/* ===== Shared Auth Page Layout (Login & Register) ===== */
.auth-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 160px);
    padding: 40px 20px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
}

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

.auth-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: var(--radius-lg);
    font-size: 24px;
    margin: 0 auto 16px;
}

.auth-header h2 {
    font-size: 1.5rem;
    margin-bottom: 6px;
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 7px;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-sans);
    outline: none;
    transition: var(--transition);
    box-sizing: border-box;
}

.form-group input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.auth-submit {
    width: 100%;
    padding: 13px;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 4px;
}

.auth-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 24px var(--accent-glow);
}

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

.auth-error {
    display: none;
    margin-top: 16px;
    padding: 10px 14px;
    background: var(--color-danger-dim);
    border: 1px solid rgba(248, 113, 113, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-danger);
    font-size: 13px;
    text-align: center;
}

.auth-message {
    display: none;
    margin-top: 16px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 13px;
    text-align: center;
}

.auth-message.error {
    background: var(--color-danger-dim);
    border: 1px solid rgba(248, 113, 113, 0.2);
    color: var(--color-danger);
}

.auth-message.success {
    background: var(--color-success-dim);
    border: 1px solid rgba(52, 211, 153, 0.2);
    color: var(--color-success);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
    font-size: 13px;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--accent-primary-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.auth-footer a:hover {
    color: #fff;
}