/* ================= Landing page ================= */
:root {
    --primary: #2f6fed;
    --primary-dark: #1f56c9;
    --primary-soft: #eaf1ff;
    --navy: #1b2a52;
    --text: #3a4466;
    --muted: #7a84a3;
    --border: #d9dfec;
    --error: #d93025;
    --bg: #f3f6fb;
    --radius: 14px;
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
}

/* ---------- Banner ---------- */
.banner { width: 100%; line-height: 0; background: #dfe6f3; }
.banner picture, .banner-img { display: block; width: 100%; height: auto; }

/* ---------- Layout ---------- */
.container {
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
    padding: 28px 16px 48px;
}

.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: 0 6px 24px rgba(27, 42, 82, .08);
    padding: 28px 24px;
}

@media (min-width: 768px) {
    .container { padding-top: 40px; }
    .card { padding: 36px 40px; }
}

/* ---------- Form ---------- */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 18px;
    font-size: 18px;
    font-weight: 600;
    color: var(--navy);
}
.section-title span {
    display: inline-grid;
    place-items: center;
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
}
.section-title:not(:first-of-type) {
    margin-top: 30px;
    padding-top: 26px;
    border-top: 1px dashed var(--border);
}

.field { margin: 0 0 18px; }
fieldset.field { border: 0; padding: 0; min-width: 0; }

.field > label,
.field legend {
    display: block;
    margin-bottom: 7px;
    font-weight: 500;
    color: var(--navy);
    padding: 0;
}
.req { color: var(--error); }

input[type="text"],
input[type="tel"],
input[type="email"] {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    font: inherit;
    color: var(--navy);
    background: #fff;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
    -webkit-appearance: none;
    appearance: none;
}
input::placeholder { color: #a7afc6; }
input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(47, 111, 237, .15); }

.input-group { display: flex; }
.input-group .prefix {
    display: grid;
    place-items: center;
    padding: 0 12px;
    font-weight: 500;
    color: var(--muted);
    background: #f6f8fc;
    border: 1.5px solid var(--border);
    border-right: 0;
    border-radius: 10px 0 0 10px;
}
.input-group input { border-radius: 0 10px 10px 0; }

/* Radio options */
.options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    color: var(--navy);
    transition: border-color .15s, background .15s;
    user-select: none;
}
.option:hover { border-color: #a9bff0; }
.option input { margin: 0; width: 18px; height: 18px; flex: 0 0 18px; accent-color: var(--primary); }
.option:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.option:has(input:focus-visible) { box-shadow: 0 0 0 3px rgba(47, 111, 237, .2); }

@media (max-width: 420px) {
    .options { grid-template-columns: 1fr; }
}

/* Terms checkbox */
.terms { margin-top: 26px; }
.checkbox { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; }
.checkbox input { margin: 3px 0 0; width: 18px; height: 18px; flex: 0 0 18px; accent-color: var(--primary); }
.checkbox a { color: var(--primary); font-weight: 500; }

/* Errors */
.error { display: block; margin-top: 6px; font-size: 13px; color: var(--error); }
.is-invalid input[type="text"],
.is-invalid input[type="tel"],
.is-invalid input[type="email"],
.is-invalid .prefix,
.is-invalid .option { border-color: var(--error); }
.alert {
    margin-bottom: 20px;
    padding: 12px 14px;
    border-radius: 10px;
    background: #fdecea;
    color: var(--error);
    font-size: 14px;
}

/* Submit */
.btn-submit {
    display: block;
    width: 100%;
    height: 52px;
    margin-top: 8px;
    border: 0;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    font: inherit;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: .3px;
    cursor: pointer;
    transition: background .15s, transform .05s;
}
.btn-submit:hover { background: var(--primary-dark); }
.btn-submit:active { transform: translateY(1px); }
.btn-submit:disabled { opacity: .7; cursor: wait; }

/* ---------- Thank you ---------- */
.thank-you {
    text-align: center;
    padding: 48px 24px 52px;
    animation: pop .35s ease-out;
}
.tick-circle {
    display: grid;
    place-items: center;
    width: 76px;
    height: 76px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 8px 20px rgba(47, 111, 237, .3);
}
.thank-you h2 {
    margin: 0 0 8px;
    font-size: 26px;
    font-weight: 700;
    color: var(--navy);
}
.thank-you p {
    margin: 0;
    font-size: 16px;
    color: var(--text);
}
@keyframes pop {
    from { opacity: 0; transform: scale(.96); }
    to   { opacity: 1; transform: scale(1); }
}

/* ---------- Terms page ---------- */
.terms-page h1 { margin-top: 0; color: var(--navy); font-size: 24px; }
.terms-page h2 { color: var(--navy); font-size: 17px; margin: 22px 0 6px; }
.terms-page ol { padding-left: 20px; }
.back-link { display: inline-block; margin-top: 18px; color: var(--primary); font-weight: 500; text-decoration: none; }