/* Recall — minimal stylesheet */

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

:root {
  --bg: #f8f8f6;
  --surface: #ffffff;
  --border: #ddd;
  --text: #222;
  --muted: #888;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --correct: #16a34a;
  --incorrect: #dc2626;
  --radius: 6px;
}

body {
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  line-height: 1.5;
}

/* Nav */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.nav-brand { font-weight: 700; font-size: 1.1rem; text-decoration: none; color: var(--primary); }
.nav-links { display: flex; gap: 1rem; }
.nav-links a { text-decoration: none; color: var(--text); font-size: 0.9rem; }
.nav-links a:hover { color: var(--primary); }

/* Main */
main { max-width: 780px; margin: 2rem auto; padding: 0 1rem; }

/* Flash */
.flash { padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.9rem; }
.flash-notice { background: #dcfce7; color: #166534; }
.flash-alert  { background: #fee2e2; color: #991b1b; }

/* Page header */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.page-header h1 { margin: 0; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.45rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.4;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { border-color: var(--incorrect); color: var(--incorrect); }
.btn-danger:hover { background: #fee2e2; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; }

/* Sets list */
.set-list { list-style: none; padding: 0; margin: 0; }
.set-list li { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 0; border-bottom: 1px solid var(--border); gap: 1rem; }
.set-info { display: flex; align-items: center; gap: 0.75rem; }
.set-info a { font-weight: 500; text-decoration: none; color: var(--primary); }
.set-actions { display: flex; gap: 0.5rem; flex-shrink: 0; }

/* Badge */
.badge { font-size: 0.7rem; padding: 0.15rem 0.4rem; border-radius: 99px; background: var(--border); color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.badge-pinned { background: #fef9c3; color: #854d0e; }
.badge-listed  { background: #dbeafe; color: #1e40af; }

/* Study */
.study-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.study-header h1 { margin: 0; }
.session-stats .stats-pill { font-size: 0.9rem; background: var(--surface); border: 1px solid var(--border); border-radius: 99px; padding: 0.25rem 0.75rem; color: var(--muted); }

#question-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; margin-bottom: 1.5rem; }
.question-body { font-size: 1.4rem; font-weight: 500; margin: 0 0 1.5rem; }
.answer-input { width: 100%; padding: 0.6rem 0.75rem; font-size: 1rem; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 0.75rem; display: block; }

/* Feedback */
.feedback { padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 1rem; }
.feedback.correct   { background: #dcfce7; color: var(--correct); }
.feedback.incorrect { background: #fee2e2; color: var(--incorrect); }

/* Questions editor */
.question-row { display: flex; gap: 0.5rem; align-items: flex-start; padding: 0.75rem 0; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.question-field { flex: 2; min-width: 200px; padding: 0.4rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.9rem; resize: vertical; }
.answer-field   { flex: 1; min-width: 120px; padding: 0.4rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.9rem; }
.new-question-form { margin-top: 1.5rem; padding: 1.25rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.new-question-form h3 { margin: 0 0 1rem; }
.new-question-form .question-field,
.new-question-form .answer-field { display: block; width: 100%; margin-bottom: 0.5rem; }

/* Forms */
.field { margin-bottom: 1rem; }
.field label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.25rem; }
.field input[type="text"], .field select, .field textarea { width: 100%; padding: 0.5rem 0.6rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.95rem; }
.errors { background: #fee2e2; color: #991b1b; padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.9rem; }

/* Accuracy table */
.accuracy-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; margin-top: 0.5rem; }
.accuracy-table th { text-align: left; padding: 0.4rem 0.5rem; border-bottom: 2px solid var(--border); color: var(--muted); font-weight: 500; }
.accuracy-table td { padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--border); }

/* Landing */
.landing { text-align: center; padding: 3rem 0; }
.landing h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.tagline { color: var(--muted); font-size: 1.1rem; margin-bottom: 2rem; }
.landing h2 { text-align: left; }
.cta { display: flex; gap: 1rem; justify-content: center; margin-top: 2rem; }

/* Utilities */
.muted { color: var(--muted); }
.desc  { color: var(--muted); font-size: 0.9rem; }
.count { color: var(--muted); font-size: 0.85rem; }
hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }

/* Import */
.json-input { width: 100%; padding: 0.6rem; border: 1px solid var(--border); border-radius: var(--radius); font-family: monospace; font-size: 0.85rem; resize: vertical; }
.import-or  { text-align: center; margin: 0.5rem 0; }
.code-block { background: #f1f5f9; border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; font-size: 0.82rem; overflow-x: auto; white-space: pre; font-family: monospace; }
.json-format-docs h2 { margin-top: 0; }
.json-format-docs h3 { margin-top: 1.5rem; }
code { background: #f1f5f9; padding: 0.1em 0.35em; border-radius: 3px; font-size: 0.875em; font-family: monospace; }