/* VAIL site design system: the Agent Assurance Engine's calibration-certificate
   look at website scale. Shared by every page built on it; page-specific
   layout stays inline on each page. */

@font-face {
    font-family: "Public Sans";
    src: url("/assets/fonts/public-sans-latin-wght-normal.woff2") format("woff2-variations");
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "Public Sans";
    src: url("/assets/fonts/public-sans-latin-wght-italic.woff2") format("woff2-variations");
    font-weight: 100 900;
    font-style: italic;
    font-display: swap;
}
@font-face {
    font-family: "Charis SIL";
    src: url("/assets/fonts/charis-sil-latin-400-normal.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "Charis SIL";
    src: url("/assets/fonts/charis-sil-latin-700-normal.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "JetBrains Mono";
    src: url("/assets/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2-variations");
    font-weight: 100 800;
    font-style: normal;
    font-display: swap;
}

:root {
    color-scheme: light;
    --ground: #F4F3EF;
    --sheet: #FDFDFB;
    --field: #FFFFFF;
    --tray: #F8F7F3;
    --ink: #14213D;
    --ink-2: #3A465C;
    --ink-3: #5B6678;
    --rule: #DAD6CD;
    --rule-2: #E9E5DD;
    --rule-ink: #14213D;
    --control: #AEB6C2;
    --pass: #2F6F5E;
    --fail: #9B2226;
    --caution: #8A5A0B;
    --pass-wash: #E6EFEB;
    --fail-wash: #F6E8E8;
    --caution-wash: #F4EDDC;
    --focus: #2B59C3;
    --primary-hover: #22345C;
    --scrim: rgba(20, 33, 61, 0.38);
    --tip-shadow: 0 12px 40px rgba(20, 33, 61, 0.18);

    /* Signal orange. Bright enough to carry navy text on buttons; the deeper
       shade is for orange text on paper, the middle one for drawn marks. */
    --action: #F26A2E;
    --action-hover: #F47A3C;
    --action-ink: #14213D;
    --accent: #E25822;
    --accent-text: #B4441A;
    --accent-wash: #FBE7DC;

    --sans: "Public Sans", ui-sans-serif, system-ui, sans-serif;
    --serif: "Charis SIL", Charter, Georgia, "Times New Roman", serif;
    --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    --radius: 3px;
    --measure: 1180px;
    --gutter: 32px;
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --ground: #0D121B;
    --sheet: #131A26;
    --field: #0F1520;
    --tray: #101723;
    --ink: #E7EAF0;
    --ink-2: #C3CAD6;
    --ink-3: #97A0AF;
    --rule: #2B3446;
    --rule-2: #222B3B;
    --rule-ink: #9AA5B8;
    --control: #4A5569;
    --pass: #79C4AB;
    --fail: #F0949A;
    --caution: #DDB162;
    --pass-wash: rgba(121, 196, 171, 0.12);
    --fail-wash: rgba(240, 148, 154, 0.12);
    --caution-wash: rgba(221, 177, 98, 0.12);
    --focus: #8DB0FF;
    --primary-hover: #FFFFFF;
    --scrim: rgba(3, 6, 12, 0.6);
    --tip-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    --action: #F47A3C;
    --action-hover: #F68F59;
    --action-ink: #0D121B;
    --accent: #F47A3C;
    --accent-text: #F6935F;
    --accent-wash: rgba(244, 122, 60, 0.14);
}

/* ── Base ─────────────────────────────────────── */

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
    margin: 0;
    font: 400 16px/1.6 var(--sans);
    background: var(--ground);
    color: var(--ink);
    caret-color: var(--ink);
    scrollbar-color: var(--control) transparent;
    -webkit-font-smoothing: antialiased;
    overflow-wrap: break-word;
}
::selection { background: color-mix(in srgb, var(--focus) 22%, transparent); color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
input, textarea, button { accent-color: var(--ink); }

a {
    color: var(--ink);
    text-decoration: underline;
    text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: text-decoration-color 120ms ease-out, color 120ms ease-out;
}
a:hover { color: var(--accent-text); text-decoration-color: currentColor; }

h1, h2, h3 { color: var(--ink); text-wrap: balance; margin: 0; }
p { margin: 0; }
.num, table { font-variant-numeric: tabular-nums; }
.visually-hidden {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.wrap { max-width: var(--measure); margin: 0 auto; padding: 0 var(--gutter); }

.vail-mark { width: 22px; height: 22px; flex: none; color: var(--ink); }

/* ── Buttons ──────────────────────────────────── */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 40px;
    padding: 8px 16px;
    font: inherit;
    font-size: 15px;
    font-weight: 560;
    line-height: 1.2;
    color: var(--ink);
    background: var(--sheet);
    border: 1px solid var(--control);
    border-radius: var(--radius);
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition: border-color 120ms ease-out, background-color 120ms ease-out, color 120ms ease-out;
}
.button:hover { border-color: var(--ink); }
.button.primary { background: var(--action); border-color: var(--action); color: var(--action-ink); }
.button.primary:hover { background: var(--action-hover); border-color: var(--action-hover); }
.button[disabled] { opacity: 0.6; cursor: progress; }
.button.small { min-height: 34px; padding: 6px 13px; font-size: 14px; }

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-right: auto;
    color: var(--ink);
    text-decoration: none;
    font-weight: 650;
    font-size: 16px;
    letter-spacing: 0.02em;
}

/* ── Sections ─────────────────────────────────── */

.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--rule); }
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px 32px; margin-bottom: 24px; }
.section-head h2 { font-size: 26px; line-height: 1.25; font-weight: 540; letter-spacing: -0.01em; }
.section-head p { color: var(--ink-2); margin-top: 8px; }

/* ── Subtitles and product icons ─────────────── */

.essay-sub strong { color: var(--ink); font-weight: 580; }
.essay-sub { font-size: 18px; line-height: 1.45; font-style: italic; color: var(--ink-2); margin-top: 10px; }
.line-icon { flex: none; display: block; color: var(--ink); }
.line-icon svg { display: block; width: 40px; height: 40px; fill: none; stroke: currentColor; stroke-width: 1.25; stroke-linecap: round; stroke-linejoin: round; }

/* ── Request ──────────────────────────────────── */

.request { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 32px 56px; align-items: start; }
.request h2 { font-size: 30px; line-height: 1.2; font-weight: 520; letter-spacing: -0.016em; }
.request-copy p { color: var(--ink-2); margin-top: 12px; max-width: 46ch; }
.request-copy .direct { margin-top: 20px; font-size: 15px; color: var(--ink-3); }

.request-form { background: var(--sheet); border: 1px solid var(--rule); border-radius: var(--radius); padding: 24px 26px 22px; }
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 14px; font-weight: 560; color: var(--ink); }
.field label span { color: var(--ink-3); font-weight: 450; }
.field input, .field textarea {
    width: 100%;
    font: inherit;
    font-size: 15px;
    color: var(--ink);
    background: var(--field);
    border: 1px solid var(--control);
    border-radius: var(--radius);
    padding: 9px 12px;
    transition: border-color 120ms ease-out;
}
.field textarea { resize: vertical; min-height: 76px; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-3); }
.field input:hover, .field textarea:hover { border-color: var(--ink-3); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--focus); box-shadow: 0 0 0 1px var(--focus); }
.field input[aria-invalid="true"] { border-color: var(--fail); }
.form-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; }
.form-note { color: var(--ink-3); font-size: 13.5px; }
.form-status { margin-top: 14px; font-size: 14.5px; padding: 10px 14px; border-radius: var(--radius); border: 1px solid var(--rule); }
.form-status[hidden] { display: none; }
.form-status.ok { color: var(--pass); background: var(--pass-wash); border-color: color-mix(in srgb, var(--pass) 40%, var(--rule)); }
.form-status.err { color: var(--fail); background: var(--fail-wash); border-color: color-mix(in srgb, var(--fail) 40%, var(--rule)); }
.request-form.sent .field, .request-form.sent .form-row { display: none; }

/* ── Footer ───────────────────────────────────── */

.foot { background: var(--sheet); border-top: 1px solid var(--rule); padding: 40px 0 28px; margin-top: 24px; font-size: 14.5px; }
.foot-grid { display: grid; grid-template-columns: 1.3fr repeat(5, minmax(0, 1fr)); gap: 28px; }
.foot li a, .foot-base a { overflow-wrap: normal; }
.foot-brand p { color: var(--ink-3); margin-top: 10px; max-width: 30ch; }
.foot h2 { font-size: 13px; font-weight: 560; color: var(--ink-3); margin: 0 0 10px; }
.foot ul { list-style: none; padding: 0; margin: 0; }
.foot li { margin-bottom: 6px; }
.foot li a { color: var(--ink-2); text-decoration: none; }
.foot li a:hover { color: var(--ink); text-decoration: underline; }
.foot-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-top: 32px; padding-top: 16px; border-top: 1px solid var(--rule-2); color: var(--ink-3); font-size: 13.5px; }
.foot-base a { color: var(--ink-3); text-decoration: none; }
.foot-base a:hover { color: var(--ink); text-decoration: underline; }
vail-footer { display: block; }

/* ── Responsive ───────────────────────────────── */

@media (max-width: 980px) {
    .request { grid-template-columns: 1fr; }
    .foot-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .foot-brand { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
    :root { --gutter: 20px; }
    .section { padding: 44px 0; }
    .request-form { padding: 20px; }
    .foot-grid { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}