:root{
  --bg:#111;
  --card:#1a1a1a;
  --muted:#888;
  --text:#fff;
  --red:#c0392b;
  --green:#27ae60;
  --border:#2a2a2a;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}

body{
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  -webkit-text-size-adjust:100%;
}

/* HEADER */
.hdr{
  position:sticky;top:0;z-index:10;
  background:var(--card);
  border-bottom:2px solid var(--red);
  padding:14px 16px;
}

.hdr-inner{
  max-width:520px;
  margin:0 auto;
  display:flex;
  justify-content:center;
  align-items:center;
}

/* LOGO (desktop/tablet) */
.logo{
  width: 132px;
  height: 132px;
  border-radius: 50%;
  background: #fff;
  padding: 3px;
  border: 3px solid var(--red);
  box-shadow: 0 10px 22px rgba(0,0,0,.45);
  object-fit: contain;
  display:block;
  margin-top: 6px;
}

/* PAGE */
.page{
  padding:24px 16px calc(96px + env(safe-area-inset-bottom, 0px));
  max-width:520px;
  margin:0 auto;
}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
  margin-bottom:12px;
}

.title{font-size:18px;margin-bottom:14px}

.title-lg {
  font-size: 24px;
  font-weight: 900;
}

.label{
  display:block;
  color:#fff;
  font-size:12px;
  margin-bottom:6px;
  text-transform:uppercase;
  letter-spacing:1px;
}

.input{
  width:100%;
  padding:14px 14px;
  font-size:16px;
  border-radius:12px;
  background:#222;
  border:2px solid #333;
  color:var(--text);
  outline:none;
  margin-bottom:12px;
}
.input:focus{border-color:var(--red)}
.input::placeholder{color:rgba(255,255,255,0.7)}

.btn{
  width:100%;
  padding:14px 14px;
  border:none;
  border-radius:12px;
  font-weight:800;
  font-size:16px;
  cursor:pointer;
}
.btn.primary{background:var(--red);color:#fff}
.btn.secondary{background:#222;color:#fff;border:1px solid #333;margin-top:12px}
.btn.ghost{background:transparent;border:1px solid var(--border);color:#fff;width:auto;padding:10px 12px}

.msg{margin-top:10px;font-size:13px;min-height:18px}
.msg.err{color:#ff6b6b}
.msg.info{color:#fff}

.hidden{display:none !important}

/* ALUNO */
.row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  margin-bottom:12px;
}

.name{font-size:24px;font-weight:900;margin-bottom:6px}

.name-row{
  display:flex;
  align-items:center;
  gap:8px;
}

.badge{
  display:inline-block;
  padding:3px 12px;
  border-radius:999px;
  background:var(--green);
  font-size:11px;
  font-weight:900;
}

.kv{
  display:grid;
  grid-template-columns: 1fr auto;
  gap:10px 12px;
  padding-top:8px;
}

.k{
  color:#fff;
  font-size:14px;
  text-transform:uppercase;
  letter-spacing:1px;
}
.v{font-weight:900}

.status{
  margin-top:14px;
  padding:14px;
  border-radius:12px;
  border:1px solid var(--border);
  color:#fff;
  background:#141414;
}

/* BOTTOM NAV */
.bnav{
  position:fixed;left:0;right:0;bottom:0;z-index:20;
  display:flex;
  background:var(--card);
  border-top:1px solid var(--border);
  padding-bottom:env(safe-area-inset-bottom, 0px);
}

.navbtn{
  flex:1;
  background:transparent;
  border:none;
  color:#fff;
  padding:12px 6px;
  font-size:12px;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
}
.navbtn.on{color:var(--red)}
.navbtn svg{display:block}

/* ✅ MOBILE: logo menor + margens menores (fica melhor no celular) */
@media (max-width: 420px){
  .logo{
    width: 132px;
    height: 132px;
    padding: 3px;
    margin-top: 4px;
  }

  .page{
    padding:12px 12px calc(88px + env(safe-area-inset-bottom, 0px));
    max-width:520px;
    margin:0 auto;
  }

  .card{
    border-radius:14px;
    padding:14px;
  }

  .btn{
    padding:13px 14px;
    font-size:15px;
  }

  .input{
    padding:13px 14px;
    font-size:15px;
  }
}

/* ── CALENDAR / WEEK DAYS ─────────────────────────────────────── */
.dias-row{
  display:flex;
  gap:8px;
  overflow-x:auto;
  padding:4px 0 8px;
  scrollbar-width:none;
}
.dias-row::-webkit-scrollbar{display:none}

.dia-btn{
  flex-shrink:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
  padding:10px 14px;
  background:#222;
  border:2px solid #333;
  border-radius:12px;
  color:var(--text);
  cursor:pointer;
  min-width:58px;
}
.dia-btn.active{
  border-color:var(--red);
  background:#2a1010;
  color:#fff;
}
.dia-nome{font-size:15px;font-weight:900}
.dia-data{font-size:13px;color:#fff}
.dia-btn.active .dia-data{color:#e88}

/* ── SESSION CARDS ─────────────────────────────────────────────── */
.sessoes-lista{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:10px;
}

.sessao-card{
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 14px;
  background:#222;
  border:2px solid #333;
  border-radius:12px;
  cursor:pointer;
}
.sessao-card.active{
  border-color:var(--red);
  background:#2a1010;
}
.sessao-hor{
  font-size:17px;
  font-weight:900;
  color:var(--red);
  min-width:50px;
}
.sessao-nome{font-size:17px;font-weight:900;color:#fff}

/* ── PRESENCE BOX ───────────────────────────────────────────────── */
.presenca-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  margin:12px 0 8px;
  flex-wrap:wrap;
}

.presenca-titulo{
  font-size:15px;
  color:#fff;
  font-weight:900;
  letter-spacing:.5px;
}

.btn-sm{
  width:auto;
  padding:9px 16px;
  font-size:14px;
}

.btn-cancel{
  background:transparent;
  border:1px solid #fff;
  color:#fff;
  margin-top:10px;
  font-size:14px;
}

/* ── PRESENCE LIST ───────────────────────────────────────────────── */
.presenca-item{
  padding:10px 0;
  border-bottom:1px solid var(--border);
}
.presenca-item:last-child{border-bottom:none}

.presenca-info{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  flex-wrap:nowrap;
}

.presenca-nome{font-size:17px;font-weight:700;color:#fff}

.grad-info{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  flex-wrap:nowrap;
}

.grad-nome{
  flex:1;
  min-width:0;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.grad-badges{
  display:flex;
  align-items:center;
  gap:6px;
  flex-shrink:0;
}

.presenca-status{
  font-size:11px;
  font-weight:900;
  padding:3px 10px;
  border-radius:999px;
}
.status-ok  {background:#1a3a26;color:#4cd88a}
.status-pend{background:#2a2510;color:#e8c84a}
.status-err {background:#3a1010;color:#e86464}

.presenca-vazia{color:#fff;font-size:13px;padding:8px 0}
.loading{color:#fff;font-size:13px;padding:8px 0}

/* ── PROFESSOR ACTIONS ───────────────────────────────────────────── */
.prof-actions{
  display:flex;
  gap:8px;
  margin-top:8px;
}

.btn-ap{
  flex:1;
  padding:8px 10px;
  border:none;
  border-radius:10px;
  font-size:13px;
  font-weight:900;
  cursor:pointer;
}
.btn-ap.aprovar{background:#1a3a26;color:#4cd88a}
.btn-ap.reprovar{background:#3a1010;color:#e86464}
.btn-ap:active{opacity:.75}

/* ── BADGE VARIANTS ──────────────────────────────────────────────── */
.badge-prof{background:var(--red)}

/* ── UTILITIES ───────────────────────────────────────────────────── */
.mb8{margin-bottom:8px}

.divider{
  border:none;
  border-top:1px solid var(--border);
  margin:16px 0;
}

/* ── BIOMETRIA ───────────────────────────────────────────────────── */
.bio-icon{
  font-size:48px;
  text-align:center;
  margin-bottom:12px;
  line-height:1;
}

.bio-center{text-align:center}

.bio-subtitle{
  color:#fff;
  font-size:16px;
  text-align:center;
  margin-bottom:16px;
  line-height:1.5;
}

.bio-switch{
  margin-top:12px;
  font-size:13px;
}

.bio-desc{
  color:#fff;
  font-size:14px;
  line-height:1.6;
  margin-bottom:8px;
}

.bio-muted{color:#fff;font-size:13px}

.bio-list{
  list-style:disc;
  padding-left:20px;
  color:#fff;
  font-size:14px;
  line-height:1.9;
  margin-bottom:8px;
}

/* ── Stats row (student card) ─────────────────────────────── */
.stats-row {
  display: flex;
  gap: 12px;
  margin: 16px 0;
}

.stat-card {
  flex: 1;
  background: #2a2a2a;
  border-radius: 12px;
  padding: 16px 12px;
  text-align: center;
}

.stat-card--red {
  background: #c0392b;
}

.stat-num {
  font-size: 2.4rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: #fff;
  line-height: 1.3;
  font-weight: 700;
}

/* ── Bell button ─────────────────────────────────────────────── */
.row-actions{
  display:flex;
  align-items:center;
  gap:8px;
}

/* ── WhatsApp nav button ─────────────────────────────────────── */
#navWhatsApp{color:#25D366}
#navWhatsApp:active{opacity:.75}

.btn-bell{
  position:relative;
  background:transparent;
  border:1px solid var(--border);
  border-radius:50%;
  width:42px;
  height:42px;
  font-size:18px;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:0;
  color:var(--text);
  flex-shrink:0;
}
.btn-bell:active{opacity:.75}

.bell-badge{
  position:absolute;
  top:4px;
  right:4px;
  width:9px;
  height:9px;
  background:var(--red);
  border-radius:50%;
  border:2px solid var(--card);
}

/* ── Notifications screen ────────────────────────────────────── */
.notif-header{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.notif-header .title{margin-bottom:0}

.btn-back{
  background:transparent;
  border:1px solid var(--border);
  color:#fff;
  border-radius:10px;
  padding:8px 12px;
  cursor:pointer;
  flex-shrink:0;
}
.btn-back:active{opacity:.75}

.notif-item{
  padding:12px 0;
  border-bottom:1px solid var(--border);
}
.notif-item:last-child{border-bottom:none}

.notif-status{
  font-size:13px;
  font-weight:900;
  margin-bottom:4px;
}
.notif-status.ok {color:#4cd88a}
.notif-status.err{color:#e86464}

.notif-detalhe{
  font-size:13px;
  color:#fff;
  margin-bottom:2px;
}

.notif-data{
  font-size:11px;
  color:#fff;
}