/* CSS Variables and Theme Configuration - Light Theme */
:root {
  --color-primary: #e85d04;
  --color-secondary: #f48c06;
  --color-accent: #faa307;
  --color-bg-dark: #fefae0;
  --color-bg-panel: #fffbeb;
  --color-bg-card: #ffffff;
  --color-bg-input: #fef3c7;
  --color-text-bright: #1c1917;
  --color-text-main: #292524;
  --color-text-muted: #78716c;
  --color-success: #16a34a;
  --color-danger: #dc2626;
  --color-border: #d6d3d1;
  
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Hand-crafted shadows with slight imperfections */
  --shadow-hand-sm: 2px 3px 0px 0px rgba(0, 0, 0, 0.08);
  --shadow-hand-md: 4px 5px 0px 0px rgba(0, 0, 0, 0.1);
  --shadow-hand-lg: 6px 7px 0px 0px rgba(0, 0, 0, 0.12);
  --shadow-hand-orange: 3px 4px 0px 0px rgba(232, 93, 4, 0.2);
  --shadow-hand-hover: 5px 6px 0px 0px rgba(0, 0, 0, 0.15);
}

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

body {
  background-color: var(--color-bg-dark);
  color: var(--color-text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  /* Subtle paper texture overlay */
  background-image: 
    linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px),
    linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 20px 20px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-text-bright);
  letter-spacing: -0.02em;
}

/* Scrollbar Styles - Hand-crafted feel */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
}
::-webkit-scrollbar-thumb {
  background: var(--color-secondary);
  border-radius: 2px;
  border: 2px solid var(--color-bg-panel);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* Background Geometry - Hand-drawn feel */
.parallax-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  background-image: 
    radial-gradient(circle at 15% 25%, rgba(232, 93, 4, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 85% 75%, rgba(244, 140, 6, 0.03) 0%, transparent 45%);
  background-size: cover;
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.parallax-bg::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.4;
}

/* Landing Section */
.landing-section {
  display: none;
  min-height: 100vh;
  padding: 2rem;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.landing-section.active-view {
  display: flex;
  animation: fadeIn var(--transition-slow);
}

/* Hero Background with Educational Theme */
.landing-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 450px;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-panel) 100%);
  z-index: -1;
  border-bottom: 3px solid var(--color-primary);
}

/* Educational decorative elements */
.edu-decoration {
  position: absolute;
  opacity: 0.06;
  pointer-events: none;
  z-index: -1;
  transition: transform var(--transition-slow);
}

.edu-decoration:hover {
  opacity: 0.1;
  transform: scale(1.05);
}

.edu-book-icon {
  top: 80px;
  left: 5%;
  font-size: 10rem;
  color: var(--color-primary);
}

.edu-pencil-icon {
  top: 120px;
  right: 8%;
  font-size: 8rem;
  color: var(--color-secondary);
}

.edu-atom-icon {
  bottom: 250px;
  left: 8%;
  font-size: 6rem;
  color: var(--color-accent);
}

.edu-calculator-icon {
  bottom: 200px;
  right: 10%;
  font-size: 9rem;
  color: var(--color-primary);
}

.edu-flask-icon {
  top: 200px;
  left: 15%;
  font-size: 5rem;
  color: var(--color-secondary);
}

.edu-globe-icon {
  bottom: 300px;
  right: 15%;
  font-size: 7rem;
  color: var(--color-accent);
}

.landing-header {
  text-align: center;
  margin-top: 1rem;
}

.school-badge {
  display: inline-block;
  background-color: var(--color-primary);
  border: 2px solid var(--color-accent);
  color: var(--color-text-bright);
  font-family: var(--font-display);
  font-weight: 700;
  padding: 0.5rem 1.3rem;
  border-radius: 3px;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: var(--shadow-hand-sm);
  margin-bottom: 0.5rem;
}

.batch-badge {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

.landing-main-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 1100px;
  width: 100%;
  margin: 3rem 0;
  gap: 3.5rem;
}

.logo-wrapper {
  text-align: center;
}

.logo-svg-container {
  width: 160px;
  height: 160px;
  margin: 0 auto 1.5rem;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo-svg {
  width: 100%;
  height: 100%;
}

.brand-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--color-text-bright);
  margin-bottom: 0.2rem;
  text-transform: lowercase;
}

.brand-tagline {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--color-secondary);
  font-weight: 600;
  letter-spacing: 3px;
}

.brand-tagline span {
  color: var(--color-text-muted);
}

.portal-cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  width: 100%;
}

.portal-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: 2.5rem;
  text-align: center;
  position: relative;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-hand-md);
}

.portal-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hand-hover);
}

.portal-card-icon {
  width: 70px;
  height: 70px;
  background: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
  color: var(--color-primary);
  margin: 0 auto 1.5rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal), color var(--transition-normal), background-color var(--transition-normal);
}

.portal-card:hover .portal-card-icon {
  transform: scale(1.05) rotate(3deg);
  border-color: var(--color-primary);
  color: var(--color-secondary);
  background-color: var(--color-bg-panel);
}

.portal-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.8rem;
}

.portal-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  min-height: 4.5em;
  line-height: 1.5;
}

.portal-btn {
  width: 100%;
  padding: 0.9rem 1.8rem;
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-hand-sm);
}

.student-btn {
  background-color: var(--color-primary);
  color: var(--color-text-bright);
}

.student-btn:hover {
  background-color: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hand-md);
}

.teacher-btn {
  background-color: var(--color-bg-input);
  color: var(--color-text-main);
  border: 2px solid var(--color-border);
}

.teacher-btn:hover {
  background-color: var(--color-border);
  color: var(--color-text-bright);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hand-md);
}

.developer-credits {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.dev-name {
  color: var(--color-primary);
  font-weight: 700;
}

/* Panel Sections Common (Student & Teacher Dashboards) */
.panel-section {
  display: none;
  min-height: 100vh;
  flex-direction: column;
  background-color: var(--color-bg-panel);
  /* Subtle paper texture */
  background-image: linear-gradient(rgba(0,0,0,0.01) 1px, transparent 1px);
  background-size: 30px 30px;
}

.panel-section.active-view {
  display: flex;
  animation: slideUp var(--transition-normal);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  background-color: var(--color-bg-dark);
  border-bottom: 2px solid var(--color-border);
  box-shadow: 0 2px 4px rgba(0,0,0,0.03);
}

.panel-branding {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.back-btn, .logout-btn {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  color: var(--color-text-main);
  padding: 0.6rem 1.1rem;
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.back-btn:hover {
  background-color: var(--color-border);
  color: var(--color-text-bright);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.logout-btn:hover {
  background-color: var(--color-danger);
  border-color: var(--color-danger);
  color: var(--color-text-bright);
  transform: translateY(-1px);
}

.panel-logo-info {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.mini-logo {
  height: 40px;
  width: 40px;
}

.panel-logo-info h2 {
  font-size: 1.25rem;
  line-height: 1.2;
}

.panel-logo-info .badge {
  display: inline-block;
  background-color: rgba(232, 93, 4, 0.1);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 0.3rem;
}

.panel-logo-info .teacher-badge {
  background-color: rgba(241, 135, 1, 0.1);
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.panel-logo-info p {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.panel-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.flex-meta {
  gap: 1rem;
}

.meta-item {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background-color: var(--color-bg-card);
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  border: 2px solid var(--color-border);
}

.meta-item i {
  color: var(--color-primary);
  margin-right: 0.3rem;
}

/* Panel Navigation Tabs */
.panel-nav {
  display: flex;
  background-color: var(--color-bg-dark);
  padding: 0 2rem;
  border-bottom: 2px solid var(--color-border);
  gap: 1.5rem;
  box-shadow: 0 2px 3px rgba(0,0,0,0.02);
}

.panel-tab-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 1rem 0.5rem;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.panel-tab-btn i {
  margin-right: 0.4rem;
}

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

.panel-tab-btn::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.panel-tab-btn.active {
  color: var(--color-primary);
}

.teacher-nav .panel-tab-btn.active {
  color: var(--color-secondary);
}

.teacher-nav .panel-tab-btn::after {
  background-color: var(--color-secondary);
}

.panel-tab-btn.active::after {
  transform: scaleX(1);
}

/* Content Area */
.panel-content {
  flex: 1;
  padding: 2.5rem 2rem;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.tab-panel {
  display: none;
  animation: fadeIn var(--transition-normal);
}

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

.panel-panel-header {
  margin-bottom: 2rem;
}

.panel-panel-header h3 {
  font-size: 1.75rem;
  margin-bottom: 0.3rem;
  border-bottom: 2px solid var(--color-border);
  display: inline-block;
  padding-bottom: 0.2rem;
}

.panel-panel-header p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: 0.4rem;
}

.flex-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

/* Class Announcements Feed */
.announcements-feed {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.announcement-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: 1.8rem;
  position: relative;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-hand-sm);
}

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

.announcement-card.high-priority {
  border-left: 6px solid var(--color-danger);
}

.announcement-card.normal-priority {
  border-left: 6px solid var(--color-primary);
}

.announcement-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.announcement-title-group {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.priority-tag {
  font-size: 0.7rem;
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border: 1px solid transparent;
}

.priority-tag.high {
  background-color: rgba(239, 68, 68, 0.1);
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.priority-tag.normal {
  background-color: rgba(243, 91, 4, 0.1);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.announcement-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.announcement-body {
  font-size: 0.95rem;
  color: var(--color-text-main);
  white-space: pre-line;
}

/* Study Notes Section Styling */
.toggle-container {
  display: flex;
  background-color: var(--color-bg-dark);
  padding: 0.4rem;
  border-radius: 8px;
  border: 2px solid var(--color-border);
}

.toggle-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.6rem 1.1rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-normal);
}

.toggle-btn.active {
  background-color: var(--color-primary);
  color: var(--color-text-bright);
  box-shadow: var(--shadow-hand-sm);
}

.notes-search-bar {
  position: relative;
  margin-bottom: 2rem;
}

.notes-search-bar input {
  width: 100%;
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem 1rem 1rem 3rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-bright);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.notes-search-bar input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hand-sm);
}

.search-icon {
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.notes-container-view {
  display: none;
}

.notes-container-view.active-view-block {
  display: block;
  animation: fadeIn var(--transition-normal);
}

/* Subject Grid */
.subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.subject-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 10px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  position: relative;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-hand-sm);
}

.subject-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hand-orange);
}

.subject-icon-box {
  width: 60px;
  height: 60px;
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.8rem;
  color: var(--color-primary);
  margin: 0 auto 1.2rem;
  transition: all var(--transition-normal);
}

.subject-card:hover .subject-icon-box {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-bright);
  transform: scale(1.05);
}

.subject-card h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.subject-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.back-to-subjects {
  background: none;
  border: none;
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  transition: transform var(--transition-fast);
}

.back-to-subjects:hover {
  transform: translateX(-4px);
}

.subject-notes-detail h4 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--color-primary);
  padding-left: 0.8rem;
}

/* Notes Grid (for notes inside subjects) */
.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.note-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-hand-sm);
}

.note-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hand-orange);
}

.note-img-preview {
  height: 160px;
  background-color: var(--color-bg-dark);
  background-size: cover;
  background-position: center;
  position: relative;
  cursor: zoom-in;
  border-bottom: 2px solid var(--color-border);
}

.note-image-count {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background-color: var(--color-primary);
  color: var(--color-text-bright);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  box-shadow: var(--shadow-hand-sm);
}

.note-img-placeholder {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  color: var(--color-text-muted);
  gap: 0.5rem;
}

.note-img-placeholder i {
  font-size: 2.5rem;
  color: rgba(255, 255, 255, 0.05);
}

.note-subject-tag {
  position: absolute;
  top: 0.8rem;
  left: 0.8rem;
  background-color: var(--color-bg-dark);
  color: var(--color-primary);
  font-size: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--color-primary);
}

.note-card-body {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.note-card-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.note-card h5 {
  font-size: 1.1rem;
  line-height: 1.3;
}

.note-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.note-card-footer {
  padding: 0.8rem 1.2rem;
  background-color: rgba(0, 0, 0, 0.15);
  border-top: 2px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.view-note-btn {
  background: none;
  border: none;
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.view-note-btn:hover {
  text-decoration: underline;
}

/* Date-Wise Timeline View */
.timeline-container {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline-container::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 2rem;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-group {
  position: relative;
  margin-bottom: 3rem;
}

.timeline-date-marker {
  position: sticky;
  top: 1rem;
  left: 0;
  display: inline-flex;
  align-items: center;
  background-color: var(--color-primary);
  border: 1px solid var(--color-accent);
  color: var(--color-text-bright);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.4rem 1rem;
  border-radius: 0px;
  z-index: 2;
  margin-left: 0.7rem;
  box-shadow: var(--shadow-flat-sm);
}

.timeline-items {
  margin-left: 4rem;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-item {
  position: relative;
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  transition: border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-hand-sm);
}

.timeline-item::before {
  content: '';
  position: absolute;
  top: 1.8rem;
  left: -2.25rem;
  width: 10px;
  height: 10px;
  background-color: var(--color-bg-panel);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  z-index: 2;
}

.timeline-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hand-md);
}

.timeline-item-img {
  width: 90px;
  height: 90px;
  object-fit: cover;
  cursor: zoom-in;
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.timeline-item-content {
  flex: 1;
}

.timeline-item-subject {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.timeline-item-title {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.timeline-item-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Attendance Dashboard lookup */
.attendance-lookup-box {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
  max-width: 600px;
  margin: 0 auto 2.5rem;
  box-shadow: var(--shadow-hand-md);
}

.lookup-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.lookup-input-group label {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text-muted);
}

.input-with-button {
  display: flex;
  gap: 0.8rem;
}

.input-with-button input {
  flex: 1;
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 6px;
  padding: 0.8rem 1rem;
  color: var(--color-text-bright);
  font-family: var(--font-body);
  font-size: 1rem;
}

.input-with-button input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hand-sm);
}

.accent-btn {
  background-color: var(--color-primary);
  color: var(--color-text-bright);
  font-family: var(--font-display);
  font-weight: 700;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-hand-sm);
}

.accent-btn:hover {
  background-color: var(--color-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hand-md);
}

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

/* Attendance Results Grid */
.attendance-results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  animation: fadeIn var(--transition-normal);
}

.attendance-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem 1.8rem;
  box-shadow: var(--shadow-hand-sm);
}

.attendance-card h4 {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
}

/* Circular Progress gauge */
.percentage-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.circular-progress-container {
  position: relative;
  width: 140px;
  height: 140px;
  margin-bottom: 1rem;
}

.circular-progress {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.circular-progress circle {
  fill: none;
  stroke-width: 8px;
}

.circular-progress .bg-circle {
  stroke: var(--color-bg-input);
}

.circular-progress .progress-circle {
  stroke: var(--color-primary);
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  transition: stroke-dashoffset 0.8s ease-out;
}

.percentage-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-text-bright);
}

.attendance-status-badge {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.3rem 1rem;
  border: 1px solid var(--color-success);
  background-color: rgba(16, 185, 129, 0.05);
  color: var(--color-success);
}

.attendance-status-badge.warning {
  border-color: var(--color-secondary);
  background-color: rgba(241, 135, 1, 0.05);
  color: var(--color-secondary);
}

.attendance-status-badge.danger {
  border-color: var(--color-danger);
  background-color: rgba(239, 68, 68, 0.05);
  color: var(--color-danger);
}

/* Stats Card Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.stat-box {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
}

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

.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-accent { color: var(--color-accent); }

/* Chart Card and Canvas Wrapper */
.chart-card {
  grid-column: span 2;
}

.chart-wrapper {
  position: relative;
  width: 100%;
  height: 220px;
}

/* History logs */
.history-card {
  grid-column: span 2;
}

.history-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  max-height: 200px;
  overflow-y: auto;
}

.history-date-item {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  background-color: rgba(239, 68, 68, 0.05);
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
  padding: 0.3rem 0.8rem;
  border-radius: 0px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.history-date-item.no-records {
  background-color: rgba(16, 185, 129, 0.05);
  border-color: var(--color-success);
  color: var(--color-success);
}

/* ==================== TEACHER DASHBOARD WORKSPACE ==================== */
.teacher-workspace {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 2rem;
  align-items: start;
}

.flex-direction-column {
  grid-template-columns: 1fr;
}

.workspace-form-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  padding: 1.8rem;
  box-shadow: var(--shadow-hand-sm);
}

.workspace-form-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
}

.form-group {
  margin-bottom: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.form-group label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.form-group input, 
.form-group select, 
.form-group textarea {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 6px;
  padding: 0.7rem 0.9rem;
  color: var(--color-text-bright);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-hand-sm);
}

/* File Upload styling */
.file-drop-area {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
  background-color: var(--color-bg-input);
  cursor: pointer;
  transition: border-color var(--transition-normal), background-color var(--transition-normal);
}

.file-drop-area:hover {
  border-color: var(--color-secondary);
  background-color: var(--color-bg-panel);
}

.file-drop-area i {
  font-size: 2rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.file-msg {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.file-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.image-preview-container {
  display: none;
  position: relative;
  margin-top: 1rem;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  max-height: 300px;
  overflow-y: auto;
}

.image-previews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 0.8rem;
}

.image-preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 6px;
  overflow: hidden;
  border: 2px solid var(--color-border);
}

.image-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-preview-item .remove-single-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  background-color: rgba(0, 0, 0, 0.7);
  border: none;
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.8rem;
  transition: background-color var(--transition-normal);
}

.image-preview-item .remove-single-btn:hover {
  background-color: var(--color-danger);
}

.remove-preview-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background-color: rgba(0, 0, 0, 0.7);
  border: 1px solid var(--color-border);
  color: var(--color-text-bright);
  width: 30px;
  height: 30px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.9rem;
  transition: background-color var(--transition-normal);
}

.remove-preview-btn:hover {
  background-color: var(--color-danger);
  transform: scale(1.1);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.cancel-btn {
  background-color: transparent;
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 0.7rem 1.2rem;
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.cancel-btn:hover {
  background-color: var(--color-bg-input);
  color: var(--color-text-bright);
  border-color: var(--color-primary);
}

.submit-btn {
  background-color: var(--color-primary);
  color: var(--color-text-bright);
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  cursor: pointer;
  transition: background-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-hand-sm);
}

.submit-btn:hover {
  background-color: var(--color-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hand-md);
}

/* Workspace Listing Card & Admin Data Tables */
.workspace-list-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  padding: 1.8rem;
  box-shadow: var(--shadow-hand-sm);
}

.workspace-list-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
}

.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th, 
.data-table td {
  padding: 0.9rem 1rem;
  font-size: 0.9rem;
  border-bottom: 2px solid var(--color-border);
}

.data-table th {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-text-muted);
  background-color: var(--color-bg-input);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background-color: var(--color-bg-input);
}

.empty-table-msg {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Admin Actions Buttons */
.action-btn-row {
  display: flex;
  gap: 0.5rem;
}

.admin-action-btn {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  color: var(--color-text-main);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.85rem;
  transition: all var(--transition-normal);
}

.admin-action-btn.edit:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-text-bright);
  transform: scale(1.1);
}

.admin-action-btn.delete:hover {
  background-color: var(--color-danger);
  border-color: var(--color-danger);
  color: var(--color-text-bright);
  transform: scale(1.1);
}

/* Attendance Setup Card with 65 Grid */
.attendance-setup-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  padding: 1.8rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-hand-sm);
}

.attendance-setup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.8rem;
}

.date-select-group {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.date-select-group label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.date-select-group input {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 6px;
  padding: 0.4rem 0.8rem;
  color: var(--color-text-bright);
  font-family: var(--font-body);
}

.attendance-instruction {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.attendance-batch-actions {
  margin-bottom: 1.2rem;
}

.batch-btn {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  color: var(--color-text-main);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.batch-btn:hover {
  background-color: var(--color-border);
  color: var(--color-text-bright);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

/* 65 Student Grid Styling */
.students-grid-65 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.student-grid-card {
  aspect-ratio: 1 / 1;
  background-color: var(--color-bg-dark);
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-normal);
}

.student-grid-card .roll-num {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-text-muted);
}

.student-grid-card .student-lbl {
  font-size: 0.65rem;
  color: var(--color-text-muted);
  opacity: 0.6;
}

/* Default state: PRESENT */
.student-grid-card.present {
  border: 2px solid var(--color-border);
  background-color: var(--color-bg-input);
}

.student-grid-card.present .roll-num {
  color: var(--color-text-main);
}

/* Absent state: ABSENT */
.student-grid-card.absent {
  border: 2px solid var(--color-danger);
  background-color: rgba(220, 38, 38, 0.1);
  transform: scale(0.95);
}

.student-grid-card.absent .roll-num {
  color: var(--color-danger);
}

.student-grid-card.absent .student-lbl {
  color: var(--color-danger);
}

.attendance-save-block {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  border-top: 2px solid var(--color-border);
  padding-top: 1.2rem;
}

.attendance-summary-info {
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
}

.save-attendance-btn {
  background-color: var(--color-primary);
  color: var(--color-text-bright);
  font-family: var(--font-display);
  font-weight: 700;
  border: none;
  padding: 0.8rem 1.8rem;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: var(--shadow-hand-sm);
  transition: background-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
}

.save-attendance-btn:hover {
  background-color: var(--color-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hand-md);
}

.attendance-logs-table-card {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  padding: 1.8rem;
  box-shadow: var(--shadow-hand-sm);
}

/* ==================== MODALS COMMON STYLING ==================== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(3px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
}

.modal-overlay.active {
  display: flex;
  animation: fadeIn var(--transition-fast);
}

.modal-content {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  width: 100%;
  max-width: 480px;
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-hand-lg);
  animation: modalSlideIn var(--transition-normal);
}

.modal-close-btn {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--color-primary);
  transform: rotate(90deg);
}

.modal-logo-header {
  text-align: center;
  margin-bottom: 2rem;
}

.modal-logo-header img {
  height: 60px;
  margin-bottom: 1rem;
}

.modal-logo-header h3 {
  font-size: 1.4rem;
  margin-bottom: 0.2rem;
}

.modal-logo-header p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Teacher Password Login Phases */
.login-phase {
  display: none;
}

.login-phase.active-phase {
  display: block;
  animation: fadeIn var(--transition-normal);
}

.input-icon-group {
  position: relative;
}

.input-icon-group i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.input-icon-group input {
  width: 100%;
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 6px;
  padding: 0.8rem 1rem 0.8rem 2.8rem;
  color: var(--color-text-bright);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.input-icon-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hand-sm);
}

.login-action-btn {
  width: 100%;
  background-color: var(--color-primary);
  color: var(--color-text-bright);
  border: none;
  padding: 0.8rem;
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  transition: background-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-hand-sm);
}

.login-action-btn:hover {
  background-color: var(--color-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hand-md);
}

.login-nav-btns {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 0.8rem;
  margin-top: 1rem;
}

.login-back-btn {
  background-color: transparent;
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.login-back-btn:hover {
  background-color: var(--color-bg-input);
  color: var(--color-text-bright);
  border-color: var(--color-primary);
}

.login-help-text {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  opacity: 0.5;
  margin-top: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Image Viewer Modal Styles */
.image-viewer-wrapper {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  width: 100%;
  max-width: 900px;
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-hand-lg);
  animation: modalSlideIn var(--transition-normal);
}

.view-close {
  top: 1rem;
  right: 1.5rem;
}

.viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.image-viewer-wrapper h3 {
  font-size: 1.4rem;
  margin: 0;
}

.viewer-meta {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 700;
  text-transform: uppercase;
}

.viewer-main {
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
}

.gallery-nav-btn {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  color: var(--color-text-main);
  width: 45px;
  height: 45px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.2rem;
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

.gallery-nav-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-text-bright);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.gallery-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
}

.viewer-img-container {
  background-color: var(--color-bg-dark);
  border: 2px solid var(--color-border);
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
  max-height: 500px;
  position: relative;
  overflow: hidden;
  flex: 1;
}

.viewer-main-image {
  max-width: 100%;
  max-height: 500px;
  object-fit: contain;
  transition: transform var(--transition-normal);
  cursor: grab;
}

.viewer-main-image:active {
  cursor: grabbing;
}

.viewer-image-counter {
  position: absolute;
  top: 0.8rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.viewer-controls {
  position: absolute;
  bottom: 0.8rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  background-color: rgba(0, 0, 0, 0.7);
  padding: 0.5rem;
  border-radius: 8px;
}

.viewer-control-btn {
  background-color: transparent;
  border: none;
  color: white;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1rem;
  transition: background-color var(--transition-normal);
}

.viewer-control-btn:hover {
  background-color: var(--color-primary);
}

.viewer-thumbnails {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.5rem;
  background-color: var(--color-bg-input);
  border-radius: 8px;
  border: 2px solid var(--color-border);
}

.viewer-thumbnails::-webkit-scrollbar {
  height: 6px;
}

.viewer-thumbnails::-webkit-scrollbar-track {
  background: var(--color-bg-dark);
  border-radius: 3px;
}

.viewer-thumbnails::-webkit-scrollbar-thumb {
  background: var(--color-secondary);
  border-radius: 3px;
}

.thumbnail-item {
  width: 70px;
  height: 70px;
  border-radius: 6px;
  overflow: hidden;
  border: 2px solid var(--color-border);
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-normal);
  position: relative;
}

.thumbnail-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumbnail-item.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.thumbnail-item:hover {
  border-color: var(--color-secondary);
  transform: scale(1.05);
}

.viewer-description {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
}

.viewer-desc {
  font-size: 0.95rem;
  color: var(--color-text-main);
  white-space: pre-line;
}

/* Database Backup & Supabase UI Settings */
.backup-modal-content {
  max-width: 680px;
}

.db-icon-large {
  font-size: 3rem;
  color: var(--color-secondary);
  margin-bottom: 0.8rem;
}

.supabase-config-box {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.supabase-config-box h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-bright);
}

.config-help {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 1.2rem;
  line-height: 1.4;
}

.supabase-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.supabase-status-indicator {
  margin-top: 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  display: inline-block;
  padding: 0.3rem 0.8rem;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: 4px;
}

.supabase-status-indicator.connected {
  background-color: rgba(16, 185, 129, 0.05);
  border-color: var(--color-success);
  color: var(--color-success);
}

.backup-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.backup-card {
  background-color: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
}

.backup-card h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-text-bright);
}

.backup-card p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  flex: 1;
}

.backup-btn-action {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  color: var(--color-text-bright);
  padding: 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all var(--transition-normal);
}

.backup-btn-action.export-btn:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  transform: translateY(-1px);
}

.backup-btn-action.import-btn:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.import-file-wrapper {
  position: relative;
}

.import-file-wrapper input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.danger-zone {
  border-top: 2px solid var(--color-border);
  padding-top: 1.5rem;
}

.danger-zone h4 {
  color: var(--color-danger);
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.danger-zone p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.reset-db-btn {
  background-color: transparent;
  border: 2px solid var(--color-danger);
  color: var(--color-danger);
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-normal);
}

.reset-db-btn:hover {
  background-color: var(--color-danger);
  color: var(--color-text-bright);
  transform: translateY(-1px);
}

.db-action-btn {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-normal);
}

.db-action-btn:hover {
  color: var(--color-text-bright);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

/* Toast Notifications (flat solid border, no glow) */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.toast {
  background-color: var(--color-bg-card);
  border: 2px solid var(--color-border);
  color: var(--color-text-bright);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  box-shadow: var(--shadow-hand-md);
  font-size: 0.9rem;
  min-width: 250px;
  animation: toastSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.success {
  border-left: 6px solid var(--color-success);
}

.toast.success i {
  color: var(--color-success);
}

.toast.error {
  border-left: 6px solid var(--color-danger);
}

.toast.error i {
  color: var(--color-danger);
}

.toast.info {
  border-left: 6px solid var(--color-primary);
}

.toast.info i {
  color: var(--color-primary);
}

/* Footer elements */
.panel-footer {
  text-align: center;
  padding: 2rem;
  margin-top: auto;
  border-top: 2px solid var(--color-border);
  background-color: var(--color-bg-dark);
}

.panel-footer p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Hand-crafted Animations - Natural, human-feeling movements */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0; 
    transform: translateY(20px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

@keyframes modalSlideIn {
  from { 
    opacity: 0; 
    transform: translateY(-10px) scale(0.98); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0) scale(1); 
  }
}

@keyframes toastSlideIn {
  from { 
    transform: translateX(120%); 
  }
  to { 
    transform: translateX(0); 
  }
}

@keyframes slideInRight {
  from { transform: translateX(110%); }
  to { transform: translateX(0); }
}

@keyframes handBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

@keyframes subtlePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .teacher-workspace {
    grid-template-columns: 1fr;
  }
  .attendance-results-grid {
    grid-template-columns: 1fr;
  }
  .chart-card, .history-card {
    grid-column: span 1;
  }
  .panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .panel-meta {
    width: 100%;
    justify-content: space-between;
  }
  .timeline-container::before {
    left: 1rem;
  }
  .timeline-date-marker {
    left: -0.3rem;
  }
  .timeline-items {
    margin-left: 2rem;
  }
  .timeline-item {
    flex-direction: column;
    gap: 1rem;
  }
  .timeline-item::before {
    left: -1.25rem;
  }
}

@media (max-width: 600px) {
  .landing-main-content {
    margin: 1.5rem 0;
  }
  .brand-title {
    font-size: 2.5rem;
  }
  .portal-cards-container {
    gap: 1.5rem;
  }
  .portal-card {
    padding: 1.5rem;
  }
  .panel-nav {
    padding: 0 1rem;
    gap: 0.5rem;
    overflow-x: auto;
  }
  .panel-tab-btn {
    font-size: 0.85rem;
    white-space: nowrap;
  }
  .panel-content {
    padding: 1.5rem 1rem;
  }
  .input-with-button {
    flex-direction: column;
  }
  .accent-btn {
    width: 100%;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .backup-actions {
    grid-template-columns: 1fr;
  }
  .supabase-actions {
    flex-direction: column;
  }
}