/* =================================================================
   TEACHER'S PLAN EDITOR
   The Deck Builder's authoring surface for v4 Events plans.

   Everything is namespaced .tpe-* and scoped under .tpe, so the
   editor can look like the teacher's screen without inheriting
   or leaking Deck Builder styling.

   Type scales from ONE number — --tpe-fs. The A A A control in the
   toolbar changes it, and every size in here is an em, so the whole
   editor grows together. Older eyes are the point.
   ================================================================= */

.tpe {
    --tpe-fs: 1;
    font-size: calc(16px * var(--tpe-fs));

    --tpe-panel: #FFFFFF;
    --tpe-panel-2: #F5F6FA;
    --tpe-panel-3: #EDEFF5;
    --tpe-rule: #E4E6EF;
    --tpe-ink: #14161F;
    --tpe-ink-soft: #565C70;
    --tpe-ink-faint: #7F8598;

    --tpe-teacher: #4F46E5;   --tpe-teacher-wash: #EEEDFD;
    --tpe-student: #0D8A80;   --tpe-student-wash: #E1F4F1;
    --tpe-note: #A8500A;      --tpe-note-wash: #FDF2E2;
    --tpe-do: #4E5766;        --tpe-do-wash: #EEF0F4;
    --tpe-before: #0E6E47;    --tpe-before-wash: #E2F5EA;
    --tpe-after: #B92B34;     --tpe-after-wash: #FDE9EA;
    --tpe-danger: #C81E1E;    --tpe-danger-wash: #FDEBEB;

    --tpe-shadow: 0 1px 2px rgba(20, 22, 31, .05), 0 14px 38px -14px rgba(20, 22, 31, .2);
    --tpe-shadow-sm: 0 1px 2px rgba(20, 22, 31, .06);
    --tpe-serif: 'Iowan Old Style', 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;

    display: flex;
    flex-direction: column;
    min-height: 0;
    height: min(84vh, 940px);
    position: relative;
    background: var(--tpe-panel);
    color: var(--tpe-ink);
    border: 1px solid var(--tpe-rule);
    border-radius: 12px;
    overflow: hidden;
}

.tpe[data-fs="large"]  { --tpe-fs: 1.13; }
.tpe[data-fs="xlarge"] { --tpe-fs: 1.28; }

[data-theme="dark"] .tpe {
    --tpe-panel: #171A21;
    --tpe-panel-2: #1E222B;
    --tpe-panel-3: #262B35;
    --tpe-rule: #2E3441;
    --tpe-ink: #F2F4F9;
    --tpe-ink-soft: #A7AEC0;
    --tpe-ink-faint: #7A8194;

    --tpe-teacher: #9A93F7;   --tpe-teacher-wash: #272150;
    --tpe-student: #4BD3C2;   --tpe-student-wash: #0E3B36;
    --tpe-note: #EDAD57;      --tpe-note-wash: #3D2C13;
    --tpe-do: #A3AAB9;        --tpe-do-wash: #252A35;
    --tpe-before: #5AD497;    --tpe-before-wash: #123522;
    --tpe-after: #F99AA0;     --tpe-after-wash: #3E1C1E;
    --tpe-danger: #FA8484;    --tpe-danger-wash: #3D1919;

    --tpe-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 14px 38px -14px rgba(0, 0, 0, .65);
    --tpe-shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);
}

.tpe * { box-sizing: border-box; }
.tpe p { max-width: none; margin: 0 0 .6em; }
.tpe p:last-child { margin-bottom: 0; }
.tpe [contenteditable] { outline: none; }
.tpe .tpe-muted { color: var(--tpe-ink-soft); font-size: .82em; }
.tpe .tpe-spacer { flex: 1 1 auto; }
.tpe code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: .86em; background: var(--tpe-panel-2);
    border: 1px solid var(--tpe-rule); padding: 1px 5px; border-radius: 4px;
}
.tpe-fatal { padding: 24px; color: #C81E1E; font-weight: 600; }

.tpe-eyebrow {
    font-size: .68em; font-weight: 650; letter-spacing: .1em; text-transform: uppercase;
    color: var(--tpe-ink-faint); margin: 0 0 .7em;
}

/* ---------- toolbar ---------- */
.tpe-bar {
    flex: 0 0 auto; display: flex; align-items: center; gap: .7em; flex-wrap: wrap;
    padding: .62em 1.1em; border-bottom: 1px solid var(--tpe-rule); background: var(--tpe-panel-2);
}
.tpe-crumb { font-size: .78em; font-weight: 650; color: var(--tpe-ink-soft); }
.tpe-crumb b { color: var(--tpe-ink); }
.tpe-dirty {
    font-size: .68em; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
    color: var(--tpe-note); background: var(--tpe-note-wash); border-radius: 999px; padding: .28em .7em;
}

.tpe-btn {
    font: inherit; font-size: .82em; font-weight: 650; min-height: 2.3em; padding: .35em .9em;
    border: 1px solid var(--tpe-rule); border-radius: .5em; background: var(--tpe-panel);
    color: var(--tpe-ink); cursor: pointer; display: inline-flex; align-items: center; gap: .45em;
}
.tpe-btn:hover { border-color: var(--tpe-ink-faint); }
.tpe-btn:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: 2px; }
.tpe-btn:disabled { opacity: .45; cursor: not-allowed; }
.tpe-btn-primary { background: var(--tpe-teacher); border-color: var(--tpe-teacher); color: #fff; }
.tpe-btn-primary:hover { filter: brightness(1.07); }
.tpe-btn-sm { font-size: .74em; min-height: 2em; padding: .25em .65em; }

.tpe-seg {
    display: flex; background: var(--tpe-panel); border: 1px solid var(--tpe-rule);
    border-radius: .55em; padding: 2px; gap: 2px;
}
.tpe-seg button {
    font: inherit; font-size: .78em; font-weight: 650; min-height: 2em; padding: .3em .8em;
    border: 0; border-radius: .45em; cursor: pointer; background: transparent;
    color: var(--tpe-ink-soft); display: inline-flex; align-items: center; gap: .4em;
}
.tpe-seg button[aria-selected="true"] { background: var(--tpe-teacher); color: #fff; }
.tpe-seg button:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: 1px; }

.tpe-fsctl {
    display: flex; align-items: center; gap: .3em; padding: 2px;
    border: 1px solid var(--tpe-rule); border-radius: .55em; background: var(--tpe-panel);
}
.tpe-fsctl button {
    font: inherit; font-weight: 700; border: 0; background: transparent; color: var(--tpe-ink-soft);
    cursor: pointer; border-radius: .4em; min-height: 1.9em; padding: .2em .55em; line-height: 1;
}
.tpe-fsctl button:hover { background: var(--tpe-panel-2); color: var(--tpe-ink); }
.tpe-fsctl button[aria-pressed="true"] { background: var(--tpe-teacher); color: #fff; }
.tpe-fsctl button:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: 1px; }
.tpe-fsctl .tpe-a1 { font-size: .72em; }
.tpe-fsctl .tpe-a2 { font-size: .86em; }
.tpe-fsctl .tpe-a3 { font-size: 1em; }

/* ---------- panes ---------- */
.tpe-panes { flex: 1 1 auto; display: flex; min-height: 0; }

.tpe-pane-nav {
    flex: 0 0 clamp(230px, 18vw, 310px); min-height: 0; overflow-y: auto;
    border-right: 1px solid var(--tpe-rule); background: var(--tpe-panel-2); padding-bottom: .8em;
}
.tpe-pane-main {
    flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column;
    min-height: 0; background: var(--tpe-panel);
}
.tpe-pane-prev {
    flex: 0 0 clamp(290px, 23vw, 390px); min-height: 0; display: flex; flex-direction: column;
    border-left: 1px solid var(--tpe-rule); background: var(--tpe-panel-2);
}
.tpe-pane-title {
    flex: 0 0 auto; font-size: .66em; font-weight: 700; letter-spacing: .09em; text-transform: uppercase;
    color: var(--tpe-ink-faint); padding: .75em 1em .55em;
    border-bottom: 1px solid var(--tpe-rule); display: flex; align-items: center; gap: .5em;
}
.tpe-pane-title .tpe-cnt { margin-left: auto; font-variant-numeric: tabular-nums; }
.tpe-prev-scroll { flex: 1 1 auto; overflow-y: auto; min-height: 0; padding: .85em; }

/* ---------- left rail ---------- */
.tpe-railov {
    width: 100%; font: inherit; font-size: .84em; font-weight: 650; text-align: left; cursor: pointer;
    border: 0; border-bottom: 1px solid var(--tpe-rule); background: transparent; color: var(--tpe-ink);
    padding: .8em 1em; display: flex; align-items: center; gap: .55em;
}
.tpe-railov:hover { background: var(--tpe-panel-3); }
.tpe-railov.tpe-on { background: var(--tpe-teacher-wash); color: var(--tpe-teacher); }
.tpe-railov:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: -2px; }

.tpe-raileyebrow {
    font-size: .64em; font-weight: 800; letter-spacing: .09em; text-transform: uppercase;
    color: var(--tpe-ink-faint); margin: 0; padding: .9em 1em .4em;
    display: flex; align-items: center; gap: .5em;
}
.tpe-raileyebrow span { margin-left: auto; font-variant-numeric: tabular-nums; }

.tpe-railev { border-bottom: 1px solid var(--tpe-rule); }
.tpe-railev-go {
    width: 100%; font: inherit; text-align: left; cursor: pointer; border: 0; background: transparent;
    color: var(--tpe-ink); padding: .55em .8em; display: flex; align-items: center; gap: .55em;
}
.tpe-railev-go:hover { background: var(--tpe-panel-3); }
.tpe-railev-go.tpe-on { background: var(--tpe-teacher-wash); }
.tpe-railev-go:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: -2px; }
.tpe-railev-n {
    flex: 0 0 auto; width: 1.45em; height: 1.45em; border-radius: .4em; display: grid; place-items: center;
    background: var(--tpe-panel); border: 1px solid var(--tpe-rule); color: var(--tpe-ink-soft);
    font-size: .72em; font-weight: 700;
}
.tpe-railev-go.tpe-on .tpe-railev-n { background: var(--tpe-teacher); border-color: var(--tpe-teacher); color: #fff; }
.tpe-railev-t {
    flex: 1 1 auto; min-width: 0; font-size: .83em; font-weight: 650; line-height: 1.3;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.tpe-railev-c, .tpe-railset-c {
    flex: 0 0 auto; font-size: .7em; font-weight: 700; color: var(--tpe-ink-faint);
    background: var(--tpe-panel); border: 1px solid var(--tpe-rule); border-radius: 999px;
    padding: 0 .4em; font-variant-numeric: tabular-nums;
}
.tpe-railsets { padding-bottom: .35em; }
.tpe-railset { display: flex; align-items: stretch; }
.tpe-railset-go {
    flex: 1 1 auto; min-width: 0; font: inherit; font-size: .8em; text-align: left; cursor: pointer;
    border: 0; border-left: 3px solid transparent; background: transparent; color: var(--tpe-ink-soft);
    padding: .35em .8em .35em 1.2em; display: flex; align-items: center; gap: .45em;
}
.tpe-railset-go:hover { background: var(--tpe-panel-3); color: var(--tpe-ink); }
.tpe-railset-go:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: -2px; }
.tpe-railset.tpe-on .tpe-railset-go {
    background: var(--tpe-panel); color: var(--tpe-ink); font-weight: 650;
    border-left-color: var(--tpe-teacher);
}
.tpe-railset-n { flex: 0 0 auto; font-size: .8em; font-weight: 700; color: var(--tpe-ink-faint); font-variant-numeric: tabular-nums; }
.tpe-railset-t { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tpe-railset-mv {
    flex: 0 0 auto; display: flex; flex-direction: column; justify-content: center; gap: 1px;
    padding-right: .35em; opacity: 0; transition: opacity .12s ease;
}
.tpe-railset:hover .tpe-railset-mv,
.tpe-railset:focus-within .tpe-railset-mv { opacity: 1; }
.tpe-railset-mv button {
    font: inherit; font-size: .62em; line-height: 1; border: 0; background: transparent;
    color: var(--tpe-ink-faint); cursor: pointer; padding: .15em .3em; border-radius: .3em;
}
.tpe-railset-mv button:hover:not(:disabled) { background: var(--tpe-panel-3); color: var(--tpe-ink); }
.tpe-railset-mv button:disabled { opacity: .25; cursor: not-allowed; }

.tpe-railadd {
    font: inherit; font-size: .74em; font-weight: 650; cursor: pointer; border: 1px dashed var(--tpe-rule);
    background: transparent; color: var(--tpe-ink-faint); border-radius: .45em;
    padding: .35em 0; margin: .25em .8em .1em; width: calc(100% - 1.6em);
}
.tpe-railadd:hover { color: var(--tpe-teacher); border-color: var(--tpe-teacher); }
.tpe-railadd-ev { margin-top: .7em; }

/* ---------- word bank: pinned above the scroller, dense inline flow ---------- */
.tpe-bank { flex: 0 0 auto; border-bottom: 1px solid var(--tpe-rule); background: var(--tpe-panel-2); }
.tpe-bank-head { display: flex; align-items: center; gap: .6em; padding: .5em 1.05em; flex-wrap: wrap; }
.tpe-bank-toggle {
    flex: 0 0 auto; font: inherit; font-size: .8em; font-weight: 700; cursor: pointer;
    border: 1px solid var(--tpe-rule); background: var(--tpe-panel); color: var(--tpe-ink-soft);
    border-radius: .45em; width: 1.9em; height: 1.9em; display: grid; place-items: center; line-height: 1;
}
.tpe-bank-toggle:hover { color: var(--tpe-ink); border-color: var(--tpe-ink-faint); }
.tpe-bank-toggle:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: 2px; }
.tpe-bank[data-open="false"] .tpe-bank-toggle { transform: rotate(-90deg); }
.tpe-bank[data-open="false"] .tpe-bank-body { display: none; }
.tpe-bank-lbl {
    font-size: .72em; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
    color: var(--tpe-ink-faint); white-space: nowrap;
}
.tpe-bank-lbl b { color: var(--tpe-ink); }
.tpe-bank-count {
    font-size: .7em; font-weight: 700; color: var(--tpe-ink-faint); background: var(--tpe-panel);
    border: 1px solid var(--tpe-rule); border-radius: 999px; padding: .1em .55em; font-variant-numeric: tabular-nums;
}
.tpe-bank-sp { flex: 1 1 auto; }
.tpe-bank-body { padding: 0 1.05em .55em; }
.tpe-bank-flow {
    display: flex; flex-wrap: wrap; gap: 3px 4px; align-items: center;
    max-height: 9.4em; overflow-y: auto;
}
/* Category names act as inline dividers rather than owning a row */
.tpe-gtag {
    flex: 0 0 auto; font-size: .62em; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
    color: var(--tpe-ink-faint); padding: 0 .3em 0 .55em; border-left: 2px solid var(--tpe-rule);
    margin-left: .2em; white-space: nowrap; align-self: stretch; display: flex; align-items: center;
}
.tpe-gtag:first-child { border-left: 0; margin-left: 0; padding-left: 0; }
.tpe-w {
    flex: 0 0 auto; font: inherit; font-size: .76em; line-height: 1.25; padding: .12em .42em;
    border-radius: .28em; background: var(--tpe-panel); border: 1px solid var(--tpe-rule);
    color: var(--tpe-ink); cursor: pointer;
}
.tpe-w:hover { border-color: var(--tpe-teacher); color: var(--tpe-teacher); }
.tpe-w:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: 1px; }
.tpe-w-aff { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .7em; color: var(--tpe-ink-soft); }

.tpe-lookup { position: relative; display: flex; align-items: center; gap: .35em; }
.tpe-lookup input {
    font: inherit; font-size: .82em; height: 2.15em; width: 13em; border-radius: .5em;
    border: 1px solid var(--tpe-rule); background: var(--tpe-panel); color: var(--tpe-ink);
    padding: 0 .6em 0 2em;
}
.tpe-lookup input:focus {
    outline: none; border-color: var(--tpe-teacher); box-shadow: 0 0 0 2px var(--tpe-teacher-wash);
}
.tpe-lookup .fa-search {
    position: absolute; left: .6em; font-size: .72em; color: var(--tpe-ink-faint); pointer-events: none;
}
.tpe-lksel {
    font: inherit; font-size: .76em; font-weight: 650; height: 2.3em; border-radius: .5em;
    border: 1px solid var(--tpe-rule); background: var(--tpe-panel); color: var(--tpe-ink-soft);
    padding: 0 .3em; cursor: pointer;
}

/* ---------- lookup hits ---------- */
.tpe-hits { padding: .55em 1.05em .7em; border-top: 1px dashed var(--tpe-rule); background: var(--tpe-panel); }
.tpe-hits-head { display: flex; align-items: baseline; gap: .6em; flex-wrap: wrap; margin-bottom: .4em; }
.tpe-hits-head .tpe-eyebrow { margin: 0; font-size: .66em; }
.tpe-hits-legend {
    display: flex; gap: .7em; margin-left: auto; font-size: .66em; font-weight: 650; flex-wrap: wrap;
}
.tpe-hits-legend span { display: inline-flex; align-items: center; gap: .3em; color: var(--tpe-ink-faint); white-space: nowrap; }
.tpe-hits-legend i { width: .55em; height: .55em; border-radius: 50%; display: block; }
.tpe-i-before { background: var(--tpe-before); }
.tpe-i-same { background: var(--tpe-teacher); }
.tpe-i-after { background: var(--tpe-after); }
.tpe-hits-list { display: flex; flex-wrap: wrap; gap: 4px; max-height: 8em; overflow-y: auto; }
.tpe-bub {
    font: inherit; font-size: .78em; font-weight: 600; cursor: pointer; border-radius: 999px;
    padding: .14em .6em; display: inline-flex; align-items: center; gap: .4em; border: 1px solid;
}
.tpe-bub-l { font-size: .78em; font-weight: 700; opacity: .85; font-variant-numeric: tabular-nums; }
.tpe-bub-cat { font-size: .7em; font-weight: 650; opacity: .7; text-transform: uppercase; letter-spacing: .04em; }
.tpe-bub-before { background: var(--tpe-before-wash); border-color: var(--tpe-before); color: var(--tpe-before); }
.tpe-bub-same { background: var(--tpe-teacher-wash); border-color: var(--tpe-teacher); color: var(--tpe-teacher); }
.tpe-bub-after { background: var(--tpe-after-wash); border-color: var(--tpe-after); color: var(--tpe-after); }
.tpe-bub:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: 2px; }
.tpe-hits-none { font-size: .8em; color: var(--tpe-ink-faint); }
.tpe-hits-stem { font-size: .7em; color: var(--tpe-ink-faint); margin: 0 0 .35em; }

/* ---------- canvas ---------- */
.tpe-canvas { flex: 1 1 auto; overflow-y: auto; min-height: 0; padding: 1.3em 2em 3em; }
.tpe-canvas-inner { max-width: 52em; }
.tpe-kicker {
    font-size: .7em; font-weight: 700; letter-spacing: .09em; text-transform: uppercase;
    color: var(--tpe-ink-faint); margin: 0 0 .45em;
}
.tpe-head { display: flex; align-items: flex-start; gap: .7em; margin-bottom: .3em; }
.tpe-head-fields { flex: 1 1 auto; min-width: 0; }
.tpe-head-sub {
    margin-top: .4em; display: flex; gap: .7em; align-items: baseline;
    flex-wrap: wrap; position: relative;
}
.tpe-head-tools { flex: 0 0 auto; display: flex; gap: 4px; margin-top: .35em; }
/* "Lesson 1" must stay on one line — the number is an editable field */
.tpe-lessonno {
    font-size: .74em; color: var(--tpe-ink-faint); font-weight: 650;
    display: inline-flex; align-items: baseline; gap: .35em; white-space: nowrap;
}
.tpe-lessonno .tpe-f { min-width: 1.6em; text-align: center; }
.tpe-rule { height: 1px; background: var(--tpe-rule); margin: 1em 0 .3em; border: 0; }

/* editable fields */
.tpe-f {
    border-radius: .4em; padding: .12em .35em; margin: -.12em -.35em; cursor: text;
    transition: background .12s ease, box-shadow .12s ease;
}
.tpe-f:hover { background: var(--tpe-panel-2); box-shadow: inset 0 0 0 1px var(--tpe-rule); }
.tpe-f:focus { background: var(--tpe-panel); box-shadow: inset 0 0 0 2px var(--tpe-teacher); }
.tpe-f.tpe-empty::before {
    content: attr(data-ph); color: var(--tpe-ink-faint); font-style: italic; opacity: .8;
}
.tpe-f-title {
    font-family: var(--tpe-serif); font-size: 1.72em; font-weight: 600;
    letter-spacing: -.015em; line-height: 1.2;
}
.tpe-f-sub { font-size: .85em; color: var(--tpe-ink-soft); }
.tpe-f-say { font-family: var(--tpe-serif); font-size: 1.24em; line-height: 1.4; }
.tpe-f-body { font-size: .95em; line-height: 1.55; }
.tpe-f-goal { font-size: .98em; line-height: 1.5; }
.tpe-f-chip {
    font-size: .85em; padding: .15em .5em; border-radius: .35em; display: inline-block;
    background: var(--tpe-panel-2); border: 1px solid var(--tpe-rule);
}
.tpe-f-chip:hover { border-color: var(--tpe-teacher); }

/* element groups */
.tpe-grp { position: relative; padding: .65em 0; }
.tpe-grp + .tpe-grp { border-top: 1px dashed var(--tpe-rule); }
.tpe-grp-in { display: flex; gap: .65em; align-items: flex-start; }
.tpe-grp-mark {
    flex: 0 0 auto; width: 1.6em; height: 1.6em; border-radius: .42em; display: grid; place-items: center;
    font-size: .8em; font-weight: 700; margin-top: .15em;
}
.tpe-grp-body { flex: 1 1 auto; min-width: 0; }
.tpe-grp-label {
    font-size: .7em; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
    margin: 0 0 .3em; display: flex; align-items: center; gap: .4em; flex-wrap: wrap;
}
.tpe-grp-note {
    font-weight: 650; letter-spacing: 0; text-transform: none; color: var(--tpe-ink-faint);
}

.tpe-m-note { background: var(--tpe-note-wash); color: var(--tpe-note); }
.tpe-m-do { background: var(--tpe-do-wash); color: var(--tpe-do); }
.tpe-m-teacher { background: var(--tpe-teacher-wash); color: var(--tpe-teacher); }
.tpe-m-student { background: var(--tpe-student-wash); color: var(--tpe-student); }
.tpe-l-note { color: var(--tpe-note); }
.tpe-l-do { color: var(--tpe-do); }
.tpe-l-teacher { color: var(--tpe-teacher); }
.tpe-l-student { color: var(--tpe-student); }

.tpe-itm { display: flex; align-items: flex-start; gap: .45em; position: relative; }
.tpe-itm + .tpe-itm { margin-top: .45em; padding-top: .45em; border-top: 1px dashed var(--tpe-rule); }
.tpe-itm-n {
    flex: 0 0 auto; font-size: .7em; font-weight: 700; color: var(--tpe-ink-faint);
    font-variant-numeric: tabular-nums; margin-top: .6em; width: 1.1em; text-align: right;
}
.tpe-itm-f { flex: 1 1 auto; min-width: 0; }
.tpe-itm-tools { flex: 0 0 auto; display: flex; gap: 1px; opacity: 0; transition: opacity .12s ease; }
.tpe-itm:hover .tpe-itm-tools,
.tpe-itm:focus-within .tpe-itm-tools { opacity: 1; }

.tpe-ic {
    width: 1.85em; height: 1.85em; border-radius: .4em; border: 0; background: transparent;
    color: var(--tpe-ink-faint); cursor: pointer; font-size: .85em; line-height: 1;
    display: grid; place-items: center; font-family: inherit;
}
.tpe-ic:hover:not(:disabled) { background: var(--tpe-panel-2); color: var(--tpe-ink); }
.tpe-ic:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: 1px; }
.tpe-ic-del:hover:not(:disabled) { background: var(--tpe-danger-wash); color: var(--tpe-danger); }
.tpe-ic-chg:hover:not(:disabled) { background: var(--tpe-teacher-wash); color: var(--tpe-teacher); }
.tpe-ic:disabled { opacity: .28; cursor: not-allowed; }

.tpe-blk-note {
    background: var(--tpe-note-wash); border: 1px solid var(--tpe-note);
    border-radius: .6em; padding: .6em .75em;
}
.tpe-blk-setup {
    background: var(--tpe-do-wash); border: 1px solid var(--tpe-rule); border-left: 3px solid var(--tpe-do);
    border-radius: .55em; padding: .6em .75em;
}
.tpe-gap { margin-top: .5em; }

/* ---------- menus ---------- */
.tpe-addel { margin-top: 1em; position: relative; }
.tpe-addel > .tpe-btn { border-style: dashed; color: var(--tpe-ink-soft); }
.tpe-addel > .tpe-btn:hover { color: var(--tpe-teacher); border-color: var(--tpe-teacher); }
.tpe-menu {
    position: absolute; z-index: 30; top: calc(100% + .35em); left: 0; min-width: 17em; display: none;
    background: var(--tpe-panel); border: 1px solid var(--tpe-rule); border-radius: .65em;
    box-shadow: var(--tpe-shadow); padding: .25em;
}
.tpe-menu[data-open="true"] { display: block; }
.tpe-menu-up { top: auto; bottom: calc(100% + .35em); }
.tpe-menu button {
    width: 100%; font: inherit; font-size: .85em; text-align: left; cursor: pointer; border: 0;
    background: transparent; color: var(--tpe-ink); border-radius: .45em; padding: .5em .6em;
    display: flex; align-items: center; gap: .6em;
}
.tpe-menu button:hover:not(:disabled) { background: var(--tpe-panel-2); }
.tpe-menu button:focus-visible { outline: 2px solid var(--tpe-teacher); outline-offset: -2px; }
.tpe-menu button:disabled { opacity: .4; cursor: default; }
.tpe-mk {
    flex: 0 0 auto; width: 1.5em; height: 1.5em; border-radius: .35em;
    display: grid; place-items: center; font-size: .78em; font-weight: 700;
}
.tpe-mx {
    margin-left: auto; font-size: .76em; color: var(--tpe-ink-faint); font-weight: 650;
    font-variant-numeric: tabular-nums;
}
.tpe-menu-sep { height: 1px; background: var(--tpe-rule); margin: .25em .2em; }
.tpe-menu-head {
    font-size: .7em; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
    color: var(--tpe-ink-faint); padding: .5em .6em .3em; margin: 0;
}
.tpe-menu-note { font-size: .74em; font-weight: 600; color: var(--tpe-ink-soft); padding: 0 .6em .5em; margin: 0; }
.tpe-chgwrap { position: relative; }

.tpe-foot {
    margin-top: 1.4em; padding-top: .9em; border-top: 1px solid var(--tpe-rule);
    display: flex; align-items: center; gap: .5em; flex-wrap: wrap;
}

/* ---------- overview blocks ---------- */
.tpe-ovblk { margin-bottom: 1.2em; }
.tpe-ovblk > .tpe-eyebrow { margin-bottom: .5em; display: flex; align-items: center; gap: .5em; }
.tpe-ovblk-goals {
    background: var(--tpe-teacher-wash); border: 1px solid var(--tpe-teacher);
    border-radius: .7em; padding: .8em .95em;
}
.tpe-ovblk-goals > .tpe-eyebrow { color: var(--tpe-teacher); }
.tpe-goal { display: flex; align-items: flex-start; gap: .5em; }
.tpe-goal + .tpe-goal { margin-top: .4em; }
.tpe-goal-b { flex: 0 0 auto; color: var(--tpe-teacher); margin-top: .45em; font-size: .7em; }
.tpe-goal-f { flex: 1 1 auto; min-width: 0; }
.tpe-goal-tools { flex: 0 0 auto; display: flex; gap: 1px; opacity: 0; transition: opacity .12s ease; }
.tpe-goal:hover .tpe-goal-tools,
.tpe-goal:focus-within .tpe-goal-tools { opacity: 1; }
.tpe-add-line {
    font: inherit; font-size: .76em; font-weight: 650; cursor: pointer; margin-top: .55em;
    border: 1px dashed var(--tpe-rule); background: transparent; color: var(--tpe-ink-faint);
    border-radius: .45em; padding: .3em .7em;
}
.tpe-add-line:hover { color: var(--tpe-teacher); border-color: var(--tpe-teacher); }
.tpe-chipset { display: flex; flex-wrap: wrap; gap: .35em; align-items: center; }
.tpe-chipwrap { position: relative; display: inline-flex; align-items: center; }
/* Faded rather than display:none, like every other hover tool here. A
   removed element cannot be tapped on a tablet or reached with Tab, and
   this was the one control in the editor that made that mistake. */
.tpe-chip-x {
    position: absolute; top: -.4em; right: -.4em; width: 1.15em; height: 1.15em; border-radius: 50%;
    border: 1px solid var(--tpe-rule); background: var(--tpe-panel); color: var(--tpe-ink-faint);
    font-size: .62em; cursor: pointer; display: grid; place-items: center; line-height: 1; padding: 0;
    opacity: 0; transition: opacity .12s ease;
}
.tpe-chipwrap:hover .tpe-chip-x,
.tpe-chipwrap:focus-within .tpe-chip-x,
.tpe-chip-x:focus-visible { opacity: 1; }
@media (hover: none) { .tpe-chip-x { opacity: .55; } }
.tpe-chip-x:hover { background: var(--tpe-danger-wash); color: var(--tpe-danger); border-color: var(--tpe-danger); }
.tpe-chip-add {
    font: inherit; font-size: .8em; font-weight: 650; cursor: pointer; border: 1px dashed var(--tpe-rule);
    background: transparent; color: var(--tpe-ink-faint); border-radius: .35em; padding: .16em .5em;
}
.tpe-chip-add:hover { color: var(--tpe-teacher); border-color: var(--tpe-teacher); }
.tpe-legrow { display: flex; gap: .55em; align-items: baseline; margin-bottom: .35em; }
.tpe-legrow code { flex: 0 0 auto; color: var(--tpe-teacher); font-size: .8em; }
.tpe-legrow-f { flex: 1 1 auto; min-width: 0; }
.tpe-el-n {
    font-size: .72em; font-weight: 700; color: var(--tpe-ink-faint); background: var(--tpe-panel-2);
    border: 1px solid var(--tpe-rule); border-radius: 999px; padding: 0 .4em; font-variant-numeric: tabular-nums;
}

/* ---------- preview ---------- */
.tpe-device {
    background: var(--tpe-panel); border: 1px solid var(--tpe-rule); border-radius: 1em;
    overflow: hidden; box-shadow: var(--tpe-shadow-sm);
}
.tpe-dev-top { padding: .5em .75em; border-bottom: 1px solid var(--tpe-rule); background: var(--tpe-panel-2); }
.tpe-dev-top b { display: block; font-family: var(--tpe-serif); font-size: .92em; font-weight: 600; }
.tpe-dev-top span {
    font-size: .66em; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
    color: var(--tpe-ink-faint);
}
.tpe-dev-body { padding: .75em; }
.tpe-dev-centred { text-align: center; padding: 1.2em .85em; }
.tpe-prev-bigicon { font-size: 1.6em; margin-bottom: .35em; }
.tpe-prev-bigtitle { font-family: var(--tpe-serif); font-size: 1em; display: block; margin-bottom: .55em; }
.tpe-prev-setlabel {
    display: flex; align-items: baseline; gap: .5em; margin-bottom: .6em; padding-bottom: .55em;
    border-bottom: 1px solid var(--tpe-rule); flex-wrap: wrap;
}
.tpe-prev-setlabel .tpe-k {
    font-size: .64em; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    color: var(--tpe-ink-faint);
}
.tpe-prev-setlabel h6 { margin: 0; font-size: .84em; font-weight: 700; line-height: 1.3; }
.tpe-prev-lane { display: flex; gap: .45em; align-items: flex-start; }
.tpe-prev-lane + .tpe-prev-lane { margin-top: .55em; }
.tpe-prev-lane-b { flex: 1 1 auto; min-width: 0; }
.tpe-prev-mark {
    flex: 0 0 auto; width: 1.3em; height: 1.3em; border-radius: .35em; display: grid; place-items: center;
    font-size: .7em; font-weight: 700; margin-top: .15em;
}
.tpe-prev-lb {
    font-size: .62em; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; margin: 0 0 .12em;
}
/* The preview has to be honest about line breaks the author typed, and the
   teaching view now keeps them too. */
.tpe-prev-say, .tpe-prev-txt, .tpe-prev-note p, .tpe-prev-setup p { white-space: pre-wrap; }
.tpe-prev-say { font-family: var(--tpe-serif); font-size: .98em; line-height: 1.36; margin: 0; }
.tpe-prev-say + .tpe-prev-say { margin-top: .35em; padding-top: .35em; border-top: 1px dashed var(--tpe-rule); }
.tpe-prev-txt { font-size: .76em; line-height: 1.45; color: var(--tpe-ink-soft); margin: 0; }
.tpe-prev-note {
    background: var(--tpe-note-wash); border: 1px solid var(--tpe-note); border-radius: .5em;
    padding: .5em .65em; margin-bottom: .6em;
}
.tpe-prev-note p { font-size: .76em; line-height: 1.45; margin: 0; }
.tpe-prev-note .tpe-eyebrow { font-size: .6em; color: var(--tpe-note); margin-bottom: .2em; }
.tpe-prev-goals { background: var(--tpe-teacher-wash); border-color: var(--tpe-teacher); }
.tpe-prev-goals .tpe-eyebrow { color: var(--tpe-teacher); }
.tpe-prev-goals ul {
    margin: 0; padding-left: 1.1em; font-size: .74em; line-height: 1.45;
    display: flex; flex-direction: column; gap: .25em;
}
.tpe-prev-chips { display: flex; flex-wrap: wrap; gap: .3em; margin-bottom: .7em; }
.tpe-prev-chips span {
    font-size: .72em; font-weight: 650; border: 1px solid var(--tpe-note); color: var(--tpe-note);
    border-radius: .35em; padding: .1em .45em;
}
.tpe-prev-setup {
    background: var(--tpe-do-wash); border-left: 3px solid var(--tpe-do); border-radius: .45em;
    padding: .5em .65em; margin-bottom: .6em; text-align: left;
}
.tpe-prev-setup p { font-size: .76em; line-height: 1.45; margin: 0; }
.tpe-prev-actions {
    display: grid; grid-template-columns: 1.6em 1fr 1.15fr 1.15fr 1.6em; gap: .28em;
    padding: .6em .75em; border-top: 1px solid var(--tpe-rule);
}
.tpe-prev-actions-one { grid-template-columns: 1fr; }
.tpe-prev-actions span {
    min-height: 2.2em; border-radius: .5em; border: 1.5px solid; display: grid; place-items: center;
    font-size: .66em; font-weight: 700; text-align: center; padding: .2em;
}
.tpe-pa-nav { border-color: var(--tpe-rule); color: var(--tpe-ink-faint); }
.tpe-pa-skip { background: var(--tpe-panel-2); border-color: var(--tpe-rule); color: var(--tpe-ink-faint); }
.tpe-pa-help { background: var(--tpe-note-wash); border-color: var(--tpe-note); color: var(--tpe-note); }
.tpe-pa-learn { background: var(--tpe-student); border-color: var(--tpe-student); color: #fff; }
.tpe-prev-hint { font-size: .72em; color: var(--tpe-ink-faint); text-align: center; padding: .7em .5em 0; margin: 0; }
.tpe-tok { color: var(--tpe-teacher); font-size: .82em; font-weight: 600; font-family: inherit; }

/* ---------- toast ---------- */
.tpe-toast {
    position: absolute; bottom: 1.1em; left: 50%; transform: translateX(-50%) translateY(8px);
    background: var(--tpe-ink); color: var(--tpe-panel); font-size: .85em; font-weight: 650;
    padding: .6em 1.1em; border-radius: 999px; box-shadow: var(--tpe-shadow);
    opacity: 0; pointer-events: none; z-index: 50; display: flex; align-items: center; gap: .7em;
    transition: opacity .18s ease, transform .18s ease;
}
.tpe-toast[data-open="true"] { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.tpe-toast button {
    font: inherit; font-size: .9em; font-weight: 700; border: 0; background: transparent;
    color: var(--tpe-panel); text-decoration: underline; cursor: pointer; padding: 0;
}

/* ---------- narrower desktops ---------- */
@media (max-width: 1280px) {
    .tpe-pane-prev { flex-basis: 280px; }
    .tpe-canvas { padding: 1.1em 1.3em 3em; }
}
@media (max-width: 1080px) {
    .tpe-pane-prev { display: none; }
}
@media (max-width: 860px) {
    .tpe-pane-nav { display: none; }
}

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