:root {
  --bg: #0B0F17; --card: #141B27; --card2: #1B2433; --edge: #26324A;
  --txt: #F2F5FA; --sub: #9AA6B8; --dim: #5E6B80;
  --blue: #2F7BFF; --blue-l: #8DB6FF; --blue-d: #12306B;
  --green: #34D17A; --amber: #FFB020; --red: #FF5A5F; --plum: #B98CFF;
  --r: 12px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--txt); }
body { font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-tap-highlight-color: transparent; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--blue-l); }
.boot { display: grid; place-items: center; height: 100vh; font-weight: 800; font-size: 28px; letter-spacing: .5px; }
.boot span, .logo span { color: var(--blue); }

/* layout */
.top { position: sticky; top: 0; z-index: 5; background: rgba(11,15,23,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--edge); padding: calc(env(safe-area-inset-top) + 10px) 16px 10px; display: flex; align-items: center; gap: 10px; }
.logo { font-weight: 800; font-size: 20px; letter-spacing: .3px; margin-right: auto; }
.viewing { background: var(--card2); border: 1px solid var(--edge); border-radius: 999px; padding: 6px 10px; font-size: 13px; max-width: 52%; }
main { max-width: 760px; margin: 0 auto; padding: 14px 16px calc(96px + env(safe-area-inset-bottom)); }
nav.tabs { position: fixed; bottom: 0; left: 0; right: 0; z-index: 6; background: rgba(15,20,30,.97); border-top: 1px solid var(--edge);
  display: grid; grid-template-columns: repeat(5, 1fr); padding-bottom: env(safe-area-inset-bottom); }
nav.tabs a { text-decoration: none; color: var(--sub); text-align: center; padding: 9px 2px 8px; font-size: 11px; font-weight: 600; }
nav.tabs a .ic { display: block; font-size: 19px; line-height: 1.2; }
nav.tabs a.on { color: var(--txt); }
nav.tabs a.on .ic { color: var(--blue); }

h1 { font-size: 22px; margin: 4px 0 2px; }
h2 { font-size: 17px; margin: 22px 0 8px; display: flex; align-items: center; gap: 8px; }
h2::before { content: ""; width: 4px; height: 17px; background: var(--blue); border-radius: 2px; }
.sub { color: var(--sub); font-size: 13px; margin: 0 0 10px; }
.muted { color: var(--sub); }
.dim { color: var(--dim); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.right { margin-left: auto; }

/* cards */
.card { background: var(--card); border: 1px solid var(--edge); border-radius: var(--r); padding: 12px 14px; margin: 0 0 10px; }
.card.today { border-color: var(--blue); box-shadow: 0 0 0 1px var(--blue) inset; }
.card.flat { background: var(--card2); }
.dayhead { display: flex; align-items: baseline; gap: 8px; }
.dayhead b { font-size: 15px; }
.aula { border-top: 1px solid var(--edge); margin-top: 10px; padding-top: 10px; }
.aula:first-of-type { border-top: 0; margin-top: 6px; padding-top: 0; }
.aula-title { font-weight: 700; font-size: 16px; }
details { margin-top: 6px; }
summary { cursor: pointer; color: var(--blue-l); font-size: 13px; font-weight: 600; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::before { content: "▸ "; }
details[open] summary::before { content: "▾ "; }
.bloco { background: var(--card2); border-radius: 10px; padding: 9px 11px; margin-top: 8px; }
.bloco .bn { font-size: 11px; font-weight: 800; letter-spacing: .6px; color: var(--blue-l); text-transform: uppercase; }
.bloco .bf { font-size: 12px; color: var(--sub); }
.bloco p { margin: 4px 0 0; font-size: 13px; color: var(--sub); }

/* chips & pills */
.chip { display: inline-flex; align-items: center; gap: 4px; border-radius: 999px; padding: 2px 9px; font-size: 12px; font-weight: 700;
  background: var(--card2); border: 1px solid var(--edge); color: var(--sub); }
.chip.Cross { color: #fff; background: var(--blue); border-color: var(--blue); }
.chip.LPO { color: #0B0F17; background: var(--amber); border-color: var(--amber); }
.chip.Gym { color: #0B0F17; background: var(--plum); border-color: var(--plum); }
.chip.ok { color: #0B0F17; background: var(--green); border-color: var(--green); }
.mchip { display: inline-block; background: #0F1520; border: 1px solid var(--edge); border-radius: 8px; padding: 3px 8px; margin: 5px 5px 0 0; font-size: 12.5px; }
.mchip i { color: var(--sub); font-style: normal; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--dim); vertical-align: middle; }
.dot.green { background: var(--green); } .dot.amber { background: var(--amber); } .dot.red { background: var(--red); }

/* buttons */
.btn { border: 0; border-radius: 10px; padding: 10px 14px; font-weight: 700; background: var(--card2); color: var(--txt); cursor: pointer; border: 1px solid var(--edge); }
.btn.pri { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 6px 10px; font-size: 13px; border-radius: 8px; }
.btn.danger { color: var(--red); }
.btn:disabled { opacity: .5; }
.btn.block { width: 100%; }
.iconbtn { background: transparent; border: 0; color: var(--sub); font-size: 20px; padding: 4px 8px; cursor: pointer; }

/* forms */
label.f { display: block; font-size: 12px; font-weight: 700; color: var(--sub); margin: 10px 0 4px; letter-spacing: .3px; }
input, select, textarea { width: 100%; background: #0F1520; border: 1px solid var(--edge); border-radius: 10px; padding: 10px 11px; outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--blue); }
textarea { min-height: 70px; resize: vertical; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.item { background: var(--card2); border: 1px solid var(--edge); border-radius: 12px; padding: 10px 12px; margin-bottom: 10px; position: relative; }
.item .x { position: absolute; top: 4px; right: 4px; }
.hint { font-size: 12px; color: var(--blue-l); margin-top: 4px; min-height: 16px; }
.sem { display: flex; gap: 6px; }
.sem button { flex: 1; border-radius: 9px; border: 1px solid var(--edge); background: #0F1520; padding: 8px 4px; font-size: 12px; font-weight: 700; color: var(--sub); cursor: pointer; }
.sem button.on.green { background: var(--green); color: #0B0F17; border-color: var(--green); }
.sem button.on.amber { background: var(--amber); color: #0B0F17; border-color: var(--amber); }
.sem button.on.red { background: var(--red); color: #0B0F17; border-color: var(--red); }

/* stats */
.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 6px 0 4px; }
.tile { background: var(--card); border: 1px solid var(--edge); border-top: 3px solid var(--blue); border-radius: 10px; padding: 9px 10px; }
.tile .k { font-size: 10.5px; font-weight: 800; color: var(--blue-l); letter-spacing: .5px; text-transform: uppercase; }
.tile .v { font-size: 22px; font-weight: 800; margin-top: 2px; }
.tile .s { font-size: 11.5px; color: var(--sub); }
.mov { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; align-items: center; cursor: pointer; }
.mov .big { font-size: 20px; font-weight: 800; text-align: right; }
.mov .pr { font-size: 12px; color: var(--sub); text-align: right; }
.spark { grid-column: 1 / -1; height: 34px; }
.filters { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; margin-bottom: 8px; }
.filters button { white-space: nowrap; }
.filters .btn.on { background: var(--blue); border-color: var(--blue); color: #fff; }
table.t { width: 100%; border-collapse: collapse; font-size: 13px; }
table.t th { text-align: left; color: var(--blue-l); font-size: 11px; letter-spacing: .4px; padding: 6px 6px; border-bottom: 1px solid var(--edge); }
table.t td { padding: 7px 6px; border-bottom: 1px solid var(--edge); vertical-align: top; }
.chart { width: 100%; height: auto; display: block; }
.empty { text-align: center; color: var(--sub); padding: 28px 10px; }
.weeknav { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; }
.weeknav .lbl { flex: 1; text-align: center; font-weight: 700; }

/* modal & toast */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 20; display: flex; align-items: flex-end; justify-content: center; }
.sheet { background: var(--bg); border: 1px solid var(--edge); border-radius: 16px 16px 0 0; width: 100%; max-width: 760px; max-height: 92vh; overflow-y: auto; padding: 16px 16px calc(20px + env(safe-area-inset-bottom)); }
#toast { position: fixed; left: 50%; bottom: calc(84px + env(safe-area-inset-bottom)); transform: translateX(-50%); background: var(--txt); color: var(--bg);
  padding: 9px 14px; border-radius: 10px; font-weight: 700; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 30; max-width: 90vw; }
#toast.show { opacity: 1; }
#toast.err { background: var(--red); color: #fff; }

.auth { max-width: 380px; margin: 12vh auto 0; padding: 0 20px; }
.auth .logo { font-size: 38px; display: block; text-align: center; margin-bottom: 4px; }
.auth .tag { text-align: center; color: var(--sub); margin-bottom: 22px; }

@media (max-width: 420px) { .tiles { grid-template-columns: repeat(2, 1fr); } .grid3 { grid-template-columns: 1fr 1fr; } }