/* ===== onepct.css — "1% Assessment Mode": high-density dark terminal theme =====
   Strict minimalist, low padding, razor-thin borders, monospace accents, no slow animation.
   Scoped under body.onepct so it never affects the friendly default theme. */

/* Floating toggle — always visible, monospace, square. */
#onepct-toggle {
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 9999;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 6px 10px;
  border: 1px solid #3a3a3a;
  border-radius: 0;
  background: #111;
  color: #d7d7d7;
  cursor: pointer;
}
#onepct-toggle:hover { border-color: #00e676; color: #00e676; }

body.onepct {
  background: #0b0d0e;
  color: #cfd2d4;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Kill slow/decorative motion — assessment mode is about signal, not polish. */
body.onepct *,
body.onepct *::before,
body.onepct *::after {
  animation: none !important;
  transition: none !important;
}

body.onepct h1,
body.onepct h2,
body.onepct h3 {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  letter-spacing: 0.01em;
  color: #e6e6e6;
}

/* Compress the layout: thin borders, low padding. */
body.onepct .code-card,
body.onepct .block,
body.onepct .card,
body.onepct .lesson-card {
  border: 1px solid #242829 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  background: #0f1213 !important;
  padding: 10px 12px !important;
}

body.onepct .code-area,
body.onepct .code-static,
body.onepct pre {
  background: #07090a !important;
  color: #b8f5d0 !important;
  border: 1px solid #1c2122 !important;
  border-radius: 0 !important;
  font-size: 13px;
  line-height: 1.45;
}

body.onepct .btn {
  border-radius: 0 !important;
  border: 1px solid #2b2f30 !important;
  background: #14181a !important;
  color: #d7d7d7 !important;
  box-shadow: none !important;
}
body.onepct .btn-run { border-color: #00b248 !important; color: #00e676 !important; }
body.onepct .run-out {
  background: #07090a !important;
  border: 1px solid #1c2122 !important;
  border-radius: 0 !important;
  color: #cfd2d4 !important;
}

/* ---- perf badge + complexity table (used in both modes, tuned for dark) ---- */
.perf-badge {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  color: #5b6b62;
  margin-top: 6px;
  display: inline-block;
}
body.onepct .perf-badge { color: #00e676; }

.perf-table {
  width: 100%;
  border-collapse: collapse;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  margin-top: 8px;
}
.perf-table th,
.perf-table td {
  border: 1px solid #2b2f30;
  padding: 3px 8px;
  text-align: right;
}
.perf-table th { color: #8a8f90; font-weight: 600; }
.perf-bigo {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-weight: 700;
  color: #00b248;
}

/* ===================================================================== */
/* 1% HFT Matrix — matrix grid, tier cards, problem cards, grading UI    */
/* Base styles work in the friendly/light theme; body.onepct overrides   */
/* below tighten them into the dense dark-terminal aesthetic.            */
/* ===================================================================== */

/* ---- Matrix home (tier selector) ---- */
.matrix-hero .matrix-kicker {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: #0a8f6f;
  margin-bottom: 6px;
}
.matrix-hero .matrix-stat {
  font-size: 15px;
  color: var(--ink-soft, #6b7280);
  margin-top: 10px;
}
.matrix-hero .matrix-stat .mono,
.nav-track {
  font-family: "JetBrains Mono", ui-monospace, monospace;
}
.nav-track {
  font-size: 12px;
  opacity: 0.7;
  align-self: center;
  letter-spacing: 0.03em;
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.tier-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border: 1px solid rgba(127, 127, 127, 0.22);
  border-radius: 14px;
  background: var(--card, #fff);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.tier-card:hover {
  transform: translateY(-4px);
  border-color: rgba(10, 143, 111, 0.45);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.12);
  text-decoration: none;
}
.tier-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.tier-card-top .tier-emoji { font-size: 34px; }
.tier-card-top .tier-no {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-weight: 700;
  font-size: 14px;
  color: #0a8f6f;
  letter-spacing: 0.05em;
}
.tier-card-title { font-size: 19px; font-weight: 700; line-height: 1.25; }
.tier-card-tag {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  color: #0a8f6f;
}
.tier-card-summary { font-size: 14px; color: var(--ink-soft, #6b7280); line-height: 1.45; }

/* ---- Tier view header ---- */
.tier-head .tier-emoji { font-size: 40px; }

/* ---- Problem cards ---- */
.problem-card {
  border: 1px solid rgba(127, 127, 127, 0.22);
  border-radius: 12px;
  padding: 16px;
  margin: 16px 0;
  background: var(--card, #fff);
}
.problem-card.mastered { border-color: #0a8f6f; box-shadow: inset 3px 0 0 #0a8f6f; }
.problem-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.problem-title { font-size: 18px; font-weight: 700; }
.diff-pill, .engine-pill {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
}
.diff-pill { background: rgba(127, 127, 127, 0.16); }
.diff-easy { background: rgba(16, 185, 129, 0.18); color: #0a8f6f; }
.diff-medium { background: rgba(245, 158, 11, 0.18); color: #b45309; }
.diff-hard { background: rgba(239, 68, 68, 0.18); color: #b91c1c; }
.engine-pill { background: rgba(59, 130, 246, 0.16); color: #2563eb; }
.master-badge {
  display: none;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  color: #0a8f6f;
  margin-left: auto;
}
.problem-card.mastered .master-badge { display: inline; }

.problem-card .instructions { margin-bottom: 12px; line-height: 1.5; }
.problem-card .code-area {
  width: 100%;
  box-sizing: border-box;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  line-height: 1.5;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(127, 127, 127, 0.3);
  resize: vertical;
}

/* ---- Grade + complexity output ---- */
.grade-out, .complexity-out { display: none; margin-top: 10px; }
.grade-out.show, .complexity-out.show { display: block; }
.grade-summary {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-weight: 700;
  margin-bottom: 6px;
}
.grade-out.pass .grade-summary { color: #0a8f6f; }
.grade-out.partial .grade-summary { color: #b45309; }
.grade-out.fail .grade-summary { color: #b91c1c; }
.test-row {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  padding: 3px 0;
  border-bottom: 1px dashed rgba(127, 127, 127, 0.18);
}
.test-row.pass { color: #0a8f6f; }
.test-row.fail { color: #b91c1c; }
.test-row .hidden-tag {
  font-size: 10px;
  opacity: 0.6;
  border: 1px solid currentColor;
  border-radius: 3px;
  padding: 0 4px;
  margin-left: 6px;
}
.test-row .test-meta { color: var(--ink-soft, #6b7280); margin-left: 6px; }
.test-detail {
  margin: 4px 0 4px 16px;
  color: var(--ink-soft, #6b7280);
  white-space: pre-wrap;
  word-break: break-word;
}
.test-detail code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  background: rgba(127, 127, 127, 0.12);
  padding: 0 3px;
  border-radius: 3px;
}
.grade-hint { margin-top: 8px; font-size: 13px; color: var(--ink-soft, #6b7280); }
.complexity-fit {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  margin-top: 8px;
}
.cx-slope { opacity: 0.7; }

/* ---- onepct (dark terminal) overrides ---- */
body.onepct .tier-card,
body.onepct .problem-card {
  background: #0f1213 !important;
  border: 1px solid #242829 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}
body.onepct .tier-card:hover {
  transform: none;
  border-color: #00b248 !important;
}
body.onepct .tier-card-summary,
body.onepct .matrix-hero .matrix-stat,
body.onepct .test-detail,
body.onepct .test-row .test-meta,
body.onepct .grade-hint { color: #8a8f90; }
body.onepct .tier-card-no,
body.onepct .tier-card-tag,
body.onepct .tier-card-top .tier-no,
body.onepct .matrix-hero .matrix-kicker,
body.onepct .grade-out.pass .grade-summary,
body.onepct .test-row.pass,
body.onepct .master-badge,
body.onepct .problem-card.mastered .master-badge { color: #00e676 !important; }
body.onepct .problem-card.mastered {
  border-color: #00b248 !important;
  box-shadow: inset 3px 0 0 #00b248 !important;
}
body.onepct .grade-out.fail .grade-summary,
body.onepct .test-row.fail { color: #ff6b6b; }
body.onepct .grade-out.partial .grade-summary { color: #ffb454; }
body.onepct .diff-pill,
body.onepct .engine-pill { background: #14181a; color: #cfd2d4; border: 1px solid #2b2f30; }
body.onepct .code-area { background: #07090a !important; color: #b8f5d0 !important; border-color: #1c2122 !important; border-radius: 0 !important; }