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;
}

.cover-section {
    flex: 1.4;
    position: relative;
    overflow: hidden;
    height: 100vh;
}

.bg-background {
    position: relative;
    width: 100%;
    height: 100%;
    background-image: url('../images/login_form.jpg');
    background-size: cover;
    background-position: center;
    animation: zoomIn 12s infinite alternate ease-in-out;
}

@keyframes zoomIn {
    0% {
        transform: scale(1.15) translateX(0%);
    }
    100% {
        transform: scale(1.05) translateX(0.5%);
    }
}

.cover-section::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(248, 243, 239, 0.4) 0%,
        rgba(216, 192, 195, 0.45) 50%,
        rgba(108, 66, 46, 0.6) 100%
    );
    z-index: 1;
}

.form-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2rem;
    background-color: var(--ecard-surface);
    border-left: 1px solid var(--ecard-border-soft);
    position: relative;
    z-index: 2;
}

.form-container {
    max-width: 400px;
    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);
}

.btn-line {
    background-color: #06C755;
    color: #ffffff !important;
    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(6, 199, 85, 0.25);
    border: none;
}

.btn-line:hover {
    background-color: #05a546;
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(6, 199, 85, 0.35);
}

.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;
}

#registerForm {
    display: none;
}

.divider-text {
    position: relative;
    text-align: center;
    margin-top: 1.25rem;
    margin-bottom: 1.25rem;
}

.divider-text span {
    padding: 4px 14px;
    font-size: 0.8rem;
    position: relative;
    z-index: 2;
    background-color: var(--ecard-surface-soft);
    color: var(--ecard-text-secondary);
    border-radius: var(--ecard-radius-pill);
    border: 1px solid var(--ecard-border-soft);
}

.divider-text:after {
    content: "";
    position: absolute;
    width: 100%;
    border-bottom: 1px solid var(--ecard-border);
    top: 50%;
    left: 0;
    z-index: 1;
}

@media (max-width: 992px) {
    .cover-section {
        display: none;
    }
    .form-section {
        flex: 1 1 100%;
        min-height: 100vh;
        background-color: var(--ecard-background);
    }
}