:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #131c2e;
  --bg-card: #1a253a;
  --border-color: #2a3b5c;
  
  --accent-color: #d97706;     /* أصفر نحاسي / طابع ملفات التحقيق */
  --accent-glow: rgba(217, 119, 6, 0.25);
  --cyan-color: #00e5ff;       /* لمسات رقمية استخباراتية */
  --danger-color: #dc2626;     /* تحذيرات وأخطاء */
  --success-color: #16a34a;    /* قضايا محلولة */
  
  --text-main: #f9fafb;        /* أبيض ساطع ومريح للعناوين والنصوص الأساسية */
  --text-muted: #d1d5db;       /* رمادي فاتح وواضح للوصف والنصوص الفرعية */
  
  --font-family: 'Tajawal', sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  max-width: 900px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 15px;
}

/* Header */
.main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon-wrapper {
  width: 40px;
  height: 40px;
  background: var(--bg-primary);
  border: 1px solid var(--cyan-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-color);
  font-size: 1.2rem;
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.3);
}

.logo h1 {
  margin: 0;
  font-size: 1.3rem;
  letter-spacing: 1px;
  color: var(--text-main);
}

.sub-logo {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: block;
  font-family: monospace;
}

.rank-badge {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--cyan-color);
}

/* Desk Paper & Cards Styling */
.desk-paper {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  position: relative;
  color: var(--text-main);
}

.classification-stamp {
  font-size: 0.7rem;
  color: var(--danger-color);
  letter-spacing: 1.5px;
  font-weight: 800;
  border: 1px dashed var(--danger-color);
  padding: 2px 8px;
  display: inline-block;
  margin-bottom: 12px;
  text-transform: uppercase;
}

/* Unified Buttons System */
.btn-detective {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  font-family: var(--font-family);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  position: relative;
  z-index: 5;
}

.btn-detective:hover {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: #fff;
  box-shadow: 0 0 12px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-detective:active {
  transform: translateY(0);
}

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

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

.btn-danger {
  background-color: rgba(220, 38, 38, 0.15);
  border-color: var(--danger-color);
  color: #f87171;
}

.btn-danger:hover {
  background-color: var(--danger-color);
  color: #fff;
  box-shadow: 0 0 12px rgba(220, 38, 38, 0.4);
}

.btn-story {
  background: #2563eb;
  border-color: #2563eb;
}

.btn-story:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.4);
}

.btn-accent {
  background-color: var(--cyan-color);
  border-color: var(--cyan-color);
  color: #000;
}

.btn-accent:hover {
  background-color: #00b4d8;
  color: #000;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
}

.btn-small {
  padding: 6px 12px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 24px;
  font-size: 1.05rem;
  width: 100%;
}

/* Inputs & Forms */
.dossier-input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: #ffffff;
  font-size: 0.95rem;
  margin-top: 6px;
  margin-bottom: 16px;
  font-family: var(--font-family);
  transition: var(--transition);
}

.dossier-input:focus {
  outline: none;
  border-color: var(--cyan-color);
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.2);
}

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

.input-group {
  text-align: right;
  margin-bottom: 5px;
}

.input-group label {
  font-size: 0.85rem;
  font-weight: bold;
  color: var(--text-muted);
}

.auth-buttons {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.auth-buttons button {
  flex: 1;
}

.error-msg {
  color: var(--danger-color);
  font-size: 0.85rem;
  margin-bottom: 10px;
  min-height: 20px;
}

/* Hero Banner & Menu */
.hero-banner {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  color: var(--text-main);
}

.hero-badge {
  font-size: 0.75rem;
  color: var(--cyan-color);
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.3);
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 15px;
}

.hero-banner h2 {
  margin-top: 0;
  font-size: 1.6rem;
  color: var(--text-main);
}

.hero-banner p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 500px;
  margin: 0 auto 25px auto;
  line-height: 1.6;
}

.menu-actions-primary {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.menu-grid button {
  width: 100%;
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.section-header h2 {
  margin: 0;
  font-size: 1.3rem;
  color: var(--text-main);
}

/* Cases Grid */
.cases-grid, .cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

/* Leaderboard & Stats */
.stats-card-highlight {
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: rgba(0, 229, 255, 0.04);
  border: 1px dashed var(--cyan-color);
  margin-bottom: 15px;
  padding: 15px;
  text-align: center;
}

.accent-text { color: var(--cyan-color); font-size: 1.1rem; }
.gold-text { color: #f1c40f; font-size: 1.1rem; }
.divider-vertical { width: 1px; height: 25px; background: var(--border-color); }

.leaderboard-header {
  display: flex;
  justify-content: space-between;
  padding: 10px 15px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  font-weight: bold;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

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

.leaderboard-list > div, 
.leaderboard-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 12px 15px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  color: var(--text-main);
}

.leaderboard-list > div:hover {
  border-color: var(--cyan-color);
}

/* Case Board & Story Container */
.board-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 15px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 15px;
  color: var(--text-main);
}

.board-header h2 {
  margin: 5px 0 0 0;
  font-size: 1.2rem;
  color: var(--text-main);
}

.case-tag {
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: bold;
  text-transform: uppercase;
}

.case-tag.open {
  background: rgba(22, 163, 74, 0.15);
  color: var(--success-color);
  border: 1px solid var(--success-color);
}

.stats-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 15px;
  font-size: 0.9rem;
  color: var(--text-main);
}

.btn-hint-custom {
  background: rgba(217, 119, 6, 0.15);
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
  padding: 6px 12px;
}

.btn-hint-custom:hover {
  background: var(--accent-color);
  color: #fff;
}

/* Tabs */
.board-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin-bottom: 15px;
  padding-bottom: 5px;
}

.tab-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}

.tab-btn.active, .tab-btn:hover {
  background: var(--bg-card);
  color: var(--cyan-color);
  border-color: var(--cyan-color);
}

.tab-pane {
  display: none;
}

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

.hint-subtext {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.cooldown-banner {
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid var(--danger-color);
  color: #f87171;
  padding: 10px;
  border-radius: var(--radius-sm);
  text-align: center;
  margin-top: 15px;
  font-size: 0.9rem;
}

/* Story Cards & Archive Fixes */
#storyContainer {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

#storyContainer > div,
.story-case-card, 
.archive-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  transition: var(--transition);
  color: var(--text-main);
}

#storyContainer > div:hover {
  border-color: var(--cyan-color);
}

#storyContainer h3, 
#storyContainer h4,
#storyContainer .case-title {
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 8px;
}

#storyContainer p, 
#storyContainer .case-desc,
.message-content, 
.day-message, 
.case-description,
.card-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 15px;
}

#storyContainer span, 
#storyContainer .progress-text {
  color: var(--cyan-color);
  font-weight: 600;
}

/* Settings & Instructions */
.instructions-list {
  padding-right: 20px;
  line-height: 1.8;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.instructions-list li {
  margin-bottom: 8px;
}

.setting-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 15px 0 20px 0;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--text-main);
}

/* Floating Notebook FAB */
.notebook-fab {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background: var(--accent-color);
  color: #fff;
  border: none;
  padding: 12px 20px;
  border-radius: 30px;
  font-family: var(--font-family);
  font-weight: bold;
  box-shadow: 0 4px 15px rgba(217, 119, 6, 0.4);
  cursor: pointer;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.notebook-fab:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.6);
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 20px;
}

.modal-content {
  width: 100%;
  max-width: 500px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  color: var(--text-main);
}

.modal-header h3 {
  margin: 0;
  color: var(--text-main);
}

.close-modal {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.close-modal:hover {
  color: var(--danger-color);
}

#notebookTextArea {
  width: 100%;
  height: 250px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: var(--text-main);
  font-family: var(--font-family);
  resize: vertical;
}

/* Utilities */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 600px) {
  .menu-grid {
    grid-template-columns: 1fr;
  }
  .stats-bar {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}