/* ==========================================================================
   Sophicly Build-the-Tower — v3.7.0 styles
   Matches the Keystone game shell: dark purple→violet root card, teal accent,
   shared btn tokens. Solid floor = teal/violet; cracked = amber; collapse =
   topple keyframes.
   ========================================================================== */

.sct-widget {
    --sct-bg-from:   #2c003e;
    --sct-bg-to:     #5333ed;
    --sct-surface:   rgba(20, 6, 36, 0.72);
    --sct-surface-2: rgba(255, 255, 255, 0.04);
    --sct-border:    rgba(255, 255, 255, 0.08);
    --sct-border-on: rgba(81, 218, 207, 0.35);
    --sct-text:      #f5f0ff;
    --sct-muted:     rgba(245, 240, 255, 0.45);
    --sct-accent:    #51dacf;
    --sct-success:   #1CD991;
    --sct-amber:     #f5a623;
    --sct-danger:    #ff6b6b;

    display: block;
    width: 100%;
    margin: 24px auto;
    max-width: 720px;
    font-family: 'Proxima Soft Complete', 'Inter', system-ui, sans-serif;
}

.sct-root {
    background: linear-gradient(140deg, var(--sct-bg-from) 0%, var(--sct-bg-to) 100%);
    border-radius: 24px;
    padding: clamp(20px, 4vw, 32px);
    color: var(--sct-text);
    display: flex;
    flex-direction: column;
    gap: clamp(16px, 3vw, 22px);
    position: relative;
    overflow: hidden;
    box-shadow: 0 18px 52px -12px rgba(44, 0, 62, 0.4);
}

.sct-loading,
.sct-settling {
    padding: 40px 0;
    text-align: center;
    color: var(--sct-muted);
    font-style: italic;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.sct-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.sct-title {
    font-size: clamp(0.78rem, 2vw, 0.85rem);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--sct-accent);
    font-weight: 600;
}

.sct-counter {
    font-size: 0.75rem;
    color: var(--sct-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 500;
}

.sct-intro {
    font-size: clamp(0.9rem, 2.2vw, 1rem);
    line-height: 1.6;
    color: var(--sct-muted);
    margin: 0;
}

/* ── Stage: tower + panel ──────────────────────────────────────────────── */
.sct-stage {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: clamp(18px, 3vw, 28px);
    align-items: end;
}

@media (max-width: 560px) {
    .sct-stage {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* ── Tower ──────────────────────────────────────────────────────────────── */
.sct-tower {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sct-tower-stack {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
    perspective: 800px;
}

.sct-floor {
    position: relative;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.5s ease;
    transform-origin: bottom center;
}

.sct-floor-tag {
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Empty slot — not yet reached. */
.sct-floor--empty {
    background: var(--sct-surface-2);
    border: 1px dashed var(--sct-border);
    color: var(--sct-muted);
}

/* Under construction — current floor. */
.sct-floor--building {
    background: rgba(81, 218, 207, 0.08);
    border: 1.5px solid var(--sct-accent);
    color: var(--sct-accent);
    animation: sct-pulse 1.5s ease-in-out infinite;
}

@keyframes sct-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(81, 218, 207, 0.30); }
    50%      { box-shadow: 0 0 0 7px rgba(81, 218, 207, 0); }
}

/* Solid floor — mastered. */
.sct-floor--solid {
    background: linear-gradient(135deg, var(--sct-accent) 0%, #3aa9a0 100%);
    color: var(--sct-bg-from);
    box-shadow: 0 4px 14px rgba(81, 218, 207, 0.22);
}

/* Cracked floor — wrong, built on anyway. */
.sct-floor--cracked {
    background: linear-gradient(135deg, #f7b94e 0%, #e08a1e 100%);
    color: #5a3a00;
    box-shadow: 0 4px 14px rgba(224, 138, 30, 0.25);
}

.sct-floor-crack {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(115deg, transparent 48%, rgba(90, 58, 0, 0.55) 49%, transparent 51%),
        linear-gradient(75deg, transparent 60%, rgba(90, 58, 0, 0.4) 61%, transparent 63%);
    border-radius: 12px;
}

/* Collapse — cracked floors and everything resting on the fault topple. */
.sct-tower--collapsed .sct-floor--solid {
    transform: translateY(6px);
}

.sct-floor--topple {
    animation: sct-topple 0.9s cubic-bezier(0.6, 0, 0.8, 0.4) forwards;
}

@keyframes sct-topple {
    0%   { transform: rotate(0) translate(0, 0); opacity: 1; }
    100% { transform: rotate(-14deg) translate(-40px, 60px); opacity: 0; }
}

/* ── Physics collapse arena (Matter.js) ─────────────────────────────────── */
.sct-collapse-arena {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: auto;   /* catch drags on the fallen blocks */
    touch-action: none;     /* let Matter handle touch without page-scroll fights */
    border-radius: 24px;
    z-index: 1;
}

.sct-cblock {
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    will-change: transform;
    cursor: grab;
}

.sct-cblock:active {
    cursor: grabbing;
}

/* Keep header + question above the tumbling blocks. */
.sct-header,
.sct-stage {
    position: relative;
    z-index: 2;
}

/* Collapse view: tall card so blocks have room to fall + tumble. */
.sct-root--collapsing {
    min-height: 440px;
}

/* Floating results plate above the draggable arena. Only the plate itself
   catches pointer events, so the rest of the card stays draggable. */
.sct-collapse-results {
    position: absolute;
    top: 58px;
    right: 28px;
    max-width: 340px;
    z-index: 2;
    pointer-events: none;
}

.sct-collapse-results .sct-results,
.sct-collapse-results .sct-settling {
    pointer-events: auto;
}

@media (max-width: 560px) {
    .sct-collapse-results {
        left: 16px;
        right: 16px;
        max-width: none;
    }
}

/* ── Panel ──────────────────────────────────────────────────────────────── */
.sct-panel {
    min-height: 210px;
}

.sct-q-tag {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--sct-accent);
}

.sct-q-prompt {
    font-size: clamp(1.02rem, 2.5vw, 1.2rem);
    font-weight: 600;
    line-height: 1.45;
    margin: 6px 0 16px;
    color: var(--sct-text);
}

.sct-opts {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sct-opt {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    width: 100%;
    text-align: left;
    padding: 13px 15px;
    border-radius: 14px;
    border: 1px solid var(--sct-border);
    background: var(--sct-surface-2);
    font-size: 0.95rem;
    line-height: 1.45;
    color: var(--sct-text);
    cursor: pointer;
    transition: border-color 0.18s ease, background 0.18s ease, transform 0.12s ease;
}

.sct-opt:hover:not(:disabled) {
    border-color: var(--sct-border-on);
    background: rgba(255, 255, 255, 0.06);
}

.sct-opt:active:not(:disabled) { transform: scale(0.99); }
.sct-opt:disabled { cursor: default; }

.sct-opt-mark {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    margin-top: 1px;
    border-radius: 50%;
    border: 2px solid var(--sct-muted);
    transition: all 0.18s ease;
}

.sct-opt--right {
    border-color: var(--sct-accent);
    background: rgba(81, 218, 207, 0.10);
}
.sct-opt--right .sct-opt-mark {
    border-color: var(--sct-accent);
    background: var(--sct-accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='none' stroke='%232c003e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='M2.5 6.2l2.2 2.2L9.5 3.6'/%3E%3C/svg%3E") center/12px no-repeat;
}

.sct-opt--wrong {
    border-color: var(--sct-amber);
    background: rgba(245, 166, 35, 0.10);
}
.sct-opt--wrong .sct-opt-mark {
    border-color: var(--sct-amber);
    background: var(--sct-amber);
}

.sct-opt--muted { opacity: 0.45; }

/* ── Feedback ───────────────────────────────────────────────────────────── */
.sct-feedback {
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 14px;
    border-left: 3px solid var(--sct-accent);
    background: var(--sct-surface);
}

.sct-feedback--cracked {
    border-left-color: var(--sct-amber);
}

.sct-feedback-head {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--sct-accent);
}
.sct-feedback--cracked .sct-feedback-head { color: var(--sct-amber); }

.sct-feedback-gloss {
    font-size: 0.92rem;
    line-height: 1.55;
    margin: 7px 0 14px;
    color: var(--sct-text);
    opacity: 0.92;
}

/* ── Shared buttons (mirror keystone .sck-btn) ──────────────────────────── */
.sct-btn {
    font-family: inherit;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 12px 24px;
    border-radius: 40px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background 0.18s, border-color 0.18s, color 0.18s;
    font-weight: 600;
    min-height: 44px;
}

.sct-btn--primary {
    background: var(--sct-accent);
    color: var(--sct-bg-from);
    border-color: var(--sct-accent);
}
.sct-btn--primary:hover {
    background: #7DF9E9;
    border-color: #7DF9E9;
}

.sct-btn--ghost {
    background: transparent;
    color: var(--sct-text);
    border-color: var(--sct-border);
}
.sct-btn--ghost:hover {
    border-color: var(--sct-accent);
    color: var(--sct-accent);
}

/* ── Results ────────────────────────────────────────────────────────────── */
.sct-results {
    position: relative;
    z-index: 3;
    animation: sct-fade-up 0.4s ease both;
    /* Readable plate so the text stays legible over the tumbling blocks. */
    background: rgba(26, 6, 46, 0.66);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 18px 20px;
}

.sct-results-note {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sct-accent);
    margin-bottom: 8px;
}

@keyframes sct-fade-up {
    0%   { opacity: 0; transform: translateY(8px); }
    100% { opacity: 1; transform: translateY(0); }
}

.sct-results-head {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    font-weight: 700;
    line-height: 1.25;
    color: var(--sct-text);
}

.sct-results-sub {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--sct-muted);
    margin: 8px 0 18px;
}

.sct-results-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.sct-score {
    font-size: 1rem;
    font-weight: 700;
    color: var(--sct-text);
}

.sct-grade-chip {
    font-size: 0.85rem;
    font-weight: 800;
    color: #fff;
    padding: 7px 16px;
    border-radius: 999px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.25);
}

.sct-grade-chip--dark { color: #1b1430; }