UI-компоненти Легка

Gym — Class Roster

A high-energy gym class roster with live attendance check-in. A neon-accented header shows the class name, time, coach and a capacity bar, while a searchable member list pairs gradient avatars and tier badges with Check-in and No-show toggles. Toggling animates each row between present, no-show and waitlist-promoted states as present, expected, no-show and waitlist counters update in real time. Includes a pending-only filter, a check-in-all action and a walk-in add row.

Відкрити в Lab

html css vanilla-js

Цілі: JS HTML

Код

:root {
  --bg: #0d0f12;
  --surface: #15181d;
  --surface-2: #1d2127;
  --elevated: #23282f;
  --ink: #f4f6f8;
  --ink-2: #c2c8d0;
  --muted: #8b929c;
  --neon: #c6ff3a;
  --neon-d: #a6e016;
  --neon-50: rgba(198, 255, 58, 0.12);
  --orange: #ff6a2b;
  --orange-soft: rgba(255, 106, 43, 0.14);
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.16);
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --shadow-1: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 12px 30px -12px rgba(0, 0, 0, 0.7);
  --shadow-2: 0 20px 60px -20px rgba(0, 0, 0, 0.8);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(198, 255, 58, 0.06), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(255, 106, 43, 0.07), transparent 55%), var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: clamp(16px, 4vw, 48px);
  display: flex;
  justify-content: center;
}

.shell {
  width: 100%;
  max-width: 720px;
}

.card {
  background: linear-gradient(180deg, var(--surface), var(--bg));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(20px, 4vw, 30px);
  background: linear-gradient(160deg, rgba(198, 255, 58, 0.07), transparent 45%), var(--surface);
  border-bottom: 1px solid var(--line);
}

.hero__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--neon);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  color: var(--ink-2);
}

.pill--live {
  color: var(--ok);
  border-color: rgba(52, 211, 153, 0.4);
  background: rgba(52, 211, 153, 0.1);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 1.8s ease-out infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(52, 211, 153, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0);
  }
}

h1 {
  margin: 0;
  font-size: clamp(28px, 6vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.hero__meta {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  color: var(--muted);
  font-size: 14px;
}

.meta strong {
  color: var(--ink-2);
  font-weight: 700;
}

.meta--sep {
  position: relative;
  padding-left: 14px;
}

.meta--sep::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 4px;
  height: 4px;
  margin-top: -2px;
  border-radius: 50%;
  background: var(--line-2);
}

/* ---------- Capacity ---------- */
.capacity {
  margin-top: 20px;
}

.capacity__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
}

.capacity__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.capacity__count {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
}

.capacity__max {
  color: var(--muted);
  font-weight: 600;
}

.capacity__bar {
  height: 10px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  overflow: hidden;
}

.capacity__fill {
  display: block;
  height: 100%;
  width: 90%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--neon-d), var(--neon));
  transition: width 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.stat {
  background: var(--surface);
  padding: 16px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.stat__num {
  font-size: 26px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat__label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat--present .stat__num {
  color: var(--neon);
}
.stat--noshow .stat__num {
  color: var(--danger);
}
.stat--wait .stat__num {
  color: var(--warn);
}

/* ---------- Toolbar ---------- */
.toolbar {
  display: flex;
  gap: 10px;
  padding: 16px clamp(16px, 4vw, 24px);
  align-items: center;
  flex-wrap: wrap;
}

.search {
  position: relative;
  flex: 1 1 200px;
  min-width: 0;
}

.search__icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--muted);
  pointer-events: none;
}

#search {
  width: 100%;
  padding: 11px 12px 11px 38px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}

#search::placeholder {
  color: var(--muted);
}

#search:focus-visible {
  outline: none;
  border-color: var(--neon-d);
  box-shadow: 0 0 0 3px var(--neon-50);
}

.btn {
  font: inherit;
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--r-md);
  padding: 11px 16px;
  border: 1px solid var(--line-2);
  background: var(--elevated);
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  border-color: var(--line-2);
  background: #2a3038;
}

.btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--neon-50);
}

.btn--ghost {
  background: transparent;
  color: var(--ink-2);
  border-color: var(--line);
}

.btn--ghost[aria-pressed="true"] {
  background: var(--neon-50);
  border-color: rgba(198, 255, 58, 0.4);
  color: var(--neon);
}

.btn--neon {
  background: var(--neon);
  color: #0d0f12;
  border-color: transparent;
}

.btn--neon:hover {
  background: var(--neon-d);
}

.btn--orange {
  background: var(--orange);
  color: #1a0d05;
  border-color: transparent;
}

.btn--orange:hover {
  background: #ff7d47;
}

/* ---------- Roster ---------- */
.roster {
  list-style: none;
  margin: 0;
  padding: 0 clamp(16px, 4vw, 24px);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.18s ease,
    opacity 0.25s ease;
}

.row[hidden] {
  display: none;
}

.row.is-present {
  border-left-color: var(--neon);
  background: linear-gradient(90deg, var(--neon-50), transparent 50%), var(--surface-2);
}

.row.is-noshow {
  border-left-color: var(--danger);
  opacity: 0.62;
}

.row.is-promoted {
  border-left-color: var(--warn);
  background: linear-gradient(90deg, rgba(251, 191, 36, 0.1), transparent 50%), var(--surface-2);
}

.row.flash {
  animation: flash 0.45s ease;
}

@keyframes flash {
  0% {
    transform: scale(1);
  }
  35% {
    transform: scale(1.012);
    box-shadow: 0 0 0 1px var(--line-2);
  }
  100% {
    transform: scale(1);
  }
}

.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 15px;
  color: #0d0f12;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.who {
  min-width: 0;
}

.who__name {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.who__sub {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 3px;
}

.tier {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  color: var(--ink-2);
}

.tier--Elite {
  color: var(--neon);
  border-color: rgba(198, 255, 58, 0.4);
  background: var(--neon-50);
}
.tier--Plus {
  color: var(--orange);
  border-color: rgba(255, 106, 43, 0.4);
  background: var(--orange-soft);
}

.state-tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
}

.row.is-present .state-tag {
  color: var(--neon);
}
.row.is-noshow .state-tag {
  color: var(--danger);
}
.row.is-promoted .state-tag {
  color: var(--warn);
}

.actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.tog {
  font: inherit;
  font-weight: 700;
  font-size: 12px;
  border-radius: 999px;
  padding: 7px 12px;
  cursor: pointer;
  border: 1px solid var(--line-2);
  background: var(--elevated);
  color: var(--ink-2);
  transition: transform 0.12s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.tog:hover {
  background: #2a3038;
  color: var(--ink);
}

.tog:active {
  transform: scale(0.94);
}

.tog:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--neon-50);
}

.tog--present {
  background: var(--neon);
  color: #0d0f12;
  border-color: transparent;
}
.tog--present:hover {
  background: var(--neon-d);
  color: #0d0f12;
}

.tog--miss[data-active="true"] {
  background: rgba(248, 113, 113, 0.16);
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.45);
}

/* ---------- Walk-in ---------- */
.walkin {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 16px clamp(16px, 4vw, 24px) clamp(20px, 4vw, 26px);
  margin-top: 8px;
  border-top: 1px dashed var(--line-2);
}

.walkin__avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 24px;
  font-weight: 700;
  color: var(--muted);
  border: 2px dashed var(--line-2);
  flex-shrink: 0;
}

.walkin__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 11px 12px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}

.walkin__input::placeholder {
  color: var(--muted);
}

.walkin__input:focus-visible,
.walkin__select:focus-visible {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px var(--orange-soft);
}

.walkin__select {
  padding: 11px 12px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 28px);
  background: var(--elevated);
  color: var(--ink);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 11px 20px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-1);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
  z-index: 50;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast__accent {
  color: var(--neon);
  font-weight: 800;
}

/* ---------- Empty ---------- */
.empty {
  text-align: center;
  color: var(--muted);
  padding: 28px 12px;
  font-size: 14px;
}

/* ---------- Responsive ---------- */
@media (max-width: 520px) {
  body {
    padding: 12px;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .toolbar {
    gap: 8px;
  }

  .search {
    flex-basis: 100%;
    order: -1;
  }

  .row {
    grid-template-columns: auto 1fr;
    gap: 10px;
  }

  .actions {
    grid-column: 1 / -1;
    justify-content: flex-end;
    margin-top: 4px;
  }

  .walkin {
    flex-wrap: wrap;
  }

  .walkin__avatar {
    display: none;
  }

  .walkin__input {
    flex-basis: 100%;
  }

  .walkin__select {
    flex: 1;
  }
}

(function () {
  "use strict";

  var CAPACITY = 20;

  // Member states: "expected" | "present" | "noshow" | "promoted"
  var members = [
    { id: 1, name: "Diego Salcedo", tier: "Elite", state: "present" },
    { id: 2, name: "Priya Raman", tier: "Plus", state: "expected" },
    { id: 3, name: "Tomás Bianchi", tier: "Core", state: "present" },
    { id: 4, name: "Hannah Okafor", tier: "Elite", state: "expected" },
    { id: 5, name: "Wei Lin", tier: "Core", state: "noshow" },
    { id: 6, name: "Sofía Marín", tier: "Plus", state: "expected" },
    { id: 7, name: "Marcus Hale", tier: "Core", state: "present" },
    { id: 8, name: "Yuki Tanaka", tier: "Elite", state: "expected" },
    { id: 9, name: "Olivia Brandt", tier: "Day Pass", state: "expected" },
    { id: 10, name: "Kwame Asante", tier: "Plus", state: "promoted" },
    { id: 11, name: "Renata Cardoso", tier: "Core", state: "expected" },
    { id: 12, name: "Felix Norberg", tier: "Core", state: "present" },
  ];

  var TIER_COLORS = {
    Elite: ["#c6ff3a", "#a6e016"],
    Plus: ["#ff6a2b", "#ff8a5a"],
    Core: ["#5e9bff", "#7fb2ff"],
    "Day Pass": ["#8b929c", "#aeb4bd"],
  };

  var STATE_LABEL = {
    expected: "Expected",
    present: "Present",
    noshow: "No-show",
    promoted: "Waitlist · promoted",
  };

  var $ = function (sel) {
    return document.querySelector(sel);
  };

  var rosterEl = $("#roster");
  var searchEl = $("#search");
  var filterBtn = $("#filterToggle");
  var checkAllBtn = $("#checkAll");
  var toastEl = $("#toast");
  var nextId = 100;
  var pendingOnly = false;

  /* ---------- toast ---------- */
  var toastTimer;
  function toast(msg) {
    toastEl.innerHTML = msg;
    toastEl.classList.add("show");
    clearTimeout(toastTimer);
    toastTimer = setTimeout(function () {
      toastEl.classList.remove("show");
    }, 2400);
  }

  function initials(name) {
    return name
      .trim()
      .split(/\s+/)
      .slice(0, 2)
      .map(function (p) {
        return p.charAt(0).toUpperCase();
      })
      .join("");
  }

  /* ---------- render ---------- */
  function render() {
    rosterEl.innerHTML = "";
    var q = searchEl.value.trim().toLowerCase();
    var shown = 0;

    members.forEach(function (m) {
      var li = document.createElement("li");
      li.className = "row";
      li.dataset.id = String(m.id);
      applyStateClass(li, m.state);

      var matchesQ =
        !q || m.name.toLowerCase().indexOf(q) > -1 || m.tier.toLowerCase().indexOf(q) > -1;
      var matchesFilter = !pendingOnly || m.state === "expected";
      if (!matchesQ || !matchesFilter) {
        li.hidden = true;
      } else {
        shown++;
      }

      var colors = TIER_COLORS[m.tier] || TIER_COLORS["Day Pass"];

      var avatar = document.createElement("div");
      avatar.className = "avatar";
      avatar.style.background = "linear-gradient(135deg," + colors[0] + "," + colors[1] + ")";
      avatar.textContent = initials(m.name);
      avatar.setAttribute("aria-hidden", "true");

      var who = document.createElement("div");
      who.className = "who";
      var nm = document.createElement("div");
      nm.className = "who__name";
      nm.textContent = m.name;
      var sub = document.createElement("div");
      sub.className = "who__sub";
      var tier = document.createElement("span");
      tier.className = "tier tier--" + m.tier.replace(/\s+/g, "");
      tier.textContent = m.tier;
      var tag = document.createElement("span");
      tag.className = "state-tag";
      tag.textContent = STATE_LABEL[m.state];
      sub.appendChild(tier);
      sub.appendChild(tag);
      who.appendChild(nm);
      who.appendChild(sub);

      var actions = document.createElement("div");
      actions.className = "actions";

      var present = m.state === "present" || m.state === "promoted";
      var presentBtn = document.createElement("button");
      presentBtn.type = "button";
      presentBtn.className = "tog" + (present ? " tog--present" : "");
      presentBtn.textContent = present ? "Checked in" : "Check in";
      presentBtn.setAttribute("aria-pressed", present ? "true" : "false");
      presentBtn.addEventListener("click", function () {
        togglePresent(m.id);
      });

      var missBtn = document.createElement("button");
      missBtn.type = "button";
      missBtn.className = "tog tog--miss";
      missBtn.textContent = "No-show";
      missBtn.dataset.active = m.state === "noshow" ? "true" : "false";
      missBtn.setAttribute("aria-pressed", m.state === "noshow" ? "true" : "false");
      missBtn.addEventListener("click", function () {
        toggleNoShow(m.id);
      });

      actions.appendChild(presentBtn);
      actions.appendChild(missBtn);

      li.appendChild(avatar);
      li.appendChild(who);
      li.appendChild(actions);
      rosterEl.appendChild(li);
    });

    if (shown === 0) {
      var empty = document.createElement("li");
      empty.className = "empty";
      empty.textContent = pendingOnly
        ? "No pending members — everyone's accounted for."
        : "No members match your search.";
      rosterEl.appendChild(empty);
    }

    updateStats();
  }

  function applyStateClass(li, state) {
    li.classList.toggle("is-present", state === "present");
    li.classList.toggle("is-noshow", state === "noshow");
    li.classList.toggle("is-promoted", state === "promoted");
  }

  function find(id) {
    for (var i = 0; i < members.length; i++) {
      if (members[i].id === id) return members[i];
    }
    return null;
  }

  function flash(id) {
    var row = rosterEl.querySelector('.row[data-id="' + id + '"]');
    if (!row) return;
    row.classList.remove("flash");
    void row.offsetWidth; // reflow to restart animation
    row.classList.add("flash");
  }

  /* ---------- actions ---------- */
  function togglePresent(id) {
    var m = find(id);
    if (!m) return;
    if (m.state === "present" || m.state === "promoted") {
      m.state = "expected";
      toast(m.name + " set back to expected");
    } else {
      m.state = "present";
      toast('<span class="toast__accent">✓</span> ' + m.name + " checked in");
    }
    render();
    flash(id);
  }

  function toggleNoShow(id) {
    var m = find(id);
    if (!m) return;
    if (m.state === "noshow") {
      m.state = "expected";
      toast(m.name + " cleared");
    } else {
      m.state = "noshow";
      toast(m.name + " marked no-show");
    }
    render();
    flash(id);
  }

  /* ---------- stats ---------- */
  function updateStats() {
    var present = 0,
      expected = 0,
      noshow = 0,
      wait = 0;
    members.forEach(function (m) {
      if (m.state === "present") present++;
      else if (m.state === "promoted") {
        present++;
        wait++;
      } else if (m.state === "noshow") noshow++;
      else expected++;
    });

    $("#statPresent").textContent = present;
    $("#statExpected").textContent = expected;
    $("#statNoShow").textContent = noshow;
    $("#statWait").textContent = wait;

    var enrolled = members.length;
    $("#capCurrent").textContent = enrolled;
    var pct = Math.min(100, Math.round((enrolled / CAPACITY) * 100));
    $("#capFill").style.width = pct + "%";
    var bar = $("#capBar");
    bar.setAttribute("aria-valuenow", String(enrolled));
    bar.setAttribute("aria-valuemax", String(CAPACITY));
  }

  /* ---------- toolbar ---------- */
  searchEl.addEventListener("input", render);

  filterBtn.addEventListener("click", function () {
    pendingOnly = !pendingOnly;
    filterBtn.setAttribute("aria-pressed", pendingOnly ? "true" : "false");
    render();
  });

  checkAllBtn.addEventListener("click", function () {
    var changed = 0;
    members.forEach(function (m) {
      if (m.state === "expected" || m.state === "noshow") {
        m.state = "present";
        changed++;
      }
    });
    render();
    if (changed === 0) {
      toast("Everyone's already checked in");
    } else {
      toast('<span class="toast__accent">✓</span> Checked in ' + changed + " member" + (changed === 1 ? "" : "s"));
    }
  });

  /* ---------- walk-in ---------- */
  $("#walkinForm").addEventListener("submit", function (e) {
    e.preventDefault();
    var nameEl = $("#walkinName");
    var name = nameEl.value.trim();
    if (!name) {
      nameEl.focus();
      toast("Enter a name for the walk-in");
      return;
    }
    if (members.length >= CAPACITY) {
      toast("Class is at capacity (" + CAPACITY + ")");
      return;
    }
    var tier = $("#walkinTier").value;
    var id = nextId++;
    members.push({ id: id, name: name, tier: tier, state: "present" });
    nameEl.value = "";
    pendingOnly = false;
    filterBtn.setAttribute("aria-pressed", "false");
    searchEl.value = "";
    render();
    flash(id);
    toast('<span class="toast__accent">+</span> ' + name + " added and checked in");
  });

  render();
})();

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Class Roster — Attendance Check-in</title>
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap"
      rel="stylesheet"
    />
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <main class="shell">
      <section class="card" aria-labelledby="class-title">
        <header class="hero">
          <div class="hero__top">
            <span class="eyebrow">Live Class · Studio A</span>
            <span class="pill pill--live" aria-label="Class in progress">
              <span class="dot" aria-hidden="true"></span> In progress
            </span>
          </div>

          <h1 id="class-title">Sunrise HIIT 45</h1>

          <div class="hero__meta">
            <span class="meta"><strong>06:30</strong> AM · 45 min</span>
            <span class="meta meta--sep">Coach <strong>Mara Velez</strong></span>
            <span class="meta meta--sep">Studio A</span>
          </div>

          <div class="capacity" role="group" aria-label="Class capacity">
            <div class="capacity__head">
              <span class="capacity__label">Capacity</span>
              <span class="capacity__count">
                <span id="capCurrent">18</span><span class="capacity__max">/20</span>
              </span>
            </div>
            <div
              class="capacity__bar"
              role="progressbar"
              aria-valuemin="0"
              aria-valuemax="20"
              aria-valuenow="18"
              id="capBar"
            >
              <span class="capacity__fill" id="capFill"></span>
            </div>
          </div>
        </header>

        <div class="stats" aria-live="polite">
          <div class="stat stat--present">
            <span class="stat__num" id="statPresent">0</span>
            <span class="stat__label">Present</span>
          </div>
          <div class="stat stat--expected">
            <span class="stat__num" id="statExpected">0</span>
            <span class="stat__label">Expected</span>
          </div>
          <div class="stat stat--noshow">
            <span class="stat__num" id="statNoShow">0</span>
            <span class="stat__label">No-show</span>
          </div>
          <div class="stat stat--wait">
            <span class="stat__num" id="statWait">0</span>
            <span class="stat__label">Waitlist</span>
          </div>
        </div>

        <div class="toolbar">
          <div class="search">
            <svg class="search__icon" viewBox="0 0 24 24" aria-hidden="true">
              <path
                d="M21 21l-4.3-4.3M11 19a8 8 0 1 1 0-16 8 8 0 0 1 0 16z"
                fill="none"
                stroke="currentColor"
                stroke-width="2"
                stroke-linecap="round"
              />
            </svg>
            <input
              type="search"
              id="search"
              placeholder="Search members or tier…"
              aria-label="Search members"
              autocomplete="off"
            />
          </div>
          <button type="button" class="btn btn--ghost" id="filterToggle" aria-pressed="false">
            Pending only
          </button>
          <button type="button" class="btn btn--neon" id="checkAll">Check in all</button>
        </div>

        <ul class="roster" id="roster" aria-label="Member roster"></ul>

        <form class="walkin" id="walkinForm" autocomplete="off">
          <div class="walkin__avatar" aria-hidden="true">+</div>
          <input
            type="text"
            id="walkinName"
            class="walkin__input"
            placeholder="Add a walk-in member…"
            aria-label="Walk-in member name"
          />
          <select id="walkinTier" class="walkin__select" aria-label="Walk-in membership tier">
            <option value="Day Pass">Day Pass</option>
            <option value="Core">Core</option>
            <option value="Plus">Plus</option>
            <option value="Elite">Elite</option>
          </select>
          <button type="submit" class="btn btn--orange">Add walk-in</button>
        </form>
      </section>
    </main>

    <div class="toast" id="toast" role="status" aria-live="polite"></div>

    <script src="script.js"></script>
  </body>
</html>

Class Roster

A front-desk attendance panel for a live group class, built in the high-energy performance-gym look. The header leads with a bold class title, the start time, duration and coach, plus a neon capacity bar that reflects how full the session is. A four-up stat strip tracks Present, Expected, No-show and Waitlist counts that recalculate the moment any row changes.

Each member row carries a gradient avatar, name and a colour-coded membership tier (Day Pass, Core, Plus, Elite). Two pill toggles drive the row state: Check in flips a member to present and paints the row with a neon left rail, while No-show dims and flags them. Waitlist-promoted members get an amber accent. Every toggle triggers a quick flash micro-interaction and a toast confirmation.

A search box filters by name or tier, a Pending only toggle hides everyone already accounted for, Check in all sweeps the remaining members in one tap, and the walk-in row appends a new member already checked in — respecting the class capacity limit. Everything runs on vanilla JS with no dependencies.

Illustrative UI only — names, coaches and members are fictional.