/* ══ Reset & Layout ══ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:#0d0d0d;color:#fff;min-height:100vh}
.app{display:grid;grid-template-columns:var(--panel-w,320px) 5px 1fr;min-height:100vh}

/* ══ Panel (sidebar) ══ */
.panel{background:#161616;border-right:1px solid #1f1f1f;padding:16px 13px 40px;overflow-y:auto;max-height:100vh;position:sticky;top:0}
.ph{margin-bottom:14px}.ph h1{font-size:14px;font-weight:600;color:#e8e8e8;margin-bottom:2px}.ph p{font-size:10px;color:#3d3d3d}
/* Section headers (collapsible) */
.sec-header{font-size:14px;font-weight:600;letter-spacing:.5px;color:#e0e0e0;margin:4px 0 0;padding:12px 0 10px;border-bottom:1px solid #1c1c1c;cursor:pointer;display:flex;align-items:center;gap:6px;user-select:none;transition:color .15s}
.sec-header:hover{color:#fff}
.sec-chevron{font-size:10px;transition:transform .2s;display:inline-block;width:12px;text-align:center}
.sec-header.collapsed .sec-chevron{transform:rotate(-90deg)}
.sec-body{overflow:hidden;transition:max-height .25s ease,opacity .2s ease;max-height:1200px;opacity:1;padding-top:8px}
.sec-header.collapsed+.sec-body{max-height:0;opacity:0;padding-top:0}
.sec-sub{font-size:12px;font-weight:600;color:#888;margin:10px 0 6px}
.sec{font-size:10px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:#555;margin:14px 0 6px;padding-bottom:5px;border-bottom:1px solid #1c1c1c}
.fld{margin-bottom:10px}.fld label{display:block;font-size:12px;color:#999;margin-bottom:4px}
.fld input[type="text"],.fld textarea{width:100%;background:#1c1c1c;border:1px solid #252525;border-radius:5px;padding:8px 10px;color:#bbb;font-family:inherit;font-size:13px;outline:none;box-sizing:border-box}
.fld input:focus,.fld textarea:focus{border-color:#1a4a8a}
.crow{display:flex;gap:5px;align-items:center}
.crow input[type="color"]{width:34px;height:32px;padding:2px;border:1px solid #252525;border-radius:5px;background:#1c1c1c;cursor:pointer;flex-shrink:0}
.crow .hi{flex:1;background:#1c1c1c;border:1px solid #252525;border-radius:5px;padding:8px 10px;color:#bbb;font-family:'SF Mono',monospace;font-size:13px;outline:none}
.tabs{display:flex;border-radius:6px;overflow:hidden;border:1px solid #222;margin-bottom:4px}
.tab{flex:1;background:none;border:none;color:#888;font-size:12px;font-weight:500;padding:9px 4px;cursor:pointer;transition:background .15s,color .15s;text-align:center;font-family:inherit}
.tab.active{background:#212121;color:#ddd}
.tab+.tab{border-left:1px solid #222}
.srow{display:flex;align-items:center;gap:6px;margin-bottom:5px}
.srow label{font-size:11px;color:#888;width:28px;flex-shrink:0}
.srow input[type="range"]{flex:1;height:3px;cursor:pointer;accent-color:#1a4a8a}
.srow span{font-size:11px;color:#777;width:36px;text-align:right;flex-shrink:0}
.vinput{width:42px;background:#1a1a1a;border:1px solid #333;border-radius:3px;color:#aaa;font-size:11px;text-align:right;padding:2px 4px;flex-shrink:0;font-family:inherit}
.vinput:focus{border-color:#1a4a8a;outline:none;color:#ddd}
.vinput::-webkit-inner-spin-button,.vinput::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.vinput{-moz-appearance:textfield}
.blist{list-style:none;display:flex;flex-direction:column;gap:5px}
.brow{display:flex;align-items:center;gap:5px}
.brow input{flex:1;background:#1c1c1c;border:1px solid #252525;border-radius:4px;padding:7px 9px;color:#bbb;font-size:12px;outline:none}
.brm{background:none;border:none;color:#555;cursor:pointer;font-size:16px;width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:3px}
.brm:hover{color:#c44}
.badd{background:#181818;border:1px dashed #222;color:#606060;width:100%;padding:8px;border-radius:5px;cursor:pointer;font-size:12px;margin-top:5px;font-family:inherit}
.badd:hover{border-color:#1a4a8a;color:#4a7abf}
.pdrop{border:1.5px dashed #222;border-radius:7px;padding:11px;text-align:center;cursor:pointer;position:relative;overflow:hidden}
.pdrop:hover{border-color:#1a4a8a}
.pdrop.has-img{border-style:solid;border-color:#282828}
.pdrop p{font-size:12px;color:#555;line-height:1.5}
.pdrop input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.thumb{width:100%;height:44px;object-fit:cover;border-radius:3px;display:none;margin-bottom:4px}
.thumb.contain{object-fit:contain}
.bclr{background:#1e1e1e;border:none;color:#777;font-size:11px;padding:4px 10px;border-radius:4px;cursor:pointer;margin-top:2px;position:relative;z-index:2}
.flbl{font-size:10px;color:#5a8a5a;background:#1a2a1a;border-radius:3px;padding:2px 6px;margin-left:4px}
.hint{font-size:11px;color:#555;margin-top:3px;line-height:1.4}
.hint a{color:#4a7abf;text-decoration:none}
.hint a:hover{text-decoration:underline}
.egrp{margin-bottom:8px;padding:6px 0;border-bottom:1px solid #1a1a1a}
.egrp-name{font-size:12px;font-weight:600;color:#999;margin-bottom:6px;display:flex;align-items:center;gap:6px}
.egrp-name span{font-size:9px;color:#555;font-weight:400;text-transform:uppercase;letter-spacing:1px}
.erst{background:none;border:1px solid #333;color:#777;font-size:11px;padding:3px 10px;border-radius:4px;cursor:pointer;margin-left:auto}
.erst:hover{border-color:#555;color:#888}
.erst.active{border-color:#4CAF50;color:#4CAF50;background:rgba(76,175,80,.1)}
.step-row{display:flex;align-items:center;gap:6px;margin-bottom:6px;padding:5px 7px;background:#1a1a1a;border-radius:5px}
.step-num{width:18px;height:18px;border-radius:50%;background:#222;display:flex;align-items:center;justify-content:center;font-size:9px;color:#555;flex-shrink:0;font-weight:700}
.step-txt{font-size:9px;color:#555;line-height:1.4}

/* ══ Preview area ══ */
.prev{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px 20px;background:#090909;gap:10px;min-height:100vh}
.plbl{font-size:8px;color:#2a2a2a;letter-spacing:1px;text-transform:uppercase}
.sbox{position:relative;overflow:hidden;border-radius:3px;box-shadow:0 16px 60px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.04);flex-shrink:0}
.sbox.f11{width:540px;height:540px}
.sbox.f916{width:338px;height:600px}

.ad{position:absolute;top:0;left:0;transform-origin:top left;overflow:hidden}
.ad.f11{width:1080px;height:1080px;transform:scale(.5)}
.ad.f916{width:1080px;height:1920px;transform:scale(.3125)}
.adphoto{position:absolute;inset:0;background:#111820 50% 50%/cover no-repeat}
.advignette{position:absolute;inset:0;pointer-events:none;z-index:50;transition:opacity .2s}

/* ══ Resize handle ══ */
.resize-handle{background:#111;cursor:col-resize;transition:background .15s;position:relative}
.resize-handle:hover,.resize-handle.active{background:#333}
.resize-handle::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:1px;height:40px;background:#333;border-radius:1px}

/* ══ Zoom bar ══ */
.zoom-bar{display:flex;align-items:center;gap:6px;position:fixed;bottom:16px;left:calc(var(--panel-w,320px) + 5px + 16px);z-index:100;background:rgba(13,13,13,.85);border:1px solid #222;border-radius:8px;padding:8px 12px;backdrop-filter:blur(8px)}
.zoom-btn{background:#181818;border:1px solid #222;color:#777;font-size:13px;width:32px;height:28px;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-family:inherit}
.zoom-btn:hover{border-color:#444;color:#999}
.zoom-val{font-size:11px;color:#666;min-width:36px;text-align:center}
.zoom-bar input[type="range"]{flex:1;height:3px;cursor:pointer;accent-color:#1a4a8a}

/* ══ Font select ══ */
/* ══ Template picker ══ */
.tpl-trigger{width:100%;background:#1a1a1a;border:1px solid #252525;border-radius:6px;padding:10px 14px;color:#bbb;font-size:13px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-family:inherit;transition:border-color .15s}
.tpl-trigger:hover{border-color:#1a4a8a}
.tpl-change{font-size:11px;color:#4a7abf;font-weight:500}
.tpl-picker{position:fixed;inset:0;z-index:9998;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center}
.tpl-picker.open{display:flex}
.tpl-picker-inner{background:#161616;border:1px solid #252525;border-radius:10px;width:900px;max-width:94vw;max-height:90vh;overflow-y:auto;padding:32px}
.tpl-picker-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;font-size:16px;font-weight:600;color:#ccc}
.tpl-picker-close{background:none;border:none;color:#555;font-size:16px;cursor:pointer;padding:4px}
.tpl-picker-close:hover{color:#fff}
.tpl-grid{display:grid;grid-template-columns:1fr;gap:16px}
.tpl-card{background:#1a1a1a;border:2px solid #252525;border-radius:8px;padding:16px;cursor:pointer;transition:border-color .15s}
.tpl-card:hover{border-color:#444}
.tpl-card.active{border-color:#4CAF50}
.tpl-card-name{font-size:15px;font-weight:600;color:#ddd;margin-bottom:6px}
.tpl-card-desc{font-size:11px;color:#777;margin-bottom:12px;line-height:1.4}
.tpl-card-samples{display:flex;gap:10px;align-items:flex-start}
.tpl-card-samples img{flex:1;max-height:320px;object-fit:contain;border-radius:6px;background:#111}

.fsel{width:100%;background:#1c1c1c;border:1px solid #252525;border-radius:5px;padding:8px 10px;color:#bbb;font-size:13px;outline:none;cursor:pointer;font-family:inherit}
.fsel:focus{border-color:#1a4a8a}

/* ══ Download button ══ */
.dl-btn{width:100%;padding:14px;margin-top:16px;background:#1a4a8a;border:none;border-radius:6px;color:#e0e0e0;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .15s}
.dl-btn:hover{background:#1e5aa0}
.dl-btn:disabled{background:#1a1a1a;color:#555;cursor:wait}