/* ==========================================================================
   AP Cybersecurity Study Guide — Shared Styles
   ========================================================================== */

: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;

  --surface: #ffffff;
  --surface-alt: #f7f5f2;
  --border-soft: #e4ded4;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.18);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-black-88);
  background: var(--surface-alt);
  line-height: 1.55;
}

h1, h2, h3, h4 {
  font-family: "Georgia", "Times New Roman", serif;
  color: var(--color-black);
  margin: 0 0 0.5em 0;
  letter-spacing: 0.01em;
}

a { color: var(--color-dark-tan); }
a:hover { color: var(--color-black); }

img { max-width: 100%; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--color-black);
  border-bottom: 3px solid var(--color-gold);
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  color: var(--color-white);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand .brand-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  font-family: "Segoe UI", sans-serif;
}

.brand .brand-title {
  font-family: "Georgia", serif;
  font-size: 1.35rem;
  color: var(--color-white);
}

nav.mainnav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

nav.mainnav a {
  color: var(--color-light-tan);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 6px;
  transition: background 0.15s ease, color 0.15s ease;
}

nav.mainnav a:hover {
  background: rgba(177, 153, 119, 0.18);
  color: var(--color-white);
}

nav.mainnav a.active {
  background: var(--color-gold);
  color: var(--color-black);
}

/* ---------- Page shell ---------- */
.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 36px 24px 80px;
}

.hero {
  background: linear-gradient(135deg, var(--color-dark-tan), var(--color-tan));
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 40px 36px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-lg);
}

.hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--color-light-tan);
  margin-bottom: 10px;
  font-weight: 700;
}

.hero h1 {
  color: var(--color-white);
  font-size: 2rem;
  margin-bottom: 12px;
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 60ch;
  margin: 0;
}

/* ---------- Cards / grids ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin: 28px 0;
}

.week-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 22px;
  text-decoration: none;
  color: inherit;
  display: block;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  position: relative;
}

.week-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.week-card .week-tag {
  display: inline-block;
  background: var(--color-gold);
  color: var(--color-black);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.week-card h3 {
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.week-card .week-dates {
  color: var(--color-black-63);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.week-card p.blurb {
  font-size: 0.92rem;
  color: var(--color-black-80);
  margin: 0;
}

.quiz-cta {
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 28px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin: 32px 0;
  box-shadow: var(--shadow-lg);
}

.quiz-cta h3 { color: var(--color-white); margin-bottom: 6px; }
.quiz-cta p { margin: 0; color: var(--color-light-tan); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--color-gold);
  color: var(--color-black);
  font-weight: 700;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  transition: background 0.15s ease, transform 0.1s ease;
  white-space: nowrap;
}

.btn:hover { background: var(--color-accent-light); }
.btn:active { transform: scale(0.98); }

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-gold);
}

.btn-outline:hover { background: var(--color-gold); color: var(--color-black); }

.btn-secondary {
  background: var(--color-light-tan);
  color: var(--color-black);
}

.btn-secondary:hover { background: var(--color-tan); color: var(--color-white); }

.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- Day sections (week pages) ---------- */
.day-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
  position: sticky;
  top: 0;
  background: var(--surface-alt);
  padding: 12px 0;
  z-index: 5;
}

.day-nav a {
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  color: var(--color-dark-tan);
  padding: 7px 14px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
}

.day-nav a:hover { background: var(--color-light-tan); color: var(--color-black); }

.day-section {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-left: 5px solid var(--color-gold);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin-bottom: 26px;
  box-shadow: var(--shadow);
  scroll-margin-top: 70px;
}

.day-section .day-heading {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

.day-section .day-heading h2 { margin: 0; font-size: 1.3rem; }

.day-date {
  color: var(--color-black-63);
  font-size: 0.85rem;
}

.day-topic {
  color: var(--color-dark-tan);
  font-weight: 700;
  margin: 4px 0 14px;
}

.day-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  background: var(--surface-alt);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 18px;
}

.day-meta .meta-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-tan);
  font-weight: 700;
  margin-bottom: 3px;
}

.day-meta .meta-value { font-size: 0.92rem; }

.objectives-pill {
  display: inline-block;
  font-size: 0.75rem;
  background: var(--color-light-tan);
  color: var(--color-black-88);
  padding: 2px 9px;
  border-radius: 100px;
  margin-left: 6px;
  font-weight: 600;
}

h4.section-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-tan);
  margin: 20px 0 10px;
}

.vocab-list {
  display: grid;
  gap: 10px;
}

.vocab-item {
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 12px 16px;
  background: var(--surface);
}

.vocab-item .term {
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 3px;
}

.vocab-item .def {
  font-size: 0.94rem;
  color: var(--color-black-80);
}

.review-list {
  margin: 0;
  padding-left: 20px;
}

.review-list li { margin-bottom: 6px; }

.no-vocab-note {
  font-style: italic;
  color: var(--color-black-63);
  font-size: 0.9rem;
}

/* ---------- Footer ---------- */
footer {
  text-align: center;
  padding: 26px;
  color: var(--color-black-63);
  font-size: 0.82rem;
}

/* ==========================================================================
   Quiz page
   ========================================================================== */

.quiz-setup {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: var(--shadow);
  margin-bottom: 26px;
}

.quiz-setup h2 { margin-bottom: 4px; }
.quiz-setup .sub { color: var(--color-black-63); margin-bottom: 20px; font-size: 0.92rem; }

.option-group {
  margin-bottom: 20px;
}

.option-group .option-group-label {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-tan);
  margin-bottom: 10px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 2px solid var(--border-soft);
  background: var(--surface);
  padding: 9px 16px;
  border-radius: 100px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-black-80);
  transition: all 0.12s ease;
}

.chip:hover { border-color: var(--color-accent-light); }

.chip.selected {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-black);
}

#quiz-area { display: none; }
#results-area { display: none; }

.quiz-progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  font-size: 0.88rem;
  color: var(--color-black-63);
  font-weight: 600;
}

.progress-bar-track {
  height: 8px;
  background: var(--border-soft);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 22px;
}

.progress-bar-fill {
  height: 100%;
  background: var(--color-gold);
  transition: width 0.2s ease;
}

.question-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 28px 30px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.question-kicker {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-tan);
  font-weight: 700;
  margin-bottom: 8px;
}

.question-text {
  font-family: "Georgia", serif;
  font-size: 1.25rem;
  color: var(--color-black);
  margin-bottom: 22px;
  line-height: 1.4;
}

.answer-list {
  display: grid;
  gap: 10px;
}

.answer-btn {
  text-align: left;
  border: 2px solid var(--border-soft);
  background: var(--surface);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 0.96rem;
  cursor: pointer;
  color: var(--color-black-88);
  transition: all 0.12s ease;
}

.answer-btn:hover:not(.locked) {
  border-color: var(--color-accent-light);
  background: var(--surface-alt);
}

.answer-btn.correct {
  border-color: #4c7a4c;
  background: #eaf4ea;
  color: #234023;
  font-weight: 700;
}

.answer-btn.incorrect {
  border-color: #a24b4b;
  background: #f8ebeb;
  color: #5c2323;
  font-weight: 700;
}

.answer-btn.locked { cursor: default; }

.quiz-footer-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 6px;
}

/* Results */
.score-banner {
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
  margin-bottom: 26px;
  box-shadow: var(--shadow-lg);
}

.score-banner .score-num {
  font-family: "Georgia", serif;
  font-size: 3rem;
  color: var(--color-gold);
  margin-bottom: 6px;
}

.score-banner .score-sub {
  color: var(--color-light-tan);
  font-size: 1rem;
}

.review-answers {
  display: grid;
  gap: 10px;
  margin: 24px 0;
}

.review-row {
  border: 1px solid var(--border-soft);
  border-left: 5px solid var(--border-soft);
  border-radius: 8px;
  padding: 14px 18px;
  background: var(--surface);
  font-size: 0.92rem;
}

.review-row.was-correct { border-left-color: #4c7a4c; }
.review-row.was-incorrect { border-left-color: #a24b4b; }

.review-row .rq { font-weight: 700; margin-bottom: 4px; }
.review-row .ra-your { color: var(--color-black-63); }
.review-row .ra-correct { color: #234023; font-weight: 600; }

.history-table-wrap {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
  margin-top: 30px;
}

table.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table.history-table th {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 2px solid var(--color-gold);
  color: var(--color-tan);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

table.history-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border-soft);
}

table.history-table tr:last-child td { border-bottom: none; }

.empty-history {
  color: var(--color-black-63);
  font-style: italic;
  font-size: 0.9rem;
}

.action-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .topbar-inner { flex-direction: column; align-items: flex-start; }
  .hero { padding: 28px 22px; }
  .day-meta { grid-template-columns: 1fr; }
  .question-card { padding: 22px 18px; }
  .score-banner { padding: 26px 18px; }
}