:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #0f172a;
    --muted: #64748b;
    --border: #dbe3ef;
    --background: #f8fafc;
    --white: #ffffff;
    --danger: #dc2626;
    --success-bg: #ecfdf5;
    --success-text: #065f46;
    --error-bg: #fef2f2;
    --error-text: #991b1b;
    --purple: #7c3aed;
    --cyan: #06b6d4;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, "Microsoft JhengHei", "PingFang TC", sans-serif;
    color: var(--secondary);
    line-height: 1.6;
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.22), transparent 32%),
        radial-gradient(circle at top right, rgba(124, 58, 237, 0.18), transparent 28%),
        linear-gradient(135deg, #eff6ff 0%, #f8fafc 45%, #eef2ff 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(15, 23, 42, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 23, 42, 0.035) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: linear-gradient(to bottom, black, transparent 70%);
}

.page-wrapper {
    min-height: 100vh;
    padding: 48px 16px;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
}

.header-card {
    position: relative;
    overflow: hidden;
    color: #ffffff;
    border-radius: 30px;
    padding: 52px 44px;
    margin-bottom: 28px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.98), rgba(124, 58, 237, 0.92)),
        linear-gradient(45deg, #2563eb, #7c3aed);
    box-shadow: 0 28px 80px rgba(37, 99, 235, 0.28);
}

.header-card::before {
    content: "";
    position: absolute;
    width: 280px;
    height: 280px;
    right: -80px;
    top: -90px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
}

.header-card::after {
    content: "";
    position: absolute;
    width: 180px;
    height: 180px;
    right: 120px;
    bottom: -90px;
    border-radius: 50%;
    background: rgba(6, 182, 212, 0.22);
}

.header-card > * {
    position: relative;
    z-index: 1;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 14px;
    margin-bottom: 14px;
}

.brand::before {
    content: "";
    width: 11px;
    height: 11px;
    border-radius: 999px;
    background: #22d3ee;
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.9);
}

h1 {
    margin: 0 0 16px;
    font-size: 42px;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #ffffff;
}

.intro {
    margin: 0;
    color: rgba(255, 255, 255, 0.88);
    font-size: 18px;
    max-width: 760px;
}

.form-card {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    border-radius: 30px;
    padding: 42px;
    margin-bottom: 24px;
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
    border: 1px solid rgba(219, 227, 239, 0.95);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 28px;
    font-size: 25px;
    color: var(--secondary);
}

.section-title::before {
    content: "";
    width: 8px;
    height: 28px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--primary), var(--purple));
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 26px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full {
    grid-column: 1 / -1;
}

label,
.field-label {
    font-weight: 800;
    margin-bottom: 8px;
    color: #1e293b;
}

.required {
    color: var(--danger);
    margin-left: 3px;
}

.form-control {
    width: 100%;
    border: 1px solid #d7dfec;
    border-radius: 16px;
    padding: 14px 16px;
    font-size: 16px;
    font-family: inherit;
    color: var(--secondary);
    background: #ffffff;
    outline: none;
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.035);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.form-control:hover {
    border-color: #b7c6dc;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow:
        0 0 0 4px rgba(37, 99, 235, 0.13),
        0 12px 28px rgba(37, 99, 235, 0.12);
    transform: translateY(-1px);
}

textarea.form-control {
    min-height: 140px;
    resize: vertical;
}

.hint {
    margin-top: 8px;
    color: var(--muted);
    font-size: 14px;
}

.choice-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 6px;
}

.choice-list td {
    padding-right: 14px;
    padding-bottom: 8px;
}

.choice-list input {
    margin-right: 7px;
    accent-color: var(--primary);
}

.choice-list label {
    font-weight: 500;
    margin-bottom: 0;
}

.validator {
    color: var(--danger);
    font-size: 14px;
    margin-top: 7px;
    display: block;
}

.message-panel {
    margin-bottom: 24px;
    padding: 18px 20px;
    border-radius: 18px;
    font-weight: 700;
}

.message-panel.success {
    background: var(--success-bg);
    color: var(--success-text);
    border: 1px solid #bbf7d0;
}

.message-panel.error {
    background: var(--error-bg);
    color: var(--error-text);
    border: 1px solid #fecaca;
}

.consent-box {
    background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(124, 58, 237, 0.06));
    border: 1px solid #d7dfec;
    border-radius: 18px;
    padding: 18px;
}

.consent-box input {
    accent-color: var(--primary);
}

.consent-box label {
    font-weight: 500;
}

.actions {
    margin-top: 32px;
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.btn-primary {
    border: none;
    border-radius: 999px;
    padding: 16px 34px;
    font-size: 17px;
    font-weight: 800;
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), var(--purple));
    cursor: pointer;
    box-shadow: 0 16px 34px rgba(37, 99, 235, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 42px rgba(37, 99, 235, 0.38);
    filter: brightness(1.04);
}

.btn-primary:active {
    transform: translateY(0);
}

.small-note {
    color: var(--muted);
    font-size: 14px;
}

/* ASP.NET RadioButtonList / CheckBoxList sometimes renders as table */
.choice-list table,
.choice-list tbody,
.choice-list tr {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.choice-list td {
    display: inline-flex;
    align-items: center;
}

@media (max-width: 720px) {
    .page-wrapper {
        padding: 22px 12px;
    }

    .header-card,
    .form-card {
        padding: 26px;
        border-radius: 22px;
    }

    h1 {
        font-size: 31px;
    }

    .intro {
        font-size: 16px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-primary {
        width: 100%;
    }
}