/* CoderCost Hub — industrial dark. No fluff. */
:root {
  --bg: #0a0a0a;
  --bg-elev: #111111;
  --bg-panel: #141414;
  --line: #2a2a2a;
  --line-strong: #3d3d3d;
  --text: #e8e4df;
  --muted: #8a8580;
  --accent: #b33a2e;
  --accent-hot: #d44538;
  --ok: #6b8f71;
  --danger: #b33a2e;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --display: "Oswald", "Arial Narrow", sans-serif;
  --radius: 0;
  --max: 1080px;
}

*, *::before, *::after { box-sizing: border-box; }

html { font-size: 15px; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-weight: 400;
  line-height: 1.5;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 48px 48px;
}

a { color: var(--text); text-decoration: none; border-bottom: 1px solid var(--line-strong); }
a:hover { color: #fff; border-bottom-color: var(--accent); }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.4rem;
  line-height: 1.15;
}

h1 { font-size: 2.2rem; }
h2 { font-size: 1.25rem; }
h3, .subh { font-size: 1rem; margin: 1.2rem 0 0.6rem; letter-spacing: 0.08em; }

.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.mt { margin-top: 1.25rem; }

/* Header */
.top {
  border-bottom: 1px solid var(--line);
  background: rgba(10,10,10,0.92);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: none;
}
.top-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border: none;
  font-family: var(--display);
  letter-spacing: 0.12em;
  font-weight: 700;
  font-size: 1.05rem;
}
.mark:hover { color: #fff; border: none; }
.mark-glyph {
  width: 14px;
  height: 14px;
  background: var(--accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  flex-shrink: 0;
}
.mark-text { transform: translateY(1px); }

.nav { display: flex; gap: 1rem; flex: 1; }
.nav a {
  border: none;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-family: var(--display);
}
.nav a:hover, .nav a.nav-strong { color: var(--text); }
.top-right { display: flex; align-items: center; gap: 0.75rem; margin-left: auto; }
.who { color: var(--muted); font-size: 0.75rem; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Layout */
.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  flex: 1;
}
.wrap.narrow { max-width: 420px; }

.page-head { margin-bottom: 1.75rem; }
.page-head.row { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; }
.actions { display: flex; gap: 0.5rem; align-items: center; }

/* Landing */
.landing { flex: 1; max-width: var(--max); margin: 0 auto; padding: 3rem 1.25rem 4rem; width: 100%; }
.hero { border-left: 3px solid var(--accent); padding: 0.5rem 0 0.5rem 1.25rem; margin-bottom: 3rem; }
.eyebrow {
  font-family: var(--display);
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--accent);
  margin: 0 0 0.75rem;
}
.slogan {
  font-size: clamp(2rem, 6vw, 3.6rem);
  max-width: 16ch;
  margin-bottom: 1rem;
  color: #f2efe9;
}
.lede { color: var(--muted); max-width: 42ch; margin: 0 0 1.75rem; }
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.mod {
  background: var(--bg-elev);
  padding: 1.25rem;
}
.mod h2 { color: var(--accent-hot); margin-bottom: 0.5rem; }
.mod p { margin: 0; color: var(--muted); font-size: 0.85rem; }

@media (max-width: 720px) {
  .modules { grid-template-columns: 1fr; }
}

/* Cards / grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 720px) {
  .grid-3 { grid-template-columns: 1fr; }
}
.card-link {
  background: var(--bg-elev);
  padding: 1.5rem;
  border: none;
  display: block;
  transition: background 0.12s;
}
.card-link:hover { background: #181818; border: none; }
.card-link .stat {
  font-family: var(--display);
  font-size: 2.4rem;
  margin: 0.5rem 0 0.15rem;
  color: #fff;
}

/* Forms */
.form { display: flex; flex-direction: column; gap: 1rem; }
.form label { display: flex; flex-direction: column; gap: 0.35rem; }
.form label > span, .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  font-family: var(--display);
}
.form-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.form-row label { flex: 1; min-width: 120px; }
.form-row .grow, .grow { flex: 2; min-width: 180px; }
.form-inline-bar { flex-direction: row; flex-wrap: wrap; align-items: stretch; }
.form-inline-bar input { flex: 1; min-width: 160px; }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
select,
textarea {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 0.65rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}
textarea { resize: vertical; min-height: 6rem; }
.radio { flex-direction: row !important; align-items: center; gap: 0.4rem !important; font-size: 0.85rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--display);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
  padding: 0.65rem 1.1rem;
  cursor: pointer;
  border-radius: 0;
  text-decoration: none;
}
.btn:hover { border-color: #fff; color: #fff; }
a.btn { border-bottom-width: 1px; }
a.btn:hover { border-bottom-color: #fff; }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hot);
  border-color: var(--accent-hot);
  color: #fff;
}
.btn-ghost { background: transparent; }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.72rem; }
.inline { display: inline; margin: 0; }

.alert {
  border: 1px solid var(--accent);
  background: rgba(179, 58, 46, 0.12);
  color: #e8b4ae;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.table th {
  text-align: left;
  font-family: var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
  border-bottom: 1px solid var(--line-strong);
  padding: 0.55rem 0.4rem;
}
.table td {
  border-bottom: 1px solid var(--line);
  padding: 0.65rem 0.4rem;
  vertical-align: middle;
}
.table a { border-bottom: 1px solid var(--line-strong); }
.truncate {
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tag {
  display: inline-block;
  border: 1px solid var(--line-strong);
  padding: 0 0.3rem;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Code / panels */
.panel {
  border: 1px solid var(--line);
  background: var(--bg-panel);
  padding: 1.25rem;
}
.codeblock {
  background: #080808;
  border: 1px solid var(--line);
  padding: 1rem;
  overflow: auto;
  font-size: 0.8rem;
  line-height: 1.45;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}
.codeblock code { font-family: var(--mono); }
.block { display: block; word-break: break-all; padding: 0.4rem 0; }

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border: 1px solid var(--line);
  margin-bottom: 1px;
}
.tabs a {
  border: none;
  border-right: 1px solid var(--line);
  padding: 0.55rem 0.9rem;
  font-family: var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--muted);
  background: var(--bg-elev);
}
.tabs a:last-child { border-right: none; }
.tabs a:hover { color: #fff; border: none; border-right: 1px solid var(--line); }
.tabs a.active {
  color: #fff;
  background: var(--bg-panel);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.result-grid {
  display: grid;
  gap: 0.75rem;
}
.diff-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
@media (max-width: 720px) {
  .diff-inputs { grid-template-columns: 1fr; }
}
.diff .diff-add { color: var(--ok); display: block; }
.diff .diff-del { color: #c96b63; display: block; }
.diff .diff-same { color: var(--muted); display: block; }

.stats-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 900px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}
.stat-box {
  background: var(--bg-elev);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.stat-box .stat {
  font-family: var(--display);
  font-size: 1.8rem;
}

.foot {
  border-top: 1px solid var(--line);
  margin-top: auto;
}
.foot-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  gap: 0.5rem;
}
.sep { opacity: 0.4; }

::selection { background: var(--accent); color: #fff; }