/* ============================================================
   MONDO QUANTUM — Design System (app corsi)
   Palette ufficiale Stefania Cherici / Metodo SRC®
   prugna + oro su crema. Font Quicksand + Cormorant Garamond.
   ============================================================ */
:root{
  /* Brand */
  --plum:      #6b3d8e;   /* primario */
  --plum-dark: #4a2768;   /* hover / gradienti */
  --plum-deep: #2d1b3d;   /* testo scuro / superfici scure */
  --plum-soft: #f5ecf5;   /* pill / sfondi tenui */
  --gold:      #c9a96e;   /* accento */
  --gold-dark: #a08654;
  --gold-soft: #e6d3a3;

  /* Superfici */
  --bg:    #fbf7f2;       /* sfondo pagina (crema) */
  --bg2:   #ffffff;       /* card / superfici */
  --bg3:   #fcf8f9;       /* superfici alternate */
  --line:  #e7d8e3;       /* bordi */
  --line-strong:#d4bdcb;

  /* Testo */
  --txt:   #2d1b3d;
  --txt2:  #5a4a6e;
  --txt3:  #8b7a96;

  /* Stato */
  --red:   #c44569;
  --green: #3a8f6f;
  --yellow:#c9a96e;

  /* Forma */
  --r:   16px;
  --r-s: 11px;
  --r-pill: 999px;
  --shadow:    0 12px 34px rgba(74,39,104,.13);
  --shadow-sm: 0 3px 14px rgba(74,39,104,.08);

  /* alias compatibilità (il player usa questi nomi) */
  --teal:      var(--plum);
  --teal-dark: var(--plum-dark);
  --teal-soft: var(--plum-soft);

  --grad: linear-gradient(135deg, var(--plum) 0%, var(--plum-dark) 100%);
  --grad-gold: linear-gradient(135deg, var(--gold-soft) 0%, var(--gold) 100%);
  --font: 'Quicksand', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--txt);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
  /* aree sicure per l'app installata (notch/home bar) */
  padding-top:env(safe-area-inset-top);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ---- Layout ---- */
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}

/* ---- Topbar ---- */
.topbar{
  background:rgba(255,255,255,.85);backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
  padding-top:env(safe-area-inset-top);
}
.topbar .wrap{display:flex;align-items:center;gap:14px;height:72px}
.brand{display:flex;align-items:center;gap:11px}
.brand .logo{height:40px;width:40px;border-radius:11px;box-shadow:var(--shadow-sm)}
.brand .word{font-family:var(--serif);font-weight:600;font-size:1.32rem;letter-spacing:.01em;color:var(--plum-deep);line-height:1}
.brand .word b{font-weight:700;font-style:italic;color:var(--plum)}
.topbar .spacer{flex:1}
.topbar .user{display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--txt2)}
.avatar{
  width:36px;height:36px;border-radius:50%;background:var(--grad);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.9rem;flex:none;
}

/* ---- Bottoni ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font);font-weight:700;font-size:.95rem;
  padding:12px 22px;border-radius:var(--r-pill);border:0;cursor:pointer;
  transition:transform .12s ease, box-shadow .12s ease, background .15s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{box-shadow:var(--shadow)}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:var(--gold-dark)}
.btn-ghost{background:transparent;color:var(--plum-dark);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--plum);color:var(--plum)}
.btn-block{display:flex;width:100%}

/* ---- Pill / badge ---- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.72rem;font-weight:700;letter-spacing:.02em;
  padding:5px 11px;border-radius:var(--r-pill);
  background:var(--plum-soft);color:var(--plum-dark);
}
.pill-gold{background:rgba(201,169,110,.18);color:var(--gold-dark)}

/* ---- Card corso ---- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.card{
  background:var(--bg2);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .14s ease, box-shadow .14s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .cover{aspect-ratio:16/9;width:100%;object-fit:cover;background:var(--plum-soft)}
.card .cover-ph{
  aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;
  background:var(--grad);color:#fff;font-size:2.4rem;
}
.card .body{padding:16px 18px 18px}
.card .prof{font-size:.78rem;color:var(--gold-dark);font-weight:700;margin-bottom:4px}
.card .title{font-family:var(--serif);font-size:1.32rem;font-weight:600;line-height:1.2;margin-bottom:8px;color:var(--plum-deep)}
.card .meta{display:flex;align-items:center;gap:10px;font-size:.82rem;color:var(--txt2);margin-top:12px}
.card .badges{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}

/* ---- Progress bar ---- */
.progress{height:7px;border-radius:var(--r-pill);background:var(--line);overflow:hidden;margin-top:12px}
.progress > i{display:block;height:100%;background:var(--grad-gold);border-radius:inherit;transition:width .3s ease}

/* ---- Sezioni ---- */
.section-h{display:flex;align-items:center;gap:14px;margin:34px 0 18px}
.section-h h2{font-family:var(--serif);font-size:1.9rem;font-weight:600;letter-spacing:-.01em;color:var(--plum-deep)}
.section-h .line{flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent)}

/* ---- Stato vuoto ---- */
.empty{
  text-align:center;padding:60px 20px;color:var(--txt2);
  background:var(--bg2);border:1px dashed var(--line-strong);border-radius:var(--r);
}
.empty .ico{font-size:2.6rem;margin-bottom:12px}

/* ---- Card login ---- */
.auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(120% 100% at 50% -10%, var(--plum-soft), var(--bg) 60%)}
.auth-card{
  background:var(--bg2);border-radius:22px;box-shadow:var(--shadow);
  width:100%;max-width:410px;padding:40px 32px;text-align:center;border:1px solid var(--line);
}
.auth-card .logo{height:70px;width:70px;border-radius:18px;margin:0 auto 18px;box-shadow:var(--shadow-sm)}
.auth-card h1{font-family:var(--serif);font-size:1.75rem;font-weight:600;margin-bottom:6px;color:var(--plum-deep)}
.auth-card p.sub{color:var(--txt2);font-size:.92rem;margin-bottom:26px}
.field{text-align:left;margin-bottom:16px}
.field label{display:block;font-size:.82rem;font-weight:700;color:var(--txt2);margin-bottom:6px}
.field input{
  width:100%;padding:14px 15px;border:1.5px solid var(--line);border-radius:var(--r-s);
  font-family:var(--font);font-size:.95rem;background:var(--bg3);transition:border .15s;color:var(--txt);
}
.field input:focus{outline:0;border-color:var(--plum);background:#fff}
.auth-err{color:var(--red);font-size:.85rem;margin-top:-6px;margin-bottom:14px;min-height:1em;line-height:1.5}
.auth-alt{margin-top:18px;font-size:.88rem;color:var(--txt2)}
.auth-alt a{color:var(--plum-dark);font-weight:700;cursor:pointer}

/* ---- Util ---- */
.center{text-align:center}
.muted{color:var(--txt2)}
.hidden{display:none!important}

@media(max-width:640px){
  .topbar .wrap{height:60px}
  .brand .word{font-size:1.15rem}
  .brand .logo{height:34px;width:34px}
  .grid{grid-template-columns:1fr}
  .section-h h2{font-size:1.55rem}
}