/* Mobile-first styles */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

/* Base styles */
html, body {
    height: 100%;
    margin: 0;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-top: 56px; /* Height of navbar */
    font-size: 16px;
    line-height: 1.5;
}

/* Language selector */
.language-selector {
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 1000;
}

.language-selector .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.language-selector .btn.active {
    background-color: var(--primary-color);
    color: white;
}

/* Navigation */
.navbar {
    padding: 0.5rem 1rem;
}

.navbar-brand {
    font-size: 1.1rem;
}

.navbar-toggler {
    padding: 0.25rem 0.5rem;
    font-size: 1rem;
}

/* Containers and spacing */
.container {
    padding-left: 15px;
    padding-right: 15px;
}

/* Tables */
.table-responsive {
    margin-bottom: 1rem;
    border: 0;
}

.table {
    width: 100%;
    margin-bottom: 1rem;
    background-color: transparent;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid #dee2e6;
}

/* Cards */
.card {
    margin-bottom: 1rem;
    border-radius: 0.3rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card-body {
    padding: 1rem;
}

.card-header {
    padding: 0.75rem 1rem;
    background-color: rgba(0,0,0,0.03);
    border-bottom: 1px solid rgba(0,0,0,0.125);
}

/* Stats cards */
.stats-card {
    margin-bottom: 1rem;
    transition: transform 0.2s;
}

.stats-card:hover {
    transform: translateY(-2px);
}

.stats-card .card-body {
    padding: 1rem;
}

.stats-card .display-6 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0;
}

/* Forms */
.form-control {
    font-size: 16px; /* Prevents zoom on iOS */
    padding: 0.375rem 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
}

.form-label {
    margin-bottom: 0.5rem;
    font-weight: 500;
}

/* Buttons */
.btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.9rem;
    border-radius: 0.25rem;
    transition: all 0.2s;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

.btn-group {
    display: flex;
    gap: 0.5rem;
}

/* Alerts */
.alert {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 0.25rem;
}

/* Modals */
.modal-dialog {
    margin: 0.5rem;
}

.modal-content {
    border-radius: 0.3rem;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
}

/* Tabs */
.nav-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    -ms-overflow-style: none;
    scrollbar-width: none;
    border-bottom: 1px solid #dee2e6;
}

.nav-tabs::-webkit-scrollbar {
    display: none;
}

.nav-tabs .nav-link {
    white-space: nowrap;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    border-top-left-radius: 0.25rem;
    border-top-right-radius: 0.25rem;
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    background-color: #fff;
    border-color: #dee2e6 #dee2e6 #fff;
}

/* Action buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    margin-top: auto;
    padding: 1rem 0;
    font-size: 0.9rem;
    background-color: var(--light-color);
    border-top: 1px solid #dee2e6;
    width: 100%;
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
}

/* Media queries for larger screens */
@media (min-width: 768px) {
    .language-selector {
        top: 20px;
        right: 20px;
    }

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

    .container {
        padding-left: 30px;
        padding-right: 30px;
    }

    .stats-card .display-6 {
        font-size: 2rem;
    }

    .card {
        margin-bottom: 1.5rem;
    }

    .table th,
    .table td {
        padding: 1rem;
    }

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

    .modal-dialog {
        margin: 1.75rem auto;
        max-width: 500px;
    }
}

/* Print styles */
@media print {
    .navbar,
    .language-selector,
    .footer,
    .btn {
        display: none !important;
    }

    body {
        padding-top: 0;
    }

    .container {
        width: 100%;
        max-width: none;
        padding: 0;
    }

    .card {
        border: none;
        box-shadow: none;
    }
}