:root{--night:#183651;--deep:#0e293e;--gold:#efb84d;--cream:#fbf5e7;--ink:#173047;--muted:#61717c;--teal:#277c7b;--coral:#dd745e;--card:#fff;--shadow:0 15px 38px rgba(21,51,68,.15)}
*{box-sizing:border-box}html{color-scheme:light}body{margin:0;min-height:100vh;color:var(--ink);font-family:"Malgun Gothic","맑은 고딕",sans-serif;background:radial-gradient(circle at 8% 20%,rgba(239,184,77,.15) 0 100px,transparent 101px),linear-gradient(145deg,#faf7ee,#edf5f2)}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:4px solid var(--gold);outline-offset:3px}[hidden]{display:none!important}
.library-hero{text-align:center;padding:70px 20px 95px;color:#fff;background:linear-gradient(rgba(9,35,53,.78),rgba(9,35,53,.88)),url("../images/story_003_scene_05.webp") center/cover}.moon{font-size:70px;color:var(--gold)}.overline{font-weight:900;letter-spacing:.1em;color:#ffd980}.library-hero h1{margin:8px 0 16px;font-size:clamp(40px,7vw,68px);line-height:1.15}.library-hero>p:last-child{font-size:20px}.library-main{width:min(1160px,calc(100% - 30px));margin:-55px auto 60px}.story-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}.story-link{grid-column:span 2;position:relative;display:flex;flex-direction:column;overflow:hidden;border-radius:23px;color:var(--ink);background:#fff;text-decoration:none;box-shadow:var(--shadow);transition:transform .2s}.story-link:nth-child(4){grid-column:2/span 2}.story-link:hover{transform:translateY(-7px)}.story-link img{width:100%;aspect-ratio:3/2;object-fit:cover}.story-link h2{margin:8px 20px;font-size:22px;line-height:1.35}.story-link p{margin:0 20px 14px;line-height:1.6;color:var(--muted);flex:1}.story-number{margin:18px 20px 0;color:var(--teal);font-weight:900}.difficulty{align-self:flex-start;margin:0 20px 18px;padding:7px 12px;border-radius:99px;font-weight:900;background:#e5f2ef}.story-link.middle .difficulty{background:#fff0ce}.story-link.hard .difficulty{background:#f8ded7}.story-link strong{padding:17px 20px;color:#fff;background:var(--night)}.library-note{text-align:center;margin:34px auto;color:var(--muted);font-weight:700}
.start-screen{min-height:100vh;display:grid;place-items:center;padding:22px;background:linear-gradient(rgba(8,35,53,.72),rgba(8,35,53,.82)),url("../images/story_001_scene_06.webp") center/cover}.start-card{width:min(650px,100%);padding:clamp(34px,7vw,62px);border:1px solid rgba(255,255,255,.35);border-radius:30px;text-align:center;color:#fff;background:rgba(16,49,70,.9);box-shadow:0 30px 80px rgba(0,0,0,.35)}.start-moon{font-size:58px;color:var(--gold)}.start-card h1{font-size:clamp(31px,6vw,49px);margin:8px 0 20px}.start-card>p:not(.overline){font-size:19px;line-height:1.7}.primary-button{min-height:57px;padding:15px 26px;border:0;border-radius:99px;color:var(--ink);background:var(--gold);box-shadow:0 8px 0 #ba8030;font-weight:900;font-size:17px}.back-link{display:block;margin:26px auto 0;color:#fff;font-weight:800}.back-link.dark{color:var(--night)}
.game-header{height:76px;display:grid;grid-template-columns:54px 1fr auto;align-items:center;gap:16px;padding:0 max(16px,calc((100vw - 1180px)/2));color:#fff;background:var(--night);box-shadow:0 5px 18px rgba(8,35,53,.25)}.game-header>div{display:flex;flex-direction:column}.game-header small{color:#ffd980}.game-header strong{font-size:19px}.home-link{width:48px;height:48px;display:grid;place-items:center;border-radius:50%;color:#fff;background:rgba(255,255,255,.14);text-decoration:none;font-size:25px}.sound-button{min-height:44px;padding:0 17px;border:0;border-radius:99px;color:#fff;background:rgba(255,255,255,.15);font-weight:900}.game-main{width:min(1180px,calc(100% - 30px));margin:20px auto 50px}.progress-box,.story-line,.play-grid,.time-nudge{background:#fff;box-shadow:var(--shadow)}.progress-box{padding:14px 18px;border-radius:16px}.progress-box>div:first-child{display:flex;justify-content:space-between;font-weight:900}.progress-box strong{padding:5px 10px;border-radius:99px;color:var(--night);background:#e6f0f1}.progress-track{height:11px;margin-top:10px;border-radius:99px;background:#e3e9e7;overflow:hidden}.progress-track div{height:100%;background:linear-gradient(90deg,var(--gold),var(--coral));transition:width .3s}.story-line{display:flex;justify-content:center;align-items:center;gap:12px;margin:14px 0;padding:14px 20px;border-left:6px solid var(--gold);border-radius:16px}.story-line span{color:var(--gold);font-size:23px}.story-line p{margin:0;text-align:center;font-size:clamp(17px,2.2vw,22px);font-weight:900;line-height:1.5}.play-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(290px,.8fr);gap:26px;padding:clamp(16px,3vw,28px);border-radius:22px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:10px;min-height:42px}.section-head h2{margin:0;font-size:20px}.section-head span{color:var(--muted);font-weight:800}.small-button{min-height:42px;padding:8px 14px;border:0;border-radius:12px;color:var(--night);background:#dfeff0;font-weight:900}.puzzle-board{width:100%;display:grid;gap:5px;margin-top:12px;padding:7px;border:3px solid var(--night);border-radius:14px;background:#dce4e0;overflow:hidden}.slot{position:relative;min-width:0;min-height:0;padding:0;border:2px dashed rgba(24,54,81,.24);background:rgba(255,255,255,.6);overflow:hidden}.slot:after{content:attr(data-number);position:absolute;inset:0;display:grid;place-items:center;color:rgba(24,54,81,.3);font-size:22px;font-weight:900}.slot.ready{background:#fff0b8;border-color:var(--gold)}.slot.correct{border:0}.slot.correct:after{display:none}.piece-tray{min-height:250px;display:grid;grid-template-columns:repeat(3,minmax(70px,1fr));align-content:start;gap:11px;margin-top:12px;padding:13px;border:2px solid #e1e8e5;border-radius:14px;background:#f5f8f6}.piece{width:100%;padding:0;border:3px solid #fff;border-radius:8px;background-repeat:no-repeat;box-shadow:0 4px 11px rgba(20,48,64,.25);cursor:grab;touch-action:none}.piece:hover,.piece.selected{outline:4px solid var(--gold);transform:translateY(-2px)}.slot .piece{height:100%;border:0;border-radius:0;box-shadow:none;pointer-events:none}.drag-ghost{position:fixed;z-index:1500;pointer-events:none;opacity:.9;transform:rotate(2deg) scale(1.04)}.tip{color:var(--muted);line-height:1.6;font-size:14px}.feedback{height:45px;display:grid;place-items:center;font-size:20px;font-weight:900}.feedback.good{color:#287961}.feedback.bad{color:#a74139}.shake{animation:shake .4s}@keyframes shake{25%{transform:translateX(-5px)}50%{transform:translateX(5px)}75%{transform:translateX(-3px)}}.game-nav{display:flex;justify-content:center;gap:12px;margin-top:17px}.game-nav button{min-height:51px;min-width:130px;padding:9px 16px;border:0;border-radius:99px;color:#fff;background:var(--night);font-weight:900}.game-nav .soft{color:var(--night);background:#dfeff0}.game-nav button:disabled{opacity:.35;cursor:not-allowed}.time-nudge{display:flex;align-items:center;gap:13px;margin-top:17px;padding:15px 19px;border-left:6px solid var(--gold);border-radius:16px}.time-nudge p{flex:1;margin:0;font-weight:800}.modal{position:fixed;inset:0;z-index:1700;display:grid;place-items:center;padding:20px;background:rgba(8,31,47,.72)}.modal-card{position:relative;width:min(560px,100%);max-height:90vh;overflow:auto;padding:34px;border-radius:24px;text-align:center;background:#fff;box-shadow:0 30px 80px rgba(0,0,0,.35)}.modal-card ol{text-align:left;line-height:1.9}.close-button{position:absolute;top:12px;right:12px;width:44px;height:44px;border:0;border-radius:50%;font-size:26px;background:#edf2f0}.picture-card{width:min(760px,100%)}.picture-card img{display:block;max-width:100%;max-height:62vh;margin:0 auto 14px;border-radius:13px}.picture-card p{font-weight:900}.stars{font-size:42px;color:var(--gold)}.trophy{width:94px;height:94px;display:grid;place-items:center;margin:auto;border-radius:50%;font-size:48px;color:var(--night);background:var(--gold);box-shadow:0 0 0 11px #fff0c8}.finish-card p{line-height:1.7}
@media(max-width:820px){.story-grid{grid-template-columns:1fr 1fr}.story-link,.story-link:nth-child(4){grid-column:span 1}.story-link:last-child{grid-column:1/-1;width:calc(50% - 10px);justify-self:center}.play-grid{grid-template-columns:1fr}.piece-tray{min-height:160px;grid-template-columns:repeat(4,minmax(58px,1fr))}.game-main{width:min(680px,calc(100% - 20px))}}
@media(max-width:540px){.library-hero{padding-top:48px}.story-grid{grid-template-columns:1fr}.story-link,.story-link:nth-child(4),.story-link:last-child{grid-column:1;width:100%}.game-header{height:68px;grid-template-columns:48px 1fr auto;gap:9px}.game-header strong{font-size:14px}.sound-button{padding:0 9px;font-size:13px}.play-grid{padding:13px}.piece-tray{grid-template-columns:repeat(3,minmax(58px,1fr));gap:8px;padding:9px}.game-nav{gap:6px}.game-nav button{min-width:0;flex:1;padding:7px}.time-nudge{flex-wrap:wrap;align-items:flex-start}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}