:root {
    --navy: #0d1b3e;
    --sky: #7cb4d7;
    --gold: #fce116;
    --magenta: #c71585;
    --ink: #243044;
    --muted: #5c6778;
    --line: #e3e8f0;
    --paper: #f3f6fa;
    --white: #fff;
    --danger: #b4234a;
}

* { box-sizing: border-box; }

.form-page {
    color: var(--ink);
    background:
        radial-gradient(720px 280px at 50% -40px, rgba(124, 180, 215, .45), transparent 70%),
        var(--paper);
    padding: 36px 0 72px;
}

.preview-banner {
    background: var(--navy);
    color: #fff;
    text-align: center;
    padding: 12px 16px;
    font-size: .86rem;
    font-weight: 600;
}
.preview-banner a {
    color: var(--gold);
    margin-left: 10px;
    font-weight: 700;
}

.form-page .wrap {
    width: min(760px, calc(100% - 32px));
    margin: 0 auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    color: inherit;
    text-decoration: none;
}
.brand img {
    height: 44px;
    width: auto;
    border-radius: 8px;
}
.brand strong {
    display: block;
    font-size: .95rem;
    letter-spacing: .01em;
}
.brand span {
    display: block;
    margin-top: 2px;
    color: var(--muted);
    font-size: .75rem;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.panel {
    background: var(--white);
    border: 1px solid var(--line); 
    border-radius: 18px;
    padding: 32px 28px 26px;
    box-shadow: 0 22px 50px rgba(13, 27, 62, .08);
}

h1 {
    margin: 0 0 10px;
    font-size: clamp(1.7rem, 3vw, 2.15rem);
    line-height: 1.2;
    letter-spacing: -.02em;
    color: var(--navy);
}
.intro {
    margin: 0 0 24px;
    color: var(--muted);
    line-height: 1.6;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px 16px;
}
.span-2 { grid-column: span 2; }
.field.is-hidden { display: none; }

.lbl {
    display: block;
    margin-bottom: 8px;
    font-size: .84rem;
    font-weight: 700;
    color: var(--navy);
}
.req { color: var(--magenta); margin-left: 2px; }
.help {
    margin: 8px 0 0;
    color: var(--muted);
    font-size: .8rem;
    line-height: 1.45;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
input[type="file"],
select,
textarea {
    width: 100%;
    border: 1px solid #d5dce6;
    border-radius: 12px;
    padding: 13px 14px;
    font: inherit;
    font-size: .95rem;
    color: var(--ink);
    background: #fbfcfe;
    transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
textarea { min-height: 132px; resize: vertical; }
select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--navy) 50%), linear-gradient(135deg, var(--navy) 50%, transparent 50%);
    background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
    padding-right: 36px;
}
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--navy);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(13, 27, 62, .12);
}
input[type="file"] {
    padding: 16px;
    border-style: dashed;
    background: #f7f9fc;
    cursor: pointer;
}
.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid textarea {
    border-color: var(--danger);
    background: #fff8fa;
}

.choices { display: grid; gap: 8px; }
.choice {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fbfcfe;
    font-weight: 600;
    cursor: pointer;
}
.choice:hover { border-color: #c5d0de; }
.choice:has(input:checked) {
    border-color: var(--navy);
    background: #f3f6fb;
    box-shadow: inset 0 0 0 1px var(--navy);
}
.choice input {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--navy);
    flex: 0 0 auto;
}

.field.is-layout:not(:first-child) {
    margin-top: 8px;
    padding-top: 18px;
    border-top: 1px solid #eef2f6;
}
.heading {
    margin: 0;
    font-size: 1.15rem;
    color: var(--navy);
}
.paragraph {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.error {
    margin-top: 6px;
    color: var(--danger);
    font-size: .8rem;
    font-weight: 600;
}
.alert {
    margin-bottom: 18px;
    padding: 12px 14px;
    border-radius: 12px;
    background: #fff1f4;
    color: var(--danger);
    font-weight: 600;
    font-size: .9rem;
}

.actions { margin-top: 22px; }
.submit {
    width: 100%;
    border: 0;
    border-radius: 12px;
    padding: 14px 18px;
    background: var(--navy);
    color: #fff;
    font: inherit;
    font-weight: 700;
    letter-spacing: .02em;
    cursor: pointer;
}
.submit:hover { background: #16284f; }
.submit:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.submit:disabled { opacity: .55; cursor: not-allowed; }
.fine {
    margin: 12px 0 0;
    text-align: center;
    color: var(--muted);
    font-size: .78rem;
}

.hp {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.done { text-align: center; padding: 42px 20px 36px; }
.mark {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #eef3fb;
    color: var(--navy);
    font-size: 1.7rem;
    font-weight: 800;
}
.done.is-closed .mark { background: #fff6d8; color: #8a6a00; }
.done .intro { margin-bottom: 0; }
.back {
    display: inline-block;
    margin-top: 18px;
    color: var(--navy);
    font-weight: 700;
    text-decoration: none;
}
.back:hover { color: var(--magenta); }

@media (max-width: 700px) {
    .form-page { padding-top: 22px; }
    .form-page .wrap { width: min(100% - 24px, 760px); }
    .grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
    .panel { padding: 24px 16px 20px; border-radius: 16px; }
    .done { padding: 32px 8px 24px; }
}