/* ═══════════════════════════════════════════════════════════════
   AVALMAP MANAGEMENT UI — E4 FINAL
   Interfície de gestió educativa: jerarquia, densitat, llegibilitat.
   Sense dependències tipogràfiques externes.
   ═══════════════════════════════════════════════════════════════ */

:root {
  --r: 2px;
  --r2: 3px;
  --fb: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --fh: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --fm: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --nav-bg: #233343;
  --nav-bg-2: #1d2a37;
  --nav-border: #344a5e;
  --nav-text: #c8d2dc;
  --nav-muted: #8494a3;
  --nav-active: #ffffff;
  --nav-accent: #77b6a7;
  --focus: #2f6f88;
  --shadow-menu: 0 12px 28px rgba(15, 23, 42, .16);
}

html.light {
  --bg: #f3f5f7;
  --s1: #ffffff;
  --s2: #f8f9fb;
  --s3: #eef1f4;
  --s4: #e5e9ee;
  --b1: #dce1e6;
  --b2: #c5cdd5;
  --txt: #1f2a33;
  --txt2: #34424d;
  --txt3: #52616d;
  --gold: #b87816;
  --teal: #24796d;
  --purple: #675d9a;
  --ae: #23734f; --ae-bg: #edf7f1; --ae-b: #acd2bc;
  --an: #2f668d; --an-bg: #eef5fa; --an-b: #b6cddd;
  --as: #9a6212; --as-bg: #fff8e8; --as-b: #e3c990;
  --na: #a33c3c; --na-bg: #fff1f1; --na-b: #e0b3b3;
}

html:not(.light) {
  --nav-bg: #151d26;
  --nav-bg-2: #111820;
  --nav-border: #293846;
  --nav-text: #cad3da;
  --nav-muted: #7e8d99;
  --nav-active: #ffffff;
  --nav-accent: #69aa9b;
}

body { letter-spacing: 0; }

/* ── App shell ─────────────────────────────────────────────── */
#topbar {
  height: 52px;
  padding: 0 16px;
  gap: 9px;
  background: var(--s1);
  border-bottom: 1px solid var(--b1);
  box-shadow: none;
}
#app { height: calc(100vh - 52px); }
.tb-logo img { height: 31px !important; }
.tb-center {
  font-family: var(--fb);
  font-size: .72rem;
  letter-spacing: 0;
  color: var(--txt3);
  border-left: 1px solid var(--b1);
  padding-left: 10px;
}
.tb-session-status {
  border: 1px solid var(--b1);
  background: var(--s2);
  padding: 4px 8px;
  border-radius: 2px;
  font-family: var(--fm);
  font-size: .63rem;
}
.tb-session-status.loaded { border-color: var(--ae-b); background: var(--ae-bg); }
.tb-session-status.dirty { border-color: var(--as-b); background: var(--as-bg); }

#global-search {
  width: 230px !important;
  height: 30px;
  background: var(--s2);
  border-color: var(--b1);
}
#global-results { top: 52px !important; box-shadow: var(--shadow-menu) !important; }

#sidebar {
  width: 238px;
  min-width: 238px;
  padding: 8px 8px 22px;
  background: var(--nav-bg);
  border-right: 1px solid var(--nav-border);
}
#sidebar.collapsed { width: 54px; min-width: 54px; }
#sidebar #sb-toggle-btn button,
#sidebar .sb-load-icon { color: var(--nav-muted); }
#sidebar .sb-divider { background: var(--nav-border); margin: 7px 4px; }
#sidebar .sb-head-collapsible {
  min-height: 31px;
  padding: 6px 8px;
  border-radius: 2px;
  font-family: var(--fb);
  font-size: .66rem;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: .095em;
  font-weight: 700;
  color: var(--nav-muted);
}
#sidebar .sb-head-collapsible:hover { background: rgba(255,255,255,.04); color: var(--nav-text); }
#sidebar .sb-item {
  min-height: 32px;
  padding: 6px 8px 6px 12px;
  border-radius: 2px;
  font-family: var(--fb);
  font-size: .76rem;
  letter-spacing: 0;
  font-weight: 500;
  color: var(--nav-text);
  gap: 8px;
}
#sidebar .sb-item:hover { background: rgba(255,255,255,.055); color: var(--nav-active); }
#sidebar .sb-item.active {
  background: rgba(119,182,167,.13);
  color: var(--nav-active);
  padding-left: 12px;
  border-left: none;
  box-shadow: inset 0 0 0 1px rgba(119,182,167,.22);
}
#sidebar .sb-item.active .sb-icon { color: var(--nav-accent); }
#sidebar .sb-icon { width: 18px; color: var(--nav-muted); opacity: 1; }
#sidebar .sb-badge { background: rgba(255,255,255,.08); color: var(--nav-muted); border-radius: 2px; }
#sidebar .sb-dot { width: 5px; height: 5px; }
#sidebar .sb-load-icon { border-color: var(--nav-border); background: rgba(255,255,255,.025); }
#sidebar .sb-load-icon:hover { border-color: var(--nav-accent); color: var(--nav-accent); }
#sidebar [style*="text-transform:uppercase"] { color: var(--nav-muted) !important; }

/* ── Navegació i capçaleres ────────────────────────────────── */
.tab-bar {
  min-height: 46px;
  padding: 0 18px;
  background: var(--s1);
  border-bottom-color: var(--b1);
}
.tab-btn {
  font-family: var(--fb);
  font-size: .76rem;
  letter-spacing: 0;
  font-weight: 600;
  padding: 13px 14px 11px;
}
.tab-btn.active { color: var(--focus); border-bottom-color: var(--focus); }

.panel-header {
  min-height: 66px;
  padding: 13px 18px;
  background: var(--s1);
  border-bottom: 1px solid var(--b1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-shrink: 0;
}
.panel-header h2 {
  margin: 0;
  font-family: var(--fb);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--txt);
}
.panel-header p { margin: 3px 0 0; font-size: .72rem; color: var(--txt3); line-height: 1.35; }

/* ── Controls ──────────────────────────────────────────────── */
.btn {
  border-radius: 2px;
  min-height: 30px;
  padding: 5px 10px;
  font-family: var(--fb);
  font-weight: 600;
  letter-spacing: 0;
  background: var(--s1);
  border-color: var(--b2);
  box-shadow: none;
}
.btn:hover { border-color: var(--focus); color: var(--focus); background: var(--s2); }
.btn-primary { background: var(--focus); border-color: var(--focus); color: #fff; }
.btn-primary:hover { background: #285f74; border-color: #285f74; color: #fff; }
.btn-ai { background: #625f8f; border: 1px solid #625f8f; color:#fff; }
.btn-ai:hover { background: #514e78; border-color:#514e78; color:#fff; }
.form-input {
  min-height: 30px;
  border-radius: 2px;
  background: var(--s1);
  border-color: var(--b2);
  padding: 5px 8px;
}
.form-input:focus { border-color: var(--focus); box-shadow: 0 0 0 2px rgba(47,111,136,.10); }

.tb-menu-pop { border-radius: 2px !important; box-shadow: var(--shadow-menu) !important; }
.tb-menu-item { border-radius: 2px !important; }

/* ── Cards / metrics: més eina, menys SaaS ─────────────────── */
.card, .stu-card, .val-report, .tut-step, .tut-cols-box {
  border-radius: 2px !important;
  box-shadow: none !important;
}
.card { padding: 14px 15px; }
.card-title, .stu-card-title {
  font-family: var(--fb);
  letter-spacing: .055em;
  font-size: .66rem;
  font-weight: 700;
  color: var(--txt3);
}
.stats-row { gap: 0; border: 1px solid var(--b1); background: var(--s1); }
.stat-box {
  min-width: 132px;
  flex: 1;
  border: none !important;
  border-right: 1px solid var(--b1) !important;
  border-radius: 0 !important;
  background: var(--s1) !important;
  padding: 11px 13px;
}
.stat-box:last-child { border-right: none !important; }
.stat-box .v { font-family: var(--fm); font-size: 1.25rem; font-weight: 700; color: var(--txt); }
.stat-box .l { font-family: var(--fb); font-size: .63rem; letter-spacing: .035em; color: var(--txt3); text-transform: none; }
.stat-box.ae .v { color: var(--ae); }
.stat-box.an .v { color: var(--an); }
.stat-box.as_ .v { color: var(--as); }
.stat-box.na .v { color: var(--na); }
.stat-box._llf:hover { transform: none; box-shadow: inset 0 -2px 0 var(--focus) !important; background: var(--s2) !important; }

/* ── Taules de gestió ─────────────────────────────────────── */
.tbl-wrap { border-radius: 2px; background: var(--s1); }
table { font-size: .76rem; }
th {
  position: sticky;
  top: 0;
  z-index: 2;
  height: 34px;
  padding: 7px 9px;
  font-family: var(--fb);
  font-size: .62rem;
  letter-spacing: .055em;
  background: var(--s3);
  color: var(--txt2);
}
td { min-height: 36px; padding: 7px 9px; }
tbody tr:nth-child(even) td { background: color-mix(in srgb, var(--s2) 52%, transparent); }
tr:hover td { background: var(--s3) !important; }

/* ── Avisos, chips, modals ────────────────────────────────── */
.alert, .chip, .flag, .flag-check { border-radius: 2px !important; }
.chip { padding: 2px 6px; }
.modal { border-radius: 3px; box-shadow: 0 20px 55px rgba(0,0,0,.28); }
.drop-zone { border-radius: 2px; background: var(--s2); }
#toast { border-radius: 2px; box-shadow: 0 8px 24px rgba(0,0,0,.2); }

/* ── Professor HUD / centre overview ───────────────────────── */
.teacher-hud { display: grid; grid-template-columns: minmax(0,1.6fr) minmax(270px,.8fr); gap: 12px; margin-bottom: 14px; }
.hud-context, .hud-actions { border: 1px solid var(--b1); background: var(--s1); border-radius: 2px; }
.hud-context-head { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; padding:14px 15px 11px; border-bottom:1px solid var(--b1); }
.hud-title { font-size: 1.05rem; font-weight: 720; letter-spacing:-.015em; color:var(--txt); }
.hud-sub { margin-top:3px; font-size:.72rem; color:var(--txt3); }
.hud-evals { display:flex; gap:4px; flex-wrap:wrap; justify-content:flex-end; }
.hud-evals .btn { min-height:26px; padding:3px 8px; font-size:.68rem !important; }
.hud-metrics { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); }
.hud-metric { min-height:73px; padding:11px 13px; border-right:1px solid var(--b1); }
.hud-metric:last-child { border-right:0; }
.hud-metric .k { font-family:var(--fm); font-size:1.25rem; font-weight:750; line-height:1.1; }
.hud-metric .t { font-size:.67rem; color:var(--txt3); margin-top:5px; line-height:1.25; }
.hud-metric .s { font-size:.62rem; color:var(--txt3); margin-top:2px; }
.hud-actions-head { padding:11px 13px 8px; border-bottom:1px solid var(--b1); font-size:.68rem; font-weight:750; color:var(--txt2); text-transform:uppercase; letter-spacing:.055em; }
.hud-action { width:100%; border:0; border-bottom:1px solid var(--b1); background:transparent; color:var(--txt); text-align:left; cursor:pointer; padding:9px 12px; display:grid; grid-template-columns:24px 1fr auto; gap:8px; align-items:center; font-family:var(--fb); }
.hud-action:last-child { border-bottom:0; }
.hud-action:hover { background:var(--s2); }
.hud-action-icon { width:22px;height:22px;display:flex;align-items:center;justify-content:center;border:1px solid var(--b1);border-radius:2px;color:var(--txt3);font-size:.72rem; }
.hud-action strong { display:block; font-size:.72rem; font-weight:650; }
.hud-action small { display:block; color:var(--txt3); font-size:.63rem; margin-top:1px; }
.hud-action-count { font-family:var(--fm);font-size:.7rem;font-weight:700;color:var(--txt2); }
.hud-section-title { font-size:.67rem;font-weight:750;color:var(--txt3);text-transform:uppercase;letter-spacing:.06em;margin:15px 0 8px; }

/* ── Data Quality Center ──────────────────────────────────── */
.quality-layout { display:grid; grid-template-columns:235px minmax(0,1fr); gap:12px; align-items:start; }
.quality-score { position:sticky; top:12px; border:1px solid var(--b1); background:var(--s1); padding:15px; text-align:left; }
.quality-score-number { font-family:var(--fm);font-size:2.6rem;font-weight:800;line-height:1; }
.quality-score-track { height:5px;background:var(--s3);margin:12px 0 8px;overflow:hidden; }
.quality-score-fill { height:100%; }
.quality-issue-list { border:1px solid var(--b1); background:var(--s1); }
.quality-issue { display:grid;grid-template-columns:50px 1fr auto;gap:10px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--b1); }
.quality-issue:last-child { border-bottom:0; }
.quality-issue-num { font-family:var(--fm);font-size:1rem;font-weight:800; }
.quality-issue-title { font-size:.76rem;font-weight:700; }
.quality-issue-desc { margin-top:2px;font-size:.66rem;color:var(--txt3); }
.quality-detail { border:1px solid var(--b1);background:var(--s1);margin-top:12px; }
.quality-detail-head { padding:10px 12px;border-bottom:1px solid var(--b1);display:flex;align-items:center;justify-content:space-between;gap:10px; }

/* ── Utility line icons generated by ui/icons.js ─────────── */
.aval-icon { width:16px;height:16px;display:block;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round; }
.sb-icon .aval-icon { width:15px;height:15px; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1100px) {
  .teacher-hud { grid-template-columns: 1fr; }
  .hud-actions { display:grid; grid-template-columns:repeat(3,1fr); }
  .hud-actions-head { grid-column:1/-1; }
  .hud-action { border-right:1px solid var(--b1); }
  .quality-layout { grid-template-columns:1fr; }
  .quality-score { position:static; }
}
@media (max-width: 760px) {
  #topbar { height:52px; padding:0 8px; }
  #app { height:calc(100vh - 52px); }
  #global-search { width:150px !important; }
  .tb-center, #tb-session-status, #privacy-btn { display:none; }
  .hud-metrics { grid-template-columns:repeat(2,1fr); }
  .hud-metric:nth-child(2) { border-right:0; }
  .hud-metric:nth-child(-n+2) { border-bottom:1px solid var(--b1); }
  .hud-actions { display:block; }
  .quality-issue { grid-template-columns:42px 1fr; }
  .quality-issue .btn { grid-column:2; justify-self:start; }
}


/* ── E4-Final usability refinements ───────────────────────── */
#sidebar button[id^="del-ev-"] { opacity:0; pointer-events:none; transition:opacity .12s ease; }
#sidebar .sb-item:hover button[id^="del-ev-"],
#sidebar .sb-item:focus-within button[id^="del-ev-"] { opacity:1; pointer-events:auto; }

@media (min-width:761px) and (max-width:1000px) {
  #sidebar { width:58px; min-width:58px; padding-left:6px; padding-right:6px; }
  #sidebar .sb-lbl,
  #sidebar .sb-badge,
  #sidebar .sb-chevron,
  #sidebar .sb-load-icon,
  #sidebar [style*="text-transform:uppercase"] { display:none !important; }
  #sidebar .sb-head-collapsible,
  #sidebar .sb-item { justify-content:center; padding-left:7px; padding-right:7px; gap:0; }
  #sidebar .sb-head-collapsible { min-height:30px; }
  #sidebar .sb-item.active { padding-left:7px; }
  #sidebar .sb-icon { width:18px; margin:0; display:flex; justify-content:center; }
  #sidebar button[id^="del-ev-"] { display:none !important; }
  #sidebar #sb-toggle-btn { justify-content:center !important; }
  #sidebar #sb-toggle-btn button { transform:rotate(180deg); }
}