/* ===========================
   DASHBOARD LAYOUT
   =========================== */

.dashboard-container {
  display: flex;
  min-height: 100vh;
  gap: var(--spacing-md);
  background: var(--bg);
}

/* ===========================
   NAVBAR
   =========================== */

.navbar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex: 1;
}

.navbar-toggle {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  display: none;
  transition: all var(--transition-fast);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  width: 40px;
  height: 40px;
}

.navbar-toggle:hover {
  background: var(--surface);
  color: var(--primary);
  transform: scale(1.1);
}

.navbar-toggle.active {
  background: var(--primary);
  color: white;
}

.navbar-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-profile-menu {
  position: relative;
}

.user-profile-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.9rem;
}

.user-profile-btn:hover {
  background: var(--border);
}

.user-profile-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #6C63FF, #4c3dd9);
  font-weight: 700;
  font-size: 0.9rem;
  color: white;
}

.user-profile-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--spacing-sm);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  display: none;
  animation: slideDown var(--transition-smooth);
}

.user-profile-dropdown.active {
  display: block;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.user-profile-header {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--border);
}

.user-profile-name {
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--spacing-xs);
}

.user-profile-email {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.user-profile-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--text);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-size: 0.9rem;
  font-family: inherit;
}

.user-profile-item:hover {
  background: var(--surface);
  color: var(--primary);
}

.user-profile-item i {
  width: 16px;
  text-align: center;
}

.user-profile-item.danger {
  color: var(--danger);
  border-top: 1px solid var(--border);
}

.user-profile-item.danger:hover {
  background: rgba(255, 71, 87, 0.1);
}

.user-profile-divider {
  height: 1px;
  background: var(--border);
  margin: var(--spacing-xs) 0;
}

.notification-bell {
  position: relative;
  width: 40px;
  height: 40px;
}

.notification-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  background: var(--danger);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  cursor: pointer;
}

/* ===========================
   SIDEBAR
   =========================== */

.sidebar {
  width: 240px;
  background: var(--card-bg);
  border-right: 1px solid var(--border);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  box-shadow: 2px 0 16px rgba(108, 99, 255, 0.07);
}

body.light-mode .sidebar {
  background: linear-gradient(180deg, #F2F3FD 0%, #EEF0FB 100%);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  cursor: pointer;
}

.sidebar-logo-icon {
  width: 5rem;
  height: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  background: transparent;
}

.sidebar-logo-icon svg {
  width: 100%;
  height: 100%;
  max-width: 80px;
  max-height: 80px;
}

.sidebar-logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: transparent;
  filter: drop-shadow(0 0 10px rgba(108, 99, 255, 0.35));
  transition: filter var(--transition-smooth);
}

.sidebar-header:hover .sidebar-logo-icon img {
  filter: drop-shadow(0 0 16px rgba(168, 85, 247, 0.5));
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-item:hover {
  background: var(--surface);
  color: var(--text);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(108, 99, 255, 0.18) 0%, rgba(108, 99, 255, 0.06) 100%);
  color: var(--primary);
  border-left: 3px solid var(--primary);
  padding-left: calc(var(--spacing-lg) - 3px);
  box-shadow: inset 0 0 0 1px rgba(108, 99, 255, 0.12);
}

.nav-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.nav-label {
  flex: 1;
}

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-lg);
}

/* ===========================
   MAIN CONTENT
   =========================== */

.main-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  box-sizing: border-box;
  position: relative;
}

.main-content::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 400px;
  background-image: 
    linear-gradient(rgba(108, 99, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 99, 255, 0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,1), transparent);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1), transparent);
  pointer-events: none;
  z-index: -1;
  border-radius: var(--radius-lg);
}

body.light-mode .main-content::before {
  background-image: 
    linear-gradient(rgba(108, 99, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 99, 255, 0.08) 1px, transparent 1px);
}

.page-header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: stretch;
  margin-bottom: var(--spacing-lg);
}

.page-title {
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary) 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* ===========================
   STATS ROW
   =========================== */

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  text-align: center;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(10px);
  border-top: 3px solid transparent;
  animation: fadeInUp 0.45s ease both;
  box-shadow: 0 2px 10px rgba(108, 99, 255, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
}

/* Staggered entrance for stat cards */
.stats-grid .stat-card:nth-child(1) { animation-delay: 0.05s; border-top-color: var(--primary); }
.stats-grid .stat-card:nth-child(2) { animation-delay: 0.12s; border-top-color: var(--warning); }
.stats-grid .stat-card:nth-child(3) { animation-delay: 0.19s; border-top-color: var(--success); }
.stats-grid .stat-card:nth-child(4) { animation-delay: 0.26s; border-top-color: var(--danger); }

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 36px rgba(108, 99, 255, 0.16);
  border-color: rgba(108, 99, 255, 0.3);
}

.stat-icon {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.stat-icon.warning { color: var(--warning); }
.stat-icon.danger { color: var(--danger); }
.stat-icon.success { color: var(--success); }

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-trend {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--surface);
  border-radius: var(--radius-md);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.stat-trend.up { color: var(--success); }
.stat-trend.down { color: var(--danger); }

/* ===========================
   DEADLINE SECTION
   =========================== */

.deadlines-section {
  margin-bottom: var(--spacing-lg);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1.1em;
  background: linear-gradient(180deg, var(--primary), #a855f7);
  border-radius: 2px;
  flex-shrink: 0;
}

.view-all-btn {
  font-size: 0.9rem;
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.view-all-btn:hover {
  opacity: 0.8;
}

.deadlines-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.deadline-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  animation: fadeInUp 0.4s ease both;
}

.deadlines-grid .deadline-card:nth-child(1) { animation-delay: 0.1s; }
.deadlines-grid .deadline-card:nth-child(2) { animation-delay: 0.18s; }
.deadlines-grid .deadline-card:nth-child(3) { animation-delay: 0.26s; }
.deadlines-grid .deadline-card:nth-child(4) { animation-delay: 0.34s; }
.deadlines-grid .deadline-card:nth-child(n+5) { animation-delay: 0.4s; }

.deadline-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(108, 99, 255, 0.15);
  border-color: rgba(108, 99, 255, 0.3);
}

.deadline-card-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  word-break: break-word;
}

.deadline-card-subject {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.deadline-card-date {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.deadline-card-date i {
  font-size: 0.8rem;
}

.deadline-card-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.deadline-card-status {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.deadline-card-status.urgent {
  background-color: #ffebee;
  color: #c62828;
}

.deadline-card-status.normal {
  background-color: #e3f2fd;
  color: #1565c0;
}

/* ===========================
   MINI CALENDAR
   =========================== */

.mini-calendar {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: var(--spacing-lg);
  box-shadow: 0 2px 10px rgba(108, 99, 255, 0.07);
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  font-weight: 700;
  font-size: 1.1rem;
}

.calendar-nav {
  display: flex;
  gap: 10px;
}

.calendar-nav button {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  font-size: 1.25rem;
  width: 35px;
  height: 35px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.calendar-nav button:hover {
  background: var(--border);
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-bottom: 10px;
  text-align: center;
  font-weight: 700;
  color: var(--text);
}

.weekday {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-auto-rows: 60px;
  gap: 8px;
  padding: 10px;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.calendar-day {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--text);
  border: 1px solid var(--border);
  transition: all 0.2s;
  position: relative;
  background: var(--card-bg);
}

.calendar-day:hover {
  background: var(--surface);
}

.calendar-day.today {
  background: var(--primary);
  color: white;
  font-weight: 700;
}

.calendar-day.has-deadline::after {
  content: '';
  position: absolute;
  bottom: 2px;
  width: 4px;
  height: 4px;
  background: var(--primary);
  border-radius: 50%;
}

.calendar-day.disabled {
  color: var(--text-secondary);
  opacity: 0.5;
}

/* Calendar Grid Layout */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
}

.calendar-day-header {
  font-weight: 700;
  text-align: center;
  padding: 12px 4px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-transform: uppercase;
  grid-column: auto;
  background-color: var(--surface);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
}

/* Calendar empty cells for alignment */
.calendar-empty {
  visibility: hidden;
}

/* Calendar date cells */
.calendar-date {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  color: var(--text);
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  aspect-ratio: 1;
  padding: 0;
  cursor: pointer;
}

/* ===========================
   PROGRESS BARS
   =========================== */

.progress-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
}

.progress-item {
  margin-bottom: var(--spacing-lg);
}

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

.progress-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
  font-size: 0.95rem;
  font-weight: 600;
}

.progress-label-name {
  color: var(--text);
}

.progress-label-percent {
  color: var(--text-secondary);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--surface);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), rgba(108, 99, 255, 0.6));
  border-radius: 4px;
  transition: width var(--transition-smooth);
}

/* ===========================
   NEW FEATURES
   =========================== */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.feature-card {
  animation: fadeInUp 0.45s ease both;
  padding: var(--spacing-md) !important;
  max-height: 380px;
  overflow-y: auto;
}

.timer-display {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  font-family: 'Courier New', monospace;
  margin: var(--spacing-lg) 0;
  letter-spacing: 0.1em;
}

.timer-buttons {
  animation: slideInUp var(--transition-smooth);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.85rem;
}

.streak-display {
  text-align: center;
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(255, 165, 2, 0.1), rgba(255, 165, 2, 0.05));
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
}

/* Focus Mode */
body.focus-mode {
  background: var(--bg);
}

body.focus-mode .sidebar,
body.focus-mode .navbar-titles,
body.focus-mode .navbar-right {
  display: none;
}

body.focus-mode .main-content {
  max-width: 100%;
  margin: auto;
}

body.focus-mode .deadlines-grid {
  grid-template-columns: 1fr;
}

body.focus-mode .page-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-2xl);
}

/* ===========================
   RESPONSIVE
   =========================== */

/* Responsive for larger screens */
@media (min-width: 1600px) {
  /* Keep mobile-like single-column layout on large screens */
}

@media (max-width: 1024px) {
  .sidebar {
    width: 100px;
    padding: var(--spacing-md);
  }

  .sidebar-header {
    flex-direction: column;
    text-align: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
  }

  .sidebar-logo-icon {
    width: 3.5rem;
    height: 3.5rem;
  }

  .sidebar-logo-icon svg {
    max-width: 56px;
    max-height: 56px;
  }

  .nav-label {
    display: none;
  }

  .nav-item {
    justify-content: center;
    padding: var(--spacing-md);
  }

  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }

  .deadlines-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }

  /* Calendar styles for large screens (1024px+) - use default */
}

@media (max-width: 767px) {
  .dashboard-container {
    flex-direction: column;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 240px;
    max-width: 240px;
    transform: translateX(-100%);
    transition: transform var(--transition-smooth);
    z-index: 150;
    padding: var(--spacing-lg);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .sidebar-header {
    flex-direction: row;
    justify-content: flex-start;
    margin-bottom: var(--spacing-xl);
  }

  .sidebar-logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
  }

  .sidebar-logo-icon svg {
    max-width: 40px;
    max-height: 40px;
  }

  .navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 200;
    height: auto;
    min-height: 70px;
  }

  .navbar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .navbar-title {
    display: none;
  }

  .sidebar.active ~ .main-content {
    pointer-events: none;
  }

  .main-content {
    margin-top: 80px;
    padding: var(--spacing-md);
    width: 100%;
    position: relative;
    z-index: 0;
  }

  .page-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }

  .stat-card {
    padding: var(--spacing-md);
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.8rem;
  }

  .deadlines-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .page-actions {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .mini-calendar,
  .progress-section {
    margin-bottom: var(--spacing-lg);
  }

  /* Calendar mobile styles - tablet */
  .calendar-grid {
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
  }

  .calendar-day-header {
    font-size: 0.8rem;
    padding: 10px 3px;
    font-weight: 700;
    background-color: var(--surface);
    border-radius: 4px;
    min-height: 28px;
  }

  .calendar-date {
    min-height: 40px;
    aspect-ratio: 1;
    font-size: 0.95rem;
    border-radius: 4px;
  }
}

@media (max-width: 480px) {
  .sidebar {
    width: 100%;
    max-width: 100%;
  }

  .sidebar-logo-icon {
    width: 2rem;
    height: 2rem;
  }

  .main-content {
    padding: var(--spacing-sm);
    margin-top: 70px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .page-title {
    font-size: 1.1rem;
  }

  .card {
    padding: var(--spacing-md);
  }

  .calendar.card {
    padding: 8px;
  }

  .main-content {
    padding: var(--spacing-sm);
    margin-top: 80px;
  }

  /* Calendar mobile styles - small phones */
  .calendar {
    max-width: 100%;
    padding: 0;
  }

  .calendar-grid {
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
  }

  .calendar-day-header {
    font-size: 0.75rem;
    padding: 6px 2px;
    font-weight: 700;
    background-color: var(--surface);
    border-radius: 3px;
    min-height: 20px;
  }

  .calendar-date {
    min-height: 32px;
    aspect-ratio: 1;
    font-size: 0.85rem;
    border-radius: 4px;
  }
}