/* ========================================
   CHATZO MODERN BASE STYLES - 2026
   ======================================== */

/* Modern Base Typography */
body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: #2c3e50;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.3px;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: #555;
}

a {
    color: #667eea;
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #764ba2;
    text-decoration: none;
}

/* Modern Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Modern Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

/* Modern Card Component */
.card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.15);
}

.card-header {
    padding: 20px;
    border-bottom: 2px solid #f8f9fa;
    font-weight: 700;
    color: #2c3e50;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
}

.card-body {
    padding: 25px;
}

.card-footer {
    padding: 20px;
    border-top: 2px solid #f8f9fa;
    background: #fafbfc;
}

/* Modern Buttons */
.btn {
    border-radius: 12px;
    padding: 12px 30px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #7689f0 0%, #8659b0 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, #56ab2f 0%, #a8e063 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(86, 171, 47, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, #66bb3f 0%, #b8f073 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(86, 171, 47, 0.4);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.3);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #ff677c 0%, #ffa3ff 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 87, 108, 0.4);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid #667eea;
    color: #667eea;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 17px;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 13px;
}

/* Modern Alerts */
.alert {
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 20px;
    border: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.alert-success {
    background: linear-gradient(135deg, rgba(86, 171, 47, 0.1), rgba(168, 224, 99, 0.1));
    color: #56ab2f;
    border-left: 4px solid #56ab2f;
}

.alert-danger,
.alert-error {
    background: linear-gradient(135deg, rgba(245, 87, 108, 0.1), rgba(240, 147, 251, 0.1));
    color: #f5576c;
    border-left: 4px solid #f5576c;
}

.alert-info {
    background: linear-gradient(135deg, rgba(33, 147, 176, 0.1), rgba(109, 213, 237, 0.1));
    color: #2193b0;
    border-left: 4px solid #2193b0;
}

.alert-warning {
    background: linear-gradient(135deg, rgba(255, 165, 0, 0.1), rgba(255, 193, 7, 0.1));
    color: #ff9800;
    border-left: 4px solid #ff9800;
}

/* Modern Badge */
.badge {
    display: inline-block;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.badge-success {
    background: linear-gradient(135deg, #56ab2f, #a8e063);
    color: white;
}

.badge-danger {
    background: linear-gradient(135deg, #f5576c, #f093fb);
    color: white;
}

/* Modern Modal */
.modal {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-header {
    border-bottom: 2px solid #f8f9fa;
    padding: 25px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    border-top: 2px solid #f8f9fa;
    padding: 20px 25px;
    background: #fafbfc;
}

/* Modern List Group */
.list-group-item {
    border-radius: 12px;
    border: none;
    margin-bottom: 8px;
    padding: 15px 20px;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.list-group-item:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

/* Modern Navbar Enhancements */
.navbar {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 700;
}

/* Modern Utilities */
.text-muted {
    color: #6c757d !important;
}

.text-center {
    text-align: center !important;
}

.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }

.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 3rem !important; }

/* Modern Responsive Utilities */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }

    .btn {
        padding: 10px 25px;
        font-size: 14px;
    }

    .card-body {
        padding: 20px;
    }
}

/* Modern Loading Spinner */
.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(102, 126, 234, 0.3);
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Modern Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #7689f0, #8659b0);
}