/* ===========================================
   Vibe In Pocket - Authentication Styles
   Login, Signup, and Password Reset pages
   =========================================== */

/* ============ Auth Page Layout ============ */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-gradient {
    background: 
        radial-gradient(ellipse 100% 80% at 50% 20%, rgba(var(--accent-primary-rgb), 0.2), transparent),
        radial-gradient(ellipse 80% 60% at 20% 80%, rgba(var(--accent-secondary-rgb), 0.15), transparent),
        radial-gradient(ellipse 60% 50% at 90% 50%, rgba(139, 92, 246, 0.15), transparent);
}

.auth-container {
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-xl);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    margin-bottom: var(--spacing-2xl);
}

.auth-logo .logo-icon {
    font-size: 2rem;
}

/* ============ Auth Card ============ */
.auth-card {
    padding: var(--spacing-xl);
    animation: auth-card-enter 0.5s ease-out;
}

@keyframes auth-card-enter {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ============ Tab Switcher ============ */
.auth-tabs {
    display: flex;
    position: relative;
    margin-bottom: var(--spacing-xl);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: 4px;
}

.auth-tab {
    flex: 1;
    padding: 0.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-tertiary);
    background: transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    z-index: 1;
}

.auth-tab:hover:not(.active) {
    color: var(--text-secondary);
}

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

.auth-tab-indicator {
    position: absolute;
    top: 4px;
    left: 4px;
    width: calc(50% - 4px);
    height: calc(100% - 8px);
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-spring);
}

.auth-tabs:has(#signupTab.active) .auth-tab-indicator {
    transform: translateX(100%);
}

/* ============ Auth Forms ============ */
.auth-form {
    animation: form-fade 0.3s ease-out;
}

@keyframes form-fade {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.form-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.form-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.form-header p {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.back-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Input Wrapper */
.input-wrapper {
    position: relative;
}

.input-wrapper .input-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    pointer-events: none;
}

.input-wrapper input {
    padding-left: 2.75rem;
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

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

.input-hint {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* Password Strength Indicator */
.password-strength {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

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

.strength-bar::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.password-strength[data-strength="weak"] .strength-bar::after {
    width: 25%;
    background: var(--accent-danger);
}

.password-strength[data-strength="fair"] .strength-bar::after {
    width: 50%;
    background: var(--accent-warning);
}

.password-strength[data-strength="good"] .strength-bar::after {
    width: 75%;
    background: var(--accent-success);
}

.password-strength[data-strength="strong"] .strength-bar::after {
    width: 100%;
    background: var(--accent-success);
}

.strength-text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
    min-width: 50px;
    text-align: right;
}

.password-strength[data-strength="weak"] .strength-text { color: var(--accent-danger); }
.password-strength[data-strength="fair"] .strength-text { color: var(--accent-warning); }
.password-strength[data-strength="good"] .strength-text { color: var(--accent-success); }
.password-strength[data-strength="strong"] .strength-text { color: var(--accent-success); }

/* Form Options */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.checkbox-wrapper input {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

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

.checkbox-custom::after {
    content: '✓';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-spring);
}

.checkbox-wrapper input:checked + .checkbox-custom::after {
    opacity: 1;
    transform: scale(1);
}

.forgot-link {
    font-size: 0.9rem;
    color: var(--accent-primary);
}

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

/* Auth Messages */
.auth-error,
.auth-success {
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    animation: message-enter 0.3s ease-out;
}

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

.auth-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-danger);
}

.auth-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-success);
}

/* ============ Auth Divider ============ */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

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

.auth-divider span {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ============ Social Buttons ============ */
.social-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.social-btn:hover {
    background: var(--bg-elevated);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.social-icon {
    width: 20px;
    height: 20px;
}

/* ============ Auth Footer ============ */
.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ============ Responsive ============ */
@media (max-width: 480px) {
    .auth-container {
        padding: var(--spacing-md);
    }
    
    .auth-card {
        padding: var(--spacing-lg);
    }
    
    .auth-logo {
        font-size: 1.5rem;
    }
    
    .social-buttons {
        flex-direction: column;
    }
    
    .form-options {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
}