:root{--navy:#00102E;--navy-light:#0a1f3d;--navy-mid:#1a2d4a;--accent:#d65050;--accent-hover:#b73d3d;--gold:#c9a84c;--text-light:#e8e8e8;--text-muted:#9aa3b2;--panel-bg:#eef0f3;--header-h:60px;--step-h:44px}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{height:100%;font-size:15px}
body{height:100%;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--navy);color:var(--text-light);display:flex;flex-direction:column;overflow:hidden}

/* HEADER */
.header{height:var(--header-h);background:var(--navy);display:flex;align-items:center;padding:0 20px;flex-shrink:0;z-index:60;gap:10px;border-bottom:1px solid rgba(255,255,255,.06)}
.header-glow{height:1px;background:linear-gradient(90deg,transparent,var(--accent),var(--gold),var(--accent),transparent);opacity:.4;flex-shrink:0}
.header-brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.header-logo{width:36px;height:36px;background:var(--navy-light);border-radius:8px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(201,168,76,0.2);flex-shrink:0}
.header-title h1{font-size:13px;font-weight:700;color:#fff;line-height:1.2}
.header-title h1 span{color:var(--accent)}
.header-title small{font-size:9px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1.2px;font-weight:500}
.header-contact{margin-left:auto;display:flex;align-items:center;gap:14px}
.header-contact a{color:var(--text-muted);text-decoration:none;font-size:11px;font-weight:500;transition:color .2s;white-space:nowrap}
.header-contact a:hover{color:var(--accent)}

/* STEP NAV */
.step-nav{display:flex;background:var(--navy-light);border-bottom:1px solid rgba(255,255,255,.06);flex-shrink:0;height:var(--step-h);padding:0 8px;gap:0;overflow-x:auto}
.step-nav::-webkit-scrollbar{height:2px}
.step-nav::-webkit-scrollbar-thumb{background:var(--navy-mid);border-radius:2px}
.step-link{display:flex;align-items:center;padding:0 14px;color:var(--text-muted);text-decoration:none;font-size:11px;font-weight:600;transition:all .2s;white-space:nowrap;border-bottom:2px solid transparent;position:relative}
.step-link:hover{color:var(--text-light);background:rgba(255,255,255,.03)}
.step-link.active{color:#fff;border-bottom-color:var(--accent);background:rgba(214,80,80,0.08)}

/* LAYOUT */
.app{display:flex;flex:1;min-height:0;overflow:hidden}

/* LEFT PANEL */
.left-panel{width:380px;min-width:380px;background:var(--navy);display:flex;flex-direction:column;flex-shrink:0;border-right:1px solid rgba(255,255,255,.06);z-index:10}
.panel-step{display:none;overflow-y:auto;padding:14px 16px}
.panel-step.active{display:block;flex:1;min-height:0}
.panel-step::-webkit-scrollbar{width:4px}
.panel-step::-webkit-scrollbar-thumb{background:var(--navy-mid);border-radius:4px}
.panel-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:4px}
.panel-step>p{font-size:11px;color:var(--text-muted);margin-bottom:10px}

/* OPTS GRID */
.opts-grid{display:grid;grid-template-columns:1fr 1fr;gap:5px}
.opts-grid-3{grid-template-columns:1fr 1fr 1fr}
.opts-grid-4{grid-template-columns:1fr 1fr 1fr 1fr}
.opts-btn{background:var(--navy-light);border:1px solid rgba(255,255,255,.08);border-radius:7px;padding:6px 4px;cursor:pointer;transition:all .2s;display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--text-muted);font-family:inherit;font-size:10px;font-weight:500;text-align:center;line-height:1.2;min-height:52px;justify-content:center}
.opts-btn:hover{border-color:var(--gold);background:rgba(201,168,76,0.07);color:var(--text-light)}
.opts-btn.active{border-color:var(--accent);background:rgba(214,80,80,0.12);color:#fff;box-shadow:0 0 0 1px var(--accent)}
.opts-btn img{width:100%;aspect-ratio:1/1;object-fit:contain;border-radius:3px;background:rgba(0,0,0,0.2);pointer-events:none;max-height:50px}
.opts-btn span{pointer-events:none}

/* CATEGORY TABS */
.cat-tabs{display:flex;gap:4px;margin-bottom:8px;flex-wrap:wrap}
.cat-tab{background:var(--navy-light);border:1px solid rgba(255,255,255,.06);border-radius:6px;padding:4px 8px;cursor:pointer;color:var(--text-muted);font-size:10px;font-weight:600;font-family:inherit;transition:all .15s;white-space:nowrap}
.cat-tab:hover{border-color:var(--gold);color:var(--text-light)}
.cat-tab.active{background:var(--accent);border-color:var(--accent);color:#fff}

/* TEXT CONTROLS */
.ctrl-row{display:flex;flex-direction:column;gap:4px;margin-bottom:8px}
.ctrl-row label{font-size:11px;font-weight:600;color:var(--text-muted)}
.sel{background:var(--navy-light);border:1px solid rgba(255,255,255,.1);border-radius:5px;padding:6px 8px;font-size:11px;color:var(--text-light);font-family:inherit;outline:none;cursor:pointer}
.sel option{background:var(--navy);color:var(--text-light)}
.ta{background:var(--navy-light);border:1px solid rgba(255,255,255,.1);border-radius:5px;padding:6px 8px;font-size:11px;color:var(--text-light);font-family:inherit;outline:none;resize:none;width:100%}
.ta:focus,.sel:focus{border-color:var(--gold)}
.align-group{display:flex;gap:3px}
.btn-al{background:var(--navy-light);border:1px solid rgba(255,255,255,.08);border-radius:5px;padding:4px 10px;cursor:pointer;color:var(--text-muted);font-size:13px;transition:all .15s;font-family:inherit;line-height:1}
.btn-al:hover{border-color:var(--gold);color:var(--text-light)}
.btn-al.active{border-color:var(--accent);background:rgba(214,80,80,0.15);color:#fff}
.color-grid{display:flex;gap:3px;flex-wrap:wrap}
.color-btn{width:24px;height:24px;border-radius:5px;border:2px solid transparent;cursor:pointer;background-size:cover;background-position:center;transition:all .15s}
.color-btn:hover{border-color:var(--gold)}
.color-btn.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.action-btn{background:var(--accent);color:#fff;border:none;padding:7px 16px;border-radius:6px;font-size:11px;font-weight:600;cursor:pointer;transition:background .2s;font-family:inherit}
.action-btn:hover{background:var(--accent-hover)}
.upl-btn{background:var(--navy-mid);color:var(--text-muted);border-radius:5px;padding:5px 12px;font-size:11px;cursor:pointer;transition:all .15s;font-family:inherit}
.upl-btn:hover{background:var(--accent);color:#fff}

/* RIGHT PANEL */
.right-panel{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--panel-bg)}
.preview-area{flex:1;display:flex;align-items:center;justify-content:center;padding:16px;min-height:0;position:relative}
.preview-frame{width:100%;max-width:460px;aspect-ratio:3/4;background:#c8c8c8;border-radius:14px;overflow:hidden;box-shadow:0 6px 30px rgba(0,0,0,0.13);position:relative}
.preview-canvas{width:100%;height:100%;position:relative;overflow:hidden;cursor:default;user-select:none}
.preview-base-layer{position:absolute;inset:0;z-index:1;background:#7a7a7a center/cover;display:flex;align-items:center;justify-content:center}
.preview-base-layer .model-overlay{width:100%;height:100%;display:flex;align-items:center;justify-content:center;pointer-events:none}
.preview-base-layer .model-overlay img{max-width:92%;max-height:92%;object-fit:contain;filter:drop-shadow(0 0 4px rgba(255,255,255,.3))}
.preview-elements{position:absolute;inset:0;z-index:5}
.preview-hint{position:absolute;bottom:12px;left:0;right:0;text-align:center;font-size:11px;color:rgba(0,0,0,0.2);z-index:2;font-style:italic}

/* CANVAS ELEMENTS */
.canvas-el{position:absolute;z-index:6;cursor:grab;min-width:30px;min-height:30px}
.canvas-el img{width:100%;height:100%;object-fit:contain;pointer-events:none}
.canvas-el.selected{outline:2px solid var(--accent);outline-offset:-2px;box-shadow:0 0 0 3px rgba(214,80,80,0.15)}
.el-del{position:absolute;top:-10px;right:-10px;z-index:10;width:20px;height:20px;border-radius:50%;border:none;background:var(--accent);color:#fff;font-size:10px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 1px 3px rgba(0,0,0,0.3);transition:transform .15s;line-height:1;display:none}
.canvas-el.selected .el-del{display:flex}
.el-del:hover{transform:scale(1.15)}

/* QUOTE BAR */
.quote-bar{background:#fff;border-top:1px solid #e0e0e0;padding:10px 18px;display:flex;align-items:center;gap:12px;flex-shrink:0;flex-wrap:wrap}
.quote-bar-label{font-size:10px;font-weight:700;color:var(--navy);text-transform:uppercase;letter-spacing:1px;white-space:nowrap}
.quote-bar-info{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:11px;color:#555}
.quote-bar-info span{display:flex;align-items:center;gap:3px}
.quote-bar-info .ico{color:var(--accent);font-weight:700}
.quote-btn{margin-left:auto;background:var(--accent);color:#fff;border:none;padding:7px 20px;border-radius:7px;font-size:11px;font-weight:600;cursor:pointer;transition:background .2s;font-family:inherit;white-space:nowrap;display:inline-flex;align-items:center;gap:5px}
.quote-btn:hover{background:var(--accent-hover)}

/* RESPONSIVE */
@media(max-width:860px){
  .app{flex-direction:column}
  .left-panel{width:100%;min-width:0;max-height:40vh;border-right:none;border-bottom:1px solid rgba(255,255,255,.06)}
  .opts-grid{grid-template-columns:1fr 1fr 1fr}
  .opts-grid-4{grid-template-columns:1fr 1fr}
  .right-panel{min-height:50vh}
  .preview-frame{max-width:280px}
  .header-contact{display:none}
  .header{padding:0 10px}
  .header-title h1{font-size:11px}
  .quote-bar{flex-direction:column;align-items:stretch;text-align:center;gap:5px;padding:8px 14px}
  .quote-bar-info{justify-content:center}
  .quote-btn{margin-left:0}
}
@media(max-width:480px){
  .preview-frame{max-width:200px}
  .opts-grid{grid-template-columns:1fr 1fr}
  .opts-grid-4{grid-template-columns:1fr 1fr}
}