/* RSSPipe - Modern Minimal High-Contrast Design System (Light Mode) */

:root {
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-sidebar: #f8fafc;
  --bg-list: #ffffff;
  --bg-reader: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-card-selected: #e2e8f0;
  
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --border-dark: #cbd5e1;
  --border-focus: #0f172a;
  
  --text-main: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  
  --accent: #0f172a;
  --accent-hover: #1e293b;
  --accent-soft: rgba(15, 23, 42, 0.06);
  --tag-bg: #f1f5f9;
  --tag-text: #0f172a;
  --tag-border: #cbd5e1;
  
  --star: #d97706;
  --star-soft: #fef3c7;
  --unread-dot: #0f172a;
  --success: #15803d;
  --danger: #b91c1c;
  
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.1);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html, body, #root {
  height: 100%;
  width: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-dark);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Base App Layout */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  background: var(--bg-app);
}

/* Top Navigation Header */
.app-header {
  height: 50px;
  min-height: 50px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.85rem;
  z-index: 30;
  gap: 0.75rem;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text-main);
  user-select: none;
  cursor: pointer;
}

.logo-badge {
  background: var(--accent);
  color: #ffffff;
  font-size: 0.62rem;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.search-bar-container {
  flex: 1;
  max-width: 480px;
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  background: var(--bg-app);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.38rem 0.9rem 0.38rem 2rem;
  color: var(--text-main);
  font-size: 0.84rem;
  outline: none;
  transition: all 0.15s ease;
}

.search-input:focus {
  border-color: var(--border-focus);
  background: #ffffff;
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.search-icon {
  position: absolute;
  left: 0.7rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-shortcut-hint {
  position: absolute;
  right: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.65rem;
  padding: 1px 5px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  pointer-events: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Button & Pill styles */
.btn-icon {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.1s ease;
}

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

.btn-icon.active {
  background: var(--accent);
  color: #ffffff;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border: 1px solid var(--accent);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.38rem 0.75rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: background 0.1s ease;
  white-space: nowrap;
}

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

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border);
  font-weight: 500;
  font-size: 0.8rem;
  padding: 0.38rem 0.75rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all 0.1s ease;
  white-space: nowrap;
}

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

.view-mode-pill {
  display: flex;
  background: var(--bg-app);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--tag-border);
}

/* Mobile Dropdown Menu */
.mobile-menu-dropdown {
  position: absolute;
  top: 48px;
  right: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  width: 200px;
  padding: 0.4rem;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-menu-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.mobile-menu-item:hover {
  background: var(--bg-card-hover);
}

/* ========================================================================= */
/* 1. REEDER 4 MINIMAL 3-PANE SPLIT VIEW (DESKTOP)                           */
/* ========================================================================= */

.three-pane-container {
  display: flex;
  flex: 1;
  height: calc(100vh - 50px);
  overflow: hidden;
  background: var(--bg-app);
}

/* Sidebar (Pane 1) - Independent Scrollable */
.sidebar-pane {
  width: 240px;
  min-width: 240px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  transition: width 0.2s ease, min-width 0.2s ease;
}

.sidebar-pane.collapsed {
  width: 0;
  min-width: 0;
  border-right: none;
  overflow: hidden;
}

.sidebar-scroll-area {
  flex: 1 1 0%;
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0.75rem 0.5rem 2rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.825rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.1s ease;
}

.sidebar-nav-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

.sidebar-nav-item.active {
  background: var(--bg-card-selected);
  color: var(--text-main);
  font-weight: 600;
}

.sidebar-nav-label {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-section-header {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0.85rem 0.65rem 0.25rem 0.65rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.feed-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.65rem 0.35rem 1.4rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.79rem;
  cursor: pointer;
  transition: all 0.1s ease;
}

.feed-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

.feed-item.active {
  background: var(--bg-card-selected);
  color: var(--text-main);
  font-weight: 600;
}

.feed-title-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 10px;
  background: var(--border);
  color: var(--text-muted);
}

.badge.unread {
  background: var(--accent);
  color: #ffffff;
}

/* Article List (Pane 2) - Independent Scrollable */
.article-list-pane {
  width: 350px;
  min-width: 300px;
  max-width: 400px;
  background: var(--bg-list);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.article-list-header {
  height: 44px;
  min-height: 44px;
  padding: 0 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: var(--bg-list);
}

.article-list-scroll-area {
  flex: 1 1 0%;
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.article-item-card {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  position: relative;
  transition: background 0.1s ease;
  user-select: none;
}

.article-item-card:hover {
  background: var(--bg-card-hover);
}

.article-item-card.selected {
  background: var(--bg-card-selected);
}

.article-item-card.selected::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
}

.article-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  color: var(--text-muted);
}

.article-item-source {
  font-weight: 600;
  color: var(--text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

.article-item-title {
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-item-card.is-read .article-item-title {
  font-weight: 400;
  color: var(--text-secondary);
}

.article-item-snippet {
  font-size: 0.76rem;
  line-height: 1.4;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.unread-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--unread-dot);
  flex-shrink: 0;
}

/* Reader Canvas (Pane 3) - Independent Scrollable */
.reader-pane {
  flex: 1 1 0%;
  height: 100%;
  background: var(--bg-reader);
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
}

.reader-toolbar {
  position: sticky;
  top: 0;
  height: 46px;
  min-height: 46px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
}

/* Sliding Ball Capsule Toggle Switch */
.capsule-switch-btn {
  display: inline-flex;
  align-items: center;
  border: none;
  background: transparent;
  padding: 0;
  cursor: pointer;
  outline: none;
  user-select: none;
  margin-left: 0.5rem;
}

.capsule-switch-track {
  position: relative;
  display: flex;
  align-items: center;
  width: 86px;
  height: 26px;
  border-radius: 9999px;
  background-color: var(--bg-card-hover);
  border: 1px solid var(--border-dark);
  padding: 2px;
  transition: background-color 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.25s ease;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.capsule-switch-btn:hover .capsule-switch-track {
  border-color: var(--border-focus);
}

.capsule-switch-btn.active .capsule-switch-track {
  background-color: #0284c7;
  border-color: #0284c7;
}

.capsule-switch-btn.scraping .capsule-switch-track {
  background-color: #0369a1;
  border-color: #0369a1;
  cursor: wait;
}

.capsule-switch-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #ffffff;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.1);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              color 0.25s ease;
  z-index: 2;
}

.capsule-switch-btn.active .capsule-switch-thumb {
  transform: translateX(60px);
  color: #0284c7;
}

.capsule-switch-label {
  width: 100%;
  font-size: 0.69rem;
  font-weight: 600;
  text-align: center;
  transition: color 0.25s ease, padding 0.25s ease;
  z-index: 1;
  white-space: nowrap;
  letter-spacing: -0.01em;
}

/* When thumb is on the left, label is padded to the right */
.capsule-switch-btn:not(.active) .capsule-switch-label {
  padding-left: 17px;
  padding-right: 2px;
  color: var(--text-main);
}

/* When thumb is on the right, label is padded to the left */
.capsule-switch-btn.active .capsule-switch-label {
  padding-right: 17px;
  padding-left: 2px;
  color: #ffffff;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spin {
  animation: spin 1s linear infinite;
}

.reader-content-canvas {
  max-width: 680px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem 5rem 1.5rem;
}

.reader-source-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.reader-headline {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}

.reader-headline a {
  color: inherit;
  text-decoration: none;
}

.reader-headline a:hover {
  text-decoration: underline;
}

.reader-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  overflow-wrap: break-word;
}

.reader-body p {
  margin-bottom: 1.25rem;
}

.reader-body h2, .reader-body h3 {
  color: var(--text-main);
  margin-top: 1.8rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.reader-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 1.25rem 0;
  border: 1px solid var(--border);
}

.reader-body pre {
  background: var(--bg-app);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  overflow-x: auto;
  margin: 1.25rem 0;
}

.reader-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ========================================================================= */
/* 2. TRUE XIAOHONGSHU WATERFALL (MASONRY) VIEW (NO SIDEBAR)                 */
/* ========================================================================= */

.xhs-waterfall-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  height: calc(100vh - 50px);
  overflow: hidden;
  background: var(--bg-app);
}

/* Top Horizontal Category Tabs (Xiaohongshu style) */
.xhs-tabs-bar {
  height: 42px;
  min-height: 42px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 0.85rem;
  overflow-x: auto;
  white-space: nowrap;
  gap: 0.4rem;
  scrollbar-width: none;
}

.xhs-tabs-bar::-webkit-scrollbar {
  display: none;
}

.xhs-tab-item {
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.12s ease;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 4px;
}

.xhs-tab-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

.xhs-tab-item.active {
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
}

.xhs-waterfall-scroll {
  flex: 1 1 0%;
  overflow-y: auto;
  padding: 0.75rem;
}

/* True CSS / Multi-Column Masonry (Staggered Heights) */
.xhs-masonry {
  column-count: 2;
  column-gap: 10px;
  max-width: 1400px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .xhs-masonry {
    column-count: 3;
    column-gap: 12px;
  }
}

@media (min-width: 1024px) {
  .xhs-masonry {
    column-count: 4;
    column-gap: 14px;
  }
}

@media (min-width: 1400px) {
  .xhs-masonry {
    column-count: 5;
    column-gap: 16px;
  }
}

.xhs-masonry-item {
  break-inside: avoid;
  margin-bottom: 10px;
}

@media (min-width: 640px) {
  .xhs-masonry-item {
    margin-bottom: 14px;
  }
}

.xhs-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.xhs-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-dark);
}

.xhs-card.is-read {
  opacity: 0.75;
}

.xhs-cover-wrap {
  width: 100%;
  background: var(--bg-app);
  overflow: hidden;
  position: relative;
}

.xhs-cover-img {
  width: 100%;
  display: block;
  object-fit: cover;
  max-height: 280px;
}

.xhs-cover-fallback {
  width: 100%;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  color: var(--text-muted);
  padding: 0.75rem;
  text-align: center;
}

.xhs-card-body {
  padding: 0.65rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.xhs-card-title {
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.xhs-card-snippet {
  font-size: 0.72rem;
  line-height: 1.38;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.xhs-card-footer {
  margin-top: 0.25rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.xhs-publisher-badge {
  font-weight: 600;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 110px;
}

/* Mobile Post Reader (Full Page Slide with Back Arrow) */
.mobile-post-reader {
  position: fixed;
  inset: 0;
  background: #ffffff;
  z-index: 100;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mobile-post-reader-header {
  height: 48px;
  min-height: 48px;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.85rem;
  z-index: 10;
}

.mobile-post-reader-content {
  flex: 1 1 0%;
  overflow-y: auto;
  padding: 1.25rem 1rem 5rem 1rem;
}

/* ========================================================================= */
/* 3. SETTINGS VIEW PAGE - BEAUTIFUL, MODERN, RESPONSIVE                     */
/* ========================================================================= */

.settings-container {
  display: flex;
  flex: 1;
  height: calc(100vh - 50px);
  overflow: hidden;
  background: var(--bg-app);
}

@media (max-width: 768px) {
  .settings-container {
    flex-direction: column;
  }
}

.settings-nav {
  width: 220px;
  min-width: 220px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  padding: 1rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

@media (max-width: 768px) {
  .settings-nav {
    width: 100%;
    min-width: 100%;
    height: 44px;
    min-height: 44px;
    padding: 0 0.5rem;
    flex-direction: row;
    border-right: none;
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    white-space: nowrap;
    align-items: center;
  }
}

.settings-nav-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.1s ease;
  white-space: nowrap;
}

.settings-nav-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

.settings-nav-item.active {
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
}

.settings-content-area {
  flex: 1 1 0%;
  width: 100%;
  overflow-y: auto;
  padding: 1.25rem 1.5rem;
}

@media (min-width: 1024px) {
  .settings-content-area {
    padding: 1.75rem 2.25rem;
  }
}

.settings-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
  width: 100%;
}

@media (min-width: 768px) {
  .settings-card {
    padding: 1.75rem;
  }
}

.settings-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--text-main);
}

.settings-card-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

/* Modals & Overlays */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1rem;
  font-weight: 700;
}

.modal-body {
  padding: 1.25rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.form-input, .form-select {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.7rem;
  color: var(--text-main);
  font-size: 0.825rem;
  outline: none;
}

.form-input:focus, .form-select:focus {
  border-color: var(--border-focus);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: var(--text-muted);
  padding: 3rem 1.5rem;
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.empty-state h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.3rem;
}

/* Login Screen */
.login-container {
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.25rem 1.75rem;
  box-shadow: var(--shadow-md);
}

.login-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 0.35rem;
}

.login-subtitle {
  text-align: center;
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.alert-danger {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--danger);
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  margin-bottom: 1.1rem;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-spin {
  animation: spin 1s linear infinite;
}