/* Custom CSS Variables */
:root {
    --primary-blue: #2563eb;
    --secondary-blue: #3b82f6;
    --light-blue: #dbeafe;
    --dark-blue: #1e40af;
    --success-green: #10b981;
    --warning-orange: #f59e0b;
    --danger-red: #ef4444;
    --white: #ffffff;
    --light-gray: #f8fafc;
    --medium-gray: #64748b;
    --dark-gray: #334155;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light-gray);
    color: var(--dark-gray);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Merriweather', Georgia, serif;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.page-title {
    color: var(--dark-blue);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    text-align: center;
    color: var(--primary-blue);
}

.loading-spinner .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Navigation Styles */
.navbar {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%) !important;
    box-shadow: var(--shadow-lg);
    padding: 1rem 0;
}

.navbar-brand {
    font-family: 'Merriweather', serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--white) !important;
    transition: transform 0.2s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
    color: var(--light-blue) !important;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    margin: 0 0.25rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white) !important;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.navbar-text {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 600;
}

/* Main Content */
.main-content {
    margin-top: 80px;
    padding: 2rem 0;
    min-height: calc(100vh - 80px);
}

/* Page Navigation */
.page {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.page.active {
    display: block;
}

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

/* Card Styles */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
    background-color: var(--white);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--light-blue) 0%, rgba(37, 99, 235, 0.1) 100%);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0.75rem 0.75rem 0 0 !important;
    padding: 1rem 1.5rem;
}

.card-header h5 {
    color: var(--dark-blue);
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: 1.5rem;
}

/* Summary Cards */
.summary-card {
    background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 100%);
    border-left: 4px solid var(--primary-blue);
    transition: all 0.3s ease;
}

.summary-card:hover {
    border-left-color: var(--secondary-blue);
    transform: translateY(-3px);
}

.summary-card.balance-card {
    border-left-color: var(--success-green);
}

.summary-card.balance-card:hover {
    border-left-color: #059669;
}

/* Button Styles */
.btn {
    border-radius: 0.5rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    color: var(--white);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-green) 0%, #059669 100%);
    color: var(--white);
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: var(--white);
}

.btn-outline-primary {
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    background-color: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: var(--white);
    background-color: transparent;
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    color: var(--white);
}

/* Form Styles */
.form-control,
.form-select {
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
    background-color: var(--white);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 0.5rem;
}

/* Lists */
.recent-bets-list,
.upcoming-events-list,
.bets-list,
.balance-history {
    max-height: 400px;
    overflow-y: auto;
}

.bet-item,
.event-item,
.balance-item {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: all 0.2s ease;
}

.bet-item:hover,
.event-item:hover,
.balance-item:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow);
    transform: translateX(5px);
}

.bet-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
}

.bet-status.active {
    background-color: var(--light-blue);
    color: var(--primary-blue);
}

.bet-status.won {
    background-color: #dcfce7;
    color: var(--success-green);
}

.bet-status.lost {
    background-color: #fee2e2;
    color: var(--danger-red);
}

/* Event Cards */
.event-card {
    background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 100%);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

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

.event-odds {
    background: linear-gradient(135deg, var(--success-green) 0%, #059669 100%);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 700;
    font-size: 1.1rem;
}

/* Modal Styles */
.modal-content {
    border: none;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    background: linear-gradient(135deg, var(--light-blue) 0%, rgba(37, 99, 235, 0.1) 100%);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0.75rem 0.75rem 0 0;
}

.modal-title {
    color: var(--dark-blue);
    font-weight: 700;
}

/* Badges */
.badge {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
}

/* Alert Styles */
.alert {
    border: none;
    border-radius: 0.5rem;
    border-left: 4px solid;
}

.alert-info {
    background-color: var(--light-blue);
    border-left-color: var(--primary-blue);
    color: var(--dark-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-content {
        margin-top: 70px;
        padding: 1rem 0;
    }

    .page-title {
        font-size: 2rem;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .card-body {
        padding: 1rem;
    }

    .summary-card {
        margin-bottom: 1rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .event-card,
    .bet-item {
        padding: 1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 1rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .card-header {
        padding: 0.75rem 1rem;
    }

    .card-body {
        padding: 0.75rem;
    }

    .navbar-text {
        display: none;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        border-radius: 0.375rem !important;
        margin-bottom: 0.25rem;
    }
}

/* Scrollbar Styles */
.recent-bets-list::-webkit-scrollbar,
.upcoming-events-list::-webkit-scrollbar,
.bets-list::-webkit-scrollbar,
.balance-history::-webkit-scrollbar {
    width: 6px;
}

.recent-bets-list::-webkit-scrollbar-track,
.upcoming-events-list::-webkit-scrollbar-track,
.bets-list::-webkit-scrollbar-track,
.balance-history::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: 3px;
}

.recent-bets-list::-webkit-scrollbar-thumb,
.upcoming-events-list::-webkit-scrollbar-thumb,
.bets-list::-webkit-scrollbar-thumb,
.balance-history::-webkit-scrollbar-thumb {
    background: var(--medium-gray);
    border-radius: 3px;
}

.recent-bets-list::-webkit-scrollbar-thumb:hover,
.upcoming-events-list::-webkit-scrollbar-thumb:hover,
.bets-list::-webkit-scrollbar-thumb:hover,
.balance-history::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue);
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

.slide-up {
    animation: slideUp 0.3s ease-out;
}

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

/* Utility Classes */
.text-primary {
    color: var(--primary-blue) !important;
}

.text-success {
    color: var(--success-green) !important;
}

.text-warning {
    color: var(--warning-orange) !important;
}

.bg-primary {
    background-color: var(--primary-blue) !important;
}

.border-primary {
    border-color: var(--primary-blue) !important;
}

/* Custom spacing */
.mb-4 {
    margin-bottom: 1.5rem !important;
}

.mt-4 {
    margin-top: 1.5rem !important;
}

.p-4 {
    padding: 1.5rem !important;
}