/* tonnagecalc.com — XCommand dark cyber dashboard visual language */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
  --bg: #050B14;
  --card: #0A111E;
  --cyan: #00D2FF;
  --success: #00FF88;
  --purple: #BD00FF;
  --text: #FFFFFF;
  --muted: #8A94A6;
  --border: #1A2233;
  --radius: 12px;
  --sidebar-w: 260px;
  --glow: 0 0 18px rgba(0, 210, 255, 0.35);
  --glow-soft: 0 0 12px rgba(0, 210, 255, 0.2);
  --ink: var(--text);
  --paper: var(--bg);
  --line: var(--border);
  --clay: var(--cyan);
  --clay-dark: #00a8cc;
  --lagoon: var(--cyan);
  --lagoon-dark: #00a8cc;
  --warn: #ffb020;
  --ok: var(--success);
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); }
a:hover { color: #5ce1ff; }

/* —— App shell —— */
.app-shell {
  display: flex;
  min-height: 100vh;
  background: var(--bg);
}
.sidebar {
  position: sticky;
  top: 0;
  align-self: flex-start;
  width: var(--sidebar-w);
  height: 100vh;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: #070e1a;
  border-right: 1px solid var(--border);
  padding: 18px 14px;
  z-index: 40;
  overflow-y: auto;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  padding: 6px 8px 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(0,210,255,0.25), rgba(189,0,255,0.15));
  border: 1px solid rgba(0,210,255,0.45);
  box-shadow: var(--glow-soft);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--cyan);
  letter-spacing: -0.04em;
  flex-shrink: 0;
}
.sidebar-brand b {
  display: block;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}
.sidebar-brand span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.side-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.side-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--muted);
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: color 0.15s, background 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.side-nav a:hover {
  color: var(--text);
  background: rgba(0, 210, 255, 0.06);
}
.side-nav a[aria-current="page"] {
  color: var(--cyan);
  background: rgba(0, 210, 255, 0.1);
  border-color: rgba(0, 210, 255, 0.35);
  box-shadow: var(--glow-soft);
}
.nav-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
}
.side-nav a[aria-current="page"] .nav-dot {
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}
.system-chip {
  margin-top: auto;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}
.system-chip .chip-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.system-chip .status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}
.system-chip .chip-body {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
}
.system-chip .chip-body strong {
  color: var(--text);
  font-weight: 600;
}
.wave {
  margin-top: 10px;
  height: 28px;
  border-radius: 6px;
  background:
    linear-gradient(90deg, transparent, rgba(0,210,255,0.35), transparent),
    repeating-linear-gradient(
      90deg,
      transparent 0 4px,
      rgba(0,210,255,0.15) 4px 5px
    );
  border: 1px solid rgba(0,210,255,0.15);
  opacity: 0.85;
}

.main-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 22px;
  background: rgba(5, 11, 20, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.menu-toggle {
  display: none;
  appearance: none;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.menu-toggle svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2; }
.topbar-title {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
}
.topbar-meta {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.8rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 210, 255, 0.08);
  color: var(--cyan);
  border: 1px solid rgba(0, 210, 255, 0.28);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 35;
}

.content-wrap {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0 40px;
  flex: 1;
}

/* Legacy wrap / header aliases map into shell */
.wrap { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }
.site-header, header.site-header { display: none; } /* replaced by shell; keep for safety */

/* —— Content components —— */
.hero, .panel, .card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin: 18px 0;
}
.hero {
  background:
    radial-gradient(600px 200px at 0% 0%, rgba(0,210,255,0.08), transparent 60%),
    var(--card);
}
.hero h1, .content-wrap > h1, main h1 {
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  line-height: 1.2;
  margin: 12px 0;
  letter-spacing: -0.03em;
  font-weight: 700;
}
.lede { font-size: 1.05rem; max-width: 70ch; color: var(--muted); }
.panel h2, .card h2, .prose h2 {
  margin-top: 0;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.prose h2 { margin-top: 2rem; color: var(--muted); }
.prose h3 { color: var(--text); font-size: 1.05rem; }
.prose { max-width: 74ch; color: var(--text); }
.prose p, .prose li { color: #c5cdd8; }
.prose strong { color: var(--text); }

label { display: block; font-weight: 600; margin: 14px 0 6px; color: var(--text); font-size: 0.92rem; }
.hint { display: block; color: var(--muted); font-weight: 400; font-size: 0.85rem; margin-top: 2px; }
legend {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 4px;
}
fieldset.panel { border: 1px solid var(--border); }

input[type="number"], input[type="email"], input[type="text"], select, textarea {
  width: 100%;
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #060d18;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, select:focus, textarea:focus {
  border-color: rgba(0, 210, 255, 0.55);
  box-shadow: var(--glow-soft);
}
.grid-2, .grid-3 { display: grid; gap: 12px; }
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr 1fr; }
}

.btn, button.wide, button.secondary {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  padding: 11px 16px;
  border-radius: 10px;
  margin: 16px 8px 0 0;
  transition: background 0.15s, box-shadow 0.15s, color 0.15s;
}
.btn, button.wide {
  background: var(--cyan);
  color: #021018;
  box-shadow: var(--glow-soft);
}
.btn:hover, button.wide:hover {
  background: #5ce1ff;
  box-shadow: var(--glow);
}
.btn.secondary, button.secondary {
  background: rgba(138, 148, 166, 0.12);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}
.btn.secondary:hover, button.secondary:hover {
  border-color: rgba(0, 210, 255, 0.4);
  color: var(--cyan);
}
button.wide { width: 100%; margin-right: 0; }

.result {
  display: none;
  background: linear-gradient(160deg, #071525, #0a1628);
  color: var(--text);
  border: 1px solid rgba(0, 210, 255, 0.25);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 16px;
  box-shadow: var(--glow-soft);
}
.result.show { display: block; }
.result .tons {
  font-size: 2.35rem;
  letter-spacing: -0.04em;
  margin: 0;
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(0, 210, 255, 0.35);
}
.result .range { color: var(--muted); margin: 4px 0 12px; }
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.metric {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
}
.metric b { display: block; font-size: 1.15rem; color: var(--text); }
.metric span { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.compare, .warn, .note {
  margin-top: 12px;
  padding: 10px 12px;
  border-left: 3px solid var(--cyan);
  background: rgba(0, 210, 255, 0.08);
  border-radius: 0 8px 8px 0;
}
.fine { color: var(--muted); font-size: 0.9rem; }
.permalink { color: var(--cyan); word-break: break-all; }
.metric-row { margin: 8px 0; color: var(--muted); }
.small { color: var(--muted); font-size: 0.9rem; }
.sr-only { position: absolute; left: -9999px; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  background: rgba(0, 210, 255, 0.08);
  color: var(--cyan);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
td { color: #c5cdd8; }

.checklist label.item,
.checklist label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-weight: 400;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  color: #c5cdd8;
}
.checklist input[type="checkbox"] {
  width: auto;
  margin-top: 4px;
  accent-color: var(--cyan);
}

.footer, footer {
  margin: 24px 0 0;
  padding: 22px 0 36px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  background: transparent;
}
.footer .legal, footer .legal { margin: 8px 0; }
.ads-note { font-size: 0.88rem; }
.footer a, footer a { color: var(--cyan); }

.tools-grid, .tool-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.tool-card, .tool-grid a {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.tool-card:hover, .tool-grid a:hover {
  border-color: rgba(0, 210, 255, 0.4);
  box-shadow: var(--glow-soft);
}
.tool-card b, .tool-grid strong {
  display: block;
  margin-bottom: 6px;
  color: var(--cyan);
}
.tool-grid span { color: var(--muted); font-size: 0.92rem; }

.notice, .disclaimer {
  background: rgba(255, 176, 32, 0.08);
  border: 1px solid rgba(255, 176, 32, 0.28);
  border-radius: 10px;
  padding: 12px 14px;
  color: #e8d5b0;
}
.notice strong, .disclaimer strong { color: #ffd27a; }

.choices, .picks { display: flex; flex-wrap: wrap; gap: 8px; }
.choices label, .picks label {
  font-weight: 500;
  margin: 0;
  background: #060d18;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 12px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
}
.choices input, .picks input { margin-right: 6px; accent-color: var(--cyan); }
.picks input { position: absolute; opacity: 0; pointer-events: none; }
.picks input:checked + label,
.choices label:has(input:checked) {
  background: rgba(0, 210, 255, 0.12);
  color: var(--cyan);
  border-color: rgba(0, 210, 255, 0.45);
  box-shadow: var(--glow-soft);
}

.row { display: grid; gap: 12px; }
@media (min-width: 720px) { .row.two { grid-template-columns: 1fr 1fr; } }
.stats { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.stat {
  background: #060d18;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
}
.stat b { display: block; font-size: 1.15rem; color: var(--cyan); }
.stat span { color: var(--muted); font-size: 0.85rem; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
#results { display: none; }
#results.show { display: block; }

.ad-quiet {
  margin: 12px auto 28px;
  max-width: min(1080px, calc(100% - 40px));
  min-height: 90px;
  clear: both;
}

.hero-fig {
  margin: 0 0 8px;
  border-radius: 12px;
  overflow: hidden;
  background: #0a1524;
  border: 1px solid var(--border);
}
.hero-fig img { display: block; width: 100%; height: auto; }
.prose > .hero-fig { margin: 0 0 1.25rem; }

/* Brand leftovers used inside content */
.brand { text-decoration: none; color: inherit; }
.brand b { display: block; font-size: 1.05rem; }
.brand span { display: block; color: var(--muted); font-size: 0.85rem; }
.brand-row { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.nav-pills, .top-nav { display: none; } /* chrome moved to sidebar */

/* Mobile drawer */
@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    box-shadow: 8px 0 32px rgba(0,0,0,0.45);
  }
  .app-shell.nav-open .sidebar { transform: translateX(0); }
  .app-shell.nav-open .sidebar-backdrop:not([hidden]) { display: block; }
  .sidebar-backdrop[hidden] { display: none !important; }
  .menu-toggle { display: inline-flex; }
  .content-wrap, .wrap, .ad-quiet {
    width: min(1080px, calc(100% - 28px));
  }
  .topbar { padding: 12px 14px; }
}

@media print {
  .sidebar, .sidebar-backdrop, .menu-toggle, .topbar, .btn, .ad-quiet, .footer, footer { display: none !important; }
  body, .app-shell, .main-area { background: #fff; color: #111; }
  .result { display: block; color: #111; background: #fff; border: 1px solid #ccc; box-shadow: none; }
  .panel, .hero, .card { box-shadow: none; border-color: #ccc; }
}

/* calc v2 */
.table-wrap { overflow-x: auto; }
.table-wrap table { min-width: 560px; }
#v2-results h3 { margin-top: 16px; }