Form — Repeatable field rows (add/remove)

:root {
  --brand: #5b5bf0;
  --brand-d: #4646d6;
  --brand-700: #3a3ab8;
  --brand-50: #eef0ff;
  --accent: #00b4a6;
  --accent-soft: #d8f5f2;
  --ink: #101322;
  --ink-2: #3a4060;
  --muted: #6c7393;
  --bg: #f6f7fb;
  --white: #ffffff;
  --surface: #ffffff;
  --line: rgba(16, 19, 34, 0.1);
  --line-2: rgba(16, 19, 34, 0.16);
  --ok: #2f9e6f;
  --warn: #d98a2b;
  --danger: #d4503e;
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --sh-1: 0 1px 2px rgba(16, 19, 34, 0.08);
  --sh-2: 0 8px 24px rgba(16, 19, 34, 0.08);
}

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

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

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

.page {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: clamp(1rem, 3vw, 3rem) 1rem;
  min-height: 100vh;
}

/* ── Card shell ─────────────────────────────── */
.card {
  width: 100%;
  max-width: 720px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-2);
  padding: clamp(1.25rem, 3vw, 2rem);
  position: relative;
}

.card__head {
  margin-bottom: 1.5rem;
}

.card__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-d);
  background: var(--brand-50);
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  margin-bottom: 0.85rem;
}

.card__title {
  font-size: clamp(1.4rem, 3.5vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.card__sub {
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 46ch;
}
.card__sub strong {
  color: var(--ink-2);
  font-weight: 600;
}

/* ── Rows fieldset ─────────────────────────── */
.rows {
  border: 0;
}

.rows__legend {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  width: 100%;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.85rem;
  padding: 0;
}

.rows__count {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--brand-d);
  background: var(--brand-50);
  border-radius: 999px;
  padding: 0.18rem 0.6rem;
}

.rows__list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* ── Single row ────────────────────────────── */
.row {
  display: grid;
  grid-template-columns: 28px 1fr 40px;
  align-items: start;
  gap: 0.65rem;
  padding: 0.9rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  /* height animation */
  overflow: hidden;
  transition:
    opacity 0.28s ease,
    transform 0.28s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.row:hover {
  border-color: var(--line-2);
}

.row:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-50);
}

/* enter / leave animation states (toggled in JS) */
.row.is-entering {
  opacity: 0;
  transform: translateY(-6px);
}
.row.is-leaving {
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
}

.row__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  margin-top: 1.55rem;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--line-2);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.row__grid {
  display: grid;
  grid-template-columns: 1.2fr 1.4fr 0.9fr;
  gap: 0.65rem;
  min-width: 0;
}

.row__remove {
  appearance: none;
  -webkit-appearance: none;
  margin-top: 1.4rem;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--white);
  color: var(--muted);
  cursor: pointer;
  transition:
    background 0.16s ease,
    color 0.16s ease,
    border-color 0.16s ease,
    transform 0.1s ease;
}

.row__remove:hover {
  color: var(--danger);
  border-color: var(--danger);
  background: #fdecea;
}
.row__remove:active {
  transform: scale(0.94);
}
.row__remove:focus-visible {
  outline: none;
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(212, 80, 62, 0.22);
}
.row__remove:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.row__remove:disabled:hover {
  color: var(--muted);
  border-color: var(--line);
  background: var(--white);
}

/* ── Field ─────────────────────────────────── */
.field {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.field__label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 0.3rem;
}

.req {
  color: var(--danger);
  font-weight: 700;
}

.field__input {
  width: 100%;
  font: inherit;
  font-size: 0.9rem;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  padding: 0.55rem 0.7rem;
  transition:
    border-color 0.16s ease,
    box-shadow 0.16s ease,
    background 0.16s ease;
}

.field__input::placeholder {
  color: #aab0c8;
}

.field__input:hover {
  border-color: rgba(16, 19, 34, 0.28);
}

.field__input:focus-visible,
.field__input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-50);
}

.field__input:disabled {
  background: var(--bg);
  color: var(--muted);
  cursor: not-allowed;
}

/* select chevron */
.field--role {
  min-width: 0;
}
.select-wrap {
  position: relative;
}
.field__select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 1.9rem;
  cursor: pointer;
}
.select-wrap__chev {
  position: absolute;
  right: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.field__help {
  font-size: 0.74rem;
  color: var(--muted);
  margin-top: 0.3rem;
  min-height: 1em;
}

/* error state */
.field.is-error .field__input {
  border-color: var(--danger);
  background: #fdf3f1;
}
.field.is-error .field__input:focus-visible,
.field.is-error .field__input:focus {
  box-shadow: 0 0 0 3px rgba(212, 80, 62, 0.18);
}
.field.is-error .field__help {
  color: var(--danger);
  font-weight: 600;
}

/* success state */
.field.is-ok .field__input {
  border-color: var(--ok);
}
.field.is-ok .field__help {
  color: var(--ok);
}

/* ── Empty state ───────────────────────────── */
.rows__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
  padding: 1.75rem 1rem;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-md);
  color: var(--muted);
  background: var(--bg);
}
.rows__empty svg {
  color: var(--brand);
}
.rows__empty p {
  font-size: 0.88rem;
  max-width: 30ch;
}

/* ── Add button ────────────────────────────── */
.btn-add {
  appearance: none;
  -webkit-appearance: none;
  margin-top: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand-d);
  background: var(--white);
  border: 1px dashed var(--brand);
  border-radius: var(--r-sm);
  padding: 0.6rem 0.95rem;
  cursor: pointer;
  transition:
    background 0.16s ease,
    border-color 0.16s ease,
    transform 0.1s ease;
}
.btn-add:hover {
  background: var(--brand-50);
}
.btn-add:active {
  transform: scale(0.98);
}
.btn-add:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--brand-50);
  border-style: solid;
}
.btn-add:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn-add:disabled:hover {
  background: var(--white);
}

/* ── Footer ────────────────────────────────── */
.card__foot {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.form-status {
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.85rem;
  min-height: 1.1em;
}
.form-status.is-error {
  color: var(--danger);
}
.form-status.is-ok {
  color: var(--ok);
}

.card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.seat-meter {
  font-size: 0.82rem;
  color: var(--muted);
}
.seat-meter strong {
  color: var(--ink);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.btn-submit {
  appearance: none;
  -webkit-appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--white);
  background: var(--brand);
  border: 0;
  border-radius: var(--r-sm);
  padding: 0.7rem 1.25rem;
  cursor: pointer;
  box-shadow: var(--sh-1);
  transition:
    background 0.16s ease,
    transform 0.1s ease,
    box-shadow 0.16s ease;
}
.btn-submit:hover {
  background: var(--brand-d);
}
.btn-submit:active {
  transform: translateY(1px);
}
.btn-submit:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--brand-50);
}
.btn-submit:disabled {
  background: var(--muted);
  cursor: not-allowed;
  box-shadow: none;
}

/* ── Success state ─────────────────────────── */
.success {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  border-radius: var(--r-md);
  flex-wrap: wrap;
}
.success__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  flex-shrink: 0;
}
.success__title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
}
.success__text {
  font-size: 0.85rem;
  color: var(--ink-2);
}
.success div {
  min-width: 0;
}
.btn-reset {
  appearance: none;
  -webkit-appearance: none;
  margin-left: auto;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-d);
  background: var(--white);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  padding: 0.55rem 0.95rem;
  cursor: pointer;
  transition: background 0.16s ease;
}
.btn-reset:hover {
  background: var(--brand-50);
}
.btn-reset:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--brand-50);
}

/* ── Toast ─────────────────────────────────── */
.toast-region {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 50;
  pointer-events: none;
  width: max-content;
  max-width: calc(100vw - 2rem);
}
.toast {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  background: var(--ink);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.65rem 1rem;
  border-radius: var(--r-sm);
  box-shadow: var(--sh-2);
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}
.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.toast svg {
  flex-shrink: 0;
}
.toast--ok svg {
  color: #6ee0c4;
}
.toast--warn svg {
  color: #ffcf8a;
}

/* ── Responsive ────────────────────────────── */
@media (max-width: 640px) {
  .row__grid {
    grid-template-columns: 1fr 1fr;
  }
  .field--role {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .card {
    border-radius: var(--r-md);
    padding: 1.1rem;
  }
  .row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    position: relative;
    padding-top: 2.4rem;
  }
  .row__grid {
    grid-template-columns: 1fr;
  }
  .field--role {
    grid-column: auto;
  }
  .row__index {
    position: absolute;
    top: 0.7rem;
    left: 0.9rem;
    margin-top: 0;
  }
  .row__remove {
    position: absolute;
    top: 0.6rem;
    right: 0.7rem;
    margin-top: 0;
    width: 34px;
    height: 34px;
  }
  .card__actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }
  .btn-submit {
    justify-content: center;
  }
  .seat-meter {
    text-align: center;
  }
  .toast-region {
    bottom: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

(function () {
  "use strict";

  var MAX_ROWS = 10;
  var ROLE_LABELS = {
    viewer: "Viewer",
    editor: "Editor",
    admin: "Admin",
    owner: "Owner",
  };

  var form = document.getElementById("teamForm");
  var list = document.getElementById("rowsList");
  var tmpl = document.getElementById("rowTemplate");
  var emptyState = document.getElementById("rowsEmpty");
  var addBtn = document.getElementById("addRow");
  var countEl = document.getElementById("rowCount");
  var seatEl = document.getElementById("seatTotal");
  var statusEl = document.getElementById("formStatus");
  var submitBtn = document.getElementById("submitBtn");
  var successState = document.getElementById("successState");
  var successText = document.getElementById("successText");
  var resetBtn = document.getElementById("resetBtn");
  var toastRegion = document.getElementById("toastRegion");

  var uid = 0;
  var prefersReduced =
    window.matchMedia &&
    window.matchMedia("(prefers-reduced-motion: reduce)").matches;

  // ── Toast helper ─────────────────────────────
  function toast(msg, kind) {
    var el = document.createElement("div");
    el.className = "toast toast--" + (kind || "ok");
    var icon =
      kind === "warn"
        ? '<path fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" d="M12 9v4m0 4h.01M10.3 3.9 1.8 18a2 2 0 0 0 1.7 3h17a2 2 0 0 0 1.7-3L13.7 3.9a2 2 0 0 0-3.4 0Z"/>'
        : '<path fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" d="M20 6 9 17l-5-5"/>';
    el.innerHTML =
      '<svg viewBox="0 0 24 24" width="16" height="16" aria-hidden="true">' +
      icon +
      "</svg><span></span>";
    el.querySelector("span").textContent = msg;
    toastRegion.appendChild(el);
    requestAnimationFrame(function () {
      el.classList.add("is-visible");
    });
    setTimeout(function () {
      el.classList.remove("is-visible");
      setTimeout(function () {
        if (el.parentNode) el.parentNode.removeChild(el);
      }, 280);
    }, 2600);
  }

  // ── Field validation ─────────────────────────
  function setFieldState(field, state, message) {
    field.classList.remove("is-error", "is-ok");
    var input = field.querySelector("[data-input]");
    var help = field.querySelector("[data-help]");
    if (state === "error") {
      field.classList.add("is-error");
      input.setAttribute("aria-invalid", "true");
    } else {
      input.removeAttribute("aria-invalid");
      if (state === "ok") field.classList.add("is-ok");
    }
    if (message != null && help) help.textContent = message;
  }

  function validateName(field) {
    var input = field.querySelector("[data-input]");
    var v = input.value.trim();
    if (!v) {
      setFieldState(field, "error", "Name is required.");
      return false;
    }
    if (v.length < 2) {
      setFieldState(field, "error", "Enter at least 2 characters.");
      return false;
    }
    setFieldState(field, "ok", "Looks good.");
    return true;
  }

  function validateEmail(field) {
    var input = field.querySelector("[data-input]");
    var v = input.value.trim();
    var re = /^[^\s@]+@[^\s@]+\.[^\s@]{2,}$/;
    if (!v) {
      setFieldState(field, "error", "Email is required.");
      return false;
    }
    if (!re.test(v)) {
      setFieldState(field, "error", "Enter a valid email address.");
      return false;
    }
    setFieldState(field, "ok", "We send the invite here.");
    return true;
  }

  function validateRow(row, focusFirst) {
    var nameField = row.querySelector('[data-field="name"]');
    var emailField = row.querySelector('[data-field="email"]');
    var okName = validateName(nameField);
    var okEmail = validateEmail(emailField);
    if (focusFirst && (!okName || !okEmail)) {
      var bad = !okName ? nameField : emailField;
      bad.querySelector("[data-input]").focus();
    }
    return okName && okEmail;
  }

  // Duplicate-email detection across rows
  function checkDuplicateEmails() {
    var seen = {};
    var rows = list.querySelectorAll("[data-row]");
    var hasDupe = false;
    rows.forEach(function (row) {
      var field = row.querySelector('[data-field="email"]');
      var input = field.querySelector("[data-input]");
      var v = input.value.trim().toLowerCase();
      if (!v) return;
      if (seen[v]) {
        setFieldState(field, "error", "Duplicate email — already invited above.");
        hasDupe = true;
      } else {
        seen[v] = true;
      }
    });
    return !hasDupe;
  }

  // ── Row creation ─────────────────────────────
  function addRow(focus) {
    if (list.children.length >= MAX_ROWS) {
      toast("Seat limit reached (10 max).", "warn");
      return null;
    }
    var node = tmpl.content.firstElementChild.cloneNode(true);
    uid += 1;
    var id = "row" + uid;
    node.dataset.id = id;

    // unique ids + label wiring for a11y
    ["name", "email", "role"].forEach(function (key) {
      var field = node.querySelector('[data-field="' + key + '"]');
      var input = field.querySelector("[data-input]");
      var label = field.querySelector("label");
      var help = field.querySelector("[data-help]");
      var inputId = id + "_" + key;
      input.id = inputId;
      label.setAttribute("for", inputId);
      if (help) {
        var helpId = inputId + "_help";
        help.id = helpId;
        input.setAttribute("aria-describedby", helpId);
      }
      // live re-validation
      if (key === "name") {
        input.addEventListener("blur", function () {
          validateName(field);
        });
        input.addEventListener("input", function () {
          if (field.classList.contains("is-error")) validateName(field);
        });
      } else if (key === "email") {
        input.addEventListener("blur", function () {
          validateEmail(field);
        });
        input.addEventListener("input", function () {
          if (field.classList.contains("is-error")) validateEmail(field);
        });
      }
    });

    node.querySelector("[data-remove]").addEventListener("click", function () {
      removeRow(node);
    });

    list.appendChild(node);

    // smooth enter transition
    if (!prefersReduced) {
      node.classList.add("is-entering");
      requestAnimationFrame(function () {
        requestAnimationFrame(function () {
          node.classList.remove("is-entering");
        });
      });
    }

    renumber();
    if (focus) node.querySelector('[data-input="name"]').focus();
    return node;
  }

  function removeRow(row) {
    if (list.children.length <= 1) {
      toast("At least one member is required.", "warn");
      return;
    }

    // remember focus target: next row, else previous
    var next = row.nextElementSibling || row.previousElementSibling;

    var finalize = function () {
      if (row.parentNode) row.parentNode.removeChild(row);
      renumber();
      if (next) {
        var input = next.querySelector('[data-input="name"]');
        if (input) input.focus();
      } else {
        addBtn.focus();
      }
      toast("Member removed.", "ok");
    };

    if (prefersReduced) {
      finalize();
      return;
    }

    // animate collapse using fixed height -> 0
    row.style.height = row.offsetHeight + "px";
    row.classList.add("is-leaving");
    requestAnimationFrame(function () {
      row.style.height = "0px";
      row.style.marginTop = "0px";
      row.style.paddingTop = "0px";
      row.style.paddingBottom = "0px";
    });
    row.addEventListener("transitionend", function handler(e) {
      if (e.propertyName !== "height") return;
      row.removeEventListener("transitionend", handler);
      finalize();
    });
    // safety fallback
    setTimeout(function () {
      if (row.parentNode && row.classList.contains("is-leaving")) finalize();
    }, 400);
  }

  // ── Renumber + counts + empty state ──────────
  function renumber() {
    var rows = list.querySelectorAll("[data-row]");
    var n = rows.length;
    rows.forEach(function (row, i) {
      var idx = row.querySelector("[data-index]");
      if (idx) idx.textContent = String(i + 1);
      var remove = row.querySelector("[data-remove]");
      // disable remove when only one row remains
      remove.disabled = n <= 1;
    });

    countEl.textContent = n + (n === 1 ? " member" : " members");
    seatEl.textContent = String(n);

    addBtn.disabled = n >= MAX_ROWS;
    emptyState.hidden = n !== 0;

    // hide success once edited again
    if (!successState.hidden) {
      successState.hidden = true;
    }
  }

  // ── Submit ───────────────────────────────────
  function setStatus(msg, kind) {
    statusEl.textContent = msg || "";
    statusEl.classList.remove("is-error", "is-ok");
    if (kind) statusEl.classList.add("is-" + kind);
  }

  form.addEventListener("submit", function (e) {
    e.preventDefault();

    var rows = list.querySelectorAll("[data-row]");
    if (rows.length === 0) {
      setStatus("Add at least one team member before sending.", "error");
      toast("Add at least one member first.", "warn");
      return;
    }

    var allValid = true;
    var firstInvalid = null;
    rows.forEach(function (row) {
      var valid = validateRow(row, false);
      if (!valid && !firstInvalid) firstInvalid = row;
      if (!valid) allValid = false;
    });

    var noDupes = checkDuplicateEmails();
    if (!noDupes) allValid = false;

    if (!allValid) {
      var bad = rows.length;
      var count = list.querySelectorAll(".field.is-error").length;
      setStatus(
        "Please fix " +
          count +
          (count === 1 ? " field" : " fields") +
          " before sending.",
        "error"
      );
      toast("Some rows need attention.", "warn");
      if (firstInvalid) {
        var input = firstInvalid.querySelector(".field.is-error [data-input]");
        if (input) input.focus();
      } else {
        var dupe = list.querySelector(".field.is-error [data-input]");
        if (dupe) dupe.focus();
      }
      return;
    }

    // success
    submitBtn.disabled = true;
    addBtn.disabled = true;
    setStatus("", null);

    var n = rows.length;
    var roleCounts = {};
    rows.forEach(function (row) {
      var role = row.querySelector('[data-input="role"]').value;
      roleCounts[role] = (roleCounts[role] || 0) + 1;
    });
    var roleSummary = Object.keys(roleCounts)
      .map(function (k) {
        return roleCounts[k] + " " + ROLE_LABELS[k].toLowerCase();
      })
      .join(", ");

    successText.textContent =
      "Sent " +
      n +
      (n === 1 ? " invitation" : " invitations") +
      " (" +
      roleSummary +
      "). Recipients will receive an email shortly.";
    successState.hidden = false;
    successState.scrollIntoView({ behavior: prefersReduced ? "auto" : "smooth", block: "nearest" });
    resetBtn.focus();
    toast("Invites sent successfully.", "ok");
  });

  // ── Reset / invite more ──────────────────────
  resetBtn.addEventListener("click", function () {
    successState.hidden = true;
    submitBtn.disabled = false;
    list.innerHTML = "";
    uid = 0;
    addRow(true);
    setStatus("", null);
    toast("Ready for new invites.", "ok");
  });

  addBtn.addEventListener("click", function () {
    addRow(true);
  });

  // ── Init ─────────────────────────────────────
  addRow(false);
})();

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Form — Repeatable field rows</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&display=swap"
      rel="stylesheet"
    />
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <main class="page">
      <form class="card" id="teamForm" novalidate>
        <header class="card__head">
          <div class="card__eyebrow">
            <svg viewBox="0 0 24 24" width="16" height="16" aria-hidden="true">
              <path
                fill="none"
                stroke="currentColor"
                stroke-width="2"
                stroke-linecap="round"
                stroke-linejoin="round"
                d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2M9 11a4 4 0 1 0 0-8 4 4 0 0 0 0 8Zm14 10v-2a4 4 0 0 0-3-3.87M16 3.13A4 4 0 0 1 16 11"
              />
            </svg>
            Project invite
          </div>
          <h1 class="card__title">Invite your team</h1>
          <p class="card__sub">
            Add the people who should get access to <strong>Northwind Studio</strong>. You can edit
            roles later from project settings.
          </p>
        </header>

        <fieldset class="rows" id="rowsFieldset">
          <legend class="rows__legend">
            Team members
            <span class="rows__count" id="rowCount" aria-live="polite">1 member</span>
          </legend>

          <!-- Repeatable rows injected here by script.js -->
          <div class="rows__list" id="rowsList" role="group" aria-label="Team member rows"></div>

          <!-- Empty state placeholder (shown only when list is emptied to zero) -->
          <div class="rows__empty" id="rowsEmpty" hidden>
            <svg viewBox="0 0 24 24" width="22" height="22" aria-hidden="true">
              <path
                fill="none"
                stroke="currentColor"
                stroke-width="2"
                stroke-linecap="round"
                stroke-linejoin="round"
                d="M16 21v-2a4 4 0 0 0-4-4H6a4 4 0 0 0-4 4v2M9 11a4 4 0 1 0 0-8 4 4 0 0 0 0 8ZM19 8v6M22 11h-6"
              />
            </svg>
            <p>No members yet. Add the first teammate to invite.</p>
          </div>

          <button type="button" class="btn-add" id="addRow">
            <svg viewBox="0 0 24 24" width="18" height="18" aria-hidden="true">
              <path
                fill="none"
                stroke="currentColor"
                stroke-width="2"
                stroke-linecap="round"
                stroke-linejoin="round"
                d="M12 5v14M5 12h14"
              />
            </svg>
            Add member
          </button>
        </fieldset>

        <footer class="card__foot">
          <p class="form-status" id="formStatus" role="status" aria-live="polite"></p>
          <div class="card__actions">
            <span class="seat-meter" aria-live="polite">
              <strong id="seatTotal">1</strong> of 10 seats used
            </span>
            <button type="submit" class="btn-submit" id="submitBtn">
              Send invites
              <svg viewBox="0 0 24 24" width="16" height="16" aria-hidden="true">
                <path
                  fill="none"
                  stroke="currentColor"
                  stroke-width="2"
                  stroke-linecap="round"
                  stroke-linejoin="round"
                  d="M5 12h14M13 6l6 6-6 6"
                />
              </svg>
            </button>
          </div>
        </footer>

        <!-- Success confirmation, revealed after a valid submit -->
        <div class="success" id="successState" hidden role="alert">
          <span class="success__badge">
            <svg viewBox="0 0 24 24" width="22" height="22" aria-hidden="true">
              <path
                fill="none"
                stroke="currentColor"
                stroke-width="2.5"
                stroke-linecap="round"
                stroke-linejoin="round"
                d="M20 6 9 17l-5-5"
              />
            </svg>
          </span>
          <div>
            <h2 class="success__title">Invites sent</h2>
            <p class="success__text" id="successText">Your invitations are on the way.</p>
          </div>
          <button type="button" class="btn-reset" id="resetBtn">Invite more</button>
        </div>
      </form>
    </main>

    <!-- Row template -->
    <template id="rowTemplate">
      <div class="row" data-row>
        <span class="row__index" data-index aria-hidden="true">1</span>

        <div class="row__grid">
          <div class="field" data-field="name">
            <label class="field__label">
              Full name <span class="req" aria-hidden="true">*</span>
            </label>
            <input
              type="text"
              class="field__input"
              data-input="name"
              placeholder="e.g. Priya Raman"
              autocomplete="off"
              required
            />
            <p class="field__help" data-help>First and last name.</p>
          </div>

          <div class="field" data-field="email">
            <label class="field__label">
              Work email <span class="req" aria-hidden="true">*</span>
            </label>
            <input
              type="email"
              class="field__input"
              data-input="email"
              placeholder="[email protected]"
              autocomplete="off"
              required
            />
            <p class="field__help" data-help>We send the invite here.</p>
          </div>

          <div class="field field--role" data-field="role">
            <label class="field__label">Role</label>
            <div class="select-wrap">
              <select class="field__input field__select" data-input="role">
                <option value="viewer">Viewer</option>
                <option value="editor" selected>Editor</option>
                <option value="admin">Admin</option>
                <option value="owner">Owner</option>
              </select>
              <svg class="select-wrap__chev" viewBox="0 0 24 24" width="16" height="16" aria-hidden="true">
                <path
                  fill="none"
                  stroke="currentColor"
                  stroke-width="2"
                  stroke-linecap="round"
                  stroke-linejoin="round"
                  d="m6 9 6 6 6-6"
                />
              </svg>
            </div>
          </div>
        </div>

        <button type="button" class="row__remove" data-remove aria-label="Remove this member">
          <svg viewBox="0 0 24 24" width="18" height="18" aria-hidden="true">
            <path
              fill="none"
              stroke="currentColor"
              stroke-width="2"
              stroke-linecap="round"
              stroke-linejoin="round"
              d="M3 6h18M8 6V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2m3 0v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6"
            />
          </svg>
        </button>
      </div>
    </template>

    <!-- Toast region -->
    <div class="toast-region" id="toastRegion" aria-live="assertive" aria-atomic="true"></div>

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