:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #f0f1f8;
  --text: #1c1e2b;
  --muted: #6b6f85;
  --border: #e2e4ef;
  --primary: #0b4fd6;
  --primary-ink: #ffffff;
  --primary-soft: #e6eeff;
  --logo-ink: #0f1b2d;
  --danger: #dc2626;
  --success: #16a34a;
  --warn: #d97706;
  --shadow: 0 1px 2px rgba(20, 20, 50, .06), 0 4px 16px rgba(20, 20, 50, .06);
  --radius: 12px;
  --note-yellow: #fff3a3; --note-pink: #ffd1e3; --note-blue: #cdeaff;
  --note-green: #d3f5c7; --note-orange: #ffdcb3; --note-purple: #e5d6ff;
  --note-ink: #2a2a22;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12131a; --surface: #1b1d27; --surface-2: #232633; --text: #e8e9f1; --muted: #9a9db2;
    --border: #2e3142; --primary: #4d9bff; --primary-ink: #0d1220; --primary-soft: #16294d; --logo-ink: #eef2fb;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.25); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #12131a; --surface: #1b1d27; --surface-2: #232633; --text: #e8e9f1; --muted: #9a9db2;
  --border: #2e3142; --primary: #4d9bff; --primary-ink: #0d1220; --primary-soft: #16294d; --logo-ink: #eef2fb;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.25); color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--primary); }
h1 { font-size: 1.6rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 .75rem; }
h3 { font-size: 1rem; margin: 0; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.boot { padding: 3rem; text-align: center; color: var(--muted); }
.row { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.hidden { display: none !important; }

/* --- formuláre a tlačidlá --- */
input, select, textarea {
  font: inherit; color: inherit; background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: .55rem .7rem; width: 100%;
}
textarea { min-height: 90px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
label { display: block; font-size: .85rem; font-weight: 600; margin: .6rem 0 .25rem; }
label.check { display: flex; gap: .5rem; align-items: center; font-weight: 500; }
label.check input { width: auto; }
.btn {
  font: inherit; font-weight: 600; cursor: pointer; border: 1px solid transparent; border-radius: 8px;
  padding: .5rem .9rem; background: var(--primary); color: var(--primary-ink);
  display: inline-flex; align-items: center; gap: .4rem; text-decoration: none; white-space: nowrap;
}
.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.sm { padding: .3rem .6rem; font-size: .85rem; }
.icon-btn { background: none; border: 0; cursor: pointer; color: inherit; font-size: 1.1rem; padding: .3rem .45rem; border-radius: 6px; }
.icon-btn:hover { background: var(--surface-2); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem; box-shadow: var(--shadow); }
.card + .card { margin-top: 1rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.stat { font-size: 2rem; font-weight: 700; }
.badge { display: inline-block; font-size: .75rem; font-weight: 700; padding: .1rem .5rem; border-radius: 99px; background: var(--surface-2); color: var(--muted); }
.badge.ok { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); }
.badge.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.badge.err { background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); }
.badge.pri { background: var(--primary-soft); color: var(--primary); }
.err-box { color: var(--danger); }

/* --- tabuľky --- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
tr:last-child td { border-bottom: 0; }

/* --- rozloženie aplikácie --- */
.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.side { background: var(--surface); border-right: 1px solid var(--border); padding: 1rem .75rem; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; }
.logo { padding: .25rem .5rem 1rem; display: flex; flex-direction: column; }
.wordmark { font-family: Montserrat, system-ui, sans-serif; font-weight: 800; letter-spacing: -.035em; line-height: 1; color: var(--logo-ink); white-space: nowrap; }
.wordmark b { font-weight: 800; background: linear-gradient(90deg, #0636c8 0%, #0b5ef0 55%, #1fc6ff 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tagline { font-family: Montserrat, system-ui, sans-serif; font-weight: 500; color: var(--logo-ink); letter-spacing: .06em; margin-top: .45em; white-space: nowrap; opacity: .9; }
.logo.big { align-items: center; padding-bottom: 1.25rem; }
.topbar .logo { padding: 0; }
.ic { flex-shrink: 0; vertical-align: -3px; }
.nav .ic { opacity: .85; }
.center { text-align: center; }
.nowrap { flex-wrap: nowrap; }
.grow { flex: 1; min-width: 0; }
.min0 { min-width: 0; }
.strong { font-weight: 600; }
.ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pending-ic { width: 64px; height: 64px; margin: 1rem auto .5rem; border-radius: 50%; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.title-row { display: flex; align-items: center; gap: .6rem; margin-bottom: 1rem; flex-wrap: wrap; }
.title-row h1 { margin: 0; display: flex; align-items: center; gap: .55rem; }
.title-row h1 .ic { color: var(--primary); }
.card h2 { display: flex; align-items: center; gap: .5rem; }
.card h2 .ic { color: var(--primary); }
.nav a { display: flex; align-items: center; gap: .6rem; padding: .55rem .7rem; border-radius: 8px; color: var(--text); text-decoration: none; font-weight: 500; }
.nav a:hover { background: var(--surface-2); }
.nav a.active { background: var(--primary-soft); color: var(--primary); font-weight: 700; }
.nav .count { margin-left: auto; background: var(--danger); color: #fff; font-size: .72rem; border-radius: 99px; padding: 0 .45rem; }
.side-foot { margin-top: auto; border-top: 1px solid var(--border); padding-top: .75rem; }
.me { display: flex; align-items: center; gap: .5rem; padding: 0 .4rem .5rem; }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-weight: 700; font-size: .8rem; flex-shrink: 0; }
.main { padding: 1.75rem; min-width: 0; max-width: 1200px; }
.topbar { display: none; }

@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: fixed; inset: 0 30% 0 0; z-index: 30; transform: translateX(-100%); transition: transform .2s; }
  .shell.nav-open .side { transform: none; box-shadow: var(--shadow); }
  .topbar { display: flex; align-items: center; gap: .5rem; padding: .6rem 1rem; background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20; }
  .main { padding: 1rem; }
}

/* --- prihlásenie --- */
.auth { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 1rem; }
.auth .card { width: 100%; max-width: 400px; }
.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--border); margin-bottom: 1rem; flex-wrap: wrap; }
.tabs button, .tabs a { background: none; border: 0; font: inherit; font-weight: 600; color: var(--muted); padding: .6rem .8rem; cursor: pointer; border-bottom: 2px solid transparent; text-decoration: none; }
.tabs .active { color: var(--primary); border-bottom-color: var(--primary); }

/* --- nástenka (sticky notes) --- */
.board { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); padding: .5rem; }
.note {
  background: var(--note); color: var(--note-ink); padding: 1.1rem 1rem 1rem; min-height: 190px;
  box-shadow: 0 10px 18px -8px rgba(0,0,0,.35), 0 2px 3px rgba(0,0,0,.08);
  transform: rotate(var(--r)); transition: transform .15s; position: relative; border-radius: 2px 2px 14px 2px;
  font-family: "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive;
}
.note:hover { transform: rotate(0) scale(1.03); z-index: 2; }
.note::before { content: ""; position: absolute; top: -10px; left: 50%; width: 70px; height: 22px; transform: translateX(-50%) rotate(-2deg); background: rgba(255,255,255,.55); box-shadow: 0 1px 2px rgba(0,0,0,.1); }
.note h3 { font-size: 1.1rem; margin-bottom: .4rem; }
.note p { white-space: pre-wrap; margin: 0 0 1.4rem; font-size: .95rem; }
.note .meta { position: absolute; bottom: .5rem; left: 1rem; right: .5rem; font: .72rem system-ui, sans-serif; opacity: .7; display: flex; align-items: center; }
.note .meta .icon-btn { font-size: .85rem; color: var(--note-ink); }
.note.pinned::before { display: none; }
.note .pin { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); filter: drop-shadow(0 2px 2px rgba(0,0,0,.3)); }
.colors { display: flex; gap: .5rem; }
.colors label { margin: 0; }
.colors input { display: none; }
.colors span { display: block; width: 28px; height: 28px; border-radius: 6px; background: var(--note); border: 2px solid transparent; cursor: pointer; }
.colors input:checked + span { border-color: var(--text); }

/* --- správy --- */
.chat { display: grid; grid-template-columns: 300px 1fr; grid-template-rows: minmax(0, 1fr); height: calc(100dvh - 3.5rem); min-height: 360px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.chat-list { border-right: 1px solid var(--border); overflow-y: auto; display: flex; flex-direction: column; }
.chat-actions { padding: .75rem; display: flex; gap: .4rem; flex-wrap: wrap; border-bottom: 1px solid var(--border); }
.conv { display: flex; gap: .6rem; align-items: center; padding: .7rem .8rem; cursor: pointer; border-bottom: 1px solid var(--border); }
.conv:hover { background: var(--surface-2); }
.conv.active { background: var(--primary-soft); }
.conv .name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conv .count { margin-left: auto; background: var(--danger); color: #fff; font-size: .72rem; border-radius: 99px; padding: 0 .45rem; }
.chat-main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.chat-list { min-height: 0; }
.chat-head { padding: .75rem 1rem; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: .6rem; }
.msgs { flex: 1; min-height: 0; overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: .35rem; }
.msg { max-width: 72%; padding: .5rem .75rem; border-radius: 14px; background: var(--surface-2); align-self: flex-start; white-space: pre-wrap; word-wrap: break-word; }
.msg.me { background: var(--primary); color: var(--primary-ink); align-self: flex-end; }
.msg .who { font-size: .72rem; font-weight: 700; opacity: .75; }
.msg .time { font-size: .68rem; opacity: .65; text-align: right; }
.chat-form { display: flex; gap: .5rem; padding: .75rem; border-top: 1px solid var(--border); }
.chat-form textarea { min-height: 42px; height: 42px; }
.empty { display: grid; place-items: center; height: 100%; color: var(--muted); padding: 2rem; text-align: center; }
.pick-list { max-height: 300px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; margin-top: .5rem; }
.pick-list label { margin: 0; padding: .45rem .7rem; border-bottom: 1px solid var(--border); font-weight: 500; cursor: pointer; }
.back-btn { display: none; }
@media (max-width: 820px) {
  .chat { grid-template-columns: 1fr; height: calc(100dvh - 6rem); }
  .chat .chat-main { display: none; }
  .chat.open .chat-list { display: none; }
  .chat.open .chat-main { display: flex; }
  .back-btn { display: inline-block; }
  .msg { max-width: 88%; }
}

/* --- modálne okno a notifikácie --- */
.modal-back { position: fixed; inset: 0; background: rgba(10, 10, 25, .5); display: grid; place-items: center; z-index: 50; padding: 1rem; }
.modal { background: var(--surface); border-radius: var(--radius); width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow); }
.modal header { display: flex; align-items: center; justify-content: space-between; padding: .9rem 1.1rem; border-bottom: 1px solid var(--border); }
.modal-body { padding: 1.1rem; }
.modal-body .actions { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1rem; }
#toasts { position: fixed; bottom: 1rem; right: 1rem; z-index: 60; display: flex; flex-direction: column; gap: .5rem; max-width: calc(100vw - 2rem); }
.toast { background: var(--text); color: var(--bg); padding: .65rem 1rem; border-radius: 8px; box-shadow: var(--shadow); font-weight: 500; }
.toast.err { background: var(--danger); color: #fff; }
.progress { height: 6px; background: var(--surface-2); border-radius: 99px; overflow: hidden; margin-top: .5rem; }
.progress div { height: 100%; background: var(--primary); width: 0; transition: width .2s; }
code.pw { font-size: 1.2rem; background: var(--surface-2); padding: .3rem .6rem; border-radius: 6px; user-select: all; }

/* --- rozvrh --- */
.week { display: grid; grid-template-columns: repeat(var(--days, 5), minmax(0, 1fr)); gap: .75rem; }
.day { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: .6rem; min-height: 160px; }
.day.today { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.day h3 { font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: .1rem .2rem .6rem; display: flex; align-items: center; }
.day.today h3 { color: var(--primary); }
.lesson { border-left: 4px solid var(--lc); background: color-mix(in srgb, var(--lc) 10%, var(--surface)); border-radius: 8px; padding: .5rem .6rem; margin-bottom: .5rem; position: relative; }
.lesson.now { box-shadow: 0 0 0 2px var(--lc); }
.lesson .time { font-size: .78rem; font-weight: 700; color: var(--lc); }
.lesson .subj { font-weight: 700; line-height: 1.25; margin: .1rem 0; }
.lesson .info { font-size: .78rem; color: var(--muted); display: flex; flex-wrap: wrap; gap: .1rem .6rem; }
.lesson .info span { display: inline-flex; align-items: center; gap: .25rem; }
.lesson .tools { position: absolute; top: .2rem; right: .2rem; display: none; }
.lesson:hover .tools { display: flex; }
.lesson .tools .icon-btn { padding: .2rem; }
.t-lecture { --lc: #4f46e5; } .t-seminar { --lc: #0e9f6e; } .t-lab { --lc: #d97706; } .t-other { --lc: #db2777; }
.legend { display: flex; gap: .9rem; flex-wrap: wrap; font-size: .8rem; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: .35rem; }
.legend i { width: 10px; height: 10px; border-radius: 3px; background: var(--lc); }
@media (max-width: 1000px) { .week { grid-template-columns: 1fr; } .day { min-height: 0; } .lesson .tools { display: flex; } }

/* --- dlaždice na úvodnej stránke --- */
.tile { display: flex; gap: .9rem; align-items: flex-start; text-decoration: none; color: inherit; transition: transform .12s; }
.tile:hover { transform: translateY(-2px); }
.tile-ic { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); flex-shrink: 0; }
.tile .stat { line-height: 1.15; }
.nowrap-cell { white-space: nowrap; }
.conv .dot { margin-left: auto; width: 10px; height: 10px; border-radius: 50%; background: var(--primary); flex-shrink: 0; }
.empty .ic { opacity: .35; margin-bottom: .5rem; }
.empty { display: flex; flex-direction: column; align-items: center; justify-content: center; }

/* --- Powered by --- */
.powered { font-size: .75rem; color: var(--muted); text-align: center; margin: 1rem 0 0; letter-spacing: .02em; }
.powered b { font-weight: 700; color: var(--text); }
.powered.left { text-align: left; padding-left: .4rem; margin-top: .75rem; }
.msgs .older { align-self: center; margin-bottom: .5rem; }
.card.center h2 { justify-content: center; }

/* --- spotreba a upozornenie na limity --- */
.quota-banner { display: flex; gap: .6rem; align-items: flex-start; margin: 1rem 1.75rem 0; padding: .75rem 1rem; border-radius: var(--radius);
  background: color-mix(in srgb, var(--warn) 14%, var(--surface)); border: 1px solid color-mix(in srgb, var(--warn) 45%, transparent); color: var(--text); }
.quota-banner .ic { color: var(--warn); margin-top: 2px; }
.quota-banner.crit { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.quota-banner.crit .ic { color: var(--danger); }
.quota-banner a { margin-left: .4rem; font-weight: 600; }
@media (max-width: 820px) { .quota-banner { margin: .75rem 1rem 0; } }
.meter { margin: .75rem 0; }
.meter .row { justify-content: space-between; font-size: .88rem; }
.meter .bar { height: 10px; background: var(--surface-2); border-radius: 99px; overflow: hidden; margin-top: .3rem; }
.meter .bar div { height: 100%; background: var(--success); border-radius: 99px; }
.meter.warn .bar div { background: var(--warn); }
.meter.crit .bar div { background: var(--danger); }
.links { display: flex; flex-direction: column; gap: .4rem; }
.links a { display: inline-flex; align-items: center; gap: .4rem; }
.chat-readonly { display: flex; align-items: center; gap: .5rem; padding: .85rem 1rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; }

/* --- výber súboru --- */
.file-pick { display: flex; align-items: center; gap: .75rem; margin: 0; font-weight: 400; cursor: pointer; flex-wrap: wrap;
  border: 1px dashed var(--border); border-radius: 10px; padding: .6rem; background: var(--surface-2); }
.file-pick:hover { border-color: var(--primary); }
.file-pick input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.file-pick:focus-within { outline: 2px solid var(--primary); outline-offset: 1px; }
.file-pick .btn { pointer-events: none; background: var(--surface); }
.file-pick .file-name { font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; flex: 1; }

/* --- Domov: prehľad + nástenka --- */
.home { display: grid; grid-template-columns: minmax(260px, 1fr) minmax(0, 2fr); gap: 1.5rem; align-items: start; }
.home-side { display: flex; flex-direction: column; gap: 1rem; }
.home-side h1 { margin: 0; }
.home-side .card + .card { margin-top: 0; }
.home-board .board { padding: .5rem 0 0; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.board-head { display: flex; align-items: center; gap: .5rem; margin-bottom: .75rem; }
.board-head h2 { margin: 0; display: flex; align-items: center; gap: .5rem; }
.board-head h2 .ic { color: var(--primary); }
@media (max-width: 1000px) { .home { grid-template-columns: 1fr; } }

/* --- avatary a fotky --- */
img.avatar.photo { object-fit: cover; border-radius: 50%; display: block; flex-shrink: 0; }
.avatar { flex-shrink: 0; }
.avatar.tone-0 { background: #e6f1fb; color: #0c447c; } .avatar.tone-1 { background: #fbeaf0; color: #72243e; }
.avatar.tone-2 { background: #e1f5ee; color: #085041; } .avatar.tone-3 { background: #faeeda; color: #633806; }
.avatar.tone-4 { background: #eeedfe; color: #3c3489; } .avatar.tone-5 { background: #faece7; color: #712b13; }
.photo-edit { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

/* --- online stav --- */
.av-wrap { position: relative; display: inline-block; flex-shrink: 0; line-height: 0; }
.av-wrap.big { display: block; width: 120px; margin: .5rem auto 1rem; }
.av-wrap.big .avatar { margin: 0; }
.online-dot { position: absolute; right: 0; bottom: 0; width: 11px; height: 11px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 2px var(--surface); }
.av-wrap.big .online-dot { width: 22px; height: 22px; right: 6px; bottom: 6px; box-shadow: 0 0 0 4px var(--surface); }
.online-dot.static { position: static; display: inline-block; width: 9px; height: 9px; box-shadow: none; vertical-align: 0; margin-right: .2rem; }
.online-count { font-size: .85rem; color: var(--muted); }
.online-label { color: #16a34a; font-weight: 600; font-size: .9rem; margin-top: .25rem; }

/* --- register: zoznam a detail --- */
.reg { display: grid; grid-template-columns: minmax(260px, 1fr) minmax(0, 1.3fr); gap: 1.25rem; align-items: start; }
.reg-list { max-height: calc(100vh - 15rem); overflow-y: auto; margin: 0 -.4rem; padding: 0 .4rem; }
.reg-item { display: flex; align-items: center; gap: .7rem; padding: .5rem .6rem; border-radius: 8px; cursor: pointer; width: 100%;
  background: none; border: 0; font: inherit; color: inherit; text-align: left; }
.reg-item:hover { background: var(--surface-2); }
.reg-item.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.reg-detail { position: sticky; top: 1.5rem; text-align: center; }
.reg-detail .avatar { margin: .5rem auto 1rem; }
.reg-detail h2 { justify-content: center; margin-bottom: .2rem; }
.reg-contacts { text-align: left; display: grid; gap: .55rem; margin: 1.25rem 0; }
.reg-contacts a, .reg-contacts span { display: flex; align-items: center; gap: .6rem; word-break: break-all; }
.reg-contacts .ic { color: var(--primary); }
@media (max-width: 900px) { .reg { grid-template-columns: 1fr; } .reg-detail { position: static; order: -1; } .reg-list { max-height: none; } }

/* --- materiály a burza --- */
.mat { display: flex; align-items: center; gap: .8rem; padding: .7rem 0; border-top: 1px solid var(--border); flex-wrap: wrap; }
.mat:first-child { border-top: 0; }
.mat-ic { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); flex-shrink: 0; }
.market { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.market .card + .card { margin-top: 0; }
.ad { display: flex; flex-direction: column; gap: .35rem; }
.ad h3 { font-size: 1.05rem; margin-top: .3rem; }
.ad p { margin: .2rem 0; }
.ad .price { font-size: 1.05rem; color: var(--primary); }
.ad-foot { display: flex; align-items: center; gap: .5rem; margin-top: auto; padding-top: .6rem; border-top: 1px solid var(--border); }
.tabs .count { background: var(--danger); color: #fff; font-size: .72rem; border-radius: 99px; padding: 0 .45rem; margin-left: .2rem; }
.stat-grid { display: grid; gap: .75rem; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin-bottom: 1rem; }
.stat-grid .card + .card { margin-top: 0; }
.missing { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .5rem; }
.missing span { background: var(--surface-2); border-radius: 99px; padding: .15rem .6rem; font-size: .82rem; }
details.assign { border-top: 1px solid var(--border); padding: .7rem 0; }
details.assign summary { cursor: pointer; display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; list-style: none; }
details.assign summary::-webkit-details-marker { display: none; }
.check.remember { margin-top: .75rem; font-weight: 500; }

/* --- rozvrh podľa dátumov (externé štúdium) --- */
.schedule-title { font-weight: 600; color: var(--primary); margin: -.4rem 0 .8rem; }
.dated-list .month { text-transform: capitalize; font-size: .9rem; color: var(--muted); margin: 1rem 0 .4rem; letter-spacing: .03em; }
.dated-list .month:first-child { margin-top: 0; }
.dated { display: grid; grid-template-columns: 120px 1fr; gap: .75rem; padding: .55rem .4rem; border-radius: 10px; }
.dated + .dated { border-top: 1px solid var(--border); }
.dated.today, .dated.next { background: var(--primary-soft); border-top-color: transparent; }
.dated.past { opacity: .6; }
.dated-day { display: flex; flex-direction: column; gap: .3rem; align-items: flex-start; padding-top: .3rem; }
.dated-items .lesson:last-child { margin-bottom: 0; }
@media (max-width: 600px) { .dated { grid-template-columns: 1fr; gap: .3rem; } .dated-day { flex-direction: row; align-items: center; } }

/* --- emotikony a potvrdenie o prečítaní --- */
.chat-form { position: relative; align-items: flex-end; }
.emoji-btn { color: var(--muted); align-self: center; }
.emoji-btn:hover { color: var(--primary); }
.emoji-panel { position: absolute; bottom: calc(100% + 6px); left: .75rem; z-index: 5; width: min(340px, calc(100% - 1.5rem));
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 2px; padding: .5rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); }
.emoji-panel .emoji { font-size: 1.35rem; line-height: 1; padding: .35rem 0; border: 0; background: none; border-radius: 8px; cursor: pointer; }
.emoji-panel .emoji:hover { background: var(--surface-2); }
.receipt { align-self: flex-end; font-size: .72rem; color: var(--muted); display: inline-flex; align-items: center; gap: .25rem; margin: -.1rem .2rem .2rem 0; }
.receipt.read { color: var(--primary); }
.dl-count { white-space: nowrap; display: inline-flex; align-items: center; gap: .15rem; }

/* --- Všetky práce: matica študentov a predmetov --- */
.matrix th, .matrix td { text-align: center; white-space: nowrap; }
.matrix th:first-child, .matrix td:first-child { text-align: left; }
.matrix .sticky-col { position: sticky; left: 0; background: var(--surface); z-index: 1; min-width: 200px; max-width: 260px; }
.mx-head { font-size: .8rem; text-transform: none; letter-spacing: 0; color: var(--text); white-space: normal; min-width: 110px; max-width: 160px; margin: 0 auto; }
.mx-sub { display: flex; align-items: center; justify-content: center; gap: .2rem; margin-top: .3rem; }
.mx-student { display: flex; align-items: center; gap: .5rem; min-width: 0; }
.mx-cell { padding: .3rem; }
.mx-ok { width: 30px; height: 30px; border-radius: 50%; border: 0; cursor: pointer; display: inline-grid; place-items: center;
  background: color-mix(in srgb, var(--success) 16%, transparent); color: var(--success); }
.mx-ok:hover { background: var(--success); color: #fff; }
.mx-ok.sent { box-shadow: 0 0 0 2px var(--success) inset; }
.mx-miss { color: var(--muted); opacity: .6; }

/* --- lektori a hodnotenie prác --- */
.role-select { width: auto; padding: .3rem .5rem; font-size: .85rem; }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: .25rem 1rem; margin: .25rem 0 .5rem; }
.mx-ok.graded { font-weight: 800; font-size: .8rem; }
.mx-ok.returned { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.missing-row td { opacity: .75; }
.clamp { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; max-width: 280px; }
.feedback { white-space: pre-wrap; background: var(--surface-2); border-radius: 10px; padding: .75rem 1rem; }
.link-btn { background: none; border: 0; padding: 0; color: var(--primary); cursor: pointer; font: inherit; display: inline-flex; align-items: center; gap: .25rem; margin-top: .3rem; }
.link-btn:hover { text-decoration: underline; }

/* --- log: zbalené relácie --- */
.log-session { cursor: pointer; background: var(--surface-2); }
.log-session:hover { background: var(--primary-soft); }
.log-session .chev { display: inline-flex; transition: transform .15s; color: var(--muted); vertical-align: -2px; }
.log-session.open .chev { transform: rotate(90deg); color: var(--primary); }
.log-child td { padding-top: .35rem; padding-bottom: .35rem; font-size: .88rem; }
.log-child td:first-child { padding-left: 1.6rem; }

.mx-ok.static { cursor: default; }
.mx-ok.static:hover { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); }
.me-row td { background: var(--primary-soft); }
.matrix .me-row .sticky-col { background: var(--primary-soft); }

/* --- Všetky práce: rovnako široké stĺpce, názvy na 2 riadky, počty a ikony v jednej línii --- */
.matrix thead th { vertical-align: bottom; }
.matrix th:not(:first-child), .matrix td:not(:first-child) { width: 150px; min-width: 150px; max-width: 150px; }
.mx-head { height: 2.7em; display: flex; align-items: flex-end; justify-content: center; max-width: none; min-width: 0; }
.mx-head span { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.35; }
.mx-sub { height: 30px; }
.mx-actions { display: inline-flex; gap: .1rem; }
.mx-actions.off { visibility: hidden; }

/* počet v strede stĺpca, ikony v samostatnom riadku pod ním (rovnaká výška vo všetkých stĺpcoch) */
.mx-sub { height: auto; margin-top: .35rem; }
.mx-actions { display: flex; justify-content: center; gap: .15rem; height: 28px; margin-top: .15rem; }
.mx-actions .icon-btn { padding: .2rem; }

/* Všetky práce: popísané tlačidlá ZIP a Odkaz v hlavičke predmetu */
.mx-actions { align-items: center; height: 32px; margin-top: .35rem; gap: .3rem; }
.mx-btn { display: inline-flex; align-items: center; gap: .25rem; font: inherit; font-size: .75rem; font-weight: 700; padding: .28rem .55rem;
  border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; position: relative; }
.mx-btn:hover { border-color: var(--primary); color: var(--primary); }
.mx-btn.pri { background: var(--primary-soft); border-color: transparent; color: var(--primary); }
.mx-btn.pri:hover { background: var(--primary); color: #fff; }
.mx-btn.linked::after { content: ''; position: absolute; top: -3px; right: -3px; width: 9px; height: 9px; border-radius: 50%; background: var(--success); border: 2px solid var(--surface); }
.mx-actions .muted { text-transform: none; letter-spacing: 0; font-weight: 400; }

/* --- zobrazenie hesla --- */
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 2.6rem; }
.pw-eye { position: absolute; right: .35rem; top: 50%; transform: translateY(-50%); border: 0; background: none; color: var(--muted);
  cursor: pointer; padding: .35rem; border-radius: 8px; display: grid; place-items: center; }
.pw-eye:hover, .pw-eye[aria-pressed="true"] { color: var(--primary); }
.pw-eye:focus-visible { outline: 2px solid var(--primary); }