*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'DM Sans', sans-serif;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e8eaed; /* visible background behind the card */
    overflow: hidden;
}

.auth-card {
    display: flex;
    width: 900px; /* total card width */
    height: 600px; /* total card height */
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,.18);
}

/* ── Left panel ── */
.panel-image {
    flex: 1;
    position: relative;
    background: url('/images/resort-bg.jpg') center/cover no-repeat;
    display: flex;
    align-items: flex-end;
    padding: 2.5rem;
}

    .panel-image::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(0,0,0,.55) 0%, rgba(0,0,0,.10) 60%);
    }

.brand {
    position: relative;
    z-index: 1;
    font-family: 'Playfair Display', serif;
    font-size: 2.4rem;
    color: #fff;
    letter-spacing: -0.5px;
}

    .brand span {
        color: #4f8ef7;
    }

/* ── Right panel ── */
.panel-form {
    width: 420px;
    flex-shrink: 0;
    background: #f5f6f8;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2.8rem;
    overflow-y: auto;
}

.form-inner {
    width: 100%;
}

    .form-inner h1 {
        font-family: 'Playfair Display', serif;
        font-size: 1.9rem;
        color: #111;
        margin-bottom: 1.8rem;
    }

.field-group {
    margin-bottom: 1rem;
}

    .field-group label {
        display: block;
        font-size: .78rem;
        font-weight: 500;
        color: #555;
        margin-bottom: .35rem;
        letter-spacing: .04em;
        text-transform: uppercase;
    }

    .field-group input {
        width: 100%;
        padding: .65rem .9rem;
        border: 1.5px solid #dde1e8;
        border-radius: 8px;
        background: #fff;
        font-family: 'DM Sans', sans-serif;
        font-size: .92rem;
        color: #111;
        transition: border-color .2s;
        outline: none;
    }

        .field-group input:focus {
            border-color: #4f8ef7;
        }

        .field-group input.input-validation-error {
            border-color: #e53e3e;
        }

    .field-group .text-danger {
        font-size: .76rem;
        margin-top: .25rem;
        display: block;
    }

.name-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .75rem;
}

.pass-wrap {
    position: relative;
}

    .pass-wrap input {
        padding-right: 2.6rem;
    }

.pass-toggle {
    position: absolute;
    right: .75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    color: #aaa;
    line-height: 1;
}

.btn-register {
    width: 100%;
    padding: .75rem;
    background: #4f8ef7;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: .95rem;
    font-weight: 500;
    cursor: pointer;
    margin-top: 1.4rem;
    transition: background .2s, transform .1s;
}

    .btn-register:hover {
        background: #3a7be0;
    }

    .btn-register:active {
        transform: scale(.98);
    }

.login-link {
    text-align: center;
    margin-top: 1rem;
    font-size: .88rem;
    color: #666;
}

    .login-link a {
        color: #4f8ef7;
        text-decoration: none;
        font-weight: 500;
    }

        .login-link a:hover {
            text-decoration: underline;
        }

.validation-summary-errors ul {
    font-size: .8rem;
    padding-left: 1.1rem;
    margin-bottom: .75rem;
    color: #e53e3e;
}

.modal-content.error-modal {
    border: none;
    border-radius: 14px;
    overflow: hidden;
}

.error-modal .modal-header {
    background: #EF4444;
    color: #fff;
    border: none;
    padding: 1rem 1.25rem;
}

    .error-modal .modal-header .modal-title {
        font-weight: 700;
        font-size: 0.95rem;
    }

.error-modal .modal-body {
    padding: 1.25rem;
}

    .error-modal .modal-body p {
        margin: 0 0 0.4rem;
        font-size: 0.9rem;
    }

.error-modal .modal-footer {
    border: none;
    padding: 0.75rem 1.25rem;
}

@@media (max-width: 700px) {
    .panel-image {
        display: none;
    }

    .panel-form {
        width: 100%;
        padding: 2rem 1.5rem;
    }
}