@font-face{font-family:DSEG7ClassicMini;src:url(/assets/DSEG7ClassicMini-Regular-5GDKDMxr.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}:root{font-family:Inter,system-ui,sans-serif;line-height:1.5;font-weight:400;color:#0f172a;background-color:#f8fafc;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--page-bg: #f8fafc;--page-warning-bg: #fff1f2;--surface: #ffffff;--surface-alt: #e2e8f0;--text-primary: #0f172a;--text-muted: #475569;--text-subtle: #64748b;--border: #e2e8f0;--accent: #2563eb;--accent-bg: #eff6ff;--accent-strong: #1d4ed8;--success: #16a34a;--slot-border: #cbd5f5;--clock-bg: #eef2f7;--clock-text: #0f172a;--clock-warning-text: #dc2626;--operator-text: #0f172a;--icon-color: #0f172a}.app[data-theme=dark]{--page-bg: #0b1220;--page-warning-bg: #1f1013;--surface: #101827;--surface-alt: #1f2937;--text-primary: #f8fafc;--text-muted: #cbd5f5;--text-subtle: #94a3b8;--border: #334155;--accent: #60a5fa;--accent-bg: #1e3a8a;--accent-strong: #93c5fd;--success: #22c55e;--slot-border: #334155;--clock-bg: #020617;--clock-text: #f8fafc;--clock-warning-text: #f87171;--operator-text: #f8fafc;--icon-color: #f8fafc}.app.solved{--clock-text: var(--success);--operator-text: var(--success)}.app.warning{--clock-text: var(--clock-warning-text);--operator-text: var(--clock-warning-text)}*{box-sizing:border-box}body{margin:0}button{font-family:inherit}.app{min-height:100vh;background:var(--page-bg);color:var(--text-primary);transition:border .2s ease,background .2s ease;border:6px solid transparent}.header{text-align:center;padding:2rem 1rem 1rem}.title{margin:0;font-size:clamp(1.6rem,5vw,2.4rem);letter-spacing:.08em;text-transform:uppercase}.time-display{font-size:clamp(2.5rem,5vw,4rem);font-weight:700;letter-spacing:.08em}.subtitle{margin-top:.4rem;color:var(--text-muted)}.header-actions{margin-top:1rem;display:flex;justify-content:center;align-items:center;gap:.6rem;flex-wrap:wrap}.nav{display:flex;gap:.6rem}.nav a{text-decoration:none;color:var(--text-muted);font-weight:600;padding:.4rem .8rem;border-radius:999px;background:var(--surface-alt)}.nav a.active{background:var(--accent);color:#fff}.main{display:grid;gap:2rem;grid-template-columns:minmax(0,1fr);padding:1rem 1.5rem 3rem;max-width:960px;margin:0 auto}.game-panel,.progress-panel{background:var(--surface);border-radius:18px;padding:1.5rem;box-shadow:0 20px 40px #0f172a14;overflow:hidden;border:3px solid transparent;transition:border-color .2s ease}.app.warning .game-panel{border-color:#ef4444}.digital-clock{display:inline-block;padding:.5rem 1rem;margin:0 auto 1.2rem;background:var(--clock-bg);color:var(--clock-text);border-radius:12px;font-family:DSEG7ClassicMini,Courier New,monospace;font-size:clamp(2rem,5vw,2.8rem);letter-spacing:.2rem;text-align:center;width:fit-content;box-shadow:inset 0 0 12px #f8fafc99;display:flex;gap:1.4rem;align-items:center;padding:.5rem 1.6rem;min-width:min(90vw,360px);justify-content:center}.clock-temp{font-size:.8em;letter-spacing:.12rem}.expression-meta{display:flex;justify-content:center;gap:.8rem;font-size:1rem;color:var(--clock-text);margin-bottom:.4rem}.app.warning .digital-clock{color:var(--clock-warning-text);box-shadow:inset 0 0 12px #ef444499}.app.solved .digital-clock{box-shadow:inset 0 0 12px #22c55e73}.game-panel{text-align:center;position:relative}.game-top{position:relative;display:flex;align-items:center;justify-content:center;margin-bottom:.8rem;min-height:2.8rem}.game-top-right{position:absolute;top:50%;transform:translateY(-50%);right:0}.expression-display{display:flex;flex-wrap:nowrap;justify-content:center;align-items:center;gap:.6rem;font-size:2.4rem;font-weight:600;padding-bottom:.2rem;max-width:100%}.expression-display.compact{font-size:2rem;flex-wrap:wrap;row-gap:.4rem}.digit-group{display:inline-flex;align-items:center;gap:.6rem;flex:0 0 auto}.slot.boundary{margin-right:.6rem}.digit.temp-start{margin-left:.4rem}.digit{padding:.2rem .1rem;color:var(--clock-text)}.app.warning .digit{color:var(--clock-warning-text)}.slot{min-width:3.2rem;min-height:3.2rem;border-radius:12px;border:2px dashed var(--slot-border);background:var(--surface-alt);color:var(--operator-text);font-size:1.4rem;font-weight:600;cursor:pointer}.slot.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent-strong)}.expression-preview{margin-top:1rem;text-align:center;font-size:1.2rem;color:var(--text-muted);word-break:break-all}.expression-raw{font-weight:600}.expression-evaluated{margin-top:.4rem;font-size:1.6rem;font-weight:700;color:var(--clock-text);letter-spacing:.05rem}.status{margin-top:.6rem;text-align:center;font-weight:600}.top-action{position:absolute;top:50%;transform:translateY(-50%);left:0}.hint-button{border:1px solid var(--border);background:var(--surface);color:var(--text-primary);width:2rem;height:2rem;border-radius:999px;font-weight:800;font-size:1.15rem;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.hint-button svg{width:1.2rem;height:1.2rem;display:block;stroke:currentColor}.hint-button:disabled{opacity:.5;cursor:not-allowed}.modal-backdrop{position:fixed;inset:0;background:#0f172a73;display:flex;align-items:center;justify-content:center;z-index:40}.modal-card{background:var(--surface);color:var(--text-primary);border-radius:16px;padding:1.4rem 1.6rem;width:min(90vw,360px);box-shadow:0 20px 40px #0f172a40}.share-textarea{width:100%;min-height:140px;margin-top:.8rem;border:1px solid var(--border);border-radius:12px;padding:.8rem;font-family:inherit;font-size:.95rem;background:var(--surface-alt);color:var(--text-primary);resize:none}.share-list{margin-top:.8rem;display:grid;gap:.6rem}.share-list-item{border:1px solid var(--border);background:var(--surface-alt);color:var(--text-primary);padding:.6rem .8rem;border-radius:12px;font-weight:600;cursor:pointer}.share-list-empty{text-align:center;color:var(--text-subtle);padding:.6rem 0}.modal-message{font-weight:600;text-align:center}.modal-actions{margin-top:1.2rem;display:flex;gap:.8rem;justify-content:center}.modal-button{border:1px solid var(--border);background:var(--surface-alt);color:var(--text-primary);padding:.5rem 1rem;border-radius:999px;font-weight:700;cursor:pointer}.modal-button.primary{background:var(--accent);color:#fff;border-color:transparent}.modal-button.success{background:var(--success);color:#fff;border-color:transparent}.copy-button{display:inline-flex;align-items:center;gap:.4rem}.copy-button svg{width:1rem;height:1rem;fill:currentColor;stroke:currentColor}.share-button{border:1px solid var(--border);background:var(--surface);color:var(--text-primary);padding:.3rem .7rem;border-radius:999px;font-weight:700;cursor:pointer;white-space:nowrap;border-color:color-mix(in srgb,var(--accent) 60%,var(--border));animation:shareGlow 1.6s ease-in-out infinite}@keyframes shareGlow{0%{box-shadow:0 0 #2563eb59}50%{box-shadow:0 0 0 6px #2563eb00}to{box-shadow:0 0 #2563eb00}}.countdown-badge{font-weight:700;color:var(--clock-warning-text);background:color-mix(in srgb,var(--clock-warning-text) 12%,transparent);padding:.3rem .6rem;border-radius:999px;margin-left:auto}.countdown-badge.success{color:var(--success);background:color-mix(in srgb,var(--success) 12%,transparent)}.status.success{color:var(--success)}.status.pending{color:var(--text-subtle)}.operator-pad{margin-top:1.2rem;display:flex;gap:.6rem;justify-content:center;flex-direction:column;align-items:center;background:var(--surface-alt);padding:.8rem;border-radius:16px;width:min(100%,420px);margin-left:auto;margin-right:auto;overflow:visible}.location-banner{position:fixed;top:.5rem;left:50%;transform:translate(-50%);z-index:50;display:flex;flex-direction:column;gap:.4rem;align-items:center;text-align:center;padding:.6rem .8rem;border-radius:12px;background:var(--surface-alt);box-shadow:0 12px 24px #0f172a33;width:min(90vw,420px)}.location-message{color:var(--text-muted);font-size:.95rem}.location-button{border:1px solid var(--border);background:var(--surface);color:var(--text-primary);border-radius:999px;padding:.3rem .8rem;font-weight:700;cursor:pointer}.app.has-location-banner{padding-top:3.4rem}.operator-row{display:grid;grid-template-columns:repeat(6,minmax(2.2rem,1fr));gap:.5rem;width:100%;align-items:center}.operator-button{padding:.7rem 0;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--operator-text);font-size:1.2rem;font-weight:600;cursor:pointer;min-width:2.2rem;box-shadow:0 6px 12px #0f172a14}.operator-spacer{width:100%;height:100%}@media(max-width:768px){.header{padding-top:1.2rem}.title{font-size:clamp(1.4rem,6vw,2rem)}.digital-clock{font-size:clamp(1.6rem,7vw,2.3rem);padding:.5rem 1rem;gap:1rem;min-width:min(95vw,320px)}.expression-display{font-size:clamp(1.6rem,6vw,2.2rem);gap:.4rem}.slot{min-width:2.6rem;min-height:2.6rem;font-size:1.2rem}.operator-pad{width:min(100%,360px);padding:.7rem}.operator-row{grid-template-columns:repeat(6,minmax(2rem,1fr))}.operator-button{font-size:1.05rem;min-width:2rem;padding:.55rem 0}.panel-controls{margin-top:.6rem;flex-wrap:nowrap;gap:.4rem}}@media(max-width:480px){.main{padding:.6rem 1rem 2rem}.game-panel,.progress-panel{padding:1.1rem}.digital-clock{min-width:min(98vw,300px);gap:.8rem}.expression-preview{font-size:1rem}.expression-evaluated{font-size:1.4rem}.expression-display{gap:.3rem}.slot{min-width:2.4rem;min-height:2.4rem;font-size:1.1rem}.operator-pad{width:min(100%,320px)}}.operator-button.utility{background:var(--surface);color:var(--operator-text)}.operator-button:disabled{opacity:.5;cursor:not-allowed}.progress-panel h2{text-align:center;margin-bottom:1rem}.progress-header{display:flex;align-items:center;justify-content:space-between;gap:.8rem;margin-bottom:1rem}.progress-header h2{margin:0}.progress-hint{margin-top:.8rem;text-align:center;color:var(--text-subtle)}.progress-clock{display:flex;justify-content:center}.stats{margin-top:1.2rem;display:grid;gap:.6rem}.stats div{display:flex;justify-content:space-between;background:var(--surface-alt);padding:.6rem .8rem;border-radius:12px}.stat-label{color:var(--text-subtle);font-weight:600}.stat-value{font-weight:700}.theme-toggle{border:1px solid var(--border);background:var(--surface);color:var(--icon-color);width:2.5rem;height:2.5rem;padding:.4rem;border-radius:999px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.theme-toggle svg{width:1.2rem;height:1.2rem;display:block;fill:currentColor;stroke:currentColor}.unit-toggle svg{width:1.2rem;height:1.2rem;display:block;fill:currentColor;stroke:currentColor}.unit-toggle{border:1px solid var(--border);background:var(--surface);color:var(--text-primary);border-radius:999px;padding:0 .8rem;height:2.5rem;font-weight:700;cursor:pointer}.panel-controls{display:flex;gap:.4rem;justify-content:center;flex-wrap:wrap;margin:0 auto;align-items:center}