/* uni-timetable — GNOME/Adwaita-inspired styles, light + dark. */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent: #3584e4;
  --accent-hover: #1c71d8;
  --accent-soft: rgba(53, 132, 228, .12);

  --text: rgb(0 0 6 / 92%);
  --muted: rgb(0 0 6 / 58%);
  --border: rgb(0 0 6 / 12%);
  --bg: #fafafb;
  --bg-dim: #f2f1f0;
  --card: #ffffff;
  --danger: #c01c28;
  --danger-soft: rgba(192, 28, 40, .1);

  /* lesson kinds */
  --k-lecture: #3584e4;
  --k-seminar: #9141ac;
  --k-practice: #ed5b00;
  --k-lab: #2190a4;
  --k-pe: #3a944a;
  --k-default: #9a9996;
  --k-lecture-bg: rgba(53, 132, 228, .2);
  --k-seminar-bg: rgba(145, 65, 172, .2);
  --k-practice-bg: rgba(237, 91, 0, .2);
  --k-lab-bg: rgba(33, 144, 164, .2);
  --k-pe-bg: rgba(58, 148, 74, .2);
  --k-default-bg: rgba(154, 153, 150, .25);

  --hour-px: 56px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-1: 0 1px 2px rgb(0 0 6 / 8%), 0 0 0 1px var(--border);
  --shadow-2: 0 8px 24px rgb(0 0 6 / 18%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #3584e4;
    --accent-hover: #62a0ea;
    --accent-soft: rgba(53, 132, 228, .22);

    --text: rgb(255 255 255 / 94%);
    --muted: rgb(255 255 255 / 66%);
    --border: rgb(255 255 255 / 10%);
    --bg: #1e1e1e;
    --bg-dim: #242424;
    --card: #303030;
    --danger: #e01b24;
    --danger-soft: rgba(224, 27, 36, .16);

    --k-lecture: #62a0ea;
    --k-seminar: #c061cb;
    --k-practice: #ff7b34;
    --k-lab: #5bc8dd;
    --k-pe: #78e9a0;
    --k-default: #9a9996;
    --k-lecture-bg: rgba(98, 160, 234, .28);
    --k-seminar-bg: rgba(192, 97, 203, .28);
    --k-practice-bg: rgba(255, 123, 52, .28);
    --k-lab-bg: rgba(91, 200, 221, .28);
    --k-pe-bg: rgba(120, 233, 160, .25);
    --k-default-bg: rgba(154, 153, 150, .3);
    --shadow-1: 0 1px 2px rgb(0 0 0 / 36%), 0 0 0 1px var(--border);
    --shadow-2: 0 8px 24px rgb(0 0 0 / 55%);
  }
}

html { height: 100%; }

body {
  font-family: "Adwaita Sans", Inter, Cantarell, "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 15px; line-height: 1.5; color: var(--text); background: var(--bg);
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

/* ---- top bar ------------------------------------------------------------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-dim); border-bottom: 1px solid var(--border);
  padding: 10px 20px;
}
.brand { font-size: 17px; font-weight: 700; color: var(--text); text-decoration: none; display: flex; align-items: baseline; gap: 8px; }
.brand small { font-weight: 500; font-size: 12px; color: var(--muted); }
.topnav { display: flex; gap: 4px; align-items: center; }
.topnav a {
  padding: 6px 12px; border-radius: var(--radius-sm); color: var(--text);
  text-decoration: none; font-size: 14px; font-weight: 500;
}
.topnav a:hover { background: var(--accent-soft); }
.topnav a.active { background: var(--accent-soft); color: var(--accent); }
.topnav a.site-link { color: var(--accent); }

/* ---- public app layout --------------------------------------------------- */
.app {
  max-width: 1240px; margin: 0 auto; padding: 20px 20px 60px;
  display: flex; flex-direction: column; min-height: calc(100vh - 53px);
}
.timetable-area { flex: 1; }

/* - search dock ------------------------------------------------------------ */
/* Desktop: docked at the top. Narrow screens: pinned to the bottom. */
.search-dock { padding: 4px 0 16px; max-width: 620px; width: 100%; margin: 0 auto; position: relative; }
.search-box { position: relative; display: flex; align-items: center; }
.search-input {
  width: 100%; padding: 11px 42px 11px 16px; font: inherit; font-size: 15px;
  border: 1px solid var(--border); border-radius: 10px; background: var(--card);
  color: var(--text); box-shadow: var(--shadow-1);
}
.search-input::placeholder { color: var(--muted); }
.search-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search-input::-webkit-search-cancel-button { -webkit-appearance: none; }
.search-icon {
  position: absolute; right: 14px; font-size: 17px; color: var(--muted);
  pointer-events: none;
}
.search-pop {
  position: absolute; inset-inline: 0; top: calc(100% + 6px); z-index: 50;
  background: var(--card); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-2);
}
.search-pop:empty { display: none; }
.search-result {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  padding: 10px 16px; text-decoration: none; color: var(--text); border-bottom: 1px solid var(--border);
}
.search-result:last-child { border-bottom: none; }
.search-result:hover { background: var(--accent-soft); }
.sr-name { font-weight: 600; }
.sr-group { color: var(--muted); font-size: 13px; white-space: nowrap; }
.search-meta { padding: 6px 16px; color: var(--muted); border-bottom: 1px solid var(--border); }
.admin-search { max-width: 420px; margin: 12px 0 16px; gap: 8px; }
.admin-search .search-input { box-shadow: none; }

@media (max-width: 860px) {
  .app { padding: 16px 14px 150px; }
  .search-dock {
    position: fixed; inset-inline: 0; bottom: 0; top: auto; z-index: 100;
    max-width: none; margin: 0; padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0px));
    background: var(--bg-dim); border-top: 1px solid var(--border);
  }
  .search-pop { top: auto; bottom: calc(100% + 6px); margin-inline: 14px; }
}

/* - student header -------------------------------------------------------- */
.student-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 6px 0 18px; }
.student-header h1 { font-size: 24px; font-weight: 800; }
.sh-left { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.badge {
  background: var(--accent-soft); color: var(--accent); font-size: 13px; font-weight: 600;
  padding: 3px 12px; border-radius: 20px;
}
.badge-muted { background: var(--bg-dim); color: var(--muted); }

/* - view toggle (GNOME segmented pill) ------------------------------------- */
.view-toggle { display: inline-flex; background: var(--bg-dim); border: 1px solid var(--border); border-radius: 10px; padding: 3px; gap: 2px; }
.view-toggle .btn { border: none; background: transparent; padding: 6px 16px; border-radius: 8px; box-shadow: none; }
.view-toggle .btn:hover { background: transparent; color: var(--accent); }
.view-toggle .btn.active { background: var(--accent); color: #fff; }

/* ---- week time grid (desktop) --------------------------------------------- */
.week-cal { display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow-1); overflow: hidden; }
.wc-head { display: grid; grid-template-columns: 64px repeat(7, 1fr); border-bottom: 1px solid var(--border); background: var(--bg-dim); }
.wc-corner { border-right: 1px solid var(--border); }
.wc-dayname {
  padding: 10px 4px; text-align: center; font-size: 13px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em; color: var(--muted);
}
.wc-dayname.is-today {
  color: var(--accent);
}
.wc-dayname.is-today::after {
  content: "•"; display: inline-block; margin-left: 5px; color: var(--accent);
}
.wc-scroll { overflow-y: auto; padding-top: 8px; }
.wc-grid { display: grid; grid-template-columns: 64px repeat(7, 1fr); position: relative; }
.wc-hours {
  position: relative; grid-row: 1; grid-column: 1;
  border-right: 1px solid var(--border);
}
.wc-hour {
  position: absolute; right: 8px; transform: translateY(-6px);
  font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums;
}
.wc-col {
  position: relative; grid-row: 1;
  border-right: 1px solid var(--border);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent calc(var(--hour-px) - 1px),
    var(--border) calc(var(--hour-px) - 1px),
    var(--border) var(--hour-px)
  );
}
.wc-col:last-child { border-right: none; }
.wc-col.is-today { background-color: rgb(53 132 228 / 4%); }
@media (prefers-color-scheme: dark) { .wc-col.is-today { background-color: rgb(53 132 228 / 7%); } }

/* - lesson blocks (time grid) ----------------------------------------------- */
.lesson {
  position: absolute; overflow: hidden; display: flex; flex-direction: column; gap: 0;
  margin: 1px 3px; /* small padding around the block inside its time slot */
  padding: 3px 6px 3px 9px;
  border-radius: 8px;
  border-left: 3px solid var(--k-default);
  background: var(--k-default-bg);
  font-size: 12px; line-height: 1.28; cursor: default;
}
.lesson { min-height: 26px; }
.wc-col .lesson { transition: box-shadow .12s ease; }
.wc-col .lesson:hover { box-shadow: 0 0 0 2px var(--k-default); z-index: 5; }
.ls-time { font-size: 10.5px; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.ls-title { font-weight: 600; color: var(--text); overflow: hidden; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 4; }
.ls-room, .ls-teacher { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ls-parity, .ls-note { display: none; } /* revealed in the expanded card */

/* Expanded lesson card: hover on pointer devices, tap/Enter elsewhere.
   Height is inline (PosStyle), so auto needs !important. */
.lesson:hover, .lesson.expanded,
.lesson:focus-visible {
  height: auto !important;
  overflow: visible; z-index: 40;
  background: color-mix(in srgb, var(--k, var(--k-default)) 16%, var(--bg));
  box-shadow: 0 6px 20px rgb(0 0 0 / 20%);
}
.lesson:hover .ls-title, .lesson.expanded .ls-title, .lesson:focus-visible .ls-title {
  display: block; -webkit-line-clamp: unset;
}
.lesson:hover .ls-room, .lesson:hover .ls-teacher,
.lesson.expanded .ls-room, .lesson.expanded .ls-teacher,
.lesson:focus-visible .ls-room, .lesson:focus-visible .ls-teacher {
  white-space: normal; overflow: visible; text-overflow: unset;
}
.lesson:hover .ls-parity, .lesson:hover .ls-note,
.lesson.expanded .ls-parity, .lesson.expanded .ls-note,
.lesson:focus-visible .ls-parity, .lesson:focus-visible .ls-note {
  display: block; color: var(--muted);
}
.lesson { cursor: pointer; }

.lesson-lecture { --k: var(--k-lecture); border-left-color: var(--k); background: var(--k-lecture-bg); }
.lesson-seminar { --k: var(--k-seminar); border-left-color: var(--k); background: var(--k-seminar-bg); }
.lesson-practice { --k: var(--k-practice); border-left-color: var(--k); background: var(--k-practice-bg); }
.lesson-lab { --k: var(--k-lab); border-left-color: var(--k); background: var(--k-lab-bg); }
.lesson-pe { --k: var(--k-pe); border-left-color: var(--k); background: var(--k-pe-bg); }
.lesson:hover { box-shadow: 0 0 0 2px var(--k, var(--k-default)); }

/* Lesson entrance: slide + fade in from the left, staggered via --in-delay.
   JS adds .animating to #timetable; disabled for reduced-motion users. */
@media (prefers-reduced-motion: no-preference) {
  #timetable.animating .lesson {
    animation: lesson-in 320ms cubic-bezier(.22, .61, .36, 1) var(--in-delay, 0ms) both;
  }
}
@keyframes lesson-in {
  from { opacity: 0; transform: translateX(-22px); }
  to   { opacity: 1; transform: none; }
}

/* ---- narrow screens: day chips + single-column time grid ------------------- */
.day-mobile { display: none; }
.wc-corner { font-size: 12px; font-weight: 700; color: var(--muted); padding: 6px 8px 2px; text-transform: uppercase; }
.week-cal.single .wc-grid { grid-template-columns: 64px 1fr; }
@media (max-width: 860px) {
  .week-cal:not(.single) { display: none; }
  .day-mobile { display: flex; flex-direction: column; gap: 10px; }
  .week-cal.single .wc-dayname {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    font-size: 12px; padding: 8px 4px; letter-spacing: .02em;
  }
  .week-cal.single .wc-dayname.is-today::after { content: none; }
  .week-cal.single .wl-today { font-size: 10px; padding: 0 6px; }
  .parity-note { margin-top: -4px; }
}
.wl-today {
  font-size: 11px; font-weight: 700; text-transform: none; letter-spacing: 0;
  background: var(--accent); color: #fff; padding: 1px 8px; border-radius: 10px;
}
/* - day chips (narrow-screen day navigation) -------------------------------- */
.day-select { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0 4px; }
.btn-day { background: var(--card); }
.btn-day.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-day.is-today:not(.active) { border-color: var(--accent); color: var(--accent); }
.grid-empty {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 14px;
}
.kind-tag {
  font-size: 11px; font-weight: 600; color: var(--muted); background: var(--bg-dim);
  padding: 1px 8px; border-radius: 10px;
}

/* ---- shared UI ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  padding: 7px 14px; border-radius: var(--radius-sm); background: var(--card); color: var(--text);
  text-decoration: none; font-size: 14px; font-weight: 500; border: 1px solid var(--border);
  cursor: pointer; font: inherit; box-shadow: var(--shadow-1);
}
.btn:hover { background: var(--bg-dim); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: none; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: transparent; border-color: var(--border); color: var(--danger); box-shadow: none; }
.btn-danger:hover { background: var(--danger-soft); }
.btn-sm { padding: 3px 10px; font-size: 13px; }
.btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.flash {
  background: var(--k-pe-bg); color: var(--text);
  border: 1px solid var(--k-pe);
  padding: 9px 14px; border-radius: var(--radius-sm); font-size: 14px; margin: 14px 0;
}
.muted { color: var(--muted); }
.small { font-size: 12px; }
.empty { color: var(--muted); font-size: 14px; padding: 8px 0; }
.empty-state {
  text-align: center; color: var(--muted); padding: 80px 20px; font-size: 16px;
  border: 1px dashed var(--border); border-radius: var(--radius);
}

/* ---- admin --------------------------------------------------------------- */
.wrap { max-width: 1080px; margin: 0 auto; padding: 24px 20px 60px; }
.list-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 0 0 14px; }
.list-toolbar .admin-search { margin: 0; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 20px 0 6px; flex-wrap: wrap; }
.page-title { font-size: 21px; margin: 20px 0 4px; }
.panel { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; margin: 18px 0; }
.panel-title { font-size: 16px; margin-bottom: 10px; }
.not-found { max-width: 480px; margin: 60px auto; text-align: center; padding: 32px; }
.not-found p { margin: 10px 0 18px; color: var(--muted); }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin: 14px 0; }
.stat-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; text-decoration: none; color: var(--text); display: flex; flex-direction: column; gap: 4px;
}
.stat-card:hover { border-color: var(--accent); }
.stat-card strong { font-size: 26px; color: var(--accent); font-variant-numeric: tabular-nums; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 9px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.data-table th { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.data-table tr:hover td { background: var(--bg-dim); }
.data-table .col-actions { text-align: right; white-space: nowrap; width: 1%; }
.data-table .col-actions .btn { margin-left: 6px; }
.col-time-wide { white-space: nowrap; font-weight: 600; font-variant-numeric: tabular-nums; width: 110px; }
.badges-cell { display: flex; gap: 6px; flex-wrap: wrap; }

.lesson-line { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.lesson-line-title { font-weight: 600; }
.assign-line { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 3px; }
.assign-tag { background: var(--bg-dim); border-radius: 10px; padding: 1px 8px; font-size: 12px; }
.assign-group { color: var(--accent); background: var(--accent-soft); }
.assign-subgroup { color: var(--k-lab); background: var(--k-lab-bg); }
.assign-student { color: var(--k-seminar); background: var(--k-seminar-bg); }

/* - forms ------------------------------------------------------------------ */
.data-form { max-width: 720px; display: flex; flex-direction: column; gap: 14px; margin-top: 14px; }
.data-form label { display: flex; flex-direction: column; gap: 4px; font-size: 13.5px; font-weight: 600; color: var(--text); }
.data-form input, .data-form select {
  padding: 8px 10px; font: inherit; font-size: 14px; font-weight: 400;
  border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--card); color: var(--text);
}
.data-form input:focus, .data-form select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.form-actions { display: flex; gap: 10px; align-items: center; margin-top: 6px; }
.inline-add { display: flex; gap: 8px; margin-top: 12px; max-width: 340px; }
.inline-add input { flex: 1; padding: 7px 10px; font: inherit; font-size: 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--card); color: var(--text); }

/* - assignment editor ------------------------------------------------------ */
.assign-panel { max-width: none; }
.assign-blocks { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 4px; }
@media (max-width: 760px) { .assign-blocks { grid-template-columns: 1fr; } }
.assign-group-row { padding: 8px 0; border-bottom: 1px dashed var(--border); }
.assign-group-row:last-child { border-bottom: none; }
.assign-subs { display: flex; gap: 6px 18px; flex-wrap: wrap; padding-left: 24px; margin-top: 4px; }
.check { display: flex !important; flex-direction: row !important; align-items: center; gap: 8px; font-weight: 500 !important; font-size: 14px !important; cursor: pointer; }
.check input { accent-color: var(--accent); width: 16px; height: 16px; }
.check input[type="checkbox"] { width: auto; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; min-height: 30px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent-soft); color: var(--accent);
  border-radius: 20px; padding: 3px 6px 3px 12px; font-size: 13px; font-weight: 500;
}
.chip-x {
  border: none; background: transparent; color: var(--accent); cursor: pointer;
  font-size: 15px; line-height: 1; padding: 3px 6px; border-radius: 50%;
}
.chip-x:hover { background: var(--accent-soft); }

.add-list { list-style: none; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--card); margin-top: 6px; overflow: hidden; }
.add-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 7px 12px; border-bottom: 1px solid var(--border); }
.add-row:last-child { border-bottom: none; }
.add-name { font-size: 14px; }
.add-row.empty { justify-content: flex-start; }

/* ---- footer ---------------------------------------------------------------- */
.site-footer {
  text-align: center; color: var(--muted); font-size: 13px;
  padding: 24px 20px 32px;
}