/* -------------------------------------- */
/* BASE & TYPOGRAPHY */
/* -------------------------------------- */
:root {
    --color-primary: #4C1D95; /* Deep Purple */
    --color-secondary: #FCD34D; /* Gold Yellow (Accent) */
    --color-alert: #EF4444; /* Red */
    --color-warning: #F59E0B; /* Orange */
    --color-success: #10B981; /* Green */
    --color-text-dark: #1F2937;
    --color-text-light: #E5E7EB;
    --color-background: #F8F8F8;
    --color-card-bg: #FFFFFF;
    
    /* Spacing scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    /* Border radius */
    --border-radius: 8px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 15px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text-dark);
    line-height: 1.6;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* -------------------------------------- */
/* IMPROVED TYPOGRAPHY HIERARCHY */
/* -------------------------------------- */
h1 {
    color: var(--color-primary);
    font-weight: 800;
    font-size: 2.2rem;
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

h2 {
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.8rem;
    margin-bottom: var(--space-md);
}

h3 {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
}

h4 {
    color: var(--color-text-dark);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.subtitle {
    color: #6B7280;
    font-size: 1rem;
    margin-bottom: var(--space-xl);
    line-height: 1.5;
}

/* -------------------------------------- */
/* SCROLL TO TOP BUTTON - FIXED POSITION */
/* -------------------------------------- */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.scroll-to-top:hover {
    background: #5B21B6;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(76, 29, 149, 0.4);
}

.scroll-to-top:active {
    transform: translateY(-1px);
}

/* -------------------------------------- */
/* IMPROVED SIDEBAR NAVIGATION */
/* -------------------------------------- */
.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--color-primary) 0%, #5B21B6 100%);
    color: var(--color-text-light);
    display: flex;
    flex-direction: column;
    padding: var(--space-xl) 0;
    transition: var(--transition);
    position: sticky;
    top: 0;
    left: 0;
    z-index: 1000;
    height: 100vh;
    box-sizing: border-box;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.sidebar-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding: 0 var(--space-lg);
    flex-shrink: 0;
}

.sidebar-header img {
    width: 80px;
    height: 80px;
    margin-bottom: var(--space-md);
    border-radius: 50%;
    border: 3px solid var(--color-secondary);
    padding: 3px;
    background: white;
}

.sidebar-header h2 {
    font-size: 1.3rem;
    margin: 0;
    font-weight: 700;
    color: white;
}

/* Nav Container */
.nav {
    list-style: none;
    padding: 0 var(--space-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.nav li { 
    margin: 0;
}

.nav a {
    color: var(--color-text-light);
    text-decoration: none;
    padding: 14px 16px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav a:hover { 
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.nav a.active {
    background-color: var(--color-secondary);
    color: var(--color-text-dark);
    font-weight: 700;
    box-shadow: var(--shadow);
}

.logout {
    margin-top: auto;
    text-align: center;
    flex-shrink: 0;
    padding: var(--space-lg);
}

.logout a {
    display: block;
    padding: 14px var(--space-lg);
    background-color: var(--color-alert);
    color: #fff;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.logout a:hover { 
    background-color: #DC2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* -------------------------------------- */
/* IMPROVED MAIN CONTENT & HEADER */
/* -------------------------------------- */
.main {
    flex: 1;
    padding: var(--space-xl);
    overflow-y: auto;
    background-color: var(--color-background);
}

/* Welcome Banner */
.welcome-card {
    background: linear-gradient(135deg, #4C1D95, #6D28D9);
    color: white;
    padding: var(--space-xl);
    border-radius: 16px;
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.welcome-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(252, 211, 77, 0.1) 0%, transparent 70%);
}

.welcome-card h2 {
    color: white;
    font-size: 2.2rem;
    font-weight: 800;
    margin: 0;
}

.welcome-card p {
    font-size: 1.1rem;
    font-weight: 300;
    margin-top: var(--space-xs);
    opacity: 0.9;
}

/* Announcement Banner */
#announcement-banner {
    background-color: #FFF7ED;
    color: #92400E;
    border: 1px solid #FED7AA;
    border-left: 6px solid #F97316;
    padding: var(--space-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-xl);
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

#announcement-banner:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.1);
}

#announcement-banner strong {
    font-weight: 700;
    color: #F97316;
    font-size: 1rem;
    display: block;
    margin-bottom: var(--space-xs);
}

.info-icon {
    font-size: 1.8rem;
    color: #F97316;
    line-height: 1;
    flex-shrink: 0;
}

/* -------------------------------------- */
/* IMPROVED CARDS (Quick Snapshot) */
/* -------------------------------------- */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.card {
    background-color: var(--color-card-bg);
    padding: var(--space-xl) var(--space-lg);
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: var(--transition);
    border: 1px solid #E2E8F0;
    text-align: center;
    border-left: 4px solid var(--color-primary);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 150px;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-primary);
}

.card.alert-card {
    border-left-color: var(--color-alert);
    background-color: #FEF2F2;
}

.card.alert-card::before {
    background: var(--color-alert);
}

.card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 8px 25px rgba(0,0,0,0.15); 
}

.card h3 { 
    margin: 0 0 var(--space-md) 0;
    font-size: 1.1rem;
    color: var(--color-primary);
    font-weight: 600;
}

.card p.data {
    font-size: 2.5rem;
    font-weight: 800;
    margin: var(--space-sm) 0;
    color: #064E3B;
    line-height: 1;
}

.card.alert-card p.data {
    color: var(--color-alert);
}

.card small { 
    display: block; 
    color: #6B7280;
    font-size: 0.85rem;
    margin-top: var(--space-xs);
}

/* Dashboard Actions */
#dashboard-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

#dashboard-actions .card {
    border-left-width: 6px;
    cursor: default;
    padding: var(--space-lg);
    height: auto;
    text-align: left;
}

#action-passport { 
    border-left-color: var(--color-alert); 
}

#action-passport::before {
    background: var(--color-alert);
}

.card[style*="#F59E0B"] { 
    border-left-color: var(--color-warning) !important; 
}

.card[style*="#F59E0B"]::before {
    background: var(--color-warning);
}

/* -------------------------------------- */
/* ENHANCED MOBILE-FRIENDLY RESOURCES SECTION */
/* -------------------------------------- */
.resources-header {
    margin-bottom: var(--space-lg);
}

/* Enhanced Resources Controls */
.resources-controls {
    background: var(--color-card-bg);
    padding: var(--space-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: var(--space-lg);
    border-left: 4px solid var(--color-primary);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 15px;
    color: #6B7280;
    z-index: 2;
}

#resource-search {
    width: 100%;
    padding: 12px 45px 12px 45px;
    border: 2px solid #E5E7EB;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    transition: var(--transition);
    background: white;
}

#resource-search:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(76, 29, 149, 0.1);
}

.filter-group {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.filter-group select {
    padding: 10px 12px;
    border: 1px solid #D1D5DB;
    border-radius: var(--border-radius);
    background: white;
    font-size: 0.9rem;
    min-width: 150px;
    transition: var(--transition);
    flex: 1;
}

.filter-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(76, 29, 149, 0.1);
}

/* Mobile-First Resources Grid */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

/* Enhanced Resource Cards */
.resource-card {
    background-color: var(--color-card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid #E2E8F0;
}

.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.card-header {
    padding: var(--space-lg);
    border-bottom: 1px solid #E5E7EB;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: #F8FAFC;
}

.file-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.file-icon.pdf { background: #FEE2E2; color: #DC2626; }
.file-icon.doc { background: #DBEAFE; color: #1D4ED8; }
.file-icon.slides { background: #FEF3C7; color: #D97706; }
.file-icon.video { background: #E0E7FF; color: #3730A3; }
.file-icon.image { background: #FCE7F3; color: #BE185D; }
.file-icon.file { background: #F3F4F6; color: #6B7280; }

.card-title {
    flex: 1;
    min-width: 0;
}

.card-title h3 {
    margin: 0 0 var(--space-xs) 0;
    font-size: 1.1rem;
    color: var(--color-text-dark);
    font-weight: 700;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.file-type {
    font-size: 0.8rem;
    color: #6B7280;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.card-body {
    padding: var(--space-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.card-description {
    color: #6B7280;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.card-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: #6B7280;
}

.meta-item i {
    font-size: 0.8rem;
    width: 16px;
    text-align: center;
}

.card-footer {
    padding: var(--space-lg);
    background: #F8FAFC;
    border-top: 1px solid #E5E7EB;
    display: flex;
    gap: var(--space-sm);
}

.card-btn {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.card-btn.primary {
    background: var(--color-primary);
    color: white;
}

.card-btn.primary:hover {
    background: #5B21B6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76, 29, 149, 0.3);
}

/* -------------------------------------- */
/* ENHANCED MOBILE PDF/DOCUMENT VIEWER */
/* -------------------------------------- */
.mobile-reader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    z-index: 2000;
    display: flex;
    flex-direction: column;
}

.reader-header {
    background: var(--color-primary);
    color: white;
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 10;
    flex-shrink: 0;
}

.reader-back {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
    flex-shrink: 0;
}

.reader-back:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.reader-header h3 {
    color: white;
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    flex: 1;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.view-only-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.reader-content {
    flex: 1;
    overflow-y: auto;
    background: #F8FAFC;
    display: flex;
    flex-direction: column;
}

/* Enhanced PDF Mobile Viewer */
.pdf-mobile-viewer {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.view-only-notice {
    background: #FFFBEB;
    border: 1px solid #FCD34D;
    padding: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    font-weight: 600;
    color: #92400E;
    flex-shrink: 0;
}

.view-only-notice i {
    color: #F59E0B;
}

.pdf-container-mobile {
    flex: 1;
    overflow: auto;
    background: white;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: var(--space-lg);
    min-height: 60vh;
}

#pdf-canvas-mobile {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    background: white;
}

/* PDF NAVIGATION CONTROLS */
.pdf-controls-mobile {
    background: white;
    padding: var(--space-lg);
    border-top: 1px solid #E5E7EB;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
}

.pdf-nav-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.3rem;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(76, 29, 149, 0.3);
    min-width: 44px;
    min-height: 44px;
}

.pdf-nav-btn:hover:not(:disabled) {
    background: #5B21B6;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 29, 149, 0.4);
}

.pdf-nav-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(76, 29, 149, 0.3);
}

.pdf-nav-btn:disabled {
    background: #9CA3AF;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.pdf-page-info {
    background: #F8FAFC;
    padding: 12px 20px;
    border-radius: 25px;
    font-weight: 700;
    color: var(--color-primary);
    min-width: 120px;
    text-align: center;
    font-size: 1rem;
    border: 2px solid #E5E7EB;
}

/* Enhanced Office Viewer */
.office-viewer {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow);
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.viewer-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.viewer-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
}

.view-only-message {
    color: #6B7280;
    font-size: 0.9rem;
    font-style: italic;
    margin-top: var(--space-md);
    text-align: center;
}

/* Video Viewer */
.video-viewer {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    flex: 1;
}

.video-viewer video {
    width: 100%;
    max-height: 70vh;
    border-radius: var(--border-radius);
    background: #000;
}

/* Fallback Viewer */
.fallback-viewer {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow);
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-xl);
    color: #6B7280;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    color: #D1D5DB;
}

.empty-state h3 {
    color: #6B7280;
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: #9CA3AF;
    font-size: 0.95rem;
}

/* -------------------------------------- */
/* IMPROVED GENERAL COMPONENTS */
/* -------------------------------------- */
.tab-content { 
    display: none; 
    animation: fadeIn 0.5s ease;
}

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

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

/* Improved Tables */
table { 
    width: 100%; 
    border-collapse: separate;
    border-spacing: 0;
    margin-bottom: var(--space-xl); 
    background-color: var(--color-card-bg);
    border-radius: var(--border-radius); 
    overflow: hidden;
    box-shadow: var(--shadow);
}

th, td { 
    padding: 16px 20px; 
    border-bottom: 1px solid #E5E7EB; 
    text-align: left; 
    font-size: 0.9rem;
}

th { 
    background-color: #F8FAFC; 
    color: var(--color-text-dark);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tr:hover { 
    background-color: #F8FAFC; 
}

tr:last-child td {
    border-bottom: none;
}

/* Calendar Specific Styles */
#calendar-table th.session-type-col { width: 15%; }
#calendar-table th.date-col { width: 15%; }
#calendar-table td.Clinical { background-color: #f0f9ff; }
#calendar-table td.Class { background-color: #f0fff4; }
#calendar-table td.Exam { background-color: #fff7ed; border: 1px dashed var(--color-warning); font-weight: 600; }

/* Improved Forms */
form input, form select, form button, form textarea {
    padding: 12px 16px; 
    margin: var(--space-xs) var(--space-xs) var(--space-sm) 0; 
    border-radius: var(--border-radius); 
    border: 1px solid #D1D5DB;
    box-sizing: border-box; 
    min-width: 150px;
    font-size: 0.95rem;
    transition: var(--transition);
}

form input:focus, form select:focus, form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(76, 29, 149, 0.1);
}

form textarea { 
    width: 100%; 
    min-height: 120px; 
    margin: var(--space-sm) 0; 
    resize: vertical;
    font-family: 'Inter', sans-serif;
}

form button { 
    background-color: var(--color-primary); 
    color: #fff; 
    cursor: pointer;
    border: none;
    font-weight: 600;
    padding: 12px 24px;
    transition: var(--transition);
}

form button:hover { 
    background-color: #5B21B6;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(76, 29, 149, 0.3);
}

/* -------------------------------------- */
/* IMPROVED PROFILE STYLING */
/* -------------------------------------- */
#profile-form {
    background-color: var(--color-card-bg);
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--color-primary);
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.profile-media {
    text-align: center;
    padding: var(--space-lg) 0;
    position: sticky;
    top: var(--space-xl);
}

#passport-preview {
    width: 160px;
    height: 160px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--color-primary);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    margin-bottom: var(--space-lg);
    transition: var(--transition);
}

#passport-preview:hover {
    transform: scale(1.05);
}

.profile-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.form-field.full-width { 
    grid-column: 1 / 3; 
}

.form-field label { 
    display: block; 
    font-weight: 600; 
    margin-bottom: var(--space-xs); 
    color: var(--color-primary);
    font-size: 0.9rem;
}

.form-field input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #D1D5DB;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    transition: var(--transition);
    background-color: white;
}

.form-field input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(76, 29, 149, 0.1);
}

.form-field input[readonly] { 
    background-color: #F9FAFB; 
    color: #6B7280;
    border-color: #E5E7EB;
    cursor: not-allowed;
}

.profile-button {
    background-color: var(--color-primary); 
    color: white;
    padding: 14px 28px;
    border-radius: var(--border-radius);
    margin-top: var(--space-md);
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.profile-button:hover {
    background-color: #5B21B6;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 29, 149, 0.3);
}

/* -------------------------------------- */
/* IMPROVED CHECK-IN CONTROLS */
/* -------------------------------------- */
.check-in-controls {
    background-color: var(--color-card-bg);
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--color-primary);
    margin-bottom: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.control-group label {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 0.95rem;
}

.check-in-controls button { 
    background-color: var(--color-success);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    margin-top: var(--space-sm);
}

.check-in-controls button:hover { 
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}

.check-in-controls button:disabled {
    background-color: #9CA3AF;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* -------------------------------------- */
/* IMPROVED MOBILE NAV HEADER & TOGGLE */
/* -------------------------------------- */
.mobile-header {
    display: none;
    background: linear-gradient(135deg, var(--color-primary), #5B21B6);
    color: white;
    padding: 12px 16px;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    width: 100%;
    box-sizing: border-box;
    z-index: 1010;
    box-shadow: var(--shadow);
}

.menu-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: var(--transition);
}

.menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Profile photo in the header */
.header-profile-photo {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-secondary);
    margin-left: var(--space-sm);
    transition: var(--transition);
}

.header-profile-photo:hover {
    transform: scale(1.1);
}

/* Style for the text container */
.header-title-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex: 1;
    justify-content: flex-end;
}

.header-title-container span {
    font-weight: 600;
    font-size: 0.95rem;
}

/* -------------------------------------- */
/* IMPROVED LOADING AND ERROR STATES */
/* -------------------------------------- */
.loading-state {
    color: #6B7280;
    font-style: italic;
    text-align: center;
    padding: var(--space-xl);
    font-size: 0.95rem;
}

.error-state {
    background-color: #FEF2F2;
    border: 1px solid #FECACA;
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    color: var(--color-alert);
    text-align: center;
    font-weight: 500;
    box-shadow: var(--shadow);
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 4px;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Toast notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    border-radius: var(--border-radius);
    color: white;
    z-index: 10000;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 400px;
}

.toast.success { background-color: var(--color-success); }
.toast.error { background-color: var(--color-alert); }
.toast.warning { background-color: var(--color-warning); }
.toast.info { background-color: var(--color-primary); }

/* -------------------------------------- */
/* UTILITY CLASSES */
/* -------------------------------------- */
.text-center { text-align: center; }
.flex { display: flex; }
.flex-center { 
    display: flex; 
    align-items: center; 
    justify-content: center;
}
.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.p-1 { padding: var(--space-sm); }
.p-2 { padding: var(--space-md); }

/* -------------------------------------- */
/* RESPONSIVE ADJUSTMENTS */
/* -------------------------------------- */

/* Tablet Optimization */
@media (max-width: 1024px) and (min-width: 769px) {
    .pdf-controls-mobile {
        gap: var(--space-xl);
    }
    
    .pdf-nav-btn {
        width: 65px;
        height: 65px;
        font-size: 1.4rem;
    }
    
    .pdf-page-info {
        padding: 14px 24px;
        min-width: 140px;
        font-size: 1.1rem;
    }
    
    .sidebar {
        width: 260px;
    }
    
    .cards {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
    
    #profile-form {
        grid-template-columns: 200px 1fr;
        gap: var(--space-lg);
    }
    
    .resources-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--space-md);
    }
}

/* Mobile Devices */
@media (max-width: 768px) {
    /* PDF Navigation for Mobile */
    .pdf-controls-mobile {
        padding: var(--space-md);
        gap: var(--space-lg);
        position: sticky;
        bottom: 0;
        background: white;
        z-index: 5;
    }
    
    .pdf-nav-btn {
        width: 55px;
        height: 55px;
        font-size: 1.2rem;
    }
    
    .pdf-page-info {
        padding: 10px 16px;
        min-width: 100px;
        font-size: 0.9rem;
    }
    
    .pdf-container-mobile {
        padding: var(--space-md);
        padding-bottom: var(--space-lg);
        min-height: 65vh;
    }
    
    /* Enhanced Mobile PDF Viewer */
    .mobile-reader {
        height: 100vh;
    }
    
    .reader-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        padding: 0;
    }
    
    .pdf-mobile-viewer {
        height: 100%;
    }
    
    .pdf-container-mobile {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 60vh;
    }
    
    #pdf-canvas-mobile {
        max-width: 100%;
        max-height: 100%;
        width: auto;
        height: auto;
    }
    
    /* Compact header */
    .reader-header {
        padding: var(--space-md);
        min-height: 60px;
    }
    
    .reader-header h3 {
        font-size: 1.1rem;
    }
    
    /* View-only notice - compact */
    .view-only-notice {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.85rem;
    }
    
    /* Scroll to Top Button Mobile */
    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
    
    /* Main Layout */
    .container { 
        flex-direction: column; 
    }
    
    .mobile-header { 
        display: flex; 
    }
    
    /* Sidebar Mobile Overlay */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 85%;
        height: 100%;
        transform: translateX(-100%); 
        transition: transform 0.3s ease-in-out;
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
        overflow-y: auto;
        padding-bottom: 20px;
        z-index: 1005;
    }
    
    .sidebar.open { 
        transform: translateX(0); 
    }
    
    .overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        backdrop-filter: blur(2px);
    }
    
    .overlay.active { 
        display: block; 
    }
    
    .sidebar-header {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        gap: var(--space-md);
        margin-bottom: var(--space-lg);
        padding: 15px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        flex-shrink: 0;
    }
    
    .sidebar-header img { 
        width: 50px; 
        height: 50px;
        margin-bottom: 0; 
    }
    
    .sidebar-header h2 { 
        font-size: 1.2rem; 
    }
    
    .nav { 
        display: flex; 
        flex-direction: column; 
        padding: 0 15px; 
        gap: 6px;
    }
    
    .nav a {
        padding: 14px 15px;
        font-size: 0.9rem;
    }
    
    .logout { 
        display: block; 
        margin-top: 15px; 
        flex-shrink: 0; 
        padding: 0 15px; 
    }
    
    .main { 
        padding: var(--space-lg); 
    }
    
    /* Improved Mobile Cards */
    .cards { 
        grid-template-columns: 1fr; 
        gap: var(--space-md); 
        margin-bottom: var(--space-lg); 
    }
    
    .card { 
        padding: var(--space-lg); 
        min-height: 130px;
    }
    
    .card h3 { 
        font-size: 1rem; 
    }
    
    .card p.data { 
        font-size: 2rem; 
    }
    
    #dashboard-actions { 
        grid-template-columns: 1fr; 
        gap: var(--space-md);
    }
    
    /* Profile/Form refinement */
    #profile-form { 
        grid-template-columns: 1fr; 
        padding: var(--space-lg); 
        gap: var(--space-lg); 
    }
    
    .profile-details { 
        grid-template-columns: 1fr; 
        gap: var(--space-md); 
    }
    
    .profile-media { 
        width: 100%; 
        position: static;
        text-align: center;
    }
    
    .form-field.full-width { 
        grid-column: 1; 
    }

    /* Table improvements */
    table {
        font-size: 0.85rem;
    }
    
    th, td {
        padding: 12px 10px;
    }

    /* Enhanced Mobile Resources */
    .resources-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .resources-controls {
        padding: var(--space-md);
    }
    
    .filter-group {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .filter-group select {
        min-width: 100%;
    }
    
    .resource-card {
        margin-bottom: var(--space-sm);
    }
    
    .card-header {
        padding: var(--space-md);
    }
    
    .card-body {
        padding: var(--space-md);
    }
    
    .card-footer {
        padding: var(--space-md);
        flex-direction: column;
    }
    
    .card-btn {
        width: 100%;
    }
    
    /* Mobile Reader Optimizations */
    .reader-header {
        padding: var(--space-md);
    }
    
    .reader-header h3 {
        font-size: 1.1rem;
    }
    
    .reader-content {
        padding: var(--space-md);
    }
    
    .office-viewer,
    .fallback-viewer {
        padding: var(--space-lg);
    }
    
    .viewer-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .viewer-actions .profile-button {
        width: 100%;
        justify-content: center;
    }

    /* Mobile header adjustments */
    .mobile-header span {
        font-size: 0.9rem;
        font-weight: 600;
    }

    .header-title-container {
        justify-content: flex-end;
    }
    
    /* Welcome card adjustments */
    .welcome-card {
        padding: var(--space-lg);
    }
    
    .welcome-card h2 {
        font-size: 1.8rem;
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    /* Small Screen PDF Navigation */
    .pdf-controls-mobile {
        padding: var(--space-sm) var(--space-md);
        gap: var(--space-md);
    }
    
    .pdf-nav-btn {
        width: 50px;
        height: 50px;
        font-size: 1.1rem;
    }
    
    .pdf-page-info {
        padding: 8px 14px;
        min-width: 90px;
        font-size: 0.85rem;
    }
    
    .pdf-container-mobile {
        padding: var(--space-sm);
        padding-bottom: var(--space-md);
        min-height: 70vh;
    }
    
    #pdf-canvas-mobile {
        max-width: 95%;
        max-height: 95%;
    }
    
    /* Scroll to Top Button Small Screens */
    .scroll-to-top {
        bottom: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }
    
    .mobile-header span {
        font-size: 0.85rem;
    }
    
    .header-profile-photo {
        width: 40px;
        height: 40px;
    }
    
    .main {
        padding: var(--space-md);
    }
    
    .cards { 
        grid-template-columns: 1fr; 
        gap: var(--space-sm);
    }
    
    .card {
        padding: var(--space-md);
        min-height: 120px;
    }
    
    .card p.data {
        font-size: 1.8rem;
    }
    
    /* Small Screen Resources */
    .resources-grid {
        gap: var(--space-sm);
    }
    
    .resource-card {
        margin-bottom: var(--space-sm);
    }
    
    .card-header {
        padding: var(--space-sm) var(--space-md);
    }
    
    .file-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .card-title h3 {
        font-size: 1rem;
    }
    
    .card-body {
        padding: var(--space-md);
    }
    
    .card-meta {
        gap: var(--space-xs);
    }
    
    .meta-item {
        font-size: 0.8rem;
    }
    
    .card-footer {
        padding: var(--space-md);
    }
    
    .card-btn {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
    
    /* Mobile Reader Small Screens */
    .reader-header {
        padding: var(--space-sm) var(--space-md);
    }
    
    .reader-header h3 {
        font-size: 1rem;
    }
    
    .reader-back {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
    
    .view-only-badge {
        font-size: 0.75rem;
        padding: 4px 8px;
    }
    
    .view-only-notice {
        padding: var(--space-sm);
        font-size: 0.85rem;
    }
    
    /* Profile small screens */
    #profile-form {
        padding: var(--space-md);
    }
    
    .welcome-card {
        padding: var(--space-md);
    }
    
    .welcome-card h2 {
        font-size: 1.6rem;
    }
    
    th, td {
        padding: 10px 8px;
        font-size: 0.8rem;
    }
}

/* Landscape Mobile Optimization */
@media (max-width: 768px) and (orientation: landscape) {
    .pdf-controls-mobile {
        padding: var(--space-sm) var(--space-md);
    }
    
    .pdf-nav-btn {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
    
    .pdf-page-info {
        padding: 6px 12px;
        min-width: 80px;
        font-size: 0.8rem;
    }
    
    .pdf-container-mobile {
        padding: var(--space-sm);
        padding-bottom: var(--space-md);
        min-height: 75vh;
    }
    
    .reader-header {
        padding: var(--space-sm) var(--space-md);
        min-height: 50px;
    }
    
    .reader-header h3 {
        font-size: 1rem;
    }
    
    .view-only-notice {
        padding: 8px var(--space-md);
        font-size: 0.8rem;
    }
    
    .scroll-to-top {
        bottom: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .resources-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

/* High-resolution mobile devices */
@media (max-width: 768px) and (min-resolution: 2dppx) {
    .resource-card {
        border-left-width: 3px;
    }
    
    .file-icon {
        border-radius: 8px;
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .mobile-header,
    .logout,
    .check-in-controls button,
    .resources-controls,
    .card-footer,
    .scroll-to-top {
        display: none !important;
    }
    
    .main {
        margin: 0;
        padding: 0;
    }
    
    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .resource-card {
        box-shadow: none;
        border: 1px solid #ccc;
        margin-bottom: 10px;
    }
    
    .mobile-reader {
        position: static;
        height: auto;
    }
    
    .reader-header {
        display: none;
    }
    
    .reader-content {
        padding: 0;
    }
    
    .pdf-controls-mobile,
    .view-only-notice {
        display: none;
    }
}

/* Maximum display mode - nearly full screen */
.pdf-maximized .pdf-container-mobile {
    min-height: 80vh !important;
    padding: var(--space-sm) !important;
}

.pdf-maximized .reader-header {
    min-height: 50px !important;
    padding: var(--space-sm) !important;
}

.pdf-maximized .view-only-notice {
    display: none !important;
}

.pdf-maximized .pdf-controls-mobile {
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px) !important;
}