:root {
    color-scheme: light;
    --bg: #f4efe6;
    --bg-accent: #e1ebf5;
    --card: rgba(255, 255, 255, 0.88);
    --text: #1f2933;
    --muted: #5f6b76;
    --primary: #0f4c81;
    --primary-dark: #0a365b;
    --border: rgba(31, 41, 51, 0.12);
    --shadow: 0 24px 60px rgba(15, 76, 129, 0.12);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(15, 76, 129, 0.16), transparent 34%),
        radial-gradient(circle at top right, rgba(133, 84, 40, 0.14), transparent 26%),
        linear-gradient(160deg, var(--bg), var(--bg-accent));
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(rgba(255, 255, 255, 0.25) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.25) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), transparent 60%);
}

.survey-shell {
    width: min(960px, calc(100vw - 32px));
    margin: 40px auto;
    padding: 24px 0 48px;
}

.survey-header {
    margin-bottom: 20px;
}

.survey-brand {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--border);
}

.survey-brand-text {
    text-align: right;
}

.survey-logo {
    width: auto;
    height: 54px;
    max-width: min(220px, 46vw);
}

.brand-tag {
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.74rem;
    font-weight: 700;
}

.survey-card {
    position: relative;
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 28px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(8px);
    padding: 32px;
}

.survey-card::after {
    content: "";
    position: absolute;
    inset: auto -20% -60% auto;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(15, 76, 129, 0.1), transparent 65%);
}

.eyebrow {
    margin: 0 0 12px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    color: var(--primary);
    font-weight: 700;
}

h1 {
    margin: 0 0 12px;
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.05;
}

h2 {
    margin: 0 0 8px;
    font-size: 1.2rem;
}

.lead {
    margin: 0 0 24px;
    max-width: 62ch;
    font-size: 1.05rem;
    color: var(--muted);
    line-height: 1.6;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 0 0 24px;
}

.info-grid div,
.callout,
.answer-feedback {
    background: rgba(255, 255, 255, 0.74);
    border: 1px solid rgba(15, 76, 129, 0.12);
    border-radius: 18px;
    padding: 14px 16px;
}

.info-grid span {
    display: block;
    font-size: 0.82rem;
    color: var(--muted);
    margin-bottom: 4px;
}

.info-grid strong {
    font-size: 1rem;
}

.callout {
    margin: 0 0 24px;
}

.callout ul {
    margin: 12px 0 0;
    padding-left: 20px;
}

.callout li + li {
    margin-top: 6px;
}

.callout code {
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.92rem;
    background: rgba(15, 76, 129, 0.08);
    padding: 2px 6px;
    border-radius: 6px;
}

.survey-body {
    margin: 0 0 24px;
    line-height: 1.6;
}

.survey-body p {
    margin: 0 0 12px;
}

.question-form {
    display: grid;
    gap: 18px;
}

fieldset {
    margin: 0;
    padding: 0;
    border: 0;
}

legend {
    margin-bottom: 12px;
    font-weight: 700;
}

label {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    margin-bottom: 10px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(31, 41, 51, 0.12);
    border-radius: 14px;
    cursor: pointer;
}

label:hover {
    border-color: rgba(15, 76, 129, 0.28);
}

input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.primary-button,
.secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    border: 1px solid transparent;
    transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.primary-button {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 12px 30px rgba(15, 76, 129, 0.24);
}

.primary-button:hover,
.secondary-button:hover {
    transform: translateY(-1px);
}

.primary-button:hover {
    background: var(--primary-dark);
}

.secondary-button {
    background: rgba(255, 255, 255, 0.78);
    color: var(--text);
    border-color: rgba(31, 41, 51, 0.12);
}

.answer-feedback {
    margin-bottom: 18px;
    color: var(--primary-dark);
    font-weight: 600;
}

@media (max-width: 720px) {
    .survey-shell {
        width: min(100vw - 20px, 960px);
        margin: 16px auto;
    }

    .survey-card {
        padding: 22px;
        border-radius: 22px;
    }

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

    .survey-brand {
        flex-direction: column;
        align-items: flex-start;
    }

    .survey-brand-text {
        text-align: left;
    }

    .button-row {
        flex-direction: column;
    }

    .primary-button,
    .secondary-button {
        width: 100%;
    }
}