/* css/style.css */

/* CSS Variables */
:root {
  --bg: #f8f9fa;
  --bg-white: #ffffff;
  --text: #202124;
  --text-secondary: #5f6368;
  --border: #dadce0;
  --hover-bg: #f1f3f4;
  --active-bg: #e8eaed;
  --accent: #1a73e8;
  --bar-height: 44px;
  --sidebar-width: 200px;
  --sidebar-collapsed: 48px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 50%;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Browser Container */
#browser {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--bg-white);
}

/* Address Bar - Always at top */
#address-bar {
  display: flex;
  align-items: center;
  height: var(--bar-height);
  padding: 0 8px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  gap: 4px;
  transition: padding var(--transition-normal);
  z-index: 10;
}

#address-bar button {
  background: transparent;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 16px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition-fast), color var(--transition-fast);
}

#address-bar button:hover {
  background: var(--hover-bg);
  color: var(--text);
}

#url-input {
  flex: 1;
  height: 30px;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  padding: 0 14px;
  font-size: 14px;
  background: var(--bg-white);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-width: 0;
}

#url-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

#url-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

#go-btn {
  width: 32px;
  height: 32px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

#go-btn:hover {
  opacity: 0.9;
}

/* Zoom Controls */
#zoom-controls {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 4px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
}

#zoom-controls button {
  width: 26px;
  height: 26px;
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), color var(--transition-fast);
}

#zoom-controls button:hover {
  background: var(--hover-bg);
  color: var(--text);
}

#zoom-level {
  font-size: 12px;
  min-width: 40px;
  text-align: center;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Layout Toggle Button */
#layout-toggle-btn {
  margin-left: 4px;
}

/* Main Area - Tab bar + Content */
#main-area {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ==================== TOP LAYOUT ==================== */
.layout-top #main-area {
  flex-direction: column;
}

.layout-top #tab-bar {
  display: flex;
  align-items: center;
  height: 38px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0 4px;
  gap: 2px;
  flex-shrink: 0;
}

.layout-top #tabs-container {
  display: flex;
  flex: 1;
  overflow-x: auto;
  gap: 2px;
  padding: 4px 0;
  scrollbar-width: none;
}

.layout-top #tabs-container::-webkit-scrollbar {
  display: none;
}

.layout-top #new-tab-btn {
  width: 30px;
  height: 30px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 18px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.layout-top #new-tab-btn:hover {
  background: var(--hover-bg);
  color: var(--text);
}

.layout-top #collapse-btn {
  display: none;
}

.layout-top #content-area {
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* ==================== LEFT LAYOUT ==================== */
.layout-left #main-area {
  flex-direction: row;
}

.layout-left #tab-bar {
  display: flex;
  flex-direction: column;
  width: var(--sidebar-width);
  background: var(--bg-white);
  border-right: 1px solid var(--border);
  padding: 4px;
  flex-shrink: 0;
  transition: width var(--transition-normal);
  overflow: hidden;
}

.layout-left.collapsed #tab-bar {
  width: var(--sidebar-collapsed);
}

.layout-left #tabs-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  gap: 2px;
  scrollbar-width: none;
}

.layout-left #tabs-container::-webkit-scrollbar {
  display: none;
}

.layout-left #new-tab-btn {
  width: 100%;
  height: 32px;
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 18px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.layout-left #new-tab-btn:hover {
  background: var(--hover-bg);
  color: var(--text);
  border-color: var(--text-secondary);
}

.layout-left.collapsed #new-tab-btn {
  font-size: 16px;
}

/* Collapse Button */
#collapse-btn {
  width: 100%;
  height: 28px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: auto;
  padding-top: 4px;
  border-top: 1px solid var(--border);
  transition: background var(--transition-fast), color var(--transition-fast);
}

#collapse-btn:hover {
  background: var(--hover-bg);
  color: var(--text);
}

.layout-left.collapsed #collapse-btn {
  font-size: 16px;
}

.layout-left #content-area {
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* ==================== TAB STYLES ==================== */
.tab {
  display: flex;
  align-items: center;
  padding: 6px 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  height: 32px;
  flex-shrink: 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  position: relative;
  min-width: 0;
}

.tab:hover {
  background: var(--hover-bg);
}

/* Top layout tabs */
.layout-top .tab {
  min-width: 80px;
  max-width: 180px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.layout-top .tab.active {
  background: var(--bg-white);
  border-color: var(--border);
  border-bottom-color: var(--bg-white);
  margin-bottom: -1px;
  z-index: 1;
}

/* Left layout tabs */
.layout-left .tab {
  width: 100%;
  border-radius: var(--radius-sm);
}

.layout-left .tab.active {
  background: var(--active-bg);
  border-color: var(--border);
}

/* Favicon styles (both layouts) */
.tab .tab-favicon {
  width: 16px;
  height: 16px;
  margin-right: 8px;
  flex-shrink: 0;
  border-radius: 2px;
  object-fit: contain;
}

.tab .tab-favicon-fallback {
  width: 16px;
  height: 16px;
  margin-right: 8px;
  flex-shrink: 0;
  border-radius: 2px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* Collapsed state (left layout only) */
.layout-left.collapsed .tab {
  justify-content: center;
  padding: 8px;
}

.layout-left.collapsed .tab .tab-title,
.layout-left.collapsed .tab .tab-close {
  display: none;
}

.layout-left.collapsed .tab .tab-favicon,
.layout-left.collapsed .tab .tab-favicon-fallback {
  margin-right: 0;
}

.tab-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  color: var(--text);
  min-width: 0;
}

.tab-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: 4px;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.tab:hover .tab-close {
  opacity: 1;
}

.tab-close:hover {
  background: var(--active-bg);
  color: var(--text);
}

/* Content Area */
#content-area {
  flex: 1;
  position: relative;
  overflow: hidden;
}

#content-area iframe {
  position: absolute;
  top: 0;
  left: 0;
  border: none;
  background: white;
}

/* Settings Button */
#settings-btn {
  margin-left: 4px;
  font-size: 18px;
}

/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 1;
  transition: opacity var(--transition-normal);
}

.modal.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
  width: 90%;
  max-width: 480px;
  max-height: 80vh;
  overflow-y: auto;
  transform: scale(1);
  transition: transform var(--transition-normal);
}

.modal.hidden .modal-content {
  transform: scale(0.95);
}

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

.modal-header h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.modal-close {
  background: transparent;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 20px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), color var(--transition-fast);
}

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

.modal-body {
  padding: 20px;
}

.settings-section {
  margin-bottom: 24px;
}

.settings-section:last-child {
  margin-bottom: 0;
}

.settings-section h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.setting-item {
  margin-bottom: 16px;
}

.setting-item:last-child {
  margin-bottom: 0;
}

.setting-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
}

.setting-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.setting-hint {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
  margin-left: 24px;
}

.setting-input {
  width: 100%;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  font-size: 14px;
  background: var(--bg-white);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  margin-top: 8px;
}

.setting-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.btn-secondary {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--hover-bg);
  border-color: var(--text-secondary);
}

#proxy-test-result.success {
  color: #34a853;
}

#proxy-test-result.error {
  color: #ea4335;
}

/* Log Output */
.log-output {
  width: 100%;
  height: 300px;
  background: #1e1e1e;
  color: #d4d4d4;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 12px;
  line-height: 1.5;
  padding: 12px;
  border-radius: var(--radius-sm);
  overflow-y: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
  border: 1px solid #333;
}

.log-output .log-info {
  color: #4fc1ff;
}

.log-output .log-warn {
  color: #cca700;
}

.log-output .log-error {
  color: #f48771;
}

.log-output .log-success {
  color: #6a9955;
}

/* Responsive */
@media (max-width: 768px) {
  :root {
    --sidebar-width: 160px;
    --sidebar-collapsed: 40px;
  }

  .tab {
    min-width: 60px;
  }
}