:root {
  --bg: #0f172a;
  --bg2: #1e293b;
  --panel: #111827;
  --panel2: #1f2937;
  --card: #334155;
  --text: #ffffff;
  --muted: #cbd5e1;
  --accent: #2563eb;
  --accent2: #0ea5e9;
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #dc2626;
  --soft: #475569;
  --border: rgba(255,255,255,0.08);
  --input-bg: #f8fafc;
  --input-text: #111827;
  --home-bg:
    radial-gradient(circle at top right, #dbeafe, transparent 25%),
    radial-gradient(circle at bottom left, #bfdbfe, transparent 25%),
    linear-gradient(135deg, #eff6ff, #e0f2fe);
  --home-text: #0f172a;
}

body[data-theme="light"] {
  --bg: #f8fafc;
  --bg2: #e2e8f0;
  --panel: #ffffff;
  --panel2: #f1f5f9;
  --card: #cbd5e1;
  --text: #0f172a;
  --muted: #475569;
  --accent: #2563eb;
  --accent2: #0ea5e9;
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #dc2626;
  --soft: #94a3b8;
  --border: rgba(15,23,42,0.08);
  --input-bg: #ffffff;
  --input-text: #111827;
  --home-bg:
    radial-gradient(circle at top right, #e0f2fe, transparent 25%),
    radial-gradient(circle at bottom left, #dbeafe, transparent 25%),
    linear-gradient(135deg, #ffffff, #f1f5f9);
  --home-text: #0f172a;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg), var(--bg2));
  color: var(--text);
}

.app {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  padding: 12px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.brand-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.brand {
  font-size: 30px;
  font-weight: 800;
  color: #38bdf8;
}

.tagline {
  font-size: 13px;
  color: var(--muted);
}

.top-meta {
  text-align: right;
}

.time,
.top-info {
  font-size: 13px;
  color: var(--muted);
}

.toolbar {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto auto 1fr auto auto auto auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.toolbar-small {
  grid-template-columns: repeat(7, auto);
  margin-bottom: 0;
}

button,
select {
  border: none;
  background: var(--accent);
  color: white;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  transition: 0.18s ease;
  white-space: nowrap;
}

select {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border);
}

button:hover,
select:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.secondary { background: var(--accent2); }
.success { background: var(--success); }
.warning { background: var(--warning); color: #111827; }
.danger { background: var(--danger); }
.soft { background: var(--soft); }

#addressBar {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: none;
  outline: none;
  font-size: 15px;
  background: var(--input-bg);
  color: var(--input-text);
}

.tabs-bar {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  overflow-x: auto;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}

.tab {
  min-width: 180px;
  max-width: 250px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--panel2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: pointer;
  flex-shrink: 0;
}

.tab.active {
  background: var(--accent);
  color: white;
}

.tab-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
}

.tab-close {
  background: transparent;
  padding: 0;
  font-size: 18px;
  min-width: auto;
}

.main {
  flex: 1;
  min-height: 0;
  display: flex;
}

.sidebar {
  width: 290px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 14px;
  overflow: auto;
}

.panel {
  margin-bottom: 20px;
}

.panel-title {
  margin-bottom: 10px;
  color: #93c5fd;
  font-weight: 700;
  font-size: 15px;
}

.panel-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.panel-btn,
.list-item,
.info-box {
  width: 100%;
  text-align: left;
  background: var(--panel2);
  border: 1px solid var(--border);
  padding: 10px;
  border-radius: 10px;
  color: var(--text);
  font-size: 13px;
  word-break: break-word;
}

.panel-btn:hover,
.list-item:hover {
  background: var(--card);
}

.info-box {
  cursor: default;
}

.bookmark-row {
  display: flex;
  gap: 6px;
}

.bookmark-row .list-item {
  flex: 1;
}

.bookmark-delete {
  width: 56px;
  text-align: center;
  background: var(--danger);
  color: white;
}

.viewer-area {
  flex: 1;
  min-width: 0;
  position: relative;
  background: white;
}

.browser-view {
  width: 100%;
  height: 100%;
  border: none;
  display: none;
  background: white;
}

.browser-view.active {
  display: block;
}

.home {
  width: 100%;
  height: 100%;
  display: none;
  overflow: auto;
  padding: 40px 20px;
  background: var(--home-bg);
  color: var(--home-text);
}

.home.active {
  display: block;
}

.home-center {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.home-logo {
  font-size: 60px;
  font-weight: 800;
  color: #1d4ed8;
  margin-bottom: 10px;
}

.home-text {
  font-size: 18px;
  color: #475569;
  margin-bottom: 28px;
}

.home-search {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 30px;
}

.home-search input {
  width: min(700px, 100%);
  padding: 14px 16px;
  font-size: 16px;
  border: none;
  outline: none;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 16px;
}

.home-card {
  background: rgba(255,255,255,0.88);
  border-radius: 18px;
  padding: 22px 16px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  cursor: pointer;
  transition: 0.18s ease;
}

.home-card:hover {
  transform: translateY(-3px);
}

.home-card h3 {
  margin-bottom: 8px;
  color: #0f172a;
}

.home-card p {
  font-size: 14px;
  color: #475569;
}

@media (max-width: 1250px) {
  .sidebar {
    display: none;
  }
}

@media (max-width: 980px) {
  .toolbar {
    grid-template-columns: repeat(3, 1fr);
  }

  #addressBar {
    grid-column: 1 / -1;
  }

  .toolbar-small {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 700px) {
  .brand {
    font-size: 24px;
  }

  .toolbar,
  .toolbar-small {
    grid-template-columns: repeat(2, 1fr);
  }

  select,
  #addressBar {
    grid-column: 1 / -1;
  }
}