/* Auth CSS - GEN-Z CLOTHING */
:root {
    --primary: #000000;
    --secondary: #ffffff;
    --accent: #f5f5f5;
    --text: #333333;
    --text-light: #666666;
    --border: #e5e5e5;
    --error: #ff3b30;
    --success: #22c55e;
    --google-red: #db4437;
    --facebook-blue: #4267B2;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

body {
    color: var(--text);
    background-color: var(--secondary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Auth Header */
.auth-header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    background: var(--secondary);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span {
    font-weight: 300;
}

.back-home {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: opacity 0.3s;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
}

.back-home:hover {
    opacity: 0.7;
    background: var(--accent);
}

/* Auth Container */
.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--secondary) 100%);
    min-height: calc(100vh - 80px);
}

.auth-content {
    background: var(--secondary);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 480px;
    position: relative;
}

.auth-header {
    text-align: center;
    margin-bottom: 24px;
}

.auth-header h3 {
    font-size: 24px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

/* Service Notice */
.service-notice-auth {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent);
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--text-light);
}

.service-notice-auth i {
    color: var(--primary);
}

/* Auth Tabs */
.auth-tabs {
    display: flex;
    background: var(--accent);
    border-radius: 8px;
    padding: 4px;
    margin-bottom: 32px;
}

.auth-tab {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--text-light);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 6px;
}

.auth-tab.active {
    background: var(--primary);
    color: var(--secondary);
}

.auth-tab:not(.active):hover {
    color: var(--text);
    background: rgba(0, 0, 0, 0.05);
}

/* Auth Forms */
.auth-forms {
    position: relative;
}

.auth-form {
    display: none;
    animation: fadeIn 0.3s ease;
}

.auth-form.active {
    display: block;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: var(--secondary);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.form-group input.error,
.form-group select.error {
    border-color: var(--error);
}

.form-group input.success,
.form-group select.success {
    border-color: var(--success);
}

.location-help {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-light);
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 14px;
}

.remember-me,
.terms-agree {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.remember-me input,
.terms-agree input {
    width: auto;
}

.forgot-password {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s;
}

.forgot-password:hover {
    color: var(--primary);
}

.terms-agree a {
    color: var(--primary);
    text-decoration: none;
}

.terms-agree a:hover {
    text-decoration: underline;
}

/* Auth Submit Button */
.auth-submit-btn {
    width: 100%;
    background: var(--primary);
    color: var(--secondary);
    border: none;
    padding: 14px 16px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 24px;
}

.auth-submit-btn:hover {
    background: #333;
    transform: translateY(-1px);
}

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

.auth-submit-btn:disabled {
    background: var(--text-light);
    cursor: not-allowed;
    transform: none;
}

/* Auth Divider */
.auth-divider {
    position: relative;
    text-align: center;
    margin: 24px 0;
    color: var(--text-light);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border);
    z-index: 1;
}

.auth-divider span {
    background: var(--secondary);
    padding: 0 16px;
    position: relative;
    z-index: 2;
}

/* Social Auth */
.social-auth {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}

.social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--secondary);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.social-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

.google-btn:hover {
    border-color: var(--google-red);
    color: var(--google-red);
}

.facebook-btn:hover {
    border-color: var(--facebook-blue);
    color: var(--facebook-blue);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

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

.spinner-circle {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

/* Error Messages */
.error-message {
    color: var(--error);
    font-size: 12px;
    margin-top: 4px;
    display: block;
}

.success-message {
    color: var(--success);
    font-size: 12px;
    margin-top: 4px;
    display: block;
}

/* Password Strength */
.password-strength {
    margin-top: 8px;
}

.strength-bar {
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin-bottom: 4px;
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-fill.weak {
    width: 33%;
    background: var(--error);
}

.strength-fill.medium {
    width: 66%;
    background: #ffa500;
}

.strength-fill.strong {
    width: 100%;
    background: var(--success);
}

.strength-text {
    font-size: 12px;
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .auth-container {
        padding: 20px 16px;
        align-items: flex-start;
    }
    
    .auth-content {
        padding: 32px 24px;
        margin-top: 20px;
    }
    
    .auth-header h3 {
        font-size: 20px;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .forgot-password {
        align-self: flex-end;
    }
    
    .social-auth {
        flex-direction: column;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .back-home {
        align-self: center;
    }
}

@media (max-width: 480px) {
    .auth-content {
        padding: 24px 20px;
    }
    
    .auth-header h3 {
        font-size: 18px;
    }
    
    .auth-tab {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .form-group input,
    .form-group select,
    .auth-submit-btn,
    .social-btn {
        padding: 12px 14px;
    }
}

/* Focus States for Accessibility */
.auth-tab:focus,
.form-group input:focus,
.form-group select:focus,
.auth-submit-btn:focus,
.social-btn:focus,
.back-home:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .auth-header,
    .service-notice-auth,
    .social-auth,
    .back-home {
        display: none;
    }
    
    .auth-container {
        background: white;
        padding: 0;
    }
    
    .auth-content {
        box-shadow: none;
        border: 1px solid var(--border);
    }
}