a8f, #1e2a6e);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.page-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  border: 2px solid var(--border);
}

.page-tile.active .page-avatar {
  border-color: var(--accent);
  background: rgba(79,126,248,0.15);
}

.page-tile-name {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.empty-state {
  color: var(--text-2);
  text-align: center;
  padding: 40px 16px;
  font-size: 13px;
  line-height: 2;
}

/* ── Main Content ────────────────────────────────────────── */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 32px 36px;
  max-width: 100%;
}

.no-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 70vh;
  gap: 16px;
  color: var(--text-2);
  text-align: center;
}

.no-page-icon { font-size: 64px; }
.no-page p { font-size: 15px; line-height: 1.8; }

/* ── Page Header ─────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
}

.page-header-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.page-header-avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1a3a8f, #2a1a8f);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  box-shadow: 0 0 16px var(--accent-glow);
}

.page-header h1 {
  font-size: 20px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-actions { display: flex; gap: 8px; flex-shrink: 0; }

/* ── Stats Bar ───────────────────────────────────────────── */
.stats-bar {
  display: flex;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 24px;
  margin-bottom: 20px;
  gap: 0;
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-size: 18px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.stat-label {
  font-size: 10px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
  margin: 0 12px;
}

/* ── Section Labels ──────────────────────────────────────── */
.section-label {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--text-3);
  margin-bottom: 12px;
}

/* ── Submit Section ──────────────────────────────────────── */
.submit-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.submit-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.url-input-wrap {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 0 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.url-input-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.url-icon {
  font-size: 16px;
  margin-right: 10px;
  flex-shrink: 0;
}

.url-input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 14px 0;
  color: var(--text);
  font-size: 14px;
  outline: none;
  width: 100%;
}

.url-input::placeholder { color: var(--text-2); }

.btn-submit-main {
  background: linear-gradient(135deg, var(--accent), #7c5ef8);
  color: #fff;
  border: none;
  padding: 15px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.3px;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-submit-main:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px var(--accent-glow);
}

.btn-submit-main:active { transform: translateY(0); }
.btn-submit-main:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.submit-status {
  margin-top: 10px;
  font-size: 13px;
  min-height: 16px;
  font-weight: 500;
}

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

/* ── Queue ───────────────────────────────────────────────── */
.queue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.queue-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.empty-queue {
  color: var(--text-2);
  text-align: center;
  padding: 48px 24px;
  background: var(--card);
  border: 1px dashed var(--border-2);
  border-radius: var(--radius);
}

.empty-queue-icon { font-size: 40px; margin-bottom: 12px; }
.empty-queue p { font-size: 14px; line-height: 1.8; }

.queue-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.queue-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
}

.queue-item.status-downloading::before { background: var(--warning); }
.queue-item.status-queued::before      { background: var(--accent); }
.queue-item.status-uploading::before   { background: var(--purple); }
.queue-item.status-uploaded::before    { background: var(--success); }
.queue-item.status-failed::before      { background: var(--danger); }

.queue-item:hover {
  border-color: var(--border-2);
  transform: translateX(2px);
}

.queue-item-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.queue-item-body { flex: 1; min-width: 0; }

.queue-item-title {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 3px;
}

.queue-item-url {
  font-size: 11px;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 5px;
}

.queue-item-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.queue-item-meta {
  font-size: 11px;
  color: var(--text-3);
}

.queue-item-error {
  font-size: 11px;
  color: var(--danger);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Status badges */
.badge {
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.3px;
  flex-shrink: 0;
}

.badge-downloading { background: rgba(251,191,36,0.15);  color: var(--warning); border: 1px solid rgba(251,191,36,0.3); }
.badge-queued      { background: rgba(79,126,248,0.15);  color: var(--accent);  border: 1px solid rgba(79,126,248,0.3); }
.badge-uploading   { background: rgba(167,139,250,0.15); color: var(--purple);  border: 1px solid rgba(167,139,250,0.3); }
.badge-uploaded    { background: rgba(52,211,153,0.15);  color: var(--success); border: 1px solid rgba(52,211,153,0.3); }
.badge-failed      { background: rgba(248,113,113,0.15); color: var(--danger);  border: 1px solid rgba(248,113,113,0.3); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 11px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-block;
}

.btn-primary:hover { background: var(--accent-h); }

.btn-add {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 7px 13px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s;
}

.btn-add:hover { background: var(--accent-h); }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-2);
  padding: 11px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-secondary:hover { background: var(--card-hover); }

.btn-settings {
  width: 38px; height: 38px;
  background: var(--card);
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.btn-settings:hover { background: var(--card-hover); color: var(--text); border-color: var(--border-2); }

.btn-danger-icon {
  width: 38px; height: 38px;
  background: rgba(248,113,113,0.1);
  color: var(--danger);
  border: 1px solid rgba(248,113,113,0.3);
  border-radius: 10px;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.btn-danger-icon:hover { background: var(--danger); color: #fff; }

.btn-delete {
  background: transparent;
  border: none;
  color: var(--text-3);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  font-size: 15px;
  transition: color 0.2s;
  flex-shrink: 0;
}

.btn-delete:hover { color: var(--danger); }

.btn-block { width: 100%; text-align: center; margin-top: 10px; }

/* ── Modal ───────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 400;
  backdrop-filter: blur(4px);
}

.modal {
  background: var(--card);
  border: 1px solid var(--border-2);
  border-radius: 20px 20px 0 0;
  padding: 24px;
  width: 100%;
  max-width: 560px;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.modal-header h3 { font-size: 18px; font-weight: 800; }

.modal-close {
  width: 32px; height: 32px;
  background: var(--card-hover);
  border: none;
  border-radius: 50%;
  color: var(--text-2);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.modal-close:hover { color: var(--text); background: var(--border); }

.modal-hint {
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 16px;
  line-height: 1.5;
}

.modal textarea {
  width: 100%;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  resize: none;
  outline: none;
  margin-bottom: 16px;
  line-height: 1.6;
}

.modal textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ── Auth / Select Pages ─────────────────────────────────── */
.centered-page {
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  overflow: auto;
  padding: 24px;
}

.auth-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  width: 540px;
  max-width: 100%;
}

.auth-header h2 { font-size: 22px; font-weight: 800; margin-bottom: 6px; }

.auth-header p {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 24px;
  line-height: 1.6;
}

.page-select-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
}

.page-check-row {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  margin-bottom: 14px;
}

.page-check-row input[type="checkbox"] {
  width: 18px; height: 18px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.page-check-row strong { display: block; font-size: 15px; font-weight: 700; }
.page-check-row small  { color: var(--text-2); font-size: 12px; }

.hashtag-row label {
  display: block;
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 6px;
  font-weight: 600;
}

.hashtag-row input {
  width: 100%;
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}

.hashtag-row input:focus { border-color: var(--accent); }

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 4px; }

/* ── Mobile (≤ 768px) ────────────────────────────────────── */
@media (max-width: 768px) {
  .mobile-header { display: flex; }

  .layout { padding-top: var(--header-h); }

  .sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    bottom: 0;
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 280px;
    min-width: unset;
    height: auto;
  }

  .sidebar.open { transform: translateX(0); }

  .sidebar .sidebar-header { display: none; }

  .main-content {
    padding: 20px 16px;
    padding-bottom: 32px;
  }

  .no-page { height: 60vh; }
  .no-page-icon { font-size: 48px; }

  .page-header { margin-bottom: 16px; }
  .page-header h1 { font-size: 17px; }

  .page-header-avatar { width: 40px; height: 40px; font-size: 18px; }

  .stats-bar {
    padding: 14px 16px;
    margin-bottom: 16px;
    border-radius: 12px;
  }

  .stat-value { font-size: 14px; }
  .stat-label { font-size: 9px; }
  .stat-divider { margin: 0 8px; height: 28px; }

  .submit-section {
    padding: 16px;
    margin-bottom: 16px;
    border-radius: 12px;
  }

  .url-input { font-size: 15px; padding: 15px 0; }
  .url-input-wrap { padding: 0 14px; }

  .btn-submit-main {
    padding: 16px;
    font-size: 16px;
    border-radius: 12px;
  }

  .queue-item { padding: 14px; border-radius: 12px; }
  .queue-item-title { font-size: 13px; }

  .modal {
    border-radius: 20px 20px 0 0;
    padding: 20px 20px 36px;
    max-width: 100%;
  }

  .modal-actions { flex-direction: column-reverse; }
  .modal-actions button { width: 100%; padding: 14px; }

  .btn-settings, .btn-danger-icon { width: 40px; height: 40px; }
}

/* ── Small phones (≤ 390px) ──────────────────────────────── */
@media (max-width: 390px) {
  .stat-value { font-size: 12px; }
  .stat-divider { margin: 0 6px; }
  .main-content { padding: 14px 12px; }
}