:root{
  --bg:#f7f5f0;
  --panel:#ffffff;
  --ink:#22242a;
  --ink-soft:#54575f;
  --accent:#1f6f5c;
  --accent-dark:#154c3f;
  --accent-soft:#e4f2ee;
  --warn:#b5541c;
  --warn-soft:#fbe9dd;
  --danger:#a3283f;
  --danger-soft:#fbe4e8;
  --ok:#1f6f5c;
  --ok-soft:#e4f2ee;
  --border:#dedad0;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 6px 18px rgba(0,0,0,0.05);
  --radius: 14px;
  font-size: 17px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family: "Iowan Old Style","Georgia","Charter",serif;
  line-height:1.6;
}
.app{
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}
a.hub-link{
  font-family:"Helvetica Neue", Arial, sans-serif;
  font-size: 0.82rem;
  color: var(--ink-soft);
  text-decoration: none;
  display:inline-block;
  margin-bottom: 10px;
}
a.hub-link:hover{ text-decoration: underline; }
header.top{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom: 22px;
}
.eyebrow{
  font-family: "Helvetica Neue", Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: var(--accent-dark);
  font-weight: 700;
}
h1{ font-size: 1.7rem; margin: 0; line-height:1.25; }
.subtitle{ color: var(--ink-soft); font-family: "Helvetica Neue", Arial, sans-serif; font-size: 0.95rem; margin: 0; }

nav.stepper{
  display:flex; gap:8px; flex-wrap:wrap;
  font-family: "Helvetica Neue", Arial, sans-serif;
  margin: 18px 0 26px;
}
.step-btn{
  flex:1 1 140px;
  border: 1.5px solid var(--border);
  background: var(--panel);
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 0.85rem;
  font-weight:600;
  color: var(--ink-soft);
  cursor:pointer;
  text-align:center;
  transition: all .15s ease;
}
.step-btn.active{ border-color: var(--accent); color: var(--accent-dark); background: var(--accent-soft); }
.step-btn.done::before{ content: "\2713  "; }

.panel{
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 28px;
  margin-bottom: 22px;
}

.badge{
  display:inline-block;
  font-family:"Helvetica Neue", Arial, sans-serif;
  font-size:0.72rem; font-weight:700; letter-spacing:.05em; text-transform:uppercase;
  padding: 4px 10px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent-dark);
  margin-bottom: 10px;
}
.badge.warn{ background:var(--warn-soft); color:var(--warn); }

h2{ font-size:1.35rem; margin-top:0; }
h3{ font-size:1.08rem; color:var(--accent-dark); }

.callout{
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 12px 16px;
  border-radius: 0 10px 10px 0;
  margin: 16px 0;
  font-size: 0.97rem;
}
.callout.warn{ border-color: var(--warn); background: var(--warn-soft); }
.callout.piege{ border-color:#8a6d1f; background:#fbf3dd; }

table.data{
  width:100%; border-collapse: collapse; margin: 14px 0;
  font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.92rem;
}
table.data caption{ text-align:left; font-size: 0.8rem; color: var(--ink-soft); margin-bottom:6px; font-style: italic; }
table.data th, table.data td{ border: 1px solid var(--border); padding: 8px 10px; text-align:left; }
table.data th{ background: #f0ede4; }

.world-map-wrap{ position:relative; width:100%; background:#eaf1ee; border-radius: 10px; overflow:hidden; margin: 14px 0; }
.world-map-crop{ position:relative; width:100%; overflow:hidden; border-radius:10px; background:#eaf1ee; }
.world-map-base{ width:100%; display:block; }
.world-map-overlay{ position:absolute; top:0; left:0; width:100%; height:100%; }
.map-caption{ font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.78rem; color: var(--ink-soft); font-style: italic; margin-top: -6px; margin-bottom: 14px; }
.belgium-map-wrap{ max-width: 320px; margin: 14px auto; }
.belgium-map-wrap svg{ width:100%; height:auto; display:block; }
.belgium-legend{ display:flex; gap:16px; flex-wrap:wrap; justify-content:center; font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.82rem; margin-top: 8px; }
.belgium-legend span{ display:flex; align-items:center; gap:6px; }
.legend-dot{ width:12px; height:12px; border-radius:3px; display:inline-block; }

.btn{
  font-family:"Helvetica Neue", Arial, sans-serif; font-weight:700; font-size: 0.92rem;
  padding: 11px 20px; border-radius: 10px; border: none; cursor:pointer;
  background: var(--accent); color: #fff; transition: transform .1s ease, background .15s ease;
}
.btn:hover{ background: var(--accent-dark); }
.btn:active{ transform: scale(0.98); }
.btn.secondary{ background: transparent; color: var(--accent-dark); border: 1.5px solid var(--accent); }
.btn:disabled{ opacity:0.4; cursor:not-allowed; }
.btn-row{ display:flex; gap:10px; flex-wrap:wrap; margin-top: 18px; }

.theory-nav{ display:flex; justify-content:space-between; align-items:center; margin-top: 24px; font-family:"Helvetica Neue", Arial, sans-serif; }
.theory-progress{ font-size:0.8rem; color:var(--ink-soft); }

.question{ border-top: 1px solid var(--border); padding-top: 18px; margin-top: 18px; }
.question:first-of-type{ border-top:none; margin-top:0; padding-top:0; }
.q-number{ font-family:"Helvetica Neue", Arial, sans-serif; font-size:0.75rem; font-weight:700; color: var(--accent-dark); text-transform:uppercase; letter-spacing:.05em; }
.q-points{ color: var(--ink-soft); font-weight:400; }
.q-prompt{ margin: 6px 0 12px; font-size:1.02rem; }

.options label{ display:block; padding: 9px 12px; border: 1.5px solid var(--border); border-radius: 10px; margin-bottom: 8px; cursor:pointer; font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.94rem; }
.options label:hover{ border-color: var(--accent); }
.options input{ margin-right:8px; }

select.match-select{ font-family:"Helvetica Neue", Arial, sans-serif; padding: 6px 8px; border-radius: 8px; border: 1.5px solid var(--border); font-size: 0.9rem; }
.match-row{ display:flex; justify-content:space-between; align-items:center; gap: 12px; padding: 8px 0; }
.match-row .left{ font-size:0.94rem; }

textarea.open-answer{ width:100%; min-height: 90px; font-family: "Iowan Old Style","Georgia",serif; font-size: 0.96rem; padding: 10px; border-radius: 10px; border: 1.5px solid var(--border); resize: vertical; }
input.text-answer{ font-family:"Helvetica Neue", Arial, sans-serif; padding: 8px 10px; border-radius: 8px; border: 1.5px solid var(--border); font-size: 0.94rem; width: 240px; max-width:100%; }

.feedback{ margin-top: 10px; padding: 10px 14px; border-radius: 10px; font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.9rem; display:none; }
.feedback.show{ display:block; }
.feedback.correct{ background: var(--ok-soft); color: var(--accent-dark); }
.feedback.incorrect{ background: var(--danger-soft); color: var(--danger); }
.feedback.partial{ background: var(--warn-soft); color: var(--warn); }
.feedback .model{ margin-top:8px; font-style: italic; color: var(--ink-soft); }

.check-btn{ margin-top: 10px; font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.85rem; padding: 7px 14px; border-radius: 8px; border: 1.5px solid var(--accent); background: #fff; color: var(--accent-dark); cursor:pointer; font-weight:600; }

.score-box{ text-align:center; padding: 28px 20px; }
.score-number{ font-family:"Helvetica Neue", Arial, sans-serif; font-size: 3rem; font-weight: 800; margin: 6px 0; }
.score-number.pass{ color: var(--accent-dark); }
.score-number.fail{ color: var(--danger); }

.lock-card{ border: 1.5px dashed var(--border); border-radius: var(--radius); padding: 22px; text-align:center; color: var(--ink-soft); font-family:"Helvetica Neue", Arial, sans-serif; }
.unlock-card{ border: 1.5px solid var(--accent); background: var(--accent-soft); border-radius: var(--radius); padding: 22px; text-align:center; }

footer.foot{ text-align:center; color: var(--ink-soft); font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.75rem; margin-top: 30px; line-height:1.7; }

.view{ display:none; }
.view.active{ display:block; }

.reset-link{ font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.75rem; color: var(--ink-soft); text-decoration: underline; cursor:pointer; background:none; border:none; padding:0; }

ul.clean, ol.clean{ padding-left: 22px; }
ul.clean li, ol.clean li{ margin-bottom: 6px; }

.attempts-history{ font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.85rem; color: var(--ink-soft); margin-top: 18px; }
.attempts-history table{ width:100%; border-collapse:collapse; }
.attempts-history td, .attempts-history th{ padding:4px 8px; border-bottom:1px solid var(--border); }

.subnav{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom: 18px; font-family:"Helvetica Neue", Arial, sans-serif; }
.subnav-btn{ border: 1.5px solid var(--border); background: #fff; border-radius: 999px; padding: 7px 16px; font-size: 0.83rem; font-weight:600; color: var(--ink-soft); cursor:pointer; }
.subnav-btn.active{ border-color: var(--accent); background: var(--accent-soft); color: var(--accent-dark); }
.ex-tab{ display:none; }
.ex-tab.active{ display:block; }

.flashcard{ perspective: 1200px; width: 100%; max-width: 440px; height: 220px; margin: 6px auto 16px; cursor: pointer; }
.flashcard-inner{ position: relative; width:100%; height:100%; transition: transform .5s; transform-style: preserve-3d; }
.flashcard.flipped .flashcard-inner{ transform: rotateY(180deg); }
.flashcard-face{ position:absolute; inset:0; backface-visibility:hidden; border-radius: 14px; display:flex; align-items:center; justify-content:center; text-align:center; padding: 22px; box-shadow: var(--shadow); font-family:"Helvetica Neue", Arial, sans-serif; }
.flashcard-face.front{ background: var(--accent-soft); color: var(--accent-dark); font-weight:700; font-size: 1.3rem; }
.flashcard-face.back{ background:#fff; border: 1.5px solid var(--accent); color: var(--ink); font-size: 0.98rem; transform: rotateY(180deg); }
.flashcard-progress{ text-align:center; font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 6px; }
.fc-controls{ display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-top:10px; }
.btn.know{ background: var(--accent); }
.btn.review{ background: var(--warn); }

.game-score{ font-family:"Helvetica Neue", Arial, sans-serif; font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 6px; }

/* --- hub (index.html) --- */
.year-title{ font-size:1.15rem; margin: 28px 0 12px; color: var(--accent-dark); }
.module-card{
  display:flex; align-items:center; gap:16px;
  background: var(--panel); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px 22px; margin-bottom: 14px;
}
.module-card.locked{ opacity: 0.55; }
.module-num{
  font-family:"Helvetica Neue", Arial, sans-serif; font-weight:800; font-size:1.3rem;
  width: 42px; height: 42px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-dark);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.module-card.locked .module-num{ background:#efece3; color: var(--ink-soft); }
.module-info{ flex:1; }
.module-info h3{ margin:0 0 4px; font-size:1.05rem; }
.module-info p{ margin:0; font-family:"Helvetica Neue", Arial, sans-serif; font-size:0.85rem; color: var(--ink-soft); }
.module-status{ font-family:"Helvetica Neue", Arial, sans-serif; font-size:0.78rem; color: var(--ink-soft); text-align:right; white-space:nowrap; }
.module-status strong{ color: var(--accent-dark); }