/* ============================================
   SENGA SYSTEMS - Authentication Styles
   ============================================ */

/* Auth Background */
.auth-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--bg-primary);
    overflow: hidden;
}

.auth-bg__grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 50%, black, transparent);
}

.auth-bg__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 15s ease-in-out infinite;
}

.auth-bg__glow--1 {
    top: -20%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: var(--accent-cyan);
}

.auth-bg__glow--2 {
    bottom: -20%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: var(--accent-green);
    animation-delay: -7s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(30px, -30px) rotate(5deg); }
    50% { transform: translate(-20px, 20px) rotate(-5deg); }
    75% { transform: translate(10px, 10px) rotate(3deg); }
}

/* Auth Container */
.auth-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

/* Back Link */
.auth-back {
    position: absolute;
    top: 30px;
    left: 30px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition-base);
}

.auth-back:hover {
    color: var(--accent-cyan);
    transform: translateX(-5px);
}

.auth-back svg {
    transition: transform var(--transition-base);
}

.auth-back:hover svg {
    transform: translateX(-3px);
}

/* Auth Card */
.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.auth-card__header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

.auth-logo span {
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-card__header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.auth-card__header p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Auth Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper svg {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--transition-base);
}

.input-wrapper input {
    width: 100%;
    padding: 14px 14px 14px 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 15px;
    transition: var(--transition-base);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.input-wrapper input:focus + svg,
.input-wrapper:focus-within svg:first-of-type {
    color: var(--accent-cyan);
}

.input-wrapper input::placeholder {
    color: var(--text-muted);
}

/* Toggle Password */
.toggle-password {
    position: absolute;
    right: 14px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-base);
}

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

/* Password Strength */
.password-strength {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}

.strength-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

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

.strength-fill.weak {
    width: 33%;
    background: #ef4444;
}

.strength-fill.medium {
    width: 66%;
    background: #f59e0b;
}

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

.strength-text {
    font-size: 12px;
    color: var(--text-muted);
    min-width: 100px;
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
}

.checkbox-wrapper input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-primary);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.checkbox-wrapper input:checked + .checkmark {
    background: var(--gradient-primary);
    border-color: transparent;
}

.checkbox-wrapper input:checked + .checkmark::after {
    content: '';
    width: 5px;
    height: 9px;
    border: solid var(--bg-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}

.checkbox-wrapper a {
    color: var(--accent-cyan);
}

.checkbox-wrapper a:hover {
    text-decoration: underline;
}

.forgot-link {
    font-size: 14px;
    color: var(--accent-cyan);
}

.forgot-link:hover {
    text-decoration: underline;
}

/* Error Message */
.error-message {
    padding: 12px 16px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
    color: #ef4444;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-message::before {
    content: '⚠';
}

/* Success Message */
.success-message {
    padding: 12px 16px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-sm);
    color: var(--accent-green);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.success-message::before {
    content: '✓';
}

/* Auth Divider */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-primary);
}

.auth-divider span {
    font-size: 13px;
    color: var(--text-muted);
}

/* Social Login */
.social-login {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
}

.social-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-cyan);
}

/* Auth Switch */
.auth-switch {
    text-align: center;
    margin-top: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--accent-cyan);
    font-weight: 500;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* Auth Benefits */
.auth-benefits {
    margin-top: 32px;
    text-align: center;
}

.auth-benefits h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.auth-benefits ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.auth-benefits li {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.auth-benefits li svg {
    color: var(--accent-green);
    flex-shrink: 0;
}

/* Security Notice */
.security-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
    font-size: 12px;
    color: var(--text-muted);
}

.security-notice svg {
    color: var(--accent-green);
}

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

.btn.loading span {
    opacity: 0;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 480px) {
    .auth-back {
        position: static;
        margin-bottom: 20px;
    }
    
    .auth-card {
        padding: 24px;
    }
    
    .auth-card__header h1 {
        font-size: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .social-login {
        grid-template-columns: 1fr;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============================================
   DASHBOARD STYLES (for logged in users)
   ============================================ */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-primary);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--bg-primary);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.user-email {
    font-size: 12px;
    color: var(--text-muted);
}

.logout-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition-base);
}

.logout-btn:hover {
    border-color: #ef4444;
    color: #ef4444;
}