:root {
    /* Color System */
    --color-beige-light: #faf7f2;
    --color-beige-dark: #e5e0d8;
    --color-mint-lighter: #aeccbc;
    --color-mint-light: #89ad9b;
    --color-mint: #7ea290;
    --color-mint-dark: #5c7c6c;
    --color-gray-light: #666;
    --color-gray-dark: #333;
    --color-white: #fff;
    --color-red: #e53e3e;        /* Example: A nice red */
    --color-red-light: #fef2f2;  /* Example: A very light red, almost white */
    --color-orange: #f59e0b;
    --color-blue: #3b82f6;

    /* Gradients */
    --gradient-mint: linear-gradient(135deg, var(--color-mint), var(--color-mint-light));
    --gradient-mint-light: linear-gradient(135deg, var(--color-mint-light), var(--color-mint-lighter));
    --gradient-mint-fade: linear-gradient(135deg, rgba(126, 162, 144, 0.05), rgba(174, 204, 188, 0.05));

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(126, 162, 144, 0.1);
    --shadow-md: 0 4px 15px rgba(126, 162, 144, 0.2);
    --shadow-lg: 0 8px 25px rgba(126, 162, 144, 0.3);

    /* Typography */
    --font-family: 'Roboto', sans-serif;
    --font-size-sm: 0.9rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.2rem;
    --font-size-xl: 1.5rem;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;

    /* Border Radius */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 15px;
    --radius-full: 50%;

    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.2s ease;
}

/* Base Styles */
body, head {
    font-family: var(--font-family);
}

/* Add bottom padding to main container to prevent floating button overlap */
.container {
    padding-bottom: 80px; /* Space for floating button */
}

@media (max-width: 768px) {
    .container {
        padding-bottom: 70px;
    }
}

@media (max-width: 480px) {
    .container {
        padding-bottom: 60px;
    }
}

/* Navbar Styles */
.navbar {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-beige-light) !important;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-mint) !important;
    letter-spacing: 1px;
    transition: var(--transition-base);
}

.navbar-brand:hover {
    color: var(--color-mint-light) !important;
    transform: translateY(-2px);
}

.navbar-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

/* Navigation items */
.nav-item {
    margin: 0 var(--space-sm);
    transform: translateY(0);
    transition: var(--transition-base);
    animation: navItemFadeIn 0.6s ease-out forwards;
    animation-delay: calc(var(--item-index) * 0.1s);
}

.nav-item .nav-link {
    background: var(--gradient-mint);
    color: var(--color-white) !important;
    padding: var(--space-sm) var(--space-md) !important;
    border-radius: var(--radius-md);
    font-weight: 500;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
    text-transform: uppercase;
    font-size: var(--font-size-sm);
}

/* Hover effects */
.nav-item:hover {
    transform: translateY(-3px);
}

.nav-item .nav-link:hover {
    background: var(--gradient-mint-light);
    box-shadow: var(--shadow-md);
}

/* ✅ Mobile responsive adjustments */
@media (max-width: 600px) {
    .nav-item {
        margin: 0 4px;
    }

    .nav-item .nav-link {
        padding: 6px 10px !important;
        font-size: 12px;
        letter-spacing: 0.3px;
        border-radius: 6px;
    }

    .username-display {
        font-size: 12px;
        padding: 6px 8px;
    }

    .nav-item .nav-link i {
        margin-right: 4px;
        font-size: 14px;
    }
}


/* Course Cards */
.courses-grid {
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.course-card {
    min-height: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--color-beige-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    border: 1px solid rgba(126, 162, 144, 0.1);
    cursor: pointer;
    position: relative;
    padding-bottom: var(--space-xs);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.course-header {
    background: var(--gradient-mint);
    padding: var(--space-sm);
    color: var(--color-beige-light);
    position: relative;
}

/* Enhanced Selection Styles */
.course-card.selected {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 35px rgba(126, 162, 144, 0.4), 
                0 4px 15px rgba(126, 162, 144, 0.3);
    border: 3px solid var(--color-mint);
    background: linear-gradient(135deg, #f0f9f4, #e8f5e8);
    animation: selectPulse 0.3s ease-out;
}

.course-card.selected .course-header {
    background: linear-gradient(135deg, var(--color-mint), var(--color-mint-light));
    box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.2);
}

.course-card.selected .course-body {
    background: linear-gradient(135deg, #f0f9f4, #e8f5e8);
}

/* Selection Checkmark */
.course-card.selected::before {
    content: '✓';
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--color-mint);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(126, 162, 144, 0.4);
    animation: checkmarkAppear 0.4s ease-out;
}

/* Selection Glow Effect */
.course-card.selected::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--color-mint), var(--color-mint-light), var(--color-mint), var(--color-mint-light));
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.6;
    animation: glowPulse 2s ease-in-out infinite;
}

/* Hover state for selected cards */
.course-card.selected:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 15px 40px rgba(126, 162, 144, 0.5), 
                0 6px 20px rgba(126, 162, 144, 0.4);
}

/* Selection Counter Badge */
.selection-info {
    position: fixed;
    bottom: 70px;
    right: 20px;
    background: var(--gradient-mint);
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    z-index: 1000;
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition-base);
}

.selection-info.visible {
    transform: translateY(0);
    opacity: 1;
}

/* Animations */
@keyframes selectPulse {
    0% {
        transform: translateY(-5px) scale(1);
    }
    50% {
        transform: translateY(-8px) scale(1.05);
    }
    100% {
        transform: translateY(-8px) scale(1.02);
    }
}

@keyframes checkmarkAppear {
    0% {
        transform: scale(0) rotate(-180deg);
        opacity: 0;
    }
    60% {
        transform: scale(1.2) rotate(10deg);
        opacity: 1;
    }
    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.02);
    }
}

/* Improved hover states for better feedback */
.course-card:not(.selected):hover {
    transform: translateY(-4px);
}

.course-card:not(.selected):hover .course-header {
    background: var(--gradient-mint-light);
}

/* Course Content */
.course-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    letter-spacing: 0.2px;
}

.course-time {
    font-size: 0.9rem;
    opacity: 0.9;
}

.course-body {
    padding: var(--space-sm);
    background: var(--color-beige-light);
}

.course-location, .course-spots, .course-status, .courseIDs {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-xs);
    color: var(--color-gray-dark);
}

/* Date Picker Container Layout */
.date-picker-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-md);
    background: var(--gradient-mint-fade);
    border: 2px solid rgba(126, 162, 144, 0.3);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    position: relative;
    overflow: hidden;
}

/* Form with date picker */
#date-form {
    display: flex;
    align-items: center;
    flex: 1;
    margin: 0;
    gap: var(--space-sm);
    min-width: 0; /* Prevent flex item from overflowing */
}

/* Input container */
.date-picker-container .form-group {
    display: flex;
    align-items: center;
    margin: 0;
    flex: 1;
    min-width: 0; /* Prevent flex item from overflowing */
}

/* Label styling */
.date-picker-container label {
    white-space: nowrap;
    margin-right: var(--space-sm);
    margin-bottom: 0;
    font-weight: 600;
    color: var(--color-mint-dark);
    flex-shrink: 0; /* Prevent label from shrinking */
}

/* Date input */
.date-picker-container input[type="date"] {
    flex: 1;
    border: 2px solid rgba(126, 162, 144, 0.3);
    border-radius: var(--radius-sm);
    padding: var(--space-sm);
    background: var(--color-white);
    font-weight: 500;
    min-width: 0; /* Allow input to shrink */
}

/* Floating Save Button */
#save-selection {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(126, 162, 144, 0.3);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    font-size: 0.9rem;
    min-height: 56px;
    background: var(--gradient-mint);
    color: var(--color-white);
    border: none;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

#save-selection:hover {
    background: var(--gradient-mint-light);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(126, 162, 144, 0.4);
    color: var(--color-white);
    text-decoration: none;
}

#save-selection:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(126, 162, 144, 0.3);
}

#save-selection:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(126, 162, 144, 0.3), 0 4px 20px rgba(126, 162, 144, 0.3);
}

/* Add a subtle animation when the page loads */
@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#save-selection {
    animation: floatIn 0.6s ease-out;
}

/* Responsive adjustments for floating save button */
@media (max-width: 768px) {
    #save-selection {
        bottom: 15px;
        right: 15px;
        padding: 0.8rem 1.2rem;
        font-size: 0.85rem;
        min-height: 52px;
    }
}

@media (max-width: 480px) {
    #save-selection {
        bottom: 10px;
        right: 10px;
        padding: 0.7rem 1rem;
        font-size: 0.8rem;
        min-height: 48px;
        border-radius: var(--radius-sm);
    }
}

/* Responsive adjustments for date picker */
@media (max-width: 768px) {
    .date-picker-container {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-sm);
    }
    
    #date-form {
        margin-bottom: var(--space-sm);
        flex-direction: column;
        align-items: stretch;
    }
    
    .date-picker-container .form-group {
        margin-bottom: var(--space-sm);
    }
    
    .date-picker-container label {
        margin-bottom: 0.5rem;
        display: block;
    }
}

/* Date Picker */
.date-picker-container {
    background: var(--gradient-mint-fade);
    border: 2px solid rgba(126, 162, 144, 0.3);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.date-picker-container input[type="date"] {
    border: 2px solid rgba(126, 162, 144, 0.3);
    border-radius: var(--radius-sm);
    padding: var(--space-sm);
    background: var(--color-white);
}

.date-picker-container .btn-primary {
    background: var(--gradient-mint);
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

/* Animations */
@keyframes navItemFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes popIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Form Elements */
.form-group {
    margin: var(--space-md);
}

.btn-primary {
    margin: var(--space-xs);
    background: var(--gradient-mint);
    color: var(--color-white);
    border: none;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}
#abort_booking {
    background: var(--color-red);
    color: var(--color-red-light);
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

#login_prompt {
    background: var(--gradient-mint-fade);
    border: 2px solid var(--color-mint);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin: var(--space-lg) auto;
    max-width: 600px;
    text-align: center;
    color: var(--color-mint-dark);
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

#login_prompt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-mint);
    opacity: 0.7;
}

#login_prompt:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

#login_prompt::after {
    content: '🔐';
    display: block;
    font-size: var(--font-size-xl);
    margin-top: var(--space-sm);
    animation: popIn 0.6s ease-out forwards;
}

#USC_logo {
    display: block;
    width: auto;
    height: 150px;
    margin: var(--space-xl) auto;
    filter: drop-shadow(0 4px 8px rgba(126, 162, 144, 0.2));
    transition: var(--transition-base);
    animation: logoAppear 1s ease-out forwards;
}

#USC_logo:hover {
    transform: scale(1.05) translateY(-5px);
    filter: drop-shadow(0 8px 16px rgba(126, 162, 144, 0.3));
}

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

.course-card.status-pending {
    background: #f8f9fa !important;
    border-color: #dee2e6 !important;
}

.course-card.status-pending .course-header {
    background: linear-gradient(135deg, #6c757d, #868e96) !important;
}

.course-card.status-waitlist {
    background: #fff8e1 !important;
    border-color: #ffc107 !important;
}

.course-card.status-waitlist .course-header {
    background: linear-gradient(135deg, #ffc107, #ffcd39) !important;
}

.course-card.status-booked {
    background: #f0fff4 !important;
    border-color: #22c55e !important;
}

.course-card.status-booked .course-header {
    background: linear-gradient(135deg, #22c55e, #34d570) !important;
}

.sync-info {
    border-left: 4px solid var(--color-mint);
    background: linear-gradient(135deg, rgba(126, 162, 144, 0.05), rgba(174, 204, 188, 0.05)) !important;
}

.course-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

.usc-logo-circle {
    background: var(--color-beige-light);
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(126, 162, 144, 0.18), 0 1.5px 4px rgba(126, 162, 144, 0.10);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-right: 12px;
    transition: box-shadow 0.3s, transform 0.3s;
    z-index: 2;
    position: relative;
}

.navbar-logo-modern {
    width: 36px;
    height: 36px;
    background: var(--color-beige-light);
    border-radius: 50%;
    object-fit: contain;
    filter: drop-shadow(0 2px 6px rgba(126, 162, 144, 0.12));
    transition: transform 0.3s;
}

.usc-logo-circle:hover {
    box-shadow: 0 8px 32px rgba(126, 162, 144, 0.28), 0 3px 8px rgba(126, 162, 144, 0.18);
    transform: scale(1.08) rotate(-6deg);
}

.usc-navbar-brand-modern {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-mint-dark) !important;
    letter-spacing: 2px;
    margin-left: 0px;
    z-index: 1;
    position: relative;
    text-shadow: 0 2px 8px rgba(126, 162, 144, 0.08);
    transition: color 0.3s, text-shadow 0.3s;
}

.usc-navbar-brand-modern:hover {
    color: var(--color-mint) !important;
    text-shadow: 0 4px 16px rgba(126, 162, 144, 0.18);
}

/* Universal box-sizing for consistency */
*, *::before, *::after {
    box-sizing: border-box;
}

/* Button group for actions */
.usc-btn-group {
    display: flex;
    gap: 0;
    justify-content: center;
    margin-bottom: 0.2rem;
    margin-top: 0.2rem;
}

/* Hero section background */
.usc-hero-bg {
    background: linear-gradient(135deg, var(--color-mint-light) 0%, var(--color-beige-light) 100%);
    min-height: 100vh;
    width: 100vw;
    padding-top: 0;
    padding-bottom: 0;
}

.usc-hero-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(126, 162, 144, 0.18), 0 3px 8px rgba(126, 162, 144, 0.10);
    max-width: 480px;
    margin: 0 auto;
    padding: 2.5rem 2rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.usc-hero-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-mint-dark);
    letter-spacing: 1.5px;
    margin-bottom: 1rem;
}

.usc-hero-desc {
    font-size: 1.15rem;
    color: var(--color-gray-dark);
    margin-bottom: 2rem;
}

.usc-cta-btn {
    font-size: 1.15rem;
    padding: 0.75rem 2.5rem;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(126, 162, 144, 0.10);
    font-weight: 600;
    letter-spacing: 1px;
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.usc-cta-btn:hover {
    background: var(--color-mint-dark);
    color: var(--color-white);
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 6px 24px rgba(126, 162, 144, 0.18);
}

.no-courses-message a:hover {
    color: var(--color-mint-dark);
    text-decoration: underline;
}

/* Venue Management Styles */
.venue-management-section {
    background: var(--gradient-mint-fade);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.venue-management-section .card {
    border: 2px solid rgba(126, 162, 144, 0.2);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    background: var(--color-white);
}

.venue-management-section .card:hover {
    border-color: var(--color-mint-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.venue-management-section .card-header {
    background: var(--gradient-mint);
    border-bottom: none;
    font-weight: 600;
    color: var(--color-white);
    text-align: center;
}

.favorite-venue-item {
    background: var(--color-beige-light);
    border: 1px solid rgba(126, 162, 144, 0.2);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    transition: var(--transition-fast);
    margin-bottom: 0.5rem;
}

.favorite-venue-item:hover {
    background: var(--color-beige-dark);
    border-color: var(--color-mint-light);
    transform: translateX(5px);
}

.favorite-venue-item span {
    font-weight: 500;
    color: var(--color-mint-dark);
}

.remove-favorite-btn {
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 2px solid transparent;
    transition: var(--transition-fast);
}

.remove-favorite-btn:hover {
    transform: scale(1.15);
    border-color: #dc3545;
    background-color: #dc3545;
    color: white;
}

#venue-selector {
    min-height: 120px;
    border: 2px solid rgba(126, 162, 144, 0.2);
    border-radius: var(--radius-sm);
}

.venue-quick-actions {
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    border: 2px solid rgba(126, 162, 144, 0.1);
}

.venue-quick-actions button {
    margin: 0 var(--space-sm);
    transition: var(--transition-base);
}

.venue-quick-actions button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.current-filter-info {
    background: var(--gradient-mint-fade);
    border: 2px solid var(--color-mint-light);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    color: var(--color-mint-dark);
    font-weight: 500;
    text-align: center;
}

.current-filter-info strong {
    color: var(--color-mint);
}

.no-favorites-message {
    text-align: center;
    color: var(--color-gray-light);
    font-style: italic;
    padding: var(--space-lg);
    background: rgba(126, 162, 144, 0.05);
    border-radius: var(--radius-sm);
    border: 2px dashed rgba(126, 162, 144, 0.2);
}

.venue-loading {
    text-align: center;
    padding: var(--space-md);
    color: var(--color-mint);
}

.venue-loading::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* --- Button System --- */
/* Base button style for all action buttons on the courses page */
.btn-action {
    border: none;
    color: white;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: var(--transition-base);
    text-transform: uppercase;
    font-size: 0.85rem;
    box-shadow: var(--shadow-sm);
    min-height: 44px; /* Touch-friendly minimum height */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
}

.btn-action:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
    text-decoration: none;
}

.btn-action:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-action:disabled {
    background: var(--color-gray-light);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.6;
}

.btn-action:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(126, 162, 144, 0.3);
}

/* Primary Action Button (Mint) */
.btn-action.btn-primary {
    background: var(--gradient-mint);
}

.btn-action.btn-primary:hover {
    background: var(--gradient-mint-light);
}

/* Secondary Action Button (Gray) */
.btn-action.btn-secondary {
    background: linear-gradient(135deg, var(--color-gray-dark), var(--color-gray-light));
}

.btn-action.btn-secondary:hover {
    background: linear-gradient(135deg, var(--color-gray-light), var(--color-gray-dark));
}

/* Destructive/Warning Action Button (Orange) */
.btn-action.btn-warning {
    background: linear-gradient(135deg, var(--color-orange), #fbbf24);
}

.btn-action.btn-warning:hover {
    background: linear-gradient(135deg, #d97706, var(--color-orange));
}

/* Informational Action Button (Blue) */
.btn-action.btn-info {
    background: linear-gradient(135deg, var(--color-blue), #60a5fa);
}

.btn-action.btn-info:hover {
    background: linear-gradient(135deg, #2563eb, var(--color-blue));
}

/* Danger Action Button (Red) */
.btn-action.btn-danger {
    background: linear-gradient(135deg, var(--color-red), #fc8181);
}

.btn-action.btn-danger:hover {
    background: linear-gradient(135deg, #c53030, var(--color-red));
}

/* Small button variant */
.btn-action.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    min-height: 36px;
}

/* Large button variant */
.btn-action.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
    min-height: 52px;
}

/* Button with icon */
.btn-action i {
    margin-right: 0.5rem;
    font-size: 0.9em;
}

.btn-action.btn-icon-only {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
}

.btn-action.btn-icon-only i {
    margin-right: 0;
}

/* Button group styling */
.btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-group .btn-action {
    flex: 1;
    min-width: 120px;
}

/* Responsive button adjustments */
@media (max-width: 768px) {
    .btn-action {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        min-height: 48px; /* Larger touch target on mobile */
    }
    
    .btn-action.btn-sm {
        padding: 0.6rem 1.2rem;
        min-height: 40px;
    }
    
    .btn-action.btn-lg {
        padding: 1.2rem 2.5rem;
        min-height: 56px;
    }
    
    .btn-group {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .btn-group .btn-action {
        min-width: auto;
        width: 100%;
    }
    
    /* Stack buttons vertically on mobile for better UX */
    .venue-quick-actions {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .venue-quick-actions button {
        margin: 0;
        width: 100%;
    }
}

/* Ensure Bootstrap buttons also follow our design system */
.btn {
    border: none;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: var(--transition-base);
    text-transform: uppercase;
    font-size: 0.85rem;
    box-shadow: var(--shadow-sm);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(126, 162, 144, 0.3);
}

/* Bootstrap primary button with our design */
.btn-primary {
    background: var(--gradient-mint);
    color: var(--color-white);
    border: none;
}

.btn-primary:hover {
    background: var(--gradient-mint-light);
    color: var(--color-white);
}

/* Bootstrap outline buttons */
.btn-outline-danger {
    background: transparent;
    border: 2px solid var(--color-red);
    color: var(--color-red);
}

.btn-outline-danger:hover {
    background: var(--color-red);
    color: var(--color-white);
    border-color: var(--color-red);
}

/* Date picker container button styling */
.date-picker-container .btn-primary {
    background: var(--gradient-mint);
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    min-height: 44px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.date-picker-container .btn-primary:hover {
    background: var(--gradient-mint-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Responsive adjustments for date picker buttons */
@media (max-width: 768px) {
    .date-picker-container .btn-primary {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        min-height: 48px;
    }
}

@media (max-width: 480px) {
    .date-picker-container .btn-primary {
        padding: 0.8rem 1.2rem;
        font-size: 0.85rem;
        min-height: 44px;
        width: 100%;
        margin-top: 0.5rem;
    }
    
    .btn-action {
        padding: 0.8rem 1.2rem;
        font-size: 0.85rem;
        min-height: 44px;
    }
    
    .date-picker-container {
        padding: 1rem;
    }
}

/* Venue Action Buttons - CONSISTENT STYLING */
.venue-action-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

/* Base styling for ALL venue action buttons */
.venue-action-buttons .btn-action {
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: none;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
    box-shadow: var(--shadow-sm);
    color: var(--color-white);
    text-decoration: none;
}

.venue-action-buttons .btn-action:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
    text-decoration: none;
}

.venue-action-buttons .btn-action:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.venue-action-buttons .btn-action:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(126, 162, 144, 0.3);
}

.venue-action-buttons .btn-action:disabled {
    background: var(--color-gray-light);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.6;
}

/* Primary Action Button (Mint) */
.venue-action-buttons .btn-action.btn-primary {
    background: var(--gradient-mint);
}

.venue-action-buttons .btn-action.btn-primary:hover {
    background: var(--gradient-mint-light);
}

/* Warning Action Button (Orange) */
.venue-action-buttons .btn-action.btn-warning {
    background: linear-gradient(135deg, var(--color-orange), #fbbf24);
}

.venue-action-buttons .btn-action.btn-warning:hover {
    background: linear-gradient(135deg, #d97706, var(--color-orange));
}

/* Informational Action Button (Blue) */
.venue-action-buttons .btn-action.btn-info {
    background: linear-gradient(135deg, var(--color-blue), #60a5fa);
}

.venue-action-buttons .btn-action.btn-info:hover {
    background: linear-gradient(135deg, #2563eb, var(--color-blue));
}

/* Venue Selector Section */
.venue-selector-section {
    border-top: 2px solid rgba(126, 162, 144, 0.1);
    padding-top: 1.5rem;
}

.venue-selector-section .form-group {
    margin-bottom: 0;
}

.venue-selector-section label {
    font-weight: 600;
    color: var(--color-mint-dark);
    margin-bottom: 0.75rem;
    display: block;
    font-size: 0.9rem;
}

/* Expandable Venue Section */
.expandable-venue-section {
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition-base);
    border: 2px solid rgba(126, 162, 144, 0.2);
}

.expandable-venue-section:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-mint-light);
}

.expandable-header {
    background: var(--gradient-mint-fade);
    padding: 1rem 1.5rem;
    cursor: pointer;
    border-bottom: 2px solid rgba(126, 162, 144, 0.2);
    transition: var(--transition-base);
    user-select: none;
}

.expandable-header:hover {
    background: var(--gradient-mint-light);
    border-color: var(--color-mint-light);
}

.expandable-header h6 {
    color: var(--color-mint-dark);
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
}

.expand-icon {
    transition: var(--transition-base);
    color: var(--color-mint);
    font-size: 0.9rem;
}

.expandable-header.expanded .expand-icon {
    transform: rotate(45deg);
}

.expandable-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.expandable-content.expanded {
    max-height: 800px; /* Increased for combined content */
}

.expandable-content .card {
    border: none;
    border-radius: 0;
    box-shadow: none;
    margin: 0;
}

.expandable-content .card-body {
    padding: 1.5rem;
}

/* Responsive adjustments for expandable section */
@media (max-width: 768px) {
    .venue-action-buttons {
        gap: 0.5rem;
        margin-bottom: 1rem;
    }
    
    .venue-action-buttons .btn-action {
        height: 52px;
        font-size: 0.8rem;
        padding: 0 0.75rem;
    }
    
    .expandable-header {
        padding: 0.75rem 1rem;
    }
    
    .expandable-header h6 {
        font-size: 0.9rem;
    }
    
    .expandable-content .card-body {
        padding: 1rem;
    }
    
    .venue-selector-section {
        padding-top: 1rem;
    }
}

@media (max-width: 480px) {
    .venue-action-buttons .btn-action {
        height: 48px;
        font-size: 0.75rem;
        padding: 0 0.5rem;
    }
}

/* Venue selector styling within expandable section */
.expandable-content #venue-selector {
    min-height: 120px;
    border: 2px solid rgba(126, 162, 144, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    background: var(--color-white);
}

.expandable-content .form-group label {
    font-weight: 600;
    color: var(--color-mint-dark);
    margin-bottom: 0.5rem;
    display: block;
}

/* Select2 customization for expandable section */
.expandable-content .select2-container--default .select2-selection--multiple {
    border: 2px solid rgba(126, 162, 144, 0.2);
    border-radius: var(--radius-sm);
    min-height: 120px;
    background: var(--color-white);
}

.expandable-content .select2-container--default .select2-selection--multiple .select2-selection__choice {
    background: var(--gradient-mint);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.5rem;
    margin: 0.25rem;
    font-size: 0.8rem;
}

.expandable-content .select2-container--default .select2-selection--multiple .select2-selection__choice__remove {
    color: var(--color-white);
    margin-right: 0.5rem;
    font-weight: bold;
}

.expandable-content .select2-container--default .select2-selection--multiple .select2-selection__choice__remove:hover {
    color: var(--color-red-light);
}

.expandable-content .select2-container--default .select2-selection--multiple .select2-selection__rendered {
    padding: 0.5rem;
}

.expandable-content .select2-container--default .select2-search--inline .select2-search__field {
    margin-top: 0.25rem;
    font-size: 0.9rem;
}

/* Schedule page responsive button styling */
@media (max-width: 768px) {
    .usc-btn-group {
        gap: 0.125rem;
        margin-bottom: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .usc-btn-group .btn {
        flex: 1 1 calc(50% - 0.0625rem);
        min-width: 140px;
        font-size: 0.8rem;
        padding: 0.5rem 0.6rem;
        margin-bottom: 0.125rem;
    }
    
    .sync-info {
        font-size: 0.75rem;
        padding: 0.5rem;
        margin-bottom: 0.5rem;
    }
    
    .sync-info small {
        line-height: 1.2;
    }
    
    /* Reduce spacing between sections */
    .container.mt-4 {
        margin-top: 0.5rem !important;
    }
    
    .container.mt-4 h2 {
        font-size: 1.5rem;
        margin-bottom: 0.375rem;
    }
    
    .container.mt-4 h4 {
        font-size: 1.1rem;
        margin-top: 0.5rem;
        margin-bottom: 0.25rem;
    }
}

@media (max-width: 480px) {
    .usc-btn-group {
        gap: 0;
        margin-bottom: 0;
        margin-top: 0;
    }
    
    .usc-btn-group .btn {
        flex: 1 1 calc(50% - 0.03125rem);
        min-width: 120px;
        font-size: 0.75rem;
        padding: 0.2rem 0.2rem;
        margin-bottom: 0.0625rem;
    }
    
    .sync-info {
        font-size: 0.7rem;
        padding: 0.375rem;
        margin-bottom: 0.375rem;
    }
    
    /* Further reduce spacing for very small screens */
    .container.mt-4 {
        margin-top: 0.375rem !important;
    }
    
    .container.mt-4 h2 {
        font-size: 1.3rem;
        margin-bottom: 0.25rem;
    }
    
    .container.mt-4 h4 {
        font-size: 1rem;
        margin-top: 0.375rem;
        margin-bottom: 0.1875rem;
    }
    
    /* Make course cards more compact */
    .courses-grid {
        gap: 0.25rem;
    }
    
    .course-card {
        padding: 0.5rem;
    }
    
    .course-title {
        font-size: 0.9rem;
        margin-bottom: 0.1875rem;
    }
    
    .course-time {
        font-size: 0.8rem;
    }
    
    .course-body {
        padding-top: 0.375rem;
    }
}

/* Extra small devices (iPhone SE, etc.) */
@media (max-width: 375px) {
    .usc-btn-group {
        gap: 0.03125rem;
        margin-bottom: 0.25rem;
    }
    
    .usc-btn-group .btn {
        flex: 1 1 100%;
        min-width: auto;
        font-size: 0.7rem;
        padding: 0.35rem 0.4rem;
        margin-bottom: 0.03125rem;
    }
    
    .sync-info {
        font-size: 0.65rem;
        padding: 0.25rem;
        margin-bottom: 0.25rem;
    }
}