/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9ff;
    min-height: 100vh;
}

/* Auth Container */
.auth-container {
    display: flex;
    min-height: 100vh;
}

.auth-left {
    flex: 1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.auth-left::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="90" cy="90" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.auth-branding {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 400px;
}

.auth-branding h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.auth-branding > p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.auth-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: left;
}

.feature {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature p {
    opacity: 0.9;
    font-size: 0.95rem;
}

.auth-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: white;
}

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

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: #666;
    font-size: 1rem;
}

/* Form Styles */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    align-items: flex-start; /* Align to top for consistent alignment */
}

.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.form-half {
    flex: 0 0 calc(50% - 0.5rem);
}

.form-group label {
    font-weight: 500;
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    padding: 14px 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    font-family: inherit;
    background: white;
}

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

.form-group input::placeholder {
    color: #9ca3af;
}

.field-hint {
    font-size: 0.8rem;
    color: #6b7280;
    margin-top: 0.25rem;
    font-style: italic;
    min-height: 1rem; /* Ensures consistent spacing even when empty */
}

.form-group input:invalid:not(:placeholder-shown) + .field-hint {
    color: #dc2626;
}

.form-group input:valid:not(:placeholder-shown) + .field-hint {
    color: #16a34a;
}

/* Ensure form groups have consistent height */
.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    min-height: fit-content;
}

.form-half {
    flex: 0 0 calc(50% - 0.5rem);
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    width: 20px;
    height: 20px;
    background-color: white;
    border: 2px solid #e1e5e9;
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: #667eea;
    border-color: #667eea;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.forgot-password,
.auth-link,
.terms-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.forgot-password:hover,
.auth-link:hover,
.terms-link:hover {
    color: #5a6fd8;
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    font-size: 15px;
    min-height: 50px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

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

.btn-full {
    width: 100%;
}

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

/* Auth Footer */
.auth-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e1e5e9;
}

.auth-footer p {
    margin: 0.5rem 0;
    color: #666;
    font-size: 0.9rem;
}

/* Loading Spinner */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    backdrop-filter: blur(5px);
}

.loading.hidden {
    display: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Error and Success Messages */
.error-message {
    background: #fee2e2;
    color: #dc2626;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid #fecaca;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.error-message::before {
    content: '⚠️';
    font-size: 1rem;
}

.success-message {
    background: #d1fae5;
    color: #065f46;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid #a7f3d0;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.success-message::before {
    content: '✅';
    font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .auth-left {
        display: none;
    }
    
    .auth-right {
        flex: 1;
        background: linear-gradient(135deg, #f8f9ff 0%, #e8ecff 100%);
    }
    
    .auth-form-container {
        background: white;
        padding: 2rem;
        border-radius: 12px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }
}

@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
    }
    
    .auth-right {
        padding: 1rem;
    }
    
    .auth-form-container {
        padding: 1.5rem;
    }
    
    .form-row {
        flex-direction: column;
        gap: 1.5rem;
        align-items: stretch; /* Ensure full width on mobile */
    }
    
    .form-half {
        flex: 1;
        width: 100%; /* Full width on mobile */
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .auth-header h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .auth-form-container {
        padding: 1rem;
    }
    
    .auth-header h2 {
        font-size: 1.5rem;
    }
    
    .form-group input,
    .form-group select {
        padding: 12px 14px;
        font-size: 14px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 14px;
        min-height: 46px;
    }
}

/* Animation for form elements */
.form-group {
    animation: slideInUp 0.5s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Focus states for better accessibility */
.form-group input:focus,
.form-group select:focus,
.btn:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Invalid input styles */
.form-group input:invalid:not(:placeholder-shown),
.form-group select:invalid {
    border-color: #dc2626;
}

.form-group input:valid:not(:placeholder-shown),
.form-group select:valid {
    border-color: #16a34a;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 3001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease-out;
}

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

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideInDown 0.3s ease-out;
    position: relative;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-content h2 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.close {
    color: #999;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    transition: color 0.3s ease;
}

.close:hover,
.close:focus {
    color: #333;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
}

.btn-secondary {
    background: #e5e7eb;
    color: #374151;
    border: 2px solid #d1d5db;
}

.btn-secondary:hover {
    background: #d1d5db;
    border-color: #9ca3af;
}

@media (max-width: 768px) {
    .modal-content {
        margin: 5% auto;
        padding: 1.5rem;
        width: 95%;
    }
    
    .form-actions {
        flex-direction: column;
    }
}