/* Темна тема з яскравими акцентами — свідомо своя, а не з теми Telegram:
   три відмітки читаються як три кільця активності, і вони мають бути
   однакового кольору на будь-якому пристрої. */
:root {
  color-scheme: dark;          /* щоб рідні календар, годинник і списки були темні */
  --bg: #000000;
  --card: #1c1c1e;
  --card-2: #2c2c2e;
  --text: #ffffff;
  --muted: #98989f;
  --hair: rgba(255, 255, 255, .12);

  /* кольори трьох кілець */
  --c1: #fa114f;   /* зроблено  */
  --c2: #a4f22b;   /* здано     */
  --c3: #1ad5e0;   /* захищено  */

  --red: #ff453a;
  --orange: #ff9f0a;
  --yellow: #ffd60a;
  --green: #32d74b;
  --blue: #0a84ff;

  --r: 18px;
  --pad: 16px;
  --tabbar-h: calc(56px + env(safe-area-inset-bottom, 0px));
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

/* Обов'язково: атрибут hidden має перемагати будь-який display у стилях нижче,
   інакше прихований шар лишається поверх екрана й перехоплює всі натискання. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.35 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}

button, input, select { font-family: inherit; color: inherit; }

.loader { position: fixed; inset: 0; display: grid; place-items: center; background: var(--bg); z-index: 90; }
.spinner {
  width: 32px; height: 32px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,.14); border-top-color: var(--c2);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ------------------------------------------------------------- шапка */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 12px;
  padding: calc(10px + env(safe-area-inset-top, 0px)) var(--pad) 10px;
  background: linear-gradient(var(--bg) 72%, rgba(0,0,0,0));
}
.topbar-sub { font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; }
.topbar-title { margin: 1px 0 0; font-size: 32px; font-weight: 800; letter-spacing: -.6px; }

.add-btn {
  flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%;
  border: none; background: var(--card-2); color: var(--text);
  font-size: 24px; font-weight: 300; line-height: 32px; cursor: pointer;
  transition: transform .12s ease, background .12s ease;
}
.add-btn:active { transform: scale(.9); background: var(--card); }
.add-btn[hidden] { display: none; }

main { padding: 4px var(--pad) calc(var(--tabbar-h) + 24px); }

/* ------------------------------------------------------------- картки */
.card { background: var(--card); border-radius: var(--r); padding: var(--pad); margin-bottom: 12px; }
.card-title { font-size: 13px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; margin-bottom: 12px; }

.hero { display: flex; align-items: center; gap: 18px; }
.legend { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 11px; }
.legend-row { display: flex; align-items: baseline; gap: 8px; }
.legend-dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; align-self: center; }
.legend-name { font-size: 13px; color: var(--muted); flex: 1; }
.legend-val { font-size: 17px; font-weight: 700; font-variant-numeric: tabular-nums; }

.rings { flex: 0 0 auto; }
.ring-bg { fill: none; opacity: .18; }
.ring-fg { fill: none; stroke-linecap: round; transform: rotate(-90deg); transform-origin: 50% 50%;
           transition: stroke-dashoffset .6s cubic-bezier(.25,.8,.3,1); }

.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat { background: var(--card); border-radius: 16px; padding: 13px 12px; }
.stat-num { font-size: 26px; font-weight: 800; letter-spacing: -.5px; font-variant-numeric: tabular-nums; }
.stat-label { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* -------------------------------------------------------------- чіпи */
/* переносимо в кілька рядків, а не ховаємо частину за краєм екрана */
.chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 2px 0 10px; }
.chip {
  flex: 0 0 auto; padding: 8px 14px; border-radius: 999px; border: none;
  background: var(--card); color: var(--muted); font-size: 14px; font-weight: 600;
  cursor: pointer; transition: transform .1s ease;
}
.chip:active { transform: scale(.94); }
.chip.is-active { background: var(--text); color: #000; }
.chip .n { opacity: .55; margin-left: 5px; font-variant-numeric: tabular-nums; }

/* ----------------------------------------------------------- завдання */
.group-title { font-size: 13px; font-weight: 700; color: var(--muted); text-transform: uppercase;
               letter-spacing: .6px; margin: 18px 2px 9px; }
.group-title:first-child { margin-top: 4px; }

.task { background: var(--card); border-radius: var(--r); padding: 14px var(--pad); margin-bottom: 10px; }
.task.is-closed .task-title { color: var(--muted); text-decoration: line-through; }
.task-head { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; }
.task-text { flex: 1; min-width: 0; }
.task-title { font-size: 17px; font-weight: 600; letter-spacing: -.2px; word-break: break-word; }
.task-sub { font-size: 13px; color: var(--muted); margin-top: 3px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.dl { font-weight: 600; }
.dl.red { color: var(--red); } .dl.orange { color: var(--orange); }
.dl.yellow { color: var(--yellow); } .dl.green { color: var(--green); }
.dl.grey { color: var(--muted); }
.task-ring { flex: 0 0 auto; }

.marks { display: flex; gap: 7px; margin-top: 12px; }
.mark {
  flex: 1; padding: 9px 2px; border-radius: 12px; border: 1.5px solid var(--hair);
  background: transparent; color: var(--muted); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: transform .1s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.mark:active { transform: scale(.93); }
.mark.on { color: #000; border-color: transparent; }
.mark.on[data-flag="done"] { background: var(--c1); color: #fff; }
.mark.on[data-flag="submitted"] { background: var(--c2); }
.mark.on[data-flag="defended"] { background: var(--c3); }

/* ----------------------------------------------------------- предмети */
.subject { display: flex; align-items: center; gap: 14px; background: var(--card);
           border-radius: var(--r); padding: 13px var(--pad); margin-bottom: 10px; cursor: pointer; }
.subject-text { flex: 1; min-width: 0; }
.subject-name { font-size: 17px; font-weight: 600; letter-spacing: -.2px; word-break: break-word; }
.subject-sub { font-size: 13px; color: var(--muted); margin-top: 2px; }
.chev { color: var(--muted); font-size: 22px; line-height: 1; opacity: .6; }

/* -------------------------------------------------------- налаштування */
.rows { background: var(--card); border-radius: var(--r); overflow: hidden; margin-bottom: 12px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px;
       padding: 13px var(--pad); border-bottom: 1px solid var(--hair); }
.row:last-child { border-bottom: none; }
.row-label { font-size: 16px; }
.row-label small { display: block; font-size: 13px; color: var(--muted); margin-top: 2px; }

.switch { position: relative; width: 51px; height: 31px; flex: 0 0 auto; appearance: none;
          background: var(--card-2); border-radius: 999px; cursor: pointer; transition: background .2s; }
.switch::after { content: ""; position: absolute; top: 2px; left: 2px; width: 27px; height: 27px;
                 border-radius: 50%; background: #fff; transition: transform .2s cubic-bezier(.3,1.4,.5,1); }
.switch:checked { background: var(--green); }
.switch:checked::after { transform: translateX(20px); }

select, input[type="text"], input[type="date"], input[type="time"] {
  background: var(--card-2); border: 1.5px solid transparent; border-radius: 12px;
  padding: 11px 12px; font-size: 16px; outline: none; appearance: none; width: 100%;
}
select {
  padding-right: 34px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%2398989f' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; background-size: 12px;
}
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator { filter: invert(1); opacity: .55; }
.row select { width: auto; min-width: 118px; padding: 8px 11px; font-size: 15px; }
input:focus, select:focus { border-color: var(--blue); }
input::placeholder { color: #6b6b70; }

/* ------------------------------------------------------------ шторка */
.sheet-backdrop { position: fixed; inset: 0; z-index: 60; background: rgba(0,0,0,.6);
                  display: flex; align-items: flex-end; animation: fade .2s ease; }
@keyframes fade { from { opacity: 0; } }
.sheet {
  width: 100%; max-height: 92vh; overflow-y: auto;
  background: #1c1c1e; border-radius: 22px 22px 0 0;
  padding: 8px var(--pad) calc(20px + env(safe-area-inset-bottom, 0px));
  animation: rise .26s cubic-bezier(.2,.9,.3,1);
}
@keyframes rise { from { transform: translateY(101%); } }
.grabber { width: 38px; height: 5px; border-radius: 3px; background: #48484a; margin: 0 auto 16px; }
.sheet h2 { font-size: 22px; font-weight: 800; letter-spacing: -.4px; margin: 0 0 18px; }
.field { margin-bottom: 16px; }
.field > label { display: block; font-size: 13px; font-weight: 600; color: var(--muted);
                 text-transform: uppercase; letter-spacing: .5px; margin-bottom: 7px; }
.date-row { display: flex; gap: 8px; }
.date-row input[type="date"] { flex: 2; } .date-row input[type="time"] { flex: 1; }

.btn { width: 100%; padding: 14px; border: none; border-radius: 14px; font-size: 17px;
       font-weight: 700; cursor: pointer; transition: transform .1s ease, opacity .15s ease; }
.btn:active { transform: scale(.98); }
.btn[disabled] { opacity: .5; }
.btn-main { background: var(--c2); color: #000; }
.btn-plain { background: var(--card-2); color: var(--text); margin-top: 9px; }
.btn-danger { background: transparent; color: var(--red); margin-top: 4px; font-weight: 600; }
.err { color: var(--red); font-size: 14px; margin: -6px 0 12px; }

/* ------------------------------------------------------------- таббар */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; display: flex;
  background: rgba(20,20,22,.94); backdrop-filter: blur(18px);
  border-top: .5px solid var(--hair); padding-bottom: env(safe-area-inset-bottom, 0px);
}
.tab { flex: 1; border: none; background: none; color: var(--muted); font-size: 10.5px; font-weight: 600;
       padding: 7px 2px 6px; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 3px; }
.tab-ico { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 1.9;
           stroke-linecap: round; stroke-linejoin: round; }
.tab.is-active { color: var(--c2); }

/* ---------------------------------------------------------------- інше */
.empty { text-align: center; color: var(--muted); padding: 54px 24px; }
.empty .ico { font-size: 44px; margin-bottom: 12px; }
.empty b { display: block; color: var(--text); font-size: 18px; margin-bottom: 6px; }

.toast { position: fixed; left: 50%; transform: translateX(-50%);
         bottom: calc(var(--tabbar-h) + 16px); z-index: 80;
         background: #3a3a3c; color: #fff; padding: 11px 17px; border-radius: 14px;
         font-size: 14px; font-weight: 500; max-width: 86vw; text-align: center;
         box-shadow: 0 8px 24px rgba(0,0,0,.5); animation: fade .15s ease; }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

.task.leaving { opacity: 0; transform: scale(.97); transition: opacity .3s ease, transform .3s ease; }