/* =========================================================
   SAT · Socratic AI Tutor — tema moderno
   Caricato DOPO i CSS di pagina: ridefinisce palette, tipografia,
   superfici e componenti usando i colori del logo.
   ========================================================= */
:root {
  --navy-950: #061f3a;
  --navy-900: #082d52;
  --navy-800: #0a3d6b;   /* blu del logo */
  --navy-700: #14508a;
  --navy-100: #e3edf7;
  --navy-50:  #f1f6fb;
  --teal-700: #0c7673;
  --teal-600: #11918e;   /* verde acqua del logo */
  --teal-500: #1aa6a2;
  --teal-100: #d9f1f0;
  --teal-50:  #eefaf9;
  --ink:      #0f2236;
  --ink-2:    #3c5068;
  --muted:    #70829a;
  --line:     #e2e9f1;
  --bg:       #f4f7fb;
  --card:     #ffffff;
  --ok:       #16a37f;
  --warn:     #e9a23b;
  --bad:      #d6455d;
  --radius:   14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(8,45,82,.06), 0 1px 3px rgba(8,45,82,.05);
  --shadow:    0 4px 24px rgba(8,45,82,.08);
  --shadow-lg: 0 18px 50px rgba(8,45,82,.16);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html, body {
  background: var(--bg) !important;
  color: var(--ink);
  font-family: var(--font) !important;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { color: var(--navy-800); letter-spacing: -.01em; }
a { color: inherit; }
::selection { background: var(--teal-100); }

/* ---------- Brand ---------- */
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 44px; height: 44px; border-radius: 12px; background: #fff; padding: 3px; box-shadow: var(--shadow-sm); object-fit: contain; }
.brand .brand-name { font-weight: 800; font-size: 1.25rem; letter-spacing: .02em; color: #fff; line-height: 1; }
.brand .brand-sub { font-size: .68rem; font-weight: 500; color: rgba(255,255,255,.7); letter-spacing: .04em; margin-top: 3px; }

/* ---------- Bottoni ---------- */
.btn, .btn-action, .btn-back, #SendBtn {
  font-family: var(--font);
  border-radius: 10px !important;
  font-weight: 600 !important;
  letter-spacing: .005em;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, opacity .15s ease;
}
.btn { padding: 10px 18px; }
.btn:hover { opacity: 1; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(8,45,82,.18); }
.btn-primary { background: linear-gradient(135deg, var(--navy-800), var(--navy-700)) !important; }
.btn-success { background: linear-gradient(135deg, var(--teal-600), var(--teal-500)) !important; }
.btn-danger  { background: var(--bad) !important; }
.btn-warning { background: var(--warn) !important; color: #3a2605 !important; }
.btn-secondary { background: var(--navy-100) !important; color: var(--navy-800) !important; }
.btn-info { background: var(--teal-600) !important; }
.btn-orange { background: var(--warn) !important; }
.btn-outline { background: transparent !important; color: var(--navy-800) !important; border: 1.5px solid var(--navy-800) !important; }
.btn-sm { padding: 6px 12px; font-size: .82rem; }

/* ---------- Form ---------- */
input, select, textarea, .form-control {
  font-family: var(--font);
  font-size: .95rem;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--line) !important;
  border-radius: 10px !important;
  padding: 11px 14px;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus, .form-control:focus {
  outline: none;
  border-color: var(--teal-600) !important;
  box-shadow: 0 0 0 4px rgba(17,145,142,.15);
}
input::placeholder, textarea::placeholder { color: #9aabbe; }
.form-label { font-weight: 600; color: var(--ink-2); font-size: .85rem; }

.badge {
  background: var(--teal-100) !important;
  color: var(--teal-700) !important;
  font-weight: 700; letter-spacing: .06em;
  padding: 5px 14px; border-radius: 999px;
}

.msg-error, .msg-success {
  border-radius: 10px; font-weight: 600; font-size: .9rem; padding: 12px 16px;
  text-align: left;
}
.msg-error { background: #fdecef; color: #9c2339; border: 1px solid #f6c4cd; }
.msg-success { background: var(--teal-50); color: var(--teal-700); border: 1px solid var(--teal-100); }

/* ---------- Tabelle ---------- */
.data-table { border-radius: 12px; overflow: hidden; border: 1px solid var(--line); background: #fff; }
.data-table th {
  background: var(--navy-50); color: var(--navy-800);
  font-size: .72rem; text-transform: uppercase; letter-spacing: .07em;
  border-bottom: 1px solid var(--line); padding: 12px 14px;
}
.data-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--navy-50); }
.stats-total td { background: var(--teal-50) !important; color: var(--teal-700); border-top: 2px solid var(--teal-600) !important; }

.corso-accordion, .macro-accordion {
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px;
}
summary { color: var(--navy-800); }

/* =========================================================
   LOGIN
   ========================================================= */
.auth-shell { min-height: 100vh; display: grid; grid-template-columns: 1.05fr 1fr; }
.auth-hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(900px 500px at 15% 10%, rgba(26,166,162,.45), transparent 60%),
    radial-gradient(700px 500px at 90% 95%, rgba(17,145,142,.35), transparent 60%),
    linear-gradient(160deg, var(--navy-950), var(--navy-800));
  display: flex; flex-direction: column; justify-content: space-between; padding: 48px 56px;
}
.auth-hero::after {
  content: ""; position: absolute; width: 520px; height: 520px; right: -160px; top: 38%;
  border-radius: 50%; border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 0 0 70px rgba(255,255,255,.03), 0 0 0 140px rgba(255,255,255,.02);
}
.auth-hero .brand img { width: 156px; height: 156px; }
.hero-body { position: relative; z-index: 1; max-width: 520px; }
.hero-logo { width: 190px; height: 190px; border-radius: 36px; background: #fff; padding: 12px; box-shadow: 0 30px 60px rgba(0,0,0,.35); margin-bottom: 34px; object-fit: contain; }
.hero-body h1 { color: #fff; font-size: 2.5rem; line-height: 1.12; font-weight: 800; margin-bottom: 16px; }
.hero-body h1 span { color: #7fe3df; }
.hero-body p { color: rgba(255,255,255,.78); font-size: 1.05rem; max-width: 460px; }
.hero-points { list-style: none; margin-top: 28px; display: grid; gap: 12px; }
.hero-points li { display: flex; gap: 12px; align-items: center; color: rgba(255,255,255,.9); font-size: .95rem; }
.hero-points li::before { content: "✓"; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: rgba(127,227,223,.2); color: #7fe3df; font-weight: 800; font-size: .8rem; flex: none; }
.hero-foot { position: relative; z-index: 1; font-size: .8rem; color: rgba(255,255,255,.55); }

.auth-panel { display: flex; align-items: center; justify-content: center; padding: 40px 24px; background: var(--bg); }
.auth-panel .ContainerUser { min-height: 0; padding: 0; width: 100%; max-width: 440px; }
.AuthSection { background: #fff; border-radius: 22px !important; box-shadow: var(--shadow-lg) !important; padding: 38px !important; max-width: 440px; border: 1px solid var(--line); }
.AuthSection h2 { font-size: 1.6rem; text-align: left; margin-bottom: 4px; }
.auth-lead { color: var(--muted); margin-bottom: 22px; font-size: .95rem; }
.auth-mobile-logo { display: none; }
.pwd-icon { color: var(--navy-700); }
.AuthSection .btn-block { padding: 13px; margin-bottom: 12px; }

/* =========================================================
   TOPBAR (pagine senza sidebar: corsi, profilo)
   ========================================================= */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 32px; background: linear-gradient(100deg, var(--navy-950), var(--navy-800));
  box-shadow: 0 4px 20px rgba(6,31,58,.25);
}
.topbar nav { display: flex; gap: 6px; align-items: center; }
.topbar nav a {
  color: rgba(255,255,255,.82); font-weight: 600; font-size: .9rem;
  padding: 8px 14px; border-radius: 9px; transition: background .15s;
}
.topbar nav a:hover { background: rgba(255,255,255,.12); color: #fff; }
.topbar nav a.active { background: rgba(127,227,223,.18); color: #9ff0ec; }
.topbar nav a.logout { border: 1px solid rgba(255,255,255,.28); margin-left: 8px; }

/* =========================================================
   CORSI (index)
   ========================================================= */
.index-wrapper { max-width: 1040px; padding: 8px 28px 60px; margin: 34px auto 0; }
.index-header { border: none; padding: 0; margin-bottom: 26px; }
.index-header h2 { font-size: 2rem; font-weight: 800; }
.index-header h2::after { content: ""; display: block; width: 52px; height: 4px; border-radius: 4px; margin-top: 12px; background: linear-gradient(90deg, var(--teal-600), var(--navy-800)); }
.index-header p { color: var(--muted); margin-top: 12px; }
.table-container { background: transparent; box-shadow: none; overflow: visible; }
.course-table { border-collapse: separate; border-spacing: 0 12px; }
.course-table thead { background: transparent; color: var(--muted); }
.course-table th { text-transform: uppercase; font-size: .72rem; letter-spacing: .08em; padding: 0 22px 2px; }
.course-table tbody tr { background: #fff; box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s; }
.course-table tbody tr:hover { background: #fff; transform: translateY(-2px); box-shadow: var(--shadow); }
.course-table td { border: none; padding: 20px 22px; }
.course-table td:first-child { border-radius: 14px 0 0 14px; border-left: 5px solid var(--teal-600); }
.course-table td:last-child { border-radius: 0 14px 14px 0; }
.course-title-cell { color: var(--navy-800); font-size: 1.08em; }
.course-prof-cell { color: var(--muted); }
.btn-action { height: 38px; padding: 0 18px; font-size: .88rem; }
.btn-action:hover { opacity: 1; box-shadow: 0 6px 16px rgba(8,45,82,.2); }
.btn-chat { background: linear-gradient(135deg, var(--navy-800), var(--navy-700)); }
.btn-manage { background: var(--teal-100); color: var(--teal-700); }
.btn-back { color: var(--navy-800); border: 1.5px solid var(--navy-800); border-radius: 10px; }
.btn-back:hover { background: var(--navy-800); color: #fff; box-shadow: none; }

/* =========================================================
   PROFILO (User)
   ========================================================= */
.ContainerUser { padding-top: 34px; }
.ProfileSection { border-radius: 20px !important; box-shadow: var(--shadow) !important; border: 1px solid var(--line); padding: 0 !important; overflow: hidden; }
.profile-hero {
  display: flex; align-items: center; gap: 20px; padding: 30px 34px; color: #fff;
  background: radial-gradient(500px 220px at 90% 0%, rgba(26,166,162,.55), transparent 70%), linear-gradient(120deg, var(--navy-900), var(--navy-700));
}
.profile-avatar { width: 64px; height: 64px; border-radius: 18px; background: #fff; color: var(--navy-800); display: grid; place-items: center; font-weight: 800; font-size: 1.5rem; box-shadow: 0 8px 20px rgba(0,0,0,.25); flex: none; }
.profile-hero h2 { color: #fff; font-size: 1.6rem; margin: 0 0 6px; }
.profile-hero .badge { background: rgba(127,227,223,.2) !important; color: #9ff0ec !important; }
.profile-body { padding: 8px 34px 34px; }
.tabs-nav { border-bottom: 1px solid var(--line); gap: 4px; margin: 6px 0 24px; }
.tab-btn { font-family: var(--font); font-weight: 600; font-size: .92rem; color: var(--muted); padding: 14px 16px; border-bottom: 3px solid transparent; margin-bottom: -1px; }
.tab-btn:hover { color: var(--navy-800); }
.tab-btn.active { color: var(--teal-700); border-bottom-color: var(--teal-600); }
.tab-content h3 { font-size: 1.15rem; margin-bottom: 14px; }
.checkpoint-row { background: var(--navy-50); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
.arg-name { color: var(--navy-800); }
.custom-progress-bar.small-bar { background: #dbe5f0; height: 8px; border-radius: 6px; max-width: 130px; }
.segment { background: transparent; border-radius: 6px; }
.segment-orange { background: var(--warn); }
.segment-yellow { background: var(--teal-500); }
.segment-green  { background: var(--ok); }
.text-orange { color: #c27f14 !important; } .text-yellow { color: var(--teal-600) !important; } .text-green { color: var(--ok) !important; }
.user-profile-link { color: var(--teal-700); font-weight: 600; }
.user-profile-link:hover { text-decoration: underline; }
hr { border: none; border-top: 1px solid var(--line); }
.course-list-item { border-bottom: 1px solid var(--line); padding: 12px 6px; }
.course-list-item:hover { background: var(--navy-50); }
.export-menu summary { background: var(--teal-600); font-family: var(--font); font-weight: 600; border-radius: 10px; padding: 6px 12px; }

/* =========================================================
   SIDEBAR condivisa (chat, storico, gestione corso)
   ========================================================= */
.sidebar {
  background: radial-gradient(420px 320px at 0% 0%, rgba(26,166,162,.30), transparent 70%), linear-gradient(180deg, var(--navy-900), var(--navy-950)) !important;
  color: #fff; border-right: none !important; box-shadow: 4px 0 24px rgba(6,31,58,.18);
}
.sidebar-header { border-bottom: 1px solid rgba(255,255,255,.1) !important; padding: 20px 18px !important; }
.sidebar-header h2 { color: #fff; font-size: 1rem; margin-top: 14px; }
.sidebar-header .user-profile-link { display: flex; align-items: center; gap: 10px; color: #fff; margin-top: 14px; font-weight: 600; }
.user-chip-avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--teal-600); display: grid; place-items: center; font-weight: 700; font-size: .8rem; }
.nav-section-title { color: rgba(255,255,255,.5) !important; font-size: .68rem !important; letter-spacing: .12em; font-weight: 700; }
.nav-item, .sidebar-btn {
  font-family: var(--font); color: rgba(255,255,255,.82) !important; background: transparent !important;
  border-radius: 10px !important; border: none; font-weight: 500; transition: background .15s, color .15s;
}
.nav-item:hover, .sidebar-btn:hover { background: rgba(255,255,255,.1) !important; color: #fff !important; }
.nav-item.active, .sidebar-btn.active {
  background: linear-gradient(135deg, var(--teal-600), var(--teal-700)) !important; color: #fff !important;
  box-shadow: 0 6px 16px rgba(17,145,142,.35); font-weight: 600;
}
.sidebar-divider { border-color: rgba(255,255,255,.12) !important; }
.sidebar-footer { border-top: 1px solid rgba(255,255,255,.1) !important; }
.back-home-link, .sidebar-footer .btn-back {
  color: rgba(255,255,255,.85) !important; border: 1px solid rgba(255,255,255,.25) !important; background: transparent;
  border-radius: 10px; font-weight: 600;
}
.back-home-link:hover, .sidebar-footer .btn-back:hover { background: rgba(255,255,255,.12) !important; color: #fff !important; box-shadow: none; }
.course-badge { background: rgba(127,227,223,.18) !important; color: #9ff0ec !important; border-radius: 8px; font-weight: 600; }
.history-details dt { color: rgba(255,255,255,.5); } .history-details dd { color: #fff; }
.history-delete { border-radius: 10px; font-family: var(--font); }

/* =========================================================
   CHAT
   ========================================================= */
.main-content { background: var(--bg) !important; }
.chat-header { background: rgba(255,255,255,.85) !important; backdrop-filter: blur(10px); border-bottom: 1px solid var(--line) !important; box-shadow: var(--shadow-sm); }
.chat-header h2 { color: var(--navy-800); font-weight: 700; display: flex; align-items: center; gap: 12px; }
.chat-header h2::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--teal-500); box-shadow: 0 0 0 4px rgba(26,166,162,.2); }
#Chat { background: transparent !important; }
.UserMSG {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700)) !important; color: #fff !important;
  border-radius: 18px 18px 4px 18px !important; box-shadow: 0 6px 16px rgba(10,61,107,.22); border: none !important;
}
.ModelMSG, .ModelMSG .tutor-msg {
  background: #fff !important; color: var(--ink) !important; border: 1px solid var(--line) !important;
  border-radius: 18px 18px 18px 4px !important; box-shadow: var(--shadow-sm);
}
.ModelMSG { position: relative; }
.ModelMSG .tutor-msg { border: none !important; box-shadow: none; }
.ModelMSG code { background: var(--teal-50); color: var(--teal-700); border-radius: 5px; }
.ModelMSG pre { background: var(--navy-950) !important; color: #d6ecf6; border-radius: 12px; }
.input-container { background: rgba(255,255,255,.9) !important; border-top: 1px solid var(--line) !important; backdrop-filter: blur(10px); }
#UserMessage { border-radius: 14px !important; background: #fff; }
#SendBtn { background: linear-gradient(135deg, var(--teal-600), var(--teal-500)) !important; color: #fff !important; border: none; box-shadow: 0 6px 16px rgba(17,145,142,.3); }
#SendBtn:hover { background: linear-gradient(135deg, var(--teal-700), var(--teal-600)) !important; }
#AttachBtn { border-radius: 12px; background: var(--navy-50); border: 1.5px solid var(--line); }
#AttachBtn:hover { background: var(--teal-50); }
.attachment-chip { background: var(--teal-50); color: var(--teal-700); border: 1px solid var(--teal-100); border-radius: 999px; }
#select-model { border-radius: 10px; }
.chat-tokens { color: var(--muted); }
.btn-chat-vai { background: var(--teal-600) !important; border-radius: 10px !important; font-family: var(--font); }
.btn-chat-reset, .btn-chat-nuovo-esercizio { border-radius: 10px !important; font-family: var(--font); }
.btn-chat-nuovo-esercizio { background: var(--navy-800); }
.footer-tutor-selection, .footer-tutor-active { border-radius: 12px; }
.valutazione-box { border-radius: 12px; border: 1px solid var(--line); background: var(--navy-50); }
.criterio-superato { color: var(--ok); } .criterio-fallito { color: var(--bad); }
.alert-success { background: var(--teal-50); border-color: var(--teal-100); color: var(--teal-700); border-radius: 10px; }
.alert-info { background: var(--navy-50); border-color: var(--navy-100); color: var(--navy-800); border-radius: 10px; }
.history-system { color: var(--muted); background: var(--navy-50); border-radius: 999px; }
#Chat::-webkit-scrollbar-thumb { background: #c5d3e2; border-radius: 8px; }

/* Messaggio di benvenuto vuoto nella chat */
.welcome-card { max-width: 520px; margin: 8vh auto 0; text-align: center; color: var(--ink-2); }
.welcome-card img { width: 120px; border-radius: 28px; box-shadow: var(--shadow); margin-bottom: 18px; }

/* =========================================================
   GESTIONE CORSO
   ========================================================= */
.dashboard-wrapper { background: var(--bg); }
.main-header h1 { color: var(--navy-800); font-weight: 800; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.panel-title { color: var(--navy-800); }
.border-top-warning { border-top: 4px solid var(--warn) !important; }
.border-top-danger { border-top: 4px solid var(--bad) !important; }
.border-left-primary { border-left: 4px solid var(--navy-800) !important; }
.border-left-success { border-left: 4px solid var(--teal-600) !important; }
.border-left-warning { border-left: 4px solid var(--warn) !important; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); position: relative; overflow: hidden; }
.stat-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: linear-gradient(180deg, var(--teal-500), var(--navy-800)); }
.stat-value { color: var(--navy-800); font-weight: 800; }
.stat-label { color: var(--muted); }
.modern-list-item { border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.upload-box { border-radius: 12px; }
.badge-success { background: var(--teal-100) !important; color: var(--teal-700) !important; }
.badge-warning { background: #fdf0d8 !important; color: #8a5a07 !important; }
.badge-secondary { background: var(--navy-100) !important; color: var(--navy-800) !important; }
.console-container { border-radius: 12px; background: var(--navy-950); }
.checkbox-box { border-radius: 10px; border: 1px solid var(--line); background: var(--navy-50); }
.skl-card { border-radius: 12px; border-color: var(--line); }
.skl-chip { background: var(--teal-50); color: var(--teal-700); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .auth-shell { grid-template-columns: 1fr; }
  .auth-hero { display: none; }
  .auth-mobile-logo { display: block; width: 84px; margin: 0 auto 14px; }
  .topbar { padding: 10px 16px; }
  .topbar .brand-sub { display: none; }
  .profile-hero, .profile-body { padding-left: 20px; padding-right: 20px; }
}

.sidebar-footer { padding: 16px 18px; }
.back-home-link { display: block; text-align: center; padding: 10px 14px; }

/* Programma del corso e competenze */
.modern-list-title { color: var(--navy-800) !important; font-weight: 700; }
.modern-list-item { padding: 6px 4px; }
.modern-sublist { border-left: 3px solid var(--teal-100) !important; }
.btn-outline-warning { color: #a8700f !important; border-color: #e9c47a !important; border-radius: 9px !important; }
.btn-outline-danger { color: var(--bad) !important; border-color: #f0b6c0 !important; border-radius: 9px !important; }
.skl { background: var(--teal-50) !important; border: 1px solid var(--teal-100) !important; border-radius: 14px !important; }
.skl-title { color: var(--teal-700); }
.skl-card { background: #fff; box-shadow: var(--shadow-sm); }
.skl-card[open] { border-color: var(--teal-600) !important; box-shadow: 0 0 0 3px rgba(17,145,142,.12); }
.skl-code { background: var(--navy-100) !important; color: var(--navy-800) !important; border-radius: 6px; }
.skl-code-error { background: #fdecef !important; color: #9c2339 !important; }
.skl-new { background: #fff; border: 1.5px dashed var(--teal-500) !important; border-radius: 12px; }
.skl-section-title { color: var(--teal-700); }

/* Mappa competenze della classe */
:root { --st0:#d6455d; --st1:#e9a23b; --st2:#1aa6a2; --st3:#0a3d6b; }
.map-legend { display:flex; gap:20px; flex-wrap:wrap; margin:4px 0 16px; font-size:.8rem; color:var(--ink-2); font-weight:600; }
.map-legend .lg { display:inline-block; width:12px; height:12px; border-radius:4px; margin-right:7px; vertical-align:-1px; }
.lg-0,.d0{background:var(--st0)} .lg-1,.d1{background:var(--st1)} .lg-2,.d2{background:var(--st2)} .lg-3,.d3{background:var(--st3)}
.skill-map { display:grid; gap:10px; }
.skill-row { display:grid; grid-template-columns: minmax(240px,2.2fr) 82px minmax(150px,1.2fr) minmax(190px,1.4fr); gap:22px; align-items:center;
  padding:14px 18px; border:1px solid var(--line); border-radius:12px; background:#fff; transition: box-shadow .15s, transform .15s; }
.skill-row:hover { box-shadow:var(--shadow); transform:translateY(-1px); }
.skill-topic { font-size:.68rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--teal-700); }
.skill-name { margin-top:3px; color:var(--ink); font-weight:500; }
.skill-name code, .panel code { background:var(--navy-100); color:var(--navy-800); padding:2px 8px; border-radius:6px; font-size:.78rem; font-weight:700; margin-right:6px; }
.skill-students { text-align:center; display:flex; flex-direction:column; line-height:1.1; }
.skill-students b { font-size:1.4rem; color:var(--navy-800); }
.skill-students small { color:var(--muted); font-size:.7rem; }
.skill-mastery { display:flex; align-items:center; gap:10px; }
.mastery-track { flex:1; height:10px; border-radius:999px; background:#e3ebf4; overflow:hidden; }
.mastery-fill { height:100%; border-radius:999px; background:linear-gradient(90deg,var(--teal-600),var(--navy-800)); }
.mastery-pct { font-weight:800; color:var(--navy-800); min-width:42px; text-align:right; font-variant-numeric:tabular-nums; }
.dist-bar { display:flex; height:12px; border-radius:999px; overflow:hidden; background:#e3ebf4; gap:2px; }
.dist-bar span { min-width:0; }
.dist-nums { display:flex; justify-content:space-between; margin-top:5px; font-size:.7rem; font-weight:700; padding:0 2px; }
.dist-nums span:nth-child(1){color:var(--st0)} .dist-nums span:nth-child(2){color:#b87a14} .dist-nums span:nth-child(3){color:var(--st2)} .dist-nums span:nth-child(4){color:var(--st3)}
@media (max-width:1100px){ .skill-row{grid-template-columns:1fr 1fr;} }

/* Errori più frequenti: Competenza e Codice sempre su una sola riga */
.errors-table th:nth-child(-n+2),
.errors-table td:nth-child(-n+2),
.errors-table td:nth-child(-n+2) code { white-space: nowrap; }