/* Interactive styling for Kids Math, Speedcubing, Coding for Kids, and Study With Us */
.disc-hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
@media(max-width:860px){.disc-hero-grid{grid-template-columns:1fr}}

.disc-widget{background:#fff;border:2px solid var(--line,#e2e8f0);border-radius:16px;padding:24px;box-shadow:0 10px 25px -5px rgba(0,0,0,.06);position:relative;overflow:hidden}
.disc-widget-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;border-bottom:1px solid var(--line,#e2e8f0);padding-bottom:12px}
.disc-widget-title{font-size:18px;font-weight:700;margin:0;display:flex;align-items:center;gap:8px}
.disc-badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.03em;text-transform:uppercase}
.disc-badge-math{background:#e0f2fe;color:#0369a1}
.disc-badge-cube{background:#fef3c7;color:#b45309}
.disc-badge-code{background:#ede9fe;color:#6d28d9}
.disc-badge-global{background:#dcfce7;color:#15803d}

/* Speed Math Challenge Game */
.math-challenge-box{text-align:center;padding:20px;background:var(--c-maths-soft,#f0fdf4);border-radius:14px;margin-bottom:16px}
.math-streak{font-size:14px;font-weight:700;color:#16a34a;margin-bottom:8px}
.math-prompt{font-size:38px;font-weight:800;font-family:var(--sans,system-ui);color:var(--ink,#0f172a);margin:8px 0 16px;letter-spacing:1px}
.math-input-row{display:flex;justify-content:center;gap:8px;max-width:320px;margin:0 auto}
.math-input{font-size:24px;font-weight:700;text-align:center;padding:10px 14px;border:2px solid var(--line,#cbd5e1);border-radius:10px;width:140px;outline:none;transition:border-color .15s}
.math-input:focus{border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.2)}
.math-feedback{margin-top:12px;font-size:15px;font-weight:700;min-height:22px}
.math-feedback.correct{color:#16a34a}
.math-feedback.wrong{color:#dc2626}
.math-modes{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:14px}
.math-mode-btn{padding:6px 12px;border-radius:8px;font-size:13px;font-weight:600;border:1px solid var(--line,#cbd5e1);background:#fff;cursor:pointer;transition:all .15s}
.math-mode-btn.active{background:#0284c7;color:#fff;border-color:#0284c7}

/* Step-by-step Interactive Trick Visualizer */
.trick-card{border:1px solid var(--line,#e2e8f0);border-radius:12px;padding:18px;margin-bottom:16px;background:#fff;transition:transform .15s,box-shadow .15s}
.trick-card:hover{box-shadow:0 6px 18px rgba(0,0,0,.05)}
.trick-card h3{margin:0 0 8px;font-size:18px;color:var(--ink,#0f172a);display:flex;align-items:center;gap:8px}
.trick-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:14px}
.trick-step{background:#f8fafc;border-left:3px solid #0284c7;padding:10px 14px;border-radius:0 8px 8px 0}
.trick-step b{display:block;font-size:12px;text-transform:uppercase;color:#64748b;margin-bottom:4px}
.trick-step code{font-size:16px;font-weight:700;color:#0f172a}

/* Interactive Speedcubing Timer */
.timer-container{text-align:center;background:#0f172a;color:#fff;border-radius:14px;padding:28px 20px;user-select:none;position:relative}
.timer-scramble{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:15px;color:#94a3b8;letter-spacing:.05em;margin-bottom:20px;min-height:42px;display:flex;align-items:center;justify-content:center}
.timer-digits{font-size:64px;font-weight:900;font-variant-numeric:tabular-nums;font-family:ui-monospace,monospace;letter-spacing:-.02em;margin:10px 0;transition:color .15s}
.timer-digits.ready{color:#22c55e}
.timer-digits.primed{color:#eab308}
.timer-hint{font-size:13px;color:#64748b}
.timer-splits{display:flex;justify-content:center;gap:12px;margin-top:16px;flex-wrap:wrap}
.timer-split-pill{background:#1e293b;padding:4px 10px;border-radius:6px;font-size:12px;color:#cbd5e1}
.timer-stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;background:#1e293b;border-radius:8px;padding:12px;margin-top:20px;text-align:center}
.timer-stat-val{font-size:18px;font-weight:800;color:#38bdf8}
.timer-stat-lbl{font-size:11px;color:#94a3b8;text-transform:uppercase}

/* Cube Selector & Quiz */
.quiz-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.quiz-option-card{border:2px solid var(--line,#e2e8f0);border-radius:12px;padding:16px;cursor:pointer;transition:all .15s;background:#fff}
.quiz-option-card:hover{border-color:#f59e0b;transform:translateY(-2px)}
.quiz-option-card.selected{border-color:#d97706;background:#fffbeb}

/* Global Study Circle Timezone Widget */
.tz-selector-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#f1f5f9;border-radius:10px;padding:10px 14px;margin-bottom:18px}
.tz-select{padding:8px 12px;border-radius:8px;border:1px solid #cbd5e1;font-weight:600;font-size:14px;outline:none;background:#fff}
.tz-schedule-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.tz-session-card{border:1px solid var(--line,#e2e8f0);border-radius:12px;padding:18px;background:#fff;position:relative}
.tz-session-card b{font-size:16px;display:block;margin-bottom:6px}
.tz-time-highlight{display:inline-flex;align-items:center;gap:6px;background:#ecfdf5;color:#047857;font-weight:700;padding:4px 10px;border-radius:6px;font-size:14px;margin-bottom:10px}

/* Code Preview & Sandboxes */
.code-sandbox-bar{display:flex;justify-content:space-between;align-items:center;background:#1e293b;color:#e2e8f0;padding:8px 14px;border-radius:8px 8px 0 0;font-size:13px;font-weight:700}
.code-sandbox-actions{display:flex;gap:6px}
.code-sandbox-btn{background:#3b82f6;color:#fff;border:none;border-radius:6px;padding:5px 12px;font-size:12px;font-weight:700;cursor:pointer;transition:background .15s}
.code-sandbox-btn:hover{background:#2563eb}
.code-output-box{background:#0f172a;color:#a5f3fc;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;padding:12px 14px;border-radius:0 0 8px 8px;border-top:1px solid #334155;min-height:50px;white-space:pre-wrap}

/* Value Props & Trust Badges */
.trust-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:28px 0}
.trust-item{display:flex;align-items:flex-start;gap:12px;background:#f8fafc;padding:14px 16px;border-radius:10px}
.trust-item-icon{font-size:24px;line-height:1}
.trust-item b{display:block;font-size:14px;color:var(--ink,#0f172a)}
.trust-item span{font-size:12.5px;color:#64748b;line-height:1.4}