/* =============================================================
   Future Plans — Login & Register Page Styles
   ============================================================= */

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    padding: var(--space-md);
    position: relative;
    overflow: hidden;
}

/* Animated gradient background */
.auth-page::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, hsla(239, 84%, 67%, 0.12) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: authFloat 20s ease-in-out infinite;
}

.auth-page::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, hsla(280, 70%, 55%, 0.08) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation: authFloat 15s ease-in-out infinite reverse;
}

@keyframes authFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.05); }
}

.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
    padding: var(--space-2xl);
    position: relative;
    z-index: 1;
    animation: authCardIn 0.5s var(--ease-bounce);
}

@keyframes authCardIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.auth-card__brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.auth-card__logo {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary), hsl(280, 70%, 55%));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    color: var(--color-text-inverse);
    margin-bottom: var(--space-md);
    box-shadow: 0 4px 20px hsla(239, 84%, 67%, 0.3);
}

.auth-card__title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-2xs);
}

.auth-card__subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.auth-card .form-group {
    margin-bottom: var(--space-lg);
}

.auth-card .form-input {
    padding: var(--space-md);
    font-size: var(--text-sm);
}

.auth-card .btn--primary {
    width: 100%;
    padding: var(--space-md);
    font-size: var(--text-md);
    font-weight: var(--weight-semibold);
}

.auth-card__footer {
    text-align: center;
    margin-top: var(--space-lg);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.auth-card__footer a {
    font-weight: var(--weight-semibold);
}

.auth-card__divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
    color: var(--color-text-muted);
    font-size: var(--text-xs);
}

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

/* Password toggle */
.password-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-xs);
    font-size: var(--text-sm);
    transition: color var(--duration-fast) var(--ease-default);
}

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

/* Error alert */
.auth-alert {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    margin-bottom: var(--space-lg);
    animation: shakeX 0.4s ease;
}

.auth-alert--error {
    background: var(--color-danger-light);
    color: var(--color-danger);
    border: 1px solid hsla(0, 84%, 60%, 0.2);
}

.auth-alert--success {
    background: var(--color-success-light);
    color: hsl(160, 84%, 25%);
    border: 1px solid hsla(160, 84%, 39%, 0.2);
}

@keyframes shakeX {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}