@font-face{font-family:Kota;src:url('../assets/kota-book.woff')}@font-face{font-family:Kota;src:url('../assets/kota-demi.woff');font-weight:700}
:root{--ink:#173844;--muted:#617b84;--line:#d7e7ec;--paper:#f4fbff;--cyan:#168ca5;--navy:#0c5969;--green:#2f9f7b;--yellow:#f8c94b;--coral:#f17867;--purple:#7968c5}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Kota,system-ui,sans-serif;color:var(--ink);background:linear-gradient(180deg,#f8fcff,#edf8fb)}button,select{font:inherit}button{touch-action:manipulation}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px clamp(18px,3.4vw,54px);background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.brand-wrap,.header-tools{display:flex;align-items:center;gap:12px}.back-button{text-decoration:none;color:#fff;background:var(--navy);width:46px;height:46px;border-radius:16px;display:grid;place-items:center;font-size:34px;line-height:1}.brand-icon{width:50px;height:50px;border-radius:16px;background:#dff7ff;display:grid;place-items:center;font-size:29px}.brand h1{font-size:24px;margin:0}.brand p{margin:2px 0 0;color:var(--muted);font-size:13px}.tool-button,.icon-button{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:15px;padding:11px 14px;font-weight:700;cursor:pointer}.icon-button{width:44px;padding:11px 0}.teacher{background:#eef8f5}.workspace{width:min(1500px,100%);margin:0 auto;padding:22px clamp(18px,3.5vw,54px) 30px}.mission-card,.board-card,.program-card,.feedback{background:#fff;border:1px solid var(--line);box-shadow:0 12px 32px rgba(31,78,91,.09);border-radius:26px}.mission-card{padding:20px 24px;margin-bottom:20px}.mission-top,.mission-copy,.program-head,.board-head,.sequence-label{display:flex;justify-content:space-between;gap:20px;align-items:center}.badges{display:flex;gap:8px;flex-wrap:wrap}.badges span,.score{background:#eef7f9;color:#35616c;padding:7px 11px;border-radius:999px;font-size:13px;font-weight:700}.score{display:flex;gap:8px;align-items:center;background:#fff5cb;color:#775a06}.score strong{font-size:20px}.eyebrow{font-weight:700;letter-spacing:.12em;font-size:12px;color:#0c879b}.mission-copy h2{font-size:clamp(24px,2.7vw,37px);margin:5px 0 4px}.mission-copy p{font-size:17px;color:var(--muted);margin:0}.game-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(350px,.65fr);gap:22px}.board-card,.program-card{padding:22px}.board-head h3,.program-head h3{font-size:23px;margin:4px 0}.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted)}.grid-board{width:min(760px,100%);aspect-ratio:1;margin:18px auto;display:grid;gap:5px;padding:7px;background:#cce7ee;border:4px solid #add4df;border-radius:25px;box-shadow:inset 0 0 0 2px rgba(255,255,255,.7);user-select:none}.cell{position:relative;background:#f8fcf5;border-radius:12px;display:grid;place-items:center;min-width:0;overflow:hidden;box-shadow:inset 0 -3px 0 rgba(31,100,100,.08)}.cell:nth-child(3n){background:#f3faf0}.cell.obstacle{background:#d8e0dd}.cell.obstacle:after{content:'🪨';font-size:clamp(22px,4vw,50px);filter:drop-shadow(0 4px 3px rgba(0,0,0,.13))}.cell.goal{background:radial-gradient(circle,#fff8bc,#e9f5c7)}.cell.goal:after{content:'🔋';font-size:clamp(24px,4.2vw,52px);filter:drop-shadow(0 4px 3px rgba(0,0,0,.12))}.robot-token{position:absolute;z-index:3;font-size:clamp(27px,4.8vw,60px);filter:drop-shadow(0 5px 4px rgba(0,0,0,.18));transition:transform .17s ease,opacity .17s ease}.robot-token.bump{animation:bump .34s ease}.cell.path-preview:before{content:'•';font-size:36px;color:rgba(22,140,165,.28)}@keyframes bump{0%,100%{transform:translateX(0)}35%{transform:translateX(-9px)}70%{transform:translateX(9px)}}.board-tip{display:flex;align-items:center;gap:10px;background:#f0f8fb;border-radius:17px;padding:12px 15px;color:#55737e}.board-tip p{margin:0}.command-palette{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:14px 0}.command-btn{min-height:82px;border:2px solid #d3e7ec;background:#f8fcfd;border-radius:18px;cursor:pointer;color:#285660;font-weight:700;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;transition:.15s}.command-btn:hover,.command-btn:focus-visible{transform:translateY(-2px);border-color:#6bc1d1;outline:3px solid rgba(107,193,209,.2)}.command-btn span{font-size:38px;line-height:1}.command-btn.repeat{background:#f1edff;border-color:#dcd2ff;color:#5b4aa0}.sequence-wrap{background:#f6fafb;border:1px dashed #bcd8df;border-radius:20px;padding:14px}.sequence-label small{color:var(--muted)}.program-sequence{display:flex;gap:8px;flex-wrap:wrap;align-content:flex-start;min-height:112px;margin-top:12px}.empty-sequence{color:#8aa0a8;align-self:center;margin:auto}.seq-chip{border:0;border-radius:14px;min-width:52px;height:52px;background:#ddf2f6;color:#176b7c;font-size:26px;font-weight:700;cursor:pointer;position:relative}.seq-chip.repeat{background:#e9e3ff;color:#5c49a6;font-size:17px}.seq-chip.executing{outline:4px solid #ffc94c;transform:scale(1.06)}.seq-chip.done{opacity:.55}.program-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0}.small-action,.secondary-button{border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:#40646d;font-weight:700;cursor:pointer}.primary-button,.danger-button,.apply-button{width:100%;border:0;border-radius:17px;padding:15px 18px;font-weight:700;color:#fff;background:linear-gradient(135deg,#168ca5,#0e6e80);cursor:pointer;box-shadow:0 8px 17px rgba(13,111,128,.18)}.danger-button{background:#d9675c}.secondary-button{width:auto}.efficiency{margin-top:14px;background:#fff9df;border-radius:17px;padding:12px 14px;display:grid;grid-template-columns:1fr auto;gap:3px 12px}.efficiency span{font-weight:700;color:#6a5d1f}.efficiency strong{font-size:20px;color:#806207}.efficiency small{grid-column:1/-1;color:#7c7560}.feedback{margin-top:20px;padding:15px 18px;display:flex;align-items:center;gap:12px}.feedback span{font-size:25px}.feedback p{margin:0;font-size:16px}.feedback.good{border-color:#9fd9c1;background:#f3fcf8}.feedback.bad{border-color:#efb5ae;background:#fff7f5}.hidden{display:none!important}.step-counter{background:#edf8f9;color:#39707b;font-weight:700;padding:8px 11px;border-radius:999px}.dialog{border:0;border-radius:28px;padding:0;width:min(650px,calc(100% - 28px));box-shadow:0 28px 80px rgba(14,58,68,.28);color:var(--ink)}.dialog::backdrop{background:rgba(19,49,62,.45);backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:22px 24px 15px;border-bottom:1px solid var(--line)}.dialog-head h2{margin:4px 0}.close-button{border:0;background:#edf5f6;border-radius:50%;width:42px;height:42px;font-size:25px;cursor:pointer}.dialog-body{padding:20px 24px 24px}.setting{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:14px 0;border-bottom:1px solid #edf3f5}.setting span{display:flex;flex-direction:column;gap:3px}.setting small{color:var(--muted)}.setting select{min-width:160px;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff}.toggle-setting input{width:24px;height:24px}.apply-button{margin-top:18px}.success-dialog{text-align:center;padding:28px}.success-icon{font-size:56px}.success-dialog h2{font-size:30px;margin:8px 0}.success-dialog>p{color:var(--muted)}.result-stars{font-size:38px;letter-spacing:5px;margin:10px}.reflection{text-align:left;display:flex;gap:12px;background:#f3f9fb;border-radius:18px;padding:15px;margin:16px 0}.reflection span{font-size:28px}.reflection p{margin:4px 0 0;color:var(--muted)}footer{text-align:center;padding:8px 20px 25px;color:#6a8189;margin-top:auto}
@media(max-width:1050px){.game-layout{grid-template-columns:1fr}.grid-board{max-width:680px}.program-card{order:2}.command-palette{grid-template-columns:repeat(6,1fr)}}
@media(max-width:720px){.topbar{align-items:flex-start}.header-tools .tool-button span{display:none}.brand p{display:none}.workspace{padding-left:12px;padding-right:12px}.mission-top,.mission-copy,.board-head{align-items:flex-start;flex-direction:column}.command-palette{grid-template-columns:repeat(3,1fr)}.program-actions{grid-template-columns:1fr}.legend{display:none}.grid-board{gap:3px;padding:4px;border-width:3px}.cell{border-radius:8px}}