/*
 * Sovereign Mail — shadcn-inspired design system, Union Jack palette.
 * Self-contained: no external fonts or CDN (sovereignty). System font stacks;
 * monospace leaned on for technical data to suit a developer audience.
 */
:root {
  --uk-blue: #012169;       /* Union flag blue */
  --uk-blue-700: #001a52;
  --uk-blue-50: #eef1f8;
  --uk-red: #c8102e;        /* Union flag red */
  --uk-red-600: #ac0c26;

  --background: #fbfbfd;
  --surface: #ffffff;
  --foreground: #0b1020;
  --muted: #f2f4f8;
  --muted-foreground: #5b6576;
  --border: #e4e7ee;
  --ring: var(--uk-blue);

  --primary: var(--uk-blue);
  --primary-foreground: #ffffff;
  --destructive: var(--uk-red);
  --destructive-foreground: #ffffff;

  --success: #0f7b3f;
  --success-bg: #e8f6ee;
  --warning: #9a6700;
  --warning-bg: #fdf4e3;
  --danger-bg: #fdecef;

  --radius: 10px;
  --radius-sm: 7px;
  --shadow-sm: 0 1px 2px rgba(11, 16, 32, .06), 0 1px 1px rgba(11, 16, 32, .04);
  --shadow: 0 4px 16px -4px rgba(11, 16, 32, .10), 0 2px 6px -2px rgba(11, 16, 32, .06);

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.55;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--uk-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 .5rem; }
h1 { font-size: 1.6rem; font-weight: 680; }
h2 { font-size: 1.2rem; font-weight: 650; }
p { margin: 0 0 1rem; }
code, .mono { font-family: var(--mono); font-size: .86em; }
.muted { color: var(--muted-foreground); }

/* ---- Top navigation (flag-stripe accent) ---- */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.86); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.nav::before { content: ""; display: block; height: 3px; background: linear-gradient(90deg, var(--uk-blue) 0 42%, #ffffff 42% 58%, var(--uk-red) 58% 100%); }
.nav-inner { max-width: 1040px; margin: 0 auto; padding: 0 20px; height: 60px; display: flex; align-items: center; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.02em; color: var(--foreground); font-size: 1.02rem; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 30px; height: 20px; border-radius: 4px; box-shadow: var(--shadow-sm); display: block; }
.nav-links { display: flex; gap: 4px; margin-left: 8px; flex: 1; flex-wrap: wrap; }
.nav-link { padding: 6px 11px; border-radius: var(--radius-sm); color: var(--muted-foreground); font-size: .9rem; font-weight: 500; }
.nav-link:hover { background: var(--muted); color: var(--foreground); text-decoration: none; }
.nav-link.active { background: var(--uk-blue-50); color: var(--uk-blue); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* ---- Layout ---- */
.container { max-width: 1040px; margin: 0 auto; padding: 36px 20px 80px; }
.container--narrow { max-width: 460px; }
.stack > * + * { margin-top: 18px; }
.caption { color: var(--muted-foreground); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 600; }

/* ---- Card ---- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.card-pad { padding: 24px; }
.card-title { font-size: 1.05rem; font-weight: 650; margin: 0; }
.card-desc { color: var(--muted-foreground); font-size: .9rem; margin: 4px 0 0; }

/* ---- Buttons ---- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: var(--radius-sm); border: 1px solid transparent; font: inherit; font-weight: 600; font-size: .92rem; cursor: pointer; transition: background .12s, border-color .12s, transform .04s; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--primary); color: var(--primary-foreground); }
.btn-primary:hover { background: var(--uk-blue-700); text-decoration: none; }
.btn-destructive { background: var(--destructive); color: #fff; }
.btn-destructive:hover { background: var(--uk-red-600); }
.btn-outline { background: var(--surface); border-color: var(--border); color: var(--foreground); }
.btn-outline:hover { background: var(--muted); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--muted-foreground); }
.btn-ghost:hover { background: var(--muted); color: var(--foreground); }
.btn-sm { height: 32px; padding: 0 11px; font-size: .84rem; }
.btn-block { width: 100%; }

/* ---- Forms ---- */
.field { margin-bottom: 18px; }
.label { display: block; font-weight: 600; font-size: .88rem; margin-bottom: 6px; }
.input, .textarea { width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; font: inherit; font-size: .92rem; color: var(--foreground); transition: border-color .12s, box-shadow .12s; }
.textarea { font-family: var(--mono); font-size: .85rem; }
.input:focus, .textarea:focus { outline: none; border-color: var(--ring); box-shadow: 0 0 0 3px rgba(1, 33, 105, .14); }
.hint { color: var(--muted-foreground); font-size: .82rem; margin-top: 6px; }
.field--error .input { border-color: var(--destructive); }
.field-error { color: var(--destructive); font-size: .82rem; margin: 6px 0 0; font-weight: 500; }

/* ---- Tables ---- */
.table-wrap { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th { text-align: left; padding: 11px 16px; background: var(--muted); color: var(--muted-foreground); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--border); }
.table td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table td .mono, .table td code { word-break: break-all; }

/* ---- Badges ---- */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; font-size: .76rem; font-weight: 600; line-height: 1.4; }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-destructive { background: var(--danger-bg); color: var(--destructive); }
.badge-muted { background: var(--muted); color: var(--muted-foreground); }
.badge-sovereign { background: var(--uk-blue); color: #fff; box-shadow: inset 0 0 0 2px rgba(255,255,255,.18); }
.badge-sovereign::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--uk-red); box-shadow: 0 0 0 2px #fff; }

/* ---- Alerts ---- */
.alert { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 20px; font-size: .9rem; }
.alert-title { font-weight: 650; margin: 0 0 2px; }
.alert-success { background: var(--success-bg); border-color: #b7e0c6; color: #0a5e30; }
.alert-error { background: var(--danger-bg); border-color: #f3c2cb; color: var(--uk-red-600); }
.alert-warning { background: var(--warning-bg); border-color: #f0dca8; color: #7a5200; }
.alert-error ul { margin: 6px 0 0; padding-left: 18px; }

/* ---- Code / panels ---- */
.code-block { background: #0b1020; color: #e6e9f2; border-radius: var(--radius); padding: 16px 18px; font-family: var(--mono); font-size: .82rem; line-height: 1.6; overflow-x: auto; border: 1px solid #1b2440; }
.code-block .tok-key { color: #7fa6ff; }
.code-block .tok-str { color: #8fd6a0; }
.panel { background: var(--uk-blue); color: #fff; border-radius: var(--radius); padding: 22px 24px; }
.panel h2 { color: #fff; }
.panel code { background: rgba(255,255,255,.14); padding: 2px 6px; border-radius: 5px; }

/* ---- Definition list (summary) ---- */
.summary { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.summary-row { display: flex; gap: 16px; padding: 13px 18px; border-bottom: 1px solid var(--border); }
.summary-row:last-child { border-bottom: none; }
.summary-key { width: 200px; color: var(--muted-foreground); font-size: .88rem; flex-shrink: 0; }
.summary-val { font-weight: 500; }

/* ---- Hero (landing) ---- */
.hero { padding: 64px 0 36px; }
.hero h1 { font-size: 2.6rem; font-weight: 720; max-width: 16ch; }
.hero .lede { font-size: 1.15rem; color: var(--muted-foreground); max-width: 52ch; }
.hero-actions { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px; border-radius: 999px; background: var(--uk-blue-50); color: var(--uk-blue); font-size: .82rem; font-weight: 600; margin-bottom: 20px; }

/* Small inline flag, sits next to text */
.flag-inline { width: 19px; height: 13px; border-radius: 2px; overflow: hidden; vertical-align: -2px; box-shadow: 0 0 0 1px rgba(11, 16, 32, .12); margin-right: 6px; flex-shrink: 0; }
th .flag-inline, h2 .flag-inline { margin-right: 5px; }
.qr { max-width: 200px; background: #fff; padding: 12px; border: 1px solid var(--border); border-radius: var(--radius); }
.row-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---- Clickable eyebrow ---- */
a.eyebrow { transition: background .12s, color .12s; }
a.eyebrow:hover { background: var(--uk-blue); color: #fff; text-decoration: none; }
.eyebrow-arrow { display: inline-block; transition: transform .12s; }
a.eyebrow:hover .eyebrow-arrow { transform: translateX(3px); }

/* ---- Prose (explainer pages) ---- */
.prose { max-width: 72ch; }
.prose h2 { margin-top: 30px; font-size: 1.25rem; }
.prose ul { padding-left: 20px; margin: 0 0 12px; }
.prose li { margin: 7px 0; }
.faq-item { padding: 14px 0; border-top: 1px solid var(--border); }
.faq-item h3 { font-size: 1rem; font-weight: 650; margin: 0 0 4px; }
.faq-item p { margin: 0; color: var(--muted-foreground); }

/* ---- Footer with trust badges ---- */
.footer { border-top: 1px solid var(--border); background: var(--surface); margin-top: 64px; }
.footer-inner { max-width: 1040px; margin: 0 auto; padding: 30px 20px; display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center; }
.footer-badges { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.trust-badge { display: inline-flex; align-items: center; height: 46px; padding: 0 18px; border-radius: 9px; font-size: .82rem; font-weight: 700; letter-spacing: -0.01em; border: 1px solid var(--border); color: var(--foreground); background: var(--surface); transition: border-color .12s, color .12s, transform .04s; }
a.trust-badge:hover { border-color: var(--uk-blue); color: var(--uk-blue); text-decoration: none; }
a.trust-badge:active { transform: translateY(1px); }
.trust-badge--sovereign { border: 1px solid var(--uk-blue); background: var(--uk-blue); color: #fff; }
a.trust-badge--sovereign:hover { color: #fff; border-color: var(--uk-blue-700); background: var(--uk-blue-700); }
.trust-badge--sovereign::before { content: ""; width: 10px; height: 10px; border-radius: 2px; background: var(--uk-red); box-shadow: 0 0 0 2px #fff; margin-right: 9px; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }
.footer-links a { color: var(--muted-foreground); font-size: .85rem; }
.footer-note { color: var(--muted-foreground); font-size: .8rem; margin: 0; }

/* ---- Admin subnav + stat cards ---- */
/* Primary customer nav — a light sticky bar just below the 60px main header,
   carrying the app sections. Mirrors the admin bar's structure/mechanism. */
.customer-bar { position: sticky; top: 60px; z-index: 19; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.customer-bar-inner { max-width: 1040px; margin: 0 auto; padding: 0 20px; min-height: 46px; display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.customer-bar-link { padding: 6px 11px; border-radius: var(--radius-sm); color: var(--muted-foreground); font-size: .9rem; font-weight: 500; }
.customer-bar-link:hover { background: var(--muted); color: var(--foreground); text-decoration: none; }
.customer-bar-link.active { background: var(--uk-blue-50); color: var(--uk-blue); }

/* Operator sub-nav — deliberately dark so admin chrome is unmistakably distinct
   from the light customer nav above it. Stacks below the 60px header + 46px bar. */
.admin-bar { position: sticky; top: 106px; z-index: 18; background: #161c2c; border-bottom: 1px solid #2b344a; }
.admin-bar-inner { max-width: 1040px; margin: 0 auto; padding: 0 20px; min-height: 44px; display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.admin-bar-tag { font-size: .66rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: #161c2c; background: #f5b301; border-radius: var(--radius-sm); padding: 3px 8px; margin-right: 12px; }
.admin-bar-link { padding: 6px 11px; border-radius: var(--radius-sm); color: #c3cbdb; font-size: .9rem; font-weight: 500; }
.admin-bar-link:hover { background: rgba(255,255,255,.08); color: #fff; text-decoration: none; }
.admin-bar-link.active { background: rgba(245,179,1,.16); color: #ffd479; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.stat-num { font-size: 1.8rem; font-weight: 700; letter-spacing: -0.02em; }
.stat-label { color: var(--muted-foreground); font-size: .82rem; margin-top: 2px; }

/* ---- Pricing ---- */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; align-items: start; }
.pricing-card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.pricing-card--highlight { border-color: var(--uk-blue); box-shadow: 0 0 0 1px var(--uk-blue), var(--shadow); }
.pricing-ribbon { position: absolute; top: -11px; left: 24px; background: var(--uk-blue); color: #fff; font-size: .72rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.pricing-name { font-size: 1.1rem; font-weight: 650; margin: 0; }
.price { font-size: 2.2rem; font-weight: 720; letter-spacing: -0.03em; margin: 6px 0 0; }
.price-per { font-size: 1rem; font-weight: 500; color: var(--muted-foreground); }
.pricing-features { list-style: none; padding: 0; margin: 18px 0 0; border-top: 1px solid var(--border); padding-top: 16px; }
.pricing-features li { position: relative; padding: 5px 0 5px 22px; font-size: .88rem; }
.pricing-features li::before { content: "✓"; position: absolute; left: 0; color: var(--uk-blue); font-weight: 700; }

/* ---- Neutral informational note (transparency) ---- */
.note { background: var(--uk-blue-50); border-left: 3px solid var(--uk-blue); border-radius: var(--radius-sm); padding: 12px 16px; margin-bottom: 20px; font-size: .9rem; }
.note-title { font-weight: 650; margin: 0 0 3px; }
.note p:last-child { margin-bottom: 0; }

/* ---- Landing: pricing calculator + steps ---- */
.calc { max-width: 560px; margin: 44px auto 0; text-align: center; }
.calc-slider { width: 100%; margin: 16px 0 10px; accent-color: var(--uk-blue); height: 6px; cursor: pointer; }
.calc-result { display: flex; justify-content: center; align-items: baseline; gap: 12px; margin: 6px 0; }
.calc-plan { font-size: 1.15rem; font-weight: 700; color: var(--uk-blue); }
.calc-price { font-size: 2rem; font-weight: 720; letter-spacing: -0.02em; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; margin-top: 22px; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; text-align: center; box-shadow: var(--shadow-sm); }
.step-n { width: 34px; height: 34px; border-radius: 50%; background: var(--uk-blue); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; margin-bottom: 10px; }
.step h3 { font-size: 1rem; margin: 0 0 4px; }

/* ---- Message activity timeline ---- */
.timeline { list-style: none; padding: 0; margin: 10px 0 0; border-left: 2px solid var(--border); }
.timeline li { position: relative; padding: 8px 0 8px 18px; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: 14px; width: 10px; height: 10px; border-radius: 50%; background: var(--uk-blue); border: 2px solid var(--surface); }

/* ---- Footer resources row ---- */
.footer-resources { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.footer-resources a { color: var(--foreground); font-size: .85rem; font-weight: 500; }
.footer-resources a:hover { color: var(--uk-blue); }