/* ========================================
   Article Distiller — Design System
   ======================================== */

:root {
  /* Default Colors — Dark Theme */
  --bg-primary: #0d0f12;
  --bg-secondary: #13161c;
  --bg-card: #1a1e28;
  --bg-card-hover: #222733;
  --bg-input: #12151c;
  --bg-modal: #181c26;

  --border: rgba(255, 255, 255, 0.06);
  --border-focus: rgba(232, 178, 80, 0.4);
  --border-subtle: rgba(255, 255, 255, 0.03);

  --text-primary: #e8eaf0;
  --text-secondary: #8b90a0;
  --text-muted: #585e72;
  --text-accent: #e8b250;

  --accent: #e8b250;
  --accent-glow: rgba(232, 178, 80, 0.15);
  --accent-hover: #f0c468;

  --teal: #50c8b8;
  --teal-glow: rgba(80, 200, 184, 0.12);
  --red: #e85050;
  --red-glow: rgba(244, 80, 80, 0.1);
  --green: #4ade80;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), 0 1px 4px rgba(0, 0, 0, 0.2);
  --shadow-modal: 0 24px 80px rgba(0, 0, 0, 0.6), 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px var(--accent-glow);

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-med: 250ms;
  --duration-slow: 400ms;
}

[data-theme="midnight"] {
  --bg-primary: #050814;
  --bg-secondary: #0a0f1c;
  --bg-card: #0b1120;
  --bg-card-hover: #111827;
  --bg-input: #0f1524;
  --bg-modal: #0f1524;
  --accent: #818cf8;
  --text-accent: #818cf8;
  --accent-glow: rgba(129, 140, 248, 0.15);
  --accent-hover: #a5b4fc;
  --border-focus: rgba(129, 140, 248, 0.4);
}

[data-theme="light"] {
  --bg-primary: #f9fafb;
  --bg-secondary: #f3f4f6;
  --bg-card: #ffffff;
  --bg-card-hover: #f3f4f6;
  --bg-input: #ffffff;
  --bg-modal: #ffffff;
  --border: rgba(0, 0, 0, 0.1);
  --border-focus: rgba(37, 99, 235, 0.4);
  --border-subtle: rgba(0, 0, 0, 0.05);
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --text-accent: #2563eb;
  --accent: #2563eb;
  --accent-glow: rgba(37, 99, 235, 0.05);
  --accent-hover: #1d4ed8;
  --teal: #059669;
  --teal-glow: rgba(5, 150, 105, 0.12);
}

[data-theme="mellow"] {
  --bg-primary: #faf9f6;
  --bg-secondary: #f5f4ef;
  --bg-card: #ffffff;
  --bg-card-hover: #f5f4ef;
  --bg-input: #ffffff;
  --bg-modal: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --border-focus: rgba(217, 119, 6, 0.4);
  --border-subtle: rgba(0, 0, 0, 0.04);
  --text-primary: #433e38;
  --text-secondary: #5c554d;
  --text-muted: #a19a91;
  --text-accent: #d97706;
  --accent: #d97706;
  --accent-glow: rgba(217, 119, 6, 0.1);
  --accent-hover: #b45309;
  --teal: #0f766e;
  --teal-glow: rgba(15, 118, 110, 0.12);
}

/* ========================================
   Reset & Base
   ======================================== */

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

[hidden] {
  display: none !important;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle animated gradient background */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 20% 20%, rgba(232, 178, 80, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(80, 200, 184, 0.02) 0%, transparent 50%);
  animation: bgShift 30s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

@keyframes bgShift {
  0% {
    transform: translate(0, 0);
  }

  100% {
    transform: translate(-5%, -5%);
  }
}

/* ========================================
   Layout
   ======================================== */

.app {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ========================================
   Header
   ======================================== */

.header {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-xl);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.logo-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 0 12px var(--accent-glow));
}

.logo h1 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-tag {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 20px;
  white-space: nowrap;
}

.header-stats {
  display: flex;
  gap: var(--space-lg);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ========================================
   Input Panel
   ======================================== */

.input-panel {
  margin-bottom: var(--space-xl);
}

.input-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  transition: border-color var(--duration-med) var(--ease-out);
}

.input-card:focus-within {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

/* Tabs */
.input-tabs {
  display: flex;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}

.tab {
  background: none;
  border: none;
  padding: 0.75rem 1rem;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  color: var(--accent);
  background: var(--accent-glow);
  border-color: rgba(232, 178, 80, 0.2);
}

.tab-icon {
  font-size: 0.9rem;
}

/* Tab Content */
.tab-content {
  display: none;
  animation: fadeSlideIn var(--duration-med) var(--ease-out);
}

.tab-content.active {
  display: block;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Input Group */
.input-group {
  display: flex;
  gap: var(--space-sm);
}

.input-group input {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--duration-fast) var(--ease-out);
}

.input-group input::placeholder {
  color: var(--text-muted);
}

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

textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  resize: vertical;
  min-height: 120px;
  transition: all var(--duration-fast) var(--ease-out);
}

textarea::placeholder {
  color: var(--text-muted);
}

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

.text-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--space-md);
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
}

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: var(--bg-primary);
  border: none;
}

.button-primary:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.button-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.button-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary Button (Legacy/Input form) */
.btn-primary {
  /* (Keep old btn-primary for compatibility if still used in input panel) */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 700;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;


}

/* Spinner */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(13, 15, 18, 0.2);
  border-top-color: var(--bg-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* Status Bar */
.status-bar {
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(232, 178, 80, 0.15);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.status-pulse {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

.status-text {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
}

/* ========================================
   Error Toast
   ======================================== */

.error-toast {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--red-glow);
  border: 1px solid rgba(232, 80, 80, 0.25);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  animation: slideDown var(--duration-med) var(--ease-spring);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.error-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

.error-message {
  flex: 1;
  font-size: 0.85rem;
  color: var(--red);
  line-height: 1.4;
}

.error-close {
  background: none;
  border: none;
  color: var(--red);
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0.6;
  padding: 4px;
  transition: opacity var(--duration-fast);
}

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

/* ========================================
   Articles Section
   ======================================== */

.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.section-count {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 2px 10px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 20px;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--text-muted);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.empty-state p {
  font-size: 0.85rem;
  max-width: 340px;
  margin: 0 auto;
}

/* Article Card */
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  cursor: pointer;
  transition: all var(--duration-med) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.article-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent) 0%, var(--teal) 100%);
  opacity: 0;
  transition: opacity var(--duration-med) var(--ease-out);
}

.article-card:hover {
  border-color: rgba(255, 255, 255, 0.1);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.article-card:hover::before {
  opacity: 1;
}

.settings-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem 0.5rem;
  transition: all var(--duration-fast);
  margin-left: var(--space-md);
}

.settings-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

[contenteditable="true"] {
  outline: 2px dashed var(--accent);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  /* Neutral dark background */
  color: var(--text-primary) !important;
  transition: all var(--duration-fast);
}

[data-theme="light"] [contenteditable="true"] {
  background: rgba(0, 0, 0, 0.03);
}

[contenteditable="true"]:focus {
  outline-color: var(--teal);
  background: rgba(80, 200, 184, 0.1);
}

.article-feed {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.article-source {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--accent-glow);
  color: var(--accent);
}

.article-source.paste {
  background: var(--teal-glow);
  color: var(--teal);
}

.article-source.folder {
  background: rgba(120, 80, 232, 0.12);
  color: #a080e8;
}

.article-date {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.article-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.article-tldr {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-footer {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

.article-stat {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-stat .reduction {
  color: var(--green);
  font-weight: 600;
}

.article-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.btn-delete {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
  opacity: 0;
  pointer-events: none; /* invisible but also not clickable when hidden */
}

.article-card:hover .btn-delete {
  opacity: 1;
  pointer-events: auto;
}

.btn-delete:hover {
  color: var(--red);
  background: var(--red-glow);
}

/* ========================================
   Modal
   ======================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-2xl) var(--space-lg);
  overflow-y: auto;
  animation: fadeIn var(--duration-fast) var(--ease-out);
}

.modal-overlay[hidden] {
  display: none !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.modal {
  background: var(--bg-modal);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 760px;
  box-shadow: var(--shadow-modal);
  position: relative;
  animation: modalIn var(--duration-med) var(--ease-spring);
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.97);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast);
  z-index: 10;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

/* Modal Toolbar */
.modal-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px 10px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(4px);
}

.formatting-options {
  display: flex;
  align-items: center;
  gap: 4px;
}

.format-btn {
  background: none;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-sans);
  cursor: pointer;
  padding: 5px 10px;
  border-radius: 6px;
  transition: all var(--duration-fast);
  line-height: 1;
}

.format-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border-color: var(--border);
}

.format-btn.active {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: rgba(232, 178, 80, 0.25);
}

.modal-toolbar .divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
}

.modal-close-new {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast);
  flex-shrink: 0;
  line-height: 1;
}

.modal-close-new:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

.modal-content {
  padding: var(--space-xl);
}

/* ── Font size modifiers ── */
.modal-content.font-sm { font-size: 0.82rem; }
.modal-content.font-md { font-size: 0.93rem; }
.modal-content.font-lg { font-size: 1.05rem; }

.modal-content.font-sm .modal-title  { font-size: 1.1rem; }
.modal-content.font-md .modal-title  { font-size: 1.3rem; }
.modal-content.font-lg .modal-title  { font-size: 1.5rem; }

.modal-content.font-sm .summary-tldr   { font-size: 0.85rem; }
.modal-content.font-lg .summary-tldr   { font-size: 1.05rem; }

.modal-content.font-sm .summary-points li { font-size: 0.82rem; }
.modal-content.font-lg .summary-points li { font-size: 0.95rem; }

.modal-content.font-sm .summary-details { font-size: 0.78rem; }
.modal-content.font-lg .summary-details { font-size: 0.93rem; }

/* ── Spacing modifiers ── */
.modal-content.space-compact .summary-section  { margin-bottom: 1.25rem; }
.modal-content.space-relaxed .summary-section  { margin-bottom: 3rem; }

.modal-content.space-compact .summary-points li { padding-top: 4px; padding-bottom: 4px; }
.modal-content.space-relaxed .summary-points li { padding-top: 10px; padding-bottom: 10px; }

.modal-content.space-compact .summary-tldr { padding: 10px 14px; }
.modal-content.space-relaxed .summary-tldr { padding: 20px 24px; }


.modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: var(--space-sm);
  padding-right: var(--space-xl);
  letter-spacing: -0.02em;
}

.modal-source {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
  word-break: break-all;
}

.modal-source a {
  color: var(--teal);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.modal-source a:hover {
  color: var(--accent);
}

/* Summary Sections */
.summary-section {
  margin-bottom: var(--space-xl);
}

.summary-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.summary-tldr {
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.7;
  font-weight: 500;
  padding: var(--space-md) var(--space-lg);
  background: var(--accent-glow);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.summary-points {
  list-style: none;
  padding: 0;
}

.summary-points li {
  position: relative;
  padding: var(--space-sm) 0 var(--space-sm) var(--space-lg);
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.summary-points li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--teal);
  font-weight: 600;
}

.summary-points li+li {
  border-top: 1px solid var(--border-subtle);
}

.summary-details {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  white-space: pre-wrap;
}

.summary-details code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
}

/* References */
.summary-references {
  list-style: none;
  padding: 0;
}

.summary-references li {
  padding: var(--space-sm) 0;
}

.summary-references li+li {
  border-top: 1px solid var(--border-subtle);
}

.summary-references a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--teal);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--duration-fast);
  word-break: break-all;
}

.summary-references a::before {
  content: '🔗';
  font-size: 0.75rem;
  flex-shrink: 0;
}

.summary-references a:hover {
  color: var(--accent);
}

.modal-stats {
  display: flex;
  gap: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
  margin-top: var(--space-lg);
}

.modal-stat {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.modal-stat strong {
  color: var(--text-secondary);
  font-weight: 600;
}

/* Tag Badges */
.tag-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.tag-badge {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 12px;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(13, 235, 175, 0.2);
}

.article-card .tag-container {
  margin-top: 12px;
}

/* Metadata Buttons */
.btn-meta {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--duration-fast);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.btn-meta:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.full-text-toggle {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  display: inline-block;
}

.full-text-container {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(0,0,0,0.2);
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-wrap;
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--border);
}

.modal-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.btn-cancel-edit {
  color: var(--red);
  border-color: var(--red-glow);
  background: var(--red-glow);
}

.btn-cancel-edit:hover {
  background: rgba(232, 80, 80, 0.18);
  border-color: rgba(232, 80, 80, 0.35);
}

.modal-actions > [style*="flex: 1"] {
  flex: 1;
}

/* Source list inside meta row */
.source-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.source-list li a {
  color: var(--teal);
  font-size: 0.8rem;
  text-decoration: none;
  word-break: break-all;
}

.source-list li a:hover {
  color: var(--accent);
}


/* ========================================
   Responsive
   ======================================== */

@media (max-width: 640px) {
  .app {
    padding: 0 var(--space-md);
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

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

  .input-group .btn-primary {
    width: 100%;
  }

  .logo-tag {
    display: none;
  }

  .modal {
    margin: var(--space-md);
    border-radius: var(--radius-lg);
  }

  .modal-content {
    padding: var(--space-lg);
  }
}

/* ========================================
   Scrollbar
   ======================================== */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ========================================
   Selection
   ======================================== */

::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

/* Modal Enhancements & Fixes */
[contenteditable="true"] {
  outline: none;
  padding: 2px 4px;
  border-radius: 4px;
  transition: background var(--duration-fast);
  color: var(--text-primary) !important; /* Fix for reported 'yellow text' issue */
}

[contenteditable="true"]:focus {
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.modal-image-container {
  margin: -1.5rem -1.5rem 1.5rem -1.5rem;
  height: 280px;
  overflow: hidden;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.modal-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.modal-image-container:hover img {
  transform: scale(1.03);
}

.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 120px;
}

.meta-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
}

.meta-item span:not(.meta-label), 
.meta-item a {
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--text-primary);
}

.meta-item a:hover {
  color: var(--accent);
}

.source-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.add-source-btn {
  background: none;
  border: 1px dashed var(--border);
  color: var(--text-muted);
  font-size: 0.7rem;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  margin-top: 4px;
  transition: all 0.2s;
}

.add-source-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.summary-section {
  margin-bottom: 2.5rem;
  position: relative;
}

.summary-section.excluded {
  opacity: 0.3;
  filter: grayscale(1);
}

.summary-section:hover .btn-section-delete {
  opacity: 1;
}

.section-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.8rem;
}

.summary-label {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-accent);
  font-weight: 700;
}

.btn-section-delete {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 0.8rem;
  opacity: 0;
  transition: all 0.2s;
  border-radius: 4px;
}

.btn-section-delete:hover {
  background: var(--bg-card-hover);
  color: var(--red);
}

.modal-byline {
  margin-top: 3rem;
  padding: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-left: 3px solid var(--border);
}