:root {
    --primary: #1a73e8;
    --primary-dark: #0d47a1;
    --secondary: #e8f0fe;
    --accent: #fbbc04;
    --text: #202124;
    --light-text: #5f6368;
    --border: #dadce0;
    --error: #d93025;
    --success: #34a853;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

/*h1 {
    color: var(--primary);
    font-size: 2.2rem;
    margin-bottom: 5px;
}*/

.subtitle {
    color: var(--light-text);
    font-size: 1.1rem;
}

.tabs-container-registration {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.tab-registration {
    padding: 12px 24px;
    cursor: pointer;
    background: white;
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    margin: 0 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    bottom: -1px;
}

.tab-registration:hover {
    background: var(--secondary);
}

.tab-registration.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.tab-content-registration {
    display: none;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.tab-content-registration.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--light-text);
}

input, select, textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 1rem;
    transition: border 0.3s ease;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 2px var(--secondary);
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-row .form-group {
    flex: 1;
}

.btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
    display: inline-block;
}

.btn:hover {
    background: var(--primary-dark);
}

.btn-block {
    display: block;
    width: 100%;
}

.form-footer {
    text-align: center;
    margin-top: 20px;
    color: var(--light-text);
}

.form-footer a {
    color: var(--primary);
    text-decoration: none;
}

.form-footer a:hover {
    text-decoration: underline;
}

.required::after {
    content: " *";
    color: var(--error);
}

.error-message {
    color: var(--error);
    font-size: 0.9rem;
    margin-top: 5px;
    display: none;
}

.success-message {
    color: var(--success);
    text-align: center;
    margin-bottom: 20px;
    display: none;
}

/* Responsive styles */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .tab-registration {
        padding: 10px 15px;
        font-size: 0.9rem;
        margin: 0 2px;
    }
    
    .tab-content-registration {
        padding: 20px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .tabs-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tab-registration {
        border-radius: 0;
        margin: 0;
        border-bottom: 1px solid var(--border);
        border-right: none;
        border-left: none;
        text-align: center;
    }
    
    .tab-registration.active {
        border-radius: 0;
    }
}


/* NOTIFICATION SYSTEM */
.notification-system {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    max-width: 550px;
    width: 90%;
}

.notification {
    position: relative;
    padding: 15px 20px;
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    color: white;
    display: flex;
    align-items: center;
    transform: translateX(120%);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.notification.active {
    transform: translateX(0);
    opacity: 1;
}

.notification.fade-out {
    opacity: 0;
    transform: translateY(-20px);
}

.notification i {
    font-size: 24px;
    margin-right: 15px;
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 16px;
}

.notification-message {
    font-size: 14px;
    line-height: 1.4;
}

.notification-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 18px;
    margin-left: 10px;
    opacity: 0.7;
}

.notification-close:hover {
    opacity: 1;
}

/* Notification Types */
.notification-info {
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-left: 4px solid #1a5276;
}

.notification-success {
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    border-left: 4px solid #1e8449;
}

.notification-warning {
    background: linear-gradient(135deg, #f39c12, #e67e22);
    border-left: 4px solid #d35400;
}

.notification-error {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    border-left: 4px solid #922b21;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .notification-system {
        top: 10px;
        right: 10px;
        width: calc(100% - 20px);
    }
    
    .notification {
        padding: 12px 15px;
    }
    
    .notification i {
        font-size: 20px;
        margin-right: 10px;
    }
}