:root {
    color-scheme: light;
    --ink: #15221f;
    --muted: #63706c;
    --line: #dce5e1;
    --paper: #ffffff;
    --canvas: #f3f7f5;
    --green: #0f7759;
    --green-dark: #095b43;
    --green-soft: #e3f3ed;
    --red: #a63f43;
    --shadow: 0 18px 50px rgba(24, 56, 46, .10);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--ink);
    background:
        radial-gradient(circle at 15% 10%, #dff3eb 0, transparent 28rem),
        var(--canvas);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

.topbar {
    min-height: 76px;
    padding: 14px clamp(20px, 5vw, 72px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, .9);
    border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand span:last-child { display: flex; flex-direction: column; }
.brand small { color: var(--muted); font-size: 12px; letter-spacing: .06em; }
.brand-mark {
    width: 42px; height: 42px; display: grid; place-items: center;
    color: white; background: var(--green); border-radius: 13px; font-size: 23px; font-weight: 800;
}

nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 24px; }
nav a { color: var(--muted); font-weight: 650; text-decoration: none; }
nav a:hover { color: var(--green); }

.page-shell { width: min(920px, calc(100% - 32px)); margin: auto; padding: 48px 0; }
.card { padding: clamp(24px, 5vw, 52px); background: var(--paper); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); }
.card.narrow { max-width: 640px; margin: 0 auto; }
.eyebrow { color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1 { margin: 10px 0 12px; font-size: clamp(30px, 5vw, 46px); letter-spacing: -.04em; }
.lead { margin: 0 0 30px; color: var(--muted); font-size: 17px; line-height: 1.55; }

.form-stack { display: grid; gap: 10px; }
label { font-size: 14px; font-weight: 750; }
input, select {
    width: 100%; padding: 15px 16px; color: var(--ink); background: #fbfdfc;
    border: 1px solid #bdcbc5; border-radius: 12px; font: inherit; outline: none;
}
input:focus, select:focus { border-color: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.button {
    display: inline-flex; min-height: 48px; padding: 0 22px; align-items: center; justify-content: center;
    border: 1px solid transparent; border-radius: 12px; font: inherit; font-weight: 750; text-decoration: none; cursor: pointer;
}
.form-stack .button { margin-top: 10px; }
.button.primary { color: white; background: var(--green); }
.button.primary:hover { background: var(--green-dark); }
.button.secondary { color: var(--ink); background: white; border-color: var(--line); }
.button.danger { color: var(--red); background: white; border-color: #e8c6c7; }
.validation { color: var(--red); font-size: 14px; line-height: 1.4; }
.validation:empty { display: none; }
.hint { margin: 24px 0 0; color: var(--muted); font-size: 13px; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.small { font-size: 13px; overflow-wrap: anywhere; }

.summary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; overflow: hidden; margin: 30px 0; background: var(--line); border: 1px solid var(--line); border-radius: 14px; }
.summary-grid > div { display: flex; flex-direction: column; gap: 7px; padding: 18px; background: #fbfdfc; }
.summary-grid span, .line-item small { color: var(--muted); font-size: 12px; }
.line-items { border-top: 1px solid var(--line); }
.line-item { display: flex; justify-content: space-between; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.line-item div { display: flex; flex-direction: column; gap: 5px; }
.line-item > span { font-weight: 750; white-space: nowrap; }
.allocations { display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 18px 0; color: var(--muted); font-size: 13px; }
.total { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 20px; background: var(--green-soft); border-radius: 14px; }
.total strong { color: var(--green-dark); font-size: 26px; }
.actions { display: flex; gap: 12px; margin-top: 28px; }
.actions form { flex: 1; }
.actions form .button { width: 100%; }
.actions.centered { justify-content: center; }

.result-card { text-align: center; }
.result-icon { width: 72px; height: 72px; display: grid; place-items: center; margin: 0 auto 20px; border-radius: 50%; font-size: 36px; font-weight: 800; }
.result-icon.success { color: var(--green-dark); background: var(--green-soft); }
.result-icon.failure { color: var(--red); background: #fae8e8; }
.result-details { display: grid; grid-template-columns: 140px 1fr; gap: 1px; overflow: hidden; margin: 28px 0; text-align: left; background: var(--line); border: 1px solid var(--line); border-radius: 14px; }
.result-details dt, .result-details dd { margin: 0; padding: 14px 16px; background: #fbfdfc; }
.result-details dt { color: var(--muted); }

.utility-card { padding: clamp(24px, 4vw, 44px); }
.api-console-form { max-width: 720px; }
.warning-note { margin: -12px 0 28px; padding: 14px 16px; color: #704b12; background: #fff6df; border: 1px solid #ead39d; border-radius: 12px; line-height: 1.5; }
.conditional-field { display: grid; gap: 10px; }
.conditional-field[hidden] { display: none; }
.field-row { grid-template-columns: 2fr 1fr; gap: 18px; }
.field-row > div { display: grid; gap: 10px; }
.console-result { margin-top: 30px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; }
.console-result.success { border-color: #aed8c9; }
.console-result.failure { border-color: #e8c6c7; }
.console-result-title { display: flex; justify-content: space-between; gap: 18px; padding: 16px 18px; background: #fbfdfc; }
.console-result.success .console-result-title { background: var(--green-soft); }
.console-result.failure .console-result-title { background: #fae8e8; }
.console-result p { padding: 0 18px; }
pre {
    margin: 0; padding: 18px; overflow: auto; color: #d7efe6; background: #14231f;
    font: 13px/1.55 ui-monospace, SFMono-Regular, Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere;
}
.journal-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 28px; }
.journal-heading .lead { margin-bottom: 0; }
.journal-actions { display: flex; gap: 10px; flex: 0 0 auto; }
.table-scroll { overflow-x: auto; margin-top: 28px; border: 1px solid var(--line); border-radius: 14px; }
.journal-table { width: 100%; border-collapse: collapse; background: white; }
.journal-table th, .journal-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
.journal-table tr:last-child td { border-bottom: 0; }
.journal-table th { color: var(--muted); background: #f7faf8; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.journal-table a, .detail-toolbar a, .console-result a { color: var(--green); font-weight: 700; text-decoration: none; }
.status-pill { display: inline-flex; padding: 5px 9px; border-radius: 999px; font-size: 12px; font-weight: 800; }
.status-pill.success { color: var(--green-dark); background: var(--green-soft); }
.status-pill.failure { color: var(--red); background: #fae8e8; }
.empty-state { display: grid; gap: 7px; margin-top: 28px; padding: 34px; text-align: center; color: var(--muted); background: #f8fbf9; border: 1px dashed #bdcbc5; border-radius: 14px; }
.empty-state strong { color: var(--ink); }
.detail-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.interaction-meta { display: grid; grid-template-columns: 150px 1fr; gap: 1px; overflow: hidden; margin: 28px 0; background: var(--line); border: 1px solid var(--line); border-radius: 14px; }
.interaction-meta dt, .interaction-meta dd { margin: 0; padding: 13px 16px; background: #fbfdfc; overflow-wrap: anywhere; }
.interaction-meta dt { color: var(--muted); }
.exchange-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.exchange-grid section { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; }
.exchange-grid h2 { margin: 0; padding: 18px; background: #f7faf8; border-bottom: 1px solid var(--line); }
.exchange-grid h3 { margin: 0; padding: 12px 18px; color: var(--muted); font-size: 12px; letter-spacing: .05em; text-transform: uppercase; }

footer { padding: 22px; color: var(--muted); text-align: center; font-size: 13px; }

@media (max-width: 640px) {
    .topbar { align-items: flex-start; gap: 18px; }
    nav { flex-direction: column; gap: 6px; text-align: right; font-size: 13px; }
    .page-shell { padding: 24px 0; }
    .summary-grid { grid-template-columns: 1fr; }
    .total { align-items: flex-start; flex-direction: column; }
    .actions { flex-direction: column; }
    .result-details { grid-template-columns: 1fr; }
    .result-details dt { padding-bottom: 4px; }
    .result-details dd { padding-top: 4px; }
    .field-row, .exchange-grid { grid-template-columns: 1fr; }
    .journal-heading, .console-result-title { flex-direction: column; }
    .journal-actions { width: 100%; flex-wrap: wrap; }
    .interaction-meta { grid-template-columns: 1fr; }
    .interaction-meta dt { padding-bottom: 4px; }
    .interaction-meta dd { padding-top: 4px; }
}