/* =====================================================
   MAIN.CSS - Styles principaux
   Application Gestion Appels d'Offres
   ===================================================== */

/* 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;
    color: #202124;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* =====================================================
   LOGIN PAGE
   ===================================================== */

.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo {
    font-size: 64px;
    text-align: center;
    margin-bottom: 20px;
}

.login-card h1 {
    font-size: 28px;
    text-align: center;
    color: #202124;
    margin-bottom: 10px;
}

.subtitle {
    text-align: center;
    color: #5f6368;
    margin-bottom: 30px;
    font-size: 15px;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #202124;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 2px solid #dadce0;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-secondary {
    background: #dadce0;
    color: #202124;
}

.btn-success {
    background: #34a853;
    color: white;
}

.btn-danger {
    background: #ea4335;
    color: white;
}

.btn-block {
    width: 100%;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-color: #28a745;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border-color: #dc3545;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border-color: #ffc107;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border-color: #17a2b8;
}

/* Info Box */
.info-box {
    margin-top: 25px;
    padding: 15px;
    background: #e8f0fe;
    border-radius: 8px;
    font-size: 14px;
    color: #1967d2;
    text-align: center;
}

.info-box strong {
    display: block;
    margin-bottom: 5px;
}

/* =====================================================
   UTILITY CLASSES
   ===================================================== */

.hidden {
    display: none !important;
}

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

.text-right {
    text-align: right;
}

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }

.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }

.p-1 { padding: 10px; }
.p-2 { padding: 20px; }
.p-3 { padding: 30px; }

/* =====================================================
   RESPONSIVE
   ===================================================== */

@media (max-width: 768px) {
    .login-card {
        padding: 30px 25px;
    }
    
    .logo {
        font-size: 48px;
    }
    
    .login-card h1 {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .login-page {
        padding: 10px;
    }
    
    .login-card {
        padding: 25px 20px;
    }
    
    .logo {
        font-size: 40px;
    }
}