/* ============================================================
   VL Test Generator v3.0 — Frontend Styles
   ============================================================ */
:root {
  --vlt-primary: #1A7F4E;
  --vlt-primary-dark: #125C38;
  --vlt-primary-light: #22A060;
  --vlt-accent: #F5A623;
  --vlt-border: #D8EBE0;
  --vlt-border-light: #EDF6F0;
  --vlt-text: #1A2B22;
  --vlt-muted: #5A7265;
  --vlt-bg: #FAFDF8;
  --vlt-radius: 14px;
  --vlt-shadow: 0 8px 32px rgba(26,127,78,.18);
}
.vlt-wrap { max-width:860px; margin:0 auto; padding:0 16px 60px; font-family:'Nunito',-apple-system,sans-serif; }

/* ── STEPS ── */
.vlt-steps { display:flex; align-items:center; justify-content:center; margin:32px 0 40px; flex-wrap:wrap; }
.vlt-step  { display:flex; flex-direction:column; align-items:center; gap:6px; opacity:.4; transition:opacity .3s; min-width:80px; }
.vlt-step.active { opacity:1; }
.vlt-step.done   { opacity:.75; }
.vlt-step-num    { width:36px; height:36px; border-radius:50%; background:var(--vlt-border-light); color:var(--vlt-primary); font-weight:800; font-size:.95rem; display:flex; align-items:center; justify-content:center; transition:all .3s; }
.vlt-step.active .vlt-step-num { background:var(--vlt-primary); color:#fff; box-shadow:0 4px 12px rgba(26,127,78,.35); }
.vlt-step.done   .vlt-step-num { background:var(--vlt-primary-light); color:#fff; }
.vlt-step-label  { font-size:.75rem; font-weight:700; color:var(--vlt-muted); text-align:center; }
.vlt-step.active .vlt-step-label { color:var(--vlt-primary); }
.vlt-step-line   { flex:1; min-width:40px; height:2px; background:var(--vlt-border); margin:0 4px 22px; }

/* ── PANELS ── */
.vlt-panel { display:none; }
.vlt-panel.active { display:block; animation:vltFadeIn .35s ease; }
@keyframes vltFadeIn { from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)} }
.vlt-panel-title { font-size:1.5rem; font-weight:800; color:var(--vlt-primary-dark); margin-bottom:6px; }
.vlt-panel-sub   { color:var(--vlt-muted); font-size:.95rem; margin-bottom:28px; }

/* ── FIELDS ── */
.vlt-grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
@media(max-width:600px){ .vlt-grid-2 { grid-template-columns:1fr; } }
.vlt-field { display:flex; flex-direction:column; gap:8px; }
.vlt-field label { font-size:.85rem; font-weight:700; color:var(--vlt-text); }
.vlt-field label small { font-weight:400; color:#888; }
.vlt-field select,
.vlt-field input[type="text"] { padding:11px 14px; border:1.5px solid var(--vlt-border); border-radius:10px; font-size:.95rem; font-family:inherit; color:var(--vlt-text); background:#fff; outline:none; transition:border-color .2s,box-shadow .2s; }
.vlt-field select:focus,
.vlt-field input[type="text"]:focus { border-color:var(--vlt-primary); box-shadow:0 0 0 3px rgba(26,127,78,.1); }
.vlt-field select:disabled { background:#f5f5f5; color:#aaa; cursor:not-allowed; }

/* ── ALERTS ── */
.vlt-alert { padding:12px 16px; border-radius:8px; font-size:.88rem; margin-top:16px; }
.vlt-alert-warn { background:#fff8e1; border-left:4px solid var(--vlt-accent); color:#7a5a00; }

/* ── PILLS ── */
.vlt-pill-group { display:flex; gap:8px; flex-wrap:wrap; }
.vlt-pill { padding:8px 18px; border-radius:50px; border:1.5px solid var(--vlt-border); background:#fff; font-family:inherit; font-size:.88rem; font-weight:700; color:var(--vlt-muted); cursor:pointer; transition:all .2s; }
.vlt-pill:hover  { border-color:var(--vlt-primary); color:var(--vlt-primary); }
.vlt-pill.active { background:var(--vlt-primary); color:#fff; border-color:var(--vlt-primary); }

/* ── CHECKBOXES ── */
.vlt-checkbox-row { display:flex; flex-wrap:wrap; gap:10px 24px; }
.vlt-checkbox-row label { display:flex; align-items:center; gap:8px; font-size:.88rem; font-weight:600; color:var(--vlt-text); cursor:pointer; }
.vlt-checkbox-row input[type="checkbox"] { width:18px; height:18px; accent-color:var(--vlt-primary); cursor:pointer; }

/* ── CHAPTERS LIST ── */
.vlt-select-all-wrap { margin-bottom:14px; padding:10px 14px; background:var(--vlt-border-light); border-radius:8px; }
.vlt-select-all-wrap label { display:flex; align-items:center; gap:10px; font-size:.88rem; cursor:pointer; }
.vlt-select-all-wrap input { width:18px; height:18px; accent-color:var(--vlt-primary); }
.vlt-chapters-list { display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:10px; max-height:380px; overflow-y:auto; padding:4px 2px; }
.vlt-chapter-item { display:flex; align-items:flex-start; gap:10px; padding:12px 14px; border:1.5px solid var(--vlt-border); border-radius:10px; background:#fff; cursor:pointer; transition:all .2s; font-size:.88rem; font-weight:600; color:var(--vlt-text); }
.vlt-chapter-item:hover   { border-color:var(--vlt-primary); background:var(--vlt-border-light); }
.vlt-chapter-item.checked { border-color:var(--vlt-primary); background:var(--vlt-border-light); }
.vlt-chapter-item input   { width:18px; height:18px; accent-color:var(--vlt-primary); flex-shrink:0; margin-top:1px; }

/* ── ACTIONS ── */
.vlt-actions { display:flex; justify-content:space-between; align-items:center; margin-top:32px; padding-top:20px; border-top:1px solid var(--vlt-border-light); }
.vlt-btn { padding:12px 28px; border-radius:50px; font-family:inherit; font-size:.95rem; font-weight:700; cursor:pointer; border:none; transition:all .2s; display:inline-flex; align-items:center; gap:8px; }
.vlt-btn-primary { background:var(--vlt-primary); color:#fff; }
.vlt-btn-primary:hover { background:var(--vlt-primary-light); transform:translateY(-2px); box-shadow:0 6px 20px rgba(26,127,78,.35); }
.vlt-btn-primary:disabled { background:#ccc; cursor:not-allowed; transform:none; box-shadow:none; }
.vlt-btn-ghost   { background:transparent; color:var(--vlt-muted); border:1.5px solid var(--vlt-border); }
.vlt-btn-ghost:hover { border-color:var(--vlt-primary); color:var(--vlt-primary); }
.vlt-btn-outline { background:transparent; color:var(--vlt-primary); border:1.5px solid var(--vlt-primary); }
.vlt-btn-outline:hover { background:var(--vlt-primary); color:#fff; }

/* ── SPINNER ── */
.vlt-spinner { width:56px; height:56px; border:5px solid var(--vlt-border); border-top-color:var(--vlt-primary); border-radius:50%; animation:vltSpin .8s linear infinite; margin:0 auto 20px; }
@keyframes vltSpin { to{transform:rotate(360deg)} }
.vlt-loading-text { font-size:1.1rem; font-weight:700; color:var(--vlt-primary-dark); }

/* ── OUTPUT TOOLBAR ── */
.vlt-output-toolbar { display:flex; justify-content:space-between; align-items:center; margin-bottom:24px; padding:14px 20px; background:var(--vlt-border-light); border-radius:12px; flex-wrap:wrap; gap:12px; }

/* ── TEST PAPER ── */
.vlt-paper { background:#fff; border:1px solid #e0e0e0; border-radius:12px; overflow:hidden; }
.vlt-paper .test-paper { padding:40px; font-family:'Times New Roman',serif; color:#111; }
.vlt-paper .tp-header  { text-align:center; margin-bottom:28px; padding-bottom:20px; border-bottom:2px solid var(--vlt-primary); }
.vlt-paper .tp-school  { font-size:1.2rem; font-weight:700; color:var(--vlt-primary-dark); margin-bottom:4px; }
.vlt-paper .tp-title   { font-size:1.6rem; font-weight:800; color:#0D1F16; margin:8px 0; }
.vlt-paper .tp-meta    { display:flex; flex-wrap:wrap; justify-content:center; gap:12px; font-size:.85rem; margin:10px 0; color:#444; }
.vlt-paper .tp-meta span { background:var(--vlt-border-light); padding:3px 10px; border-radius:20px; font-weight:600; }
.vlt-paper .tp-student-line { margin:14px 0; font-size:.95rem; color:#333; }
.vlt-paper .tp-instructions { text-align:left; margin-top:14px; font-size:.85rem; background:var(--vlt-bg); padding:10px 14px; border-radius:8px; border:1px solid var(--vlt-border); }
.vlt-paper .tp-instructions ol { margin:4px 0 0 16px; padding:0; }
.vlt-paper .tp-instructions li { margin-bottom:2px; }
.vlt-paper .tp-section { margin-top:28px; }
.vlt-paper .tp-section-long { border-top:2px solid var(--vlt-primary); margin-top:32px; padding-top:8px; }
.vlt-paper .tp-section-title { font-size:1.05rem; font-weight:700; color:var(--vlt-primary-dark); border-bottom:1px solid var(--vlt-border); padding-bottom:6px; margin-bottom:14px; }
.vlt-paper .tp-marks { font-size:.8rem; font-weight:400; color:#888; margin-left:8px; }
.vlt-paper .tp-section-inst { font-size:.85rem; color:#666; font-style:italic; margin-bottom:10px; }
.vlt-paper .tp-questions { padding-left:20px; margin:0; }
.vlt-paper .tp-q { margin-bottom:18px; line-height:1.6; }
.vlt-paper .tp-q-text { font-size:.95rem; font-weight:600; display:block; margin-bottom:6px; }
.vlt-paper .tp-options { list-style:none; padding-left:12px; margin:4px 0; }
.vlt-paper .tp-options li { margin-bottom:4px; font-size:.9rem; }
.vlt-paper .tp-tf-blank { font-weight:700; color:var(--vlt-primary); }
.vlt-paper .tp-answer-lines { margin-top:8px; }
.vlt-paper .tp-line { border-bottom:1px solid #bbb; margin-bottom:10px; height:22px; }
.vlt-paper .tp-long-lines .tp-line { height:26px; margin-bottom:12px; }
.vlt-paper .tp-match { width:100%; border-collapse:collapse; margin-top:8px; }
.vlt-paper .tp-match th { background:var(--vlt-border-light); padding:8px 14px; font-size:.88rem; border:1px solid var(--vlt-border); }
.vlt-paper .tp-match td { padding:7px 14px; font-size:.9rem; border:1px solid var(--vlt-border); }
.vlt-paper .tp-match-blanks { display:flex; gap:20px; flex-wrap:wrap; margin-top:12px; font-size:.9rem; font-weight:600; }
.vlt-paper .tp-answer-key { margin-top:36px; padding:24px; background:#0D1F16; color:#fff; border-radius:0 0 12px 12px; }
.vlt-paper .tp-ak-title { font-size:1.2rem; font-weight:800; color:var(--vlt-accent); margin-bottom:20px; text-align:center; }
.vlt-paper .tp-ak-sections { display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:20px; }
.vlt-paper .tp-ak-section h3 { font-size:.85rem; color:#9FE8C0; font-weight:700; margin-bottom:8px; text-transform:uppercase; letter-spacing:.5px; }
.vlt-paper .tp-ak-grid { display:flex; flex-wrap:wrap; gap:6px 16px; }
.vlt-paper .tp-ak-grid span { font-size:.85rem; color:#fff; background:rgba(255,255,255,.08); padding:3px 8px; border-radius:4px; }
.vlt-paper .tp-ak-la-list { margin:6px 0 0 16px; padding:0; }
.vlt-paper .tp-ak-la-list li { font-size:.85rem; color:#fff; margin-bottom:8px; line-height:1.6; }
.vlt-paper .tp-answer-key.hidden { display:none; }

/* ── PRINT — iframe method, no website chrome ── */
@media print {
  .no-print,.vlt-steps,.vlt-output-toolbar { display:none!important; }
  .vlt-paper { border:none!important; border-radius:0!important; }
  .vlt-paper .tp-answer-key { -webkit-print-color-adjust:exact; print-color-adjust:exact; }
  @page { margin:1.5cm; size:A4; }
}

/* ── RESPONSIVE ── */
@media(max-width:600px){
  .vlt-paper .test-paper { padding:20px; }
  .vlt-actions { flex-direction:column; gap:10px; }
  .vlt-actions .vlt-btn { width:100%; justify-content:center; }
  .vlt-output-toolbar { flex-direction:column; }
  .vlt-output-toolbar div { width:100%; display:flex; gap:8px; flex-wrap:wrap; }
}