/* ================================================================
   StudentOS — patches27.css
   1.  Worksheet — Table block
   2.  Worksheet — Callout block
   3.  Worksheet — Flashcard block
   4.  Worksheet — Quick Calculator block
   5.  Worksheet — Countdown Timer block
   6.  Attendance — 30-day heat strip & streak badge
   ================================================================ */

/* ================================================================
   1.  TABLE BLOCK
   ================================================================ */

.p27-table-block {}

.p27-table-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.p27-table-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 11px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: var(--glass-hover);
    color: var(--text-muted);
    font-size: .72rem;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .12s, color .12s, background .12s;
}
.p27-table-btn:hover { border-color: var(--accent); color: var(--text-main); }
.p27-table-btn.active { background: color-mix(in srgb, var(--accent) 18%, transparent); border-color: var(--accent); color: var(--accent); }

.p27-table-wrap {
    overflow-x: auto;
    border-radius: 9px;
    border: 1px solid var(--glass-border);
}
.p27-table-wrap::-webkit-scrollbar { height: 4px; }
.p27-table-wrap::-webkit-scrollbar-track { background: transparent; }
.p27-table-wrap::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 99px; }

.p27-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 200px;
    table-layout: fixed;
}

.p27-table-th,
.p27-table-td {
    border: 1px solid var(--glass-border);
    padding: 0;
    min-width: 80px;
}
.p27-table-th {
    background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.p27-table-td {
    background: var(--glass-panel);
}
.p27-table-th:hover, .p27-table-td:hover { background: var(--glass-hover); }

.p27-table-cell-inp {
    width: 100%;
    padding: 6px 8px;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-family: inherit;
    font-size: .78rem;
    display: block;
}
.p27-table-th .p27-table-cell-inp {
    font-weight: 700;
    color: var(--accent);
}

.p27-table-del-cell {
    width: 24px;
    min-width: 24px;
    border: none !important;
    padding: 0;
    background: transparent !important;
    text-align: center;
}
.p27-table-del-row-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: .65rem;
    opacity: 0;
    transition: opacity .12s, color .12s;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.p27-table tr:hover .p27-table-del-row-btn { opacity: .55; }
.p27-table-del-row-btn:hover { opacity: 1 !important; color: #f87171; }

.p27-table-del-col-strip {
    display: flex;
}
.p27-table-del-col-btn {
    flex: 1;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: .6rem;
    opacity: 0;
    transition: opacity .12s, color .12s;
    padding: 3px;
    text-align: center;
}
.p27-table-wrap:hover .p27-table-del-col-btn { opacity: .45; }
.p27-table-del-col-btn:hover { opacity: 1 !important; color: #f87171; }

/* ================================================================
   2.  CALLOUT BLOCK
   ================================================================ */

.p27-callout-block {
    border-left: 3px solid var(--p27c, var(--accent));
    background: color-mix(in srgb, var(--p27c, var(--accent)) 8%, var(--glass-panel));
    border-radius: 10px;
}
.p27-callout-hdr {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
.p27-callout-icon {
    color: var(--p27c, var(--accent));
    font-size: .9rem;
    flex-shrink: 0;
}
.p27-callout-label {
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--p27c, var(--accent));
    flex: 1;
}
.p27-callout-variant-sel {
    padding: 3px 7px;
    border-radius: 7px;
    border: 1px solid var(--glass-border);
    background: var(--glass-hover);
    color: var(--text-muted);
    font-size: .68rem;
    cursor: pointer;
    font-family: inherit;
    outline: none;
}
.p27-callout-textarea {
    width: 100%;
    min-height: 52px;
    resize: vertical;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-family: inherit;
    font-size: .83rem;
    line-height: 1.6;
    padding: 0;
    display: block;
}
.p27-callout-textarea::placeholder { color: var(--text-muted); opacity: .6; }

/* ================================================================
   3.  FLASHCARD BLOCK
   ================================================================ */

.p27-fc-block {}

.p27-fc-card-area {
    perspective: 900px;
    cursor: pointer;
    margin-bottom: 10px;
    user-select: none;
}
.p27-fc-card-inner {
    position: relative;
    transform-style: preserve-3d;
    transition: transform .42s cubic-bezier(.4, 0, .2, 1);
    border-radius: 12px;
    min-height: 130px;
}
.p27-fc-card-inner.flipped { transform: rotateY(180deg); }

.p27-fc-card-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 12px;
    padding: 14px 16px 12px;
    border: 1px solid var(--glass-border);
    background: var(--glass-panel);
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 130px;
}
.p27-fc-back {
    transform: rotateY(180deg);
    background: color-mix(in srgb, var(--accent) 10%, var(--glass-panel));
    border-color: color-mix(in srgb, var(--accent) 30%, transparent);
}

/* Static (not flipped) fallback — absolute positioning can cause zero height */
.p27-fc-card-area:not(.has-card) .p27-fc-card-inner { position: static; }

.p27-fc-side-label {
    font-size: .58rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-muted);
    flex-shrink: 0;
}
.p27-fc-side-label.back { color: var(--accent); }

.p27-fc-textarea {
    flex: 1;
    width: 100%;
    min-height: 60px;
    resize: none;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-family: inherit;
    font-size: .85rem;
    line-height: 1.55;
    padding: 0;
    cursor: text;
}
.p27-fc-textarea::placeholder { color: var(--text-muted); opacity: .55; }

.p27-fc-empty {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--text-muted);
    font-size: .8rem;
    justify-content: center;
    padding: 20px;
}

.p27-fc-nav {
    display: flex;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
}
.p27-fc-counter {
    font-size: .7rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    min-width: 48px;
    text-align: center;
}
.p27-fc-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: var(--glass-hover);
    color: var(--text-muted);
    font-size: .72rem;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .12s, color .12s, background .12s;
}
.p27-fc-nav-btn:hover { border-color: var(--accent); color: var(--text-main); }
.p27-fc-nav-btn.flip {
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    border-color: color-mix(in srgb, var(--accent) 40%, transparent);
    color: var(--accent);
}
.p27-fc-nav-btn.flip:hover { background: color-mix(in srgb, var(--accent) 25%, transparent); }
.p27-fc-nav-btn.add {
    margin-left: auto;
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}
.p27-fc-nav-btn.add:hover { background: color-mix(in srgb, var(--accent) 18%, transparent); }
.p27-fc-nav-btn.del { color: var(--text-muted); }
.p27-fc-nav-btn.del:hover { color: #f87171; border-color: #f87171; background: rgba(239,68,68,.1); }

/* ================================================================
   4.  QUICK CALCULATOR BLOCK
   ================================================================ */

.p27-calc-block {}

.p27-calc-hdr {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: .72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: 10px;
}
.p27-calc-hdr i { color: var(--accent); font-size: .85rem; }

.p27-calc-lines { display: flex; flex-direction: column; gap: 4px; }

.p27-calc-row {
    display: flex;
    align-items: center;
    gap: 7px;
    min-height: 34px;
}
.p27-calc-inp {
    flex: 1;
    padding: 5px 10px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: var(--glass-hover);
    color: var(--text-main);
    font-size: .8rem;
    font-family: 'JetBrains Mono', monospace;
    outline: none;
    transition: border-color .12s;
    min-width: 0;
}
.p27-calc-inp:focus { border-color: color-mix(in srgb, var(--accent) 55%, transparent); }
.p27-calc-inp::placeholder { color: var(--text-muted); font-family: inherit; opacity: .6; }

.p27-calc-eq {
    font-size: .78rem;
    color: var(--text-muted);
    font-weight: 600;
    flex-shrink: 0;
    min-width: 12px;
    text-align: center;
}
.p27-calc-result {
    min-width: 90px;
    max-width: 160px;
    font-size: .82rem;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    color: var(--text-muted);
    text-align: right;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 5px 8px;
    border-radius: 7px;
    border: 1px solid transparent;
    transition: color .1s, background .1s, border-color .1s;
}
.p27-calc-result.has-val {
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    border-color: color-mix(in srgb, var(--accent) 25%, transparent);
}

.p27-calc-del-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: .65rem;
    opacity: .4;
    padding: 4px 6px;
    border-radius: 5px;
    transition: opacity .1s, color .1s;
    flex-shrink: 0;
}
.p27-calc-row:hover .p27-calc-del-btn { opacity: .7; }
.p27-calc-del-btn:hover { opacity: 1 !important; color: #f87171; }

.p27-calc-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 8px;
    padding: 4px 11px;
    border-radius: 8px;
    border: 1px dashed var(--glass-border);
    background: transparent;
    color: var(--text-muted);
    font-size: .72rem;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .12s, color .12s;
}
.p27-calc-add-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ================================================================
   5.  COUNTDOWN TIMER BLOCK
   ================================================================ */

.p27-timer-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 18px 16px;
}

.p27-timer-label-inp {
    width: 100%;
    text-align: center;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--glass-border);
    outline: none;
    color: var(--text-main);
    font-family: inherit;
    font-size: .88rem;
    font-weight: 600;
    padding: 2px 6px 6px;
    letter-spacing: .02em;
    transition: border-color .12s;
}
.p27-timer-label-inp:focus { border-bottom-color: var(--accent); }
.p27-timer-label-inp::placeholder { color: var(--text-muted); font-weight: 400; }

.p27-timer-ring-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.p27-timer-ring {
    display: block;
    transform: rotate(-90deg);
    overflow: visible;
}
.p27-timer-ring-time {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-main);
    letter-spacing: -.02em;
    pointer-events: none;
}

.p27-timer-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}
.p27-timer-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 18px;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    background: var(--glass-hover);
    color: var(--text-main);
    font-size: .8rem;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background .12s, border-color .12s;
}
.p27-timer-btn.start {
    background: color-mix(in srgb, var(--accent) 18%, transparent);
    border-color: color-mix(in srgb, var(--accent) 45%, transparent);
    color: var(--accent);
}
.p27-timer-btn.start:hover { background: color-mix(in srgb, var(--accent) 28%, transparent); }
.p27-timer-btn.start.active {
    background: color-mix(in srgb, var(--accent) 22%, transparent);
    border-color: var(--accent);
}
.p27-timer-btn.reset:hover { border-color: var(--accent); }

.p27-timer-presets {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
    justify-content: center;
}
.p27-timer-preset-btn {
    padding: 3px 10px;
    border-radius: 99px;
    border: 1px solid var(--glass-border);
    background: var(--glass-hover);
    color: var(--text-muted);
    font-size: .68rem;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    cursor: pointer;
    transition: border-color .12s, color .12s, background .12s;
}
.p27-timer-preset-btn:hover { border-color: var(--accent); color: var(--text-main); }
.p27-timer-preset-btn.active {
    background: color-mix(in srgb, var(--accent) 16%, transparent);
    border-color: var(--accent);
    color: var(--accent);
}

/* ================================================================
   6.  ATTENDANCE — 30-DAY HEAT STRIP & STREAK BADGE
   ================================================================ */

.p27-heat-strip {
    display: flex;
    gap: 2px;
    padding: 8px 0 2px;
    flex-wrap: nowrap;
    overflow: hidden;
    align-items: center;
    justify-content: space-between;
}

.p27-heat-dot {
    flex: 1;
    min-width: 0;
    aspect-ratio: 1;
    border-radius: 3px;
    background: var(--glass-border);
    opacity: .5;
    max-width: 14px;
    transition: transform .1s;
    cursor: default;
}
.p27-heat-dot:hover { transform: scaleY(1.5); opacity: 1; z-index: 1; }
.p27-heat-dot.att { background: rgba(34, 197, 94, .75); opacity: 1; }
.p27-heat-dot.miss { background: rgba(239, 68, 68, .65); opacity: 1; }

.p27-streak-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: .68rem;
    font-weight: 700;
    padding: 2px 9px;
    border-radius: 99px;
    border: 1px solid rgba(34, 197, 94, .35);
    background: rgba(34, 197, 94, .1);
    color: #22c55e;
    margin-left: 6px;
    flex-shrink: 0;
}
.p27-streak-badge.cold {
    border-color: var(--glass-border);
    background: var(--glass-hover);
    color: var(--text-muted);
}

.p27-today-btn {
    opacity: .7;
}
.p27-today-btn:hover {
    opacity: 1 !important;
    color: var(--accent) !important;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 600px) {
    .p27-fc-nav { gap: 4px; }
    .p27-fc-nav-btn { padding: 4px 8px; font-size: .68rem; }
    .p27-timer-block { padding: 14px 12px 12px; }
    .p27-calc-result { min-width: 64px; }
}