/* Variables de couleurs */
:root {
    --primary-color: #20B2AA;
    --primary-dark: #008B8B;
    --primary-light: #40E0D0;
    --primary-gradient: linear-gradient(135deg, #20B2AA 0%, #00CED1 100%);
    --white: #FFFFFF;
    --gray-light: #F8F9FA;
    --gray-medium: #E9ECEF;
    --gray-dark: #6C757D;
    --text-dark: #212529;
    --text-light: #6C757D;
    --success: #28A745;
    --warning: #FFC107;
    --danger: #DC3545;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--gray-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-dark);
}

/* Boutons */
.btn {
    border-radius: var(--border-radius);
    padding: 12px 24px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(32, 178, 170, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(32, 178, 170, 0.4);
    color: var(--white);
}

.btn-success {
    background: linear-gradient(135deg, #28A745 0%, #20C997 100%);
    color: var(--white);
}

.btn-danger {
    background: linear-gradient(135deg, #DC3545 0%, #C82333 100%);
    color: var(--white);
}

.btn-secondary {
    background: var(--gray-dark);
    color: var(--white);
}

.btn-light {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    border: none;
    box-shadow: var(--shadow-md);
    margin-bottom: 24px;
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: var(--primary-gradient);
    color: var(--white);
    padding: 20px 24px;
    font-weight: 600;
    font-size: 18px;
    border: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-body {
    padding: 24px;
}

/* Formulaires */
.form-control, .form-select {
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    padding: 12px 16px;
    font-size: 15px;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(32, 178, 170, 0.15);
    outline: none;
}

.form-label {
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-size: 14px;
}

/* Navbar */
.navbar {
    background: var(--primary-gradient);
    box-shadow: var(--shadow-md);
    padding: 16px 0;
}

.navbar-brand {
    font-weight: 600;
    font-size: 20px;
    color: var(--white) !important;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-brand img {
    height: 32px;
    width: auto;
}

/* Tables */
.table {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead {
    background: var(--gray-light);
}

.table thead th {
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 2px solid var(--gray-medium);
    padding: 16px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody td {
    padding: 16px;
    border-bottom: 1px solid var(--gray-medium);
    vertical-align: middle;
}

.table tbody tr:hover {
    background: var(--gray-light);
}

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

/* Badges */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 12px;
}

.bg-success {
    background: var(--success) !important;
}

.bg-warning {
    background: var(--warning) !important;
    color: var(--text-dark);
}

.bg-secondary {
    background: var(--gray-dark) !important;
}

/* Alerts */
.alert {
    border-radius: var(--border-radius);
    border: none;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
}

.alert-success {
    background: #D4EDDA;
    color: #155724;
}

.alert-danger {
    background: #F8D7DA;
    color: #721C24;
}

/* Login pages */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
}

.login-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 20s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(180deg); }
}

.login-container {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 48px;
    max-width: 480px;
    width: 100%;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(10px);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header img,
.login-header .logo {
    height: 64px;
    width: auto;
    margin-bottom: 20px;
    object-fit: contain;
}

.login-header h2 {
    color: var(--text-dark);
    font-weight: 700;
    margin-bottom: 8px;
    font-size: 28px;
}

.login-header p {
    color: var(--text-light);
    font-size: 15px;
}

/* PIN Input */
.pin-input {
    font-size: 36px;
    text-align: center;
    letter-spacing: 16px;
    font-weight: 600;
    border: 3px solid var(--gray-medium);
    border-radius: var(--border-radius);
    padding: 20px;
    transition: var(--transition);
    background: var(--white);
    color: var(--primary-color);
}

.pin-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(32, 178, 170, 0.25);
    outline: none;
    transform: scale(1.02);
}

/* Dashboard */
.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px;
}

/* Stat cards */
.stat-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.stat-card h3 {
    color: var(--text-dark);
    margin: 12px 0;
    font-size: 32px;
    font-weight: 700;
}

.stat-card p {
    color: var(--text-light);
    margin: 0;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Profile */
.profile-info h4 {
    color: var(--text-dark);
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
}

.info-item {
    display: flex;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-medium);
}

.info-item:last-child {
    border-bottom: none;
}

.info-item i {
    color: var(--primary-color);
    margin-right: 12px;
    width: 24px;
    font-size: 20px;
}

/* Shift items */
.shift-item {
    padding: 20px;
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    transition: var(--transition);
    background: var(--white);
}

.shift-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.shift-item.active {
    border-color: var(--success);
    background: #F0FFF4;
}

.shift-item h5 {
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.shift-item p {
    color: var(--text-light);
    margin-bottom: 16px;
    font-size: 14px;
}

.btn-shift {
    width: 100%;
    padding: 14px;
    font-weight: 600;
    border-radius: var(--border-radius);
    border: none;
    transition: var(--transition);
    font-size: 16px;
}

.btn-start {
    background: linear-gradient(135deg, #28A745 0%, #20C997 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.btn-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
    color: var(--white);
}

.btn-end {
    background: linear-gradient(135deg, #DC3545 0%, #C82333 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.btn-end:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
    color: var(--white);
}

/* Current shift info */
.current-shift-info {
    background: linear-gradient(135deg, #E8F5E9 0%, #F1F8E9 100%);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border-left: 4px solid var(--success);
}

.current-shift-info h5 {
    color: var(--success);
    margin-bottom: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Responsive */
@media (max-width: 768px) {
    .login-container {
        padding: 32px 24px;
    }
    
    .dashboard-container {
        padding: 16px 12px;
    }
    
    .card-body {
        padding: 20px 16px;
    }
    
    .card-header {
        padding: 16px 20px;
        font-size: 16px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-card h3 {
        font-size: 28px;
    }
    
    .stat-card i {
        font-size: 36px;
    }
    
    .table-responsive {
        font-size: 14px;
    }
    
    .table thead th,
    .table tbody td {
        padding: 12px 8px;
    }
    
    .pin-input {
        font-size: 28px;
        letter-spacing: 12px;
        padding: 16px;
    }
    
    .navbar-brand {
        font-size: 16px;
    }
    
    .btn-sm {
        padding: 6px 12px;
        font-size: 12px;
    }
}

@media (max-width: 576px) {
    .login-container {
        padding: 24px 20px;
    }
    
    .login-header h2 {
        font-size: 24px;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    .stat-card h3 {
        font-size: 24px;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Loading states */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus visible for accessibility */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Better text selection */
::selection {
    background: var(--primary-light);
    color: var(--text-dark);
}

/* Container improvements */
.container-fluid {
    max-width: 1400px;
    margin: 0 auto;
}

/* Code styling */
code {
    background: var(--gray-light);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 14px;
    color: var(--primary-dark);
    font-weight: 600;
}