body, html {
    height: 100%;
    margin: 0;
    font-family: var(--app-font-family, "LINE Seed Sans TH", "IBM Plex Sans Thai", sans-serif);
    background-color: var(--ecard-background);
    color: var(--ecard-text-heading);
}

.main-container {
    display: flex;
    min-height: 100vh;
}

.form-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2rem;
    background-color: var(--ecard-surface);
}

.form-container {
    max-width: 420px;
    width: 100%;
}

.form-container h3 {
    font-family: 'Playfair Display', 'IBM Plex Sans Thai', serif;
    color: var(--ecard-text-heading);
    font-weight: 700;
}

.form-label {
    color: var(--ecard-text-heading);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-control {
    border-color: var(--ecard-border);
    border-radius: var(--ecard-radius-sm);
    padding: 0.65rem 0.9rem;
    color: var(--ecard-text-heading);
    background-color: var(--ecard-surface-white);
    transition: all 0.2s ease;
}

.form-control:focus {
    border-color: var(--ecard-primary);
    box-shadow: var(--ecard-focus-ring);
    background-color: #ffffff;
}

.btn-custom {
    background-color: var(--ecard-primary);
    color: #ffffff !important;
    border: none;
    border-radius: var(--ecard-radius-pill);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px rgba(93, 58, 42, 0.2);
}

.btn-custom:hover, .btn-custom:focus-visible {
    background-color: var(--ecard-primary-dark);
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(93, 58, 42, 0.28);
}

.toggle-link {
    cursor: pointer;
    color: var(--ecard-text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

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