/* ==================== Auth Pages Styling ==================== */

/* Auth Layout */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--ink-dark) 0%, var(--ink-medium) 50%, var(--ink-light) 100%);
    position: relative;
    overflow: hidden;
    padding: var(--spacing-lg);
}

/* Japanese Pattern Background */
.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 35px,
            rgba(255, 255, 255, 0.03) 35px,
            rgba(255, 255, 255, 0.03) 70px
        );
    pointer-events: none;
}

/* Floating Sakura Petals */
.sakura-petal {
    position: absolute;
    width: 20px;
    height: 20px;
    background: radial-gradient(circle at center, #ffc0cb 0%, #ffb3c1 100%);
    border-radius: 50% 0 50% 0;
    opacity: 0.6;
    animation: sakuraFall linear infinite;
    pointer-events: none;
}

.sakura-petal:nth-child(1) { 
    left: 10%; 
    animation-duration: 15s; 
    animation-delay: 0s; 
}

.sakura-petal:nth-child(2) { 
    left: 30%; 
    animation-duration: 18s; 
    animation-delay: 2s; 
}

.sakura-petal:nth-child(3) { 
    left: 50%; 
    animation-duration: 20s; 
    animation-delay: 4s; 
}

.sakura-petal:nth-child(4) { 
    left: 70%; 
    animation-duration: 16s; 
    animation-delay: 1s; 
}

.sakura-petal:nth-child(5) { 
    left: 90%; 
    animation-duration: 19s; 
    animation-delay: 3s; 
}

@keyframes sakuraFall {
    0% {
        top: -10%;
        transform: translateX(0) rotate(0deg);
    }
    100% {
        top: 110%;
        transform: translateX(100px) rotate(360deg);
    }
}

/* Auth Card */
.auth-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.3);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 480px;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideUp 0.6s ease;
}

/* Auth Header */
.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.auth-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-dark) 100%);
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 12px 32px rgba(211, 47, 47, 0.35);
    font-size: 2.5rem;
    animation: pulse 2s ease-in-out infinite;
}

.auth-title {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.5px;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 400;
}

/* Auth Form */
.auth-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.auth-form .form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.auth-form .form-label .label-icon {
    font-size: 1rem;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--transition-base);
}

.auth-form .form-control {
    padding-left: 48px;
    height: 52px;
    font-size: 0.9375rem;
    border: 2px solid var(--border-light);
    background: var(--sake-white);
    transition: all var(--transition-base);
}

.auth-form .form-control:focus {
    border-color: var(--primary-red);
    box-shadow: 0 0 0 4px rgba(211, 47, 47, 0.1);
}

.auth-form .form-control:focus + .input-icon {
    color: var(--primary-red);
}

/* Remember & Forgot */
.auth-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    font-size: 0.875rem;
}

.remember-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.remember-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-red);
}

.forgot-link {
    color: var(--primary-red);
    font-weight: 600;
    transition: color var(--transition-base);
}

.forgot-link:hover {
    color: var(--primary-red-dark);
    text-decoration: underline;
}

/* Auth Submit Button */
.auth-submit {
    width: 100%;
    height: 52px;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 8px 24px rgba(211, 47, 47, 0.3);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.auth-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(211, 47, 47, 0.4);
}

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

/* Divider */
.auth-divider {
    text-align: center;
    margin: var(--spacing-xl) 0;
    position: relative;
}

.auth-divider span {
    background: rgba(255, 255, 255, 0.98);
    padding: 0 var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.8125rem;
    position: relative;
    z-index: 1;
}

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

/* Auth Footer */
.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-light);
}

.auth-footer-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.auth-footer-link {
    color: var(--primary-red);
    font-weight: 600;
    transition: color var(--transition-base);
}

.auth-footer-link:hover {
    color: var(--primary-red-dark);
    text-decoration: underline;
}

/* Social Login Buttons */
.social-login {
    display: grid;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--sake-white);
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.social-btn:hover {
    border-color: var(--border-medium);
    background: var(--sake-cream);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.social-btn .icon {
    font-size: 1.25rem;
}

/* Alert Messages */
.auth-alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
    animation: slideDown var(--transition-slow);
}

.auth-alert.show {
    display: flex;
}

.auth-alert.error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(198, 40, 40, 0.3);
}

.auth-alert.success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(46, 125, 50, 0.3);
}

.auth-alert .icon {
    font-size: 1.25rem;
}

/* Loading State */
.auth-submit.loading {
    pointer-events: none;
    opacity: 0.7;
}

.auth-submit.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 576px) {
    .auth-card {
        padding: var(--spacing-xl);
    }
    
    .auth-title {
        font-size: 1.5rem;
    }
    
    .auth-logo {
        width: 70px;
        height: 70px;
        font-size: 2rem;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    .auth-card {
        background: rgba(30, 30, 46, 0.98);
    }
    
    .auth-title {
        color: white;
    }
    
    .auth-subtitle,
    .auth-footer-text {
        color: rgba(255, 255, 255, 0.7);
    }
    
    .auth-form .form-control {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
        color: white;
    }
    
    .social-btn {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
        color: white;
    }
}