/* =========================================================
   Mr. Marks — AP Cybersecurity Study Guide
   Design language: security operations console.
   Palette + type system derived from the brief's fixed tokens.
   ========================================================= */

:root {
  --color-black: #000000;
  --color-tan: #86745c;
  --color-light-tan: #c2baab;
  --color-dark-tan: #6a5c48;
  --color-white: #ffffff;
  --color-black-63: rgba(0, 0, 0, 0.63);
  --color-black-80: rgba(0, 0, 0, 0.8);
  --color-black-88: rgba(0, 0, 0, 0.88);
  --color-gold: #b19977;
  --color-accent: #b19977;
  --color-accent-light: #c2baab;

  /* derived surfaces — kept strictly within the black/tan/white family */
  --surface-0: #050403;
  --surface-1: #0c0a08;
  --surface-2: #14110d;
  --surface-3: #1c1712;
  --hairline: rgba(178, 158, 129, 0.22);
  --hairline-strong: rgba(178, 158, 129, 0.4);
  --text-primary: var(--color-white);
  --text-muted: #b7ac9d;
  --text-faint: #7d7367;

  --font-display: "Rajdhani", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --radius: 3px;
  --container: 1140px;
}

@import url("https://fonts.googleapis.com/css2?family=Rajdhani:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap");

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--surface-0);
  background-image:
    linear-gradient(rgba(178,158,129,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(178,158,129,0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }
a { color: var(--color-accent-light); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--color-accent-light);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--color-black-88);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--hairline);
}
.topbar-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-primary);
  font-size: 1.05rem;
  white-space: nowrap;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent-light);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  border-radius: 2px;
  transform: rotate(45deg);
  flex-shrink: 0;
}
.brand-mark span { transform: rotate(-45deg); }
.brand small {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--text-faint);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}
.topnav { display: flex; gap: 18px; align-items: center; font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.03em; }
.topnav a { color: var(--text-muted); }
.topnav a.active, .topnav a:hover { color: var(--color-accent-light); text-decoration: none; }
.topnav a::before { content: "// "; color: var(--text-faint); }

/* ---------- Hero / console header ---------- */
.console-header {
  border-bottom: 1px solid var(--hairline);
  padding: 56px 0 40px;
  position: relative;
  overflow: hidden;
}
.console-header::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 700px 260px at 15% 0%, rgba(178,158,129,0.12), transparent 70%);
  pointer-events: none;
}
.console-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-accent-light);
  border: 1px solid var(--hairline-strong);
  padding: 5px 10px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.console-tag .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-accent-light);
  box-shadow: 0 0 8px var(--color-accent-light);
}
h1.page-title, .console-header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: 0.01em;
  margin: 0 0 12px;
  color: var(--text-primary);
}
.console-header p.lede, .lede {
  color: var(--text-muted);
  font-size: 1.02rem;
  max-width: 640px;
  margin: 0;
}
.console-header .cursor {
  display: inline-block;
  width: 10px; height: 1.1em;
  background: var(--color-accent-light);
  margin-left: 6px;
  vertical-align: -2px;
  animation: blink 1.1s steps(1) infinite;
}
@media (prefers-reduced-motion: reduce) { .console-header .cursor { animation: none; } }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Section labels ---------- */
.section {
  padding: 46px 0;
  border-bottom: 1px solid var(--hairline);
}
.section:last-child { border-bottom: none; }
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  text-transform: uppercase;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  margin: 4px 0 0;
  color: var(--text-primary);
}
.section-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ---------- Week block ---------- */
.week-block { margin-bottom: 40px; }
.week-block:last-child { margin-bottom: 0; }
.week-heading {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.week-id {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--surface-0);
  background: var(--color-accent-light);
  padding: 4px 9px;
  border-radius: 2px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.week-heading h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}
.week-heading .week-theme { color: var(--text-faint); font-size: 0.85rem; font-family: var(--font-body); }

/* ---------- Day cards grid ---------- */
.day-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
}
.day-card {
  display: block;
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 16px 16px 14px;
  color: var(--text-primary);
  transition: border-color .15s ease, transform .15s ease, background .15s ease;
  position: relative;
}
.day-card:hover {
  border-color: var(--color-accent);
  background: var(--surface-3);
  transform: translateY(-2px);
  text-decoration: none;
}
.day-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.day-log-id {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-faint);
  letter-spacing: 0.05em;
}
.status-pill {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid currentColor;
}
.status-pill.lesson   { color: var(--color-accent-light); }
.status-pill.review   { color: var(--color-light-tan); }
.status-pill.virtual  { color: #9db3c2; }
.status-pill.noschool { color: #8a8375; }

.day-card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 6px;
  line-height: 1.3;
}
.day-card .unit-line {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  min-height: 2.2em;
}
.day-card .card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-faint);
  border-top: 1px dashed var(--hairline);
  padding-top: 8px;
  white-space: nowrap;
}
.day-card .card-foot .term-count { color: var(--color-accent-light); }

/* ---------- Day detail page ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--text-muted); }

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 30px;
}
.meta-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  padding: 6px 10px;
  letter-spacing: 0.02em;
}
.meta-chip b { color: var(--color-accent-light); font-weight: 600; }

.panel {
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 22px;
}
.panel h2 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  margin: 0 0 10px;
  color: var(--color-accent-light);
  text-transform: uppercase;
}
.panel p { margin: 0; color: var(--text-primary); }

.vocab-list { display: flex; flex-direction: column; gap: 0; }
.vocab-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline);
}
.vocab-item:last-child { border-bottom: none; }
.vocab-term {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-accent-light);
  font-size: 0.92rem;
}
.vocab-def { color: var(--text-muted); font-size: 0.94rem; }

.qa-list { margin: 0; padding: 0; list-style: none; counter-reset: q; }
.qa-list li {
  counter-increment: q;
  padding: 10px 0 10px 34px;
  position: relative;
  border-bottom: 1px solid var(--hairline);
  color: var(--text-primary);
  font-size: 0.95rem;
}
.qa-list li:last-child { border-bottom: none; }
.qa-list li::before {
  content: counter(q, decimal-leading-zero);
  position: absolute;
  left: 0; top: 9px;
  font-family: var(--font-mono);
  color: var(--text-faint);
  font-size: 0.78rem;
}

.day-pager {
  display: flex;
  justify-content: space-between;
  margin-top: 30px;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.notice-box {
  border: 1px dashed var(--hairline-strong);
  border-radius: var(--radius);
  padding: 20px 22px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 10px 18px;
  border-radius: 3px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent-light);
  background: transparent;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.btn:hover { background: var(--color-accent); color: var(--surface-0); text-decoration: none; }
.btn.primary { background: var(--color-accent); color: var(--surface-0); }
.btn.primary:hover { background: var(--color-accent-light); border-color: var(--color-accent-light); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Stat strip (home) ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 30px;
}
.stat {
  background: var(--surface-1);
  padding: 18px 16px;
  text-align: center;
}
.stat .num {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--color-accent-light);
  line-height: 1;
}
.stat .label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-top: 6px;
}

/* ---------- Quiz ---------- */
.quiz-setup-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin: 24px 0 30px;
}
.setup-card {
  border: 1px solid var(--hairline);
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 16px;
}
.setup-card label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.chip-select { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-select button {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
}
.chip-select button.on {
  color: var(--surface-0);
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
}
input[type="number"] {
  width: 100%;
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  color: var(--text-primary);
  font-family: var(--font-mono);
  padding: 8px 10px;
  border-radius: 3px;
}

#quiz-area { display: none; }
#quiz-area.active { display: block; }
#setup-area.hidden, #results-area.hidden { display: none; }

.quiz-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-bottom: 14px;
}
.progress-track {
  height: 4px;
  background: var(--surface-3);
  border-radius: 2px;
  overflow: hidden;
  margin: 10px 0 26px;
}
.progress-fill {
  height: 100%;
  background: var(--color-accent-light);
  transition: width .25s ease;
}

.ticket {
  border: 1px solid var(--hairline);
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 26px 26px 22px;
}
.ticket-id {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.ticket h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 22px;
  color: var(--text-primary);
}
.option-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 22px; }
.option {
  text-align: left;
  border: 1px solid var(--hairline);
  background: var(--surface-1);
  color: var(--text-primary);
  border-radius: 3px;
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color .12s ease, background .12s ease;
}
.option:hover { border-color: var(--color-accent); }
.option.correct { border-color: #7fae86; background: rgba(127,174,134,0.12); color: #cdeccf; }
.option.incorrect { border-color: #b5716b; background: rgba(181,113,107,0.12); color: #f0cfcb; }
.option.disabled-choice { opacity: 0.45; cursor: default; }
.feedback-box {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 12px 14px;
  border-radius: 3px;
  margin-bottom: 18px;
  border: 1px solid var(--hairline);
}
.feedback-box.good { color: #cdeccf; border-color: #7fae86; }
.feedback-box.bad { color: #f0cfcb; border-color: #b5716b; }

.results-hero {
  text-align: center;
  padding: 30px 20px 10px;
}
.score-ring {
  width: 160px; height: 160px;
  margin: 0 auto 20px;
  border-radius: 50%;
  border: 6px solid var(--surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.score-ring .pct {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--color-accent-light);
}
.results-hero h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 0 0 6px;
}
.results-hero p { color: var(--text-muted); margin: 0; }

.history-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; margin-top: 10px; }
.history-table th, .history-table td {
  text-align: left;
  padding: 9px 10px;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
.history-table th { color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 500; }
.history-table td { color: var(--text-primary); }

.review-list { margin-top: 26px; }
.review-item {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
  background: var(--surface-2);
}
.review-item .rq { font-size: 0.92rem; margin-bottom: 8px; }
.review-item .ra { font-family: var(--font-mono); font-size: 0.8rem; }
.review-item .ra.correct { color: #8fcf96; }
.review-item .ra.incorrect { color: #e08a83; }
.review-item .correct-answer { color: var(--text-muted); font-size: 0.8rem; margin-top: 4px; font-family: var(--font-mono); }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--hairline);
  padding: 26px 0 50px;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-align: center;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .vocab-item { grid-template-columns: 1fr; gap: 4px; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .brand small { display: none; }
  .topnav { gap: 12px; font-size: 0.72rem; }
}