:root{
  --bg:#fafafa;--surface:#fff;--surface2:#f0f0f0;
  --accent:#6c63ff;--accent-light:#8b83ff;
  --gold:#d4af37;
  --text:#262626;--text-dim:#8e8e8e;
  --danger:#ed4956;--success:#4ade80;
  --radius:16px;--radius-sm:10px;
  --shadow:0 1px 3px rgba(0,0,0,.08),0 4px 12px rgba(0,0,0,.05);
  --shadow-lg:0 8px 30px rgba(0,0,0,.12);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{width:100%;height:100%;font-family:'Noto Sans KR','Noto Sans JP','Noto Sans SC',system-ui,sans-serif;background:var(--bg);color:var(--text);overflow:hidden;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}

.progress-bar{position:fixed;top:0;left:0;right:0;height:3px;background:var(--surface2);z-index:9999}
.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),#ff6b9d,var(--gold));transition:width .4s}

.screen{display:none;position:fixed;inset:0;overflow-y:auto;-webkit-overflow-scrolling:touch;background:var(--bg)}
.screen.active{display:flex;flex-direction:column;align-items:center;animation:fadeUp .3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.container{width:100%;max-width:480px;padding:20px 16px 60px}
.center-content{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;text-align:center}

.title{font-size:26px;font-weight:800;background:linear-gradient(135deg,var(--accent),#ff6b9d);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}
.subtitle{font-size:14px;color:var(--text-dim);margin-bottom:32px}
.section-title{font-size:18px;font-weight:700;margin-bottom:14px;padding-top:8px}
.label{font-size:13px;font-weight:600;margin-bottom:6px}
.desc{font-size:12px;color:var(--text-dim)}

.card-section{background:var(--surface);border-radius:var(--radius);padding:14px;margin-bottom:10px;box-shadow:var(--shadow)}

.btn{display:inline-flex;align-items:center;justify-content:center;border:none;border-radius:var(--radius-sm);cursor:pointer;font-family:inherit;font-weight:700;font-size:15px;padding:12px 24px;transition:all .2s;width:100%}
.btn-primary{background:linear-gradient(135deg,var(--accent),#ff6b9d);color:#fff;box-shadow:0 4px 15px rgba(108,99,255,.3)}
.btn-primary:active{transform:scale(.97);opacity:.9}
.btn-small{width:auto;padding:8px 16px;font-size:13px;background:var(--surface2);color:var(--text);border-radius:8px;font-weight:600}

.input{width:100%;padding:10px 14px;background:var(--surface2);border:1.5px solid transparent;border-radius:var(--radius-sm);color:var(--text);font-size:14px;font-family:inherit;transition:border-color .2s}
.input:focus{outline:none;border-color:var(--accent)}
.textarea{resize:vertical;min-height:80px;line-height:1.6}
.url-row{display:flex;gap:8px;align-items:center}
.url-row .input{flex:1}

.upload-zone{border:2px dashed #d0d0d0;border-radius:var(--radius);padding:28px;text-align:center;color:var(--text-dim);cursor:pointer;transition:border-color .2s}
.upload-zone:active{border-color:var(--accent)}
.small-zone{padding:16px;margin-top:8px}

.thumb-list{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.thumb-item{position:relative;width:64px;height:64px;border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}
.thumb-item img{width:100%;height:100%;object-fit:cover}
.thumb-remove{position:absolute;top:-2px;right:-2px;width:20px;height:20px;border-radius:50%;background:var(--danger);color:#fff;font-size:11px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center}

/* Chips */
.chip-row{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
.chip-row.wrap{flex-wrap:wrap}
.chip{padding:8px 14px;border-radius:20px;border:1.5px solid #e0e0e0;background:#fff;color:var(--text);font-size:12px;font-weight:600;font-family:inherit;cursor:pointer;white-space:nowrap;transition:all .15s}
.chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.chip:active{transform:scale(.95)}
.chip-sm{padding:6px 12px;font-size:11px}
.chip-font{font-size:14px;padding:8px 16px}
.chip-preset{font-size:13px}

/* Colors */
.color-row{display:flex;align-items:center;gap:10px}
.color-presets{display:flex;gap:6px;flex:1;overflow-x:auto}
.color-dot{width:32px;height:32px;border-radius:50%;border:2.5px solid transparent;cursor:pointer;transition:all .15s;flex-shrink:0}
.color-dot.active{border-color:var(--accent);box-shadow:0 0 0 2px rgba(108,99,255,.3)}
.color-input{width:36px;height:36px;border:none;border-radius:10px;cursor:pointer;background:transparent;flex-shrink:0}
.sub-option{margin-top:8px;display:flex;align-items:center;gap:8px}
.grad-row{display:flex;align-items:center;gap:10px}
.pos-group{display:flex;flex-direction:column;gap:6px}
.pos-group>div{display:flex;flex-direction:column;gap:4px}
.inline-row{display:flex;gap:16px}
.inline-row>div{flex:1}

.slider{width:100%;height:4px;-webkit-appearance:none;appearance:none;background:var(--surface2);border-radius:2px;outline:none}
.slider::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:var(--accent);cursor:pointer;box-shadow:0 2px 6px rgba(108,99,255,.3)}

/* Back Preview */
.preview-section{display:flex;justify-content:center}
.back-preview-wrap{width:200px;height:272px;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-lg);border:2px solid #e0e0e0}
.back-preview-wrap canvas{width:100%;height:100%;display:block}

/* Map */
.map-wrapper{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.map-container{width:100%;height:300px;background:var(--surface2);border-radius:var(--radius)}
.map-container.map-fullscreen{position:fixed!important;inset:0!important;height:100%!important;border-radius:0!important;z-index:9000}
.map-controls{position:absolute;top:10px;right:10px;display:flex;flex-direction:column;gap:6px;z-index:9001}
.map-ctrl-btn{padding:8px 12px;font-size:12px;font-weight:600;background:rgba(255,255,255,.95);color:#333;border:none;border-radius:8px;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.15);font-family:inherit}
.map-shrink-btn{position:fixed;top:16px;left:16px;z-index:9002;padding:10px 18px;background:rgba(255,255,255,.95);color:#333;border:none;border-radius:10px;font-size:14px;font-weight:700;cursor:pointer;box-shadow:0 4px 15px rgba(0,0,0,.2);font-family:inherit}

/* AR */
.ar-container{position:fixed;inset:0;background:#000}

.ar-status{position:absolute;top:16px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.65);backdrop-filter:blur(12px);border-radius:16px;padding:14px 20px;display:flex;flex-direction:column;align-items:center;gap:6px;z-index:100;min-width:260px;transition:opacity .5s}
.ar-steps{display:flex;align-items:center;gap:3px;width:100%}
.ar-step{display:flex;flex-direction:column;align-items:center;gap:3px}
.ar-step span{font-size:9px;color:rgba(255,255,255,.5);white-space:nowrap}
.ar-step-dot{width:10px;height:10px;border-radius:50%;background:#444;border:2px solid #666;transition:all .3s}
.ar-step.active .ar-step-dot{background:var(--accent);border-color:var(--accent);box-shadow:0 0 8px var(--accent)}
.ar-step.done .ar-step-dot{background:var(--success);border-color:var(--success)}
.ar-step.active span,.ar-step.done span{color:#fff}
.ar-step-line{flex:1;height:2px;background:#444;min-width:16px;transition:background .3s}
.ar-step-line.done{background:var(--success)}
.ar-status-msg{font-size:12px;color:#fff;text-align:center}
.ar-timer{font-size:10px;color:rgba(255,255,255,.5)}

.ar-hint{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;color:#fff;font-size:15px;animation:pulse 2s infinite;pointer-events:none;z-index:50}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:1}}

/* Trouble overlay */
.ar-trouble{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(0,0,0,.85);backdrop-filter:blur(12px);border-radius:20px;padding:28px;text-align:center;color:#fff;z-index:600;max-width:300px}
.ar-trouble p:first-child{font-size:16px;font-weight:700;margin-bottom:10px}
.trouble-desc{font-size:13px;color:rgba(255,255,255,.7);margin-bottom:16px;line-height:1.6}

/* AR Controls */
.ar-controls{position:absolute;left:0;right:0;bottom:120px;display:flex;flex-direction:column;gap:8px;padding:0 12px;z-index:200;pointer-events:none}
.ar-btn-row{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;pointer-events:auto}
.ar-btn-text{padding:9px 18px;background:rgba(0,0,0,.5);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.25);border-radius:22px;color:#fff;font-size:12px;font-weight:700;cursor:pointer;transition:all .15s;font-family:inherit;pointer-events:auto}
.ar-btn-text:active{transform:scale(.93);background:rgba(255,255,255,.2)}
.ar-btn-text.disabled{opacity:.35;pointer-events:none}
.ar-rotate-hint{text-align:center;color:rgba(255,255,255,.45);font-size:11px;margin-top:4px}
.ar-exit-btn{position:absolute;top:120px;right:14px;z-index:300;padding:8px 18px;background:rgba(237,73,86,.85);backdrop-filter:blur(8px);border:none;border-radius:22px;color:#fff;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit}

/* ★ Video Popup */
.video-popup{position:absolute;inset:0;background:rgba(0,0,0,.97);z-index:400;display:flex;align-items:center;justify-content:center;animation:fadeUp .3s}
.video-popup-inner{width:100%;max-width:480px;display:flex;flex-direction:column;align-items:center;gap:14px;padding:20px}
.video-popup-inner video{width:100%;max-height:55vh;border-radius:14px;background:#000}
.video-controls{display:flex;align-items:center;gap:8px;width:100%;flex-wrap:wrap}
.vid-ctrl-btn{padding:8px 16px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:20px;color:#fff;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;white-space:nowrap}
.vid-ctrl-btn:active{background:rgba(255,255,255,.25)}
.vid-timeline-wrap{flex:1;display:flex;flex-direction:column;gap:4px;min-width:120px}
.vid-timeline{width:100%;height:4px;-webkit-appearance:none;appearance:none;background:rgba(255,255,255,.2);border-radius:2px;outline:none}
.vid-timeline::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:#fff;cursor:pointer}
.vid-time{font-size:11px;color:rgba(255,255,255,.5);text-align:center}
.vid-close-btn{padding:12px 32px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);border-radius:26px;color:#fff;font-size:14px;font-weight:700;cursor:pointer;font-family:inherit;margin-top:4px}
.vid-close-btn:active{background:rgba(255,255,255,.2)}

/* Test Panel */
.test-panel{position:absolute;bottom:0;left:0;right:0;z-index:500;background:rgba(0,0,0,.88);backdrop-filter:blur(16px);border-top:2px solid;border-image:linear-gradient(90deg,#ff6b9d,#ffd700,#6c63ff,#4ade80) 1;transition:transform .3s}
.test-panel.collapsed{transform:translateY(calc(100% - 38px))}
.test-panel-header{display:flex;align-items:center;justify-content:space-between;padding:9px 16px;cursor:pointer}
.test-panel-title{font-size:12px;font-weight:700;background:linear-gradient(90deg,#ff6b9d,#ffd700,#6c63ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.test-panel-arrow{font-size:11px;color:#888;transition:transform .3s}
.test-panel.collapsed .test-panel-arrow{transform:rotate(180deg)}
.test-panel-body{padding:0 16px 14px;display:flex;flex-direction:column;gap:8px}
.test-panel.collapsed .test-panel-body{display:none}
.test-btn-row{display:flex;gap:8px}
.test-btn{flex:1;padding:11px 0;border:none;border-radius:10px;font-size:14px;font-weight:700;font-family:inherit;cursor:pointer;transition:all .15s}
.test-btn:active{transform:scale(.95)}
.test-btn-place{background:linear-gradient(135deg,#6c63ff,#8b83ff);color:#fff;box-shadow:0 4px 12px rgba(108,99,255,.3)}
.test-btn-remove{background:rgba(237,73,86,.15);color:var(--danger);border:1.5px solid var(--danger)}
.test-slider-group{display:flex;flex-direction:column;gap:5px}
.test-slider-item{display:flex;align-items:center;gap:8px;font-size:11px;color:#aaa}
.test-slider-item span:first-child{min-width:28px}
.test-slider-item span:last-child{min-width:36px;text-align:right}
.test-slider{flex:1;height:3px;-webkit-appearance:none;appearance:none;background:#333;border-radius:2px;outline:none}
.test-slider::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer}
.test-status{font-size:10px;text-align:center;padding:3px 10px;border-radius:10px;background:#222;color:#888}
.test-status.placed{background:rgba(74,222,128,.15);color:var(--success)}
.test-status.removed{background:rgba(237,73,86,.15);color:var(--danger)}

.toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%) translateY(60px);background:var(--text);color:#fff;padding:10px 24px;border-radius:24px;font-size:13px;opacity:0;transition:all .3s;z-index:10000;pointer-events:none;white-space:nowrap;box-shadow:var(--shadow-lg)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

.loading-overlay{position:fixed;inset:0;background:rgba(255,255,255,.85);backdrop-filter:blur(6px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;z-index:10001;color:var(--text);font-size:14px}
.spinner{width:32px;height:32px;border:3px solid var(--surface2);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}