:root {
    --bg:#08080a;
    --bg2:#111114;
    --card:#16161b;
    --inp:#1e1e25;
    --hov:#26262e;
    --brd:#2a2a33;
    --t1:#f0eff4;
    --t2:#9896a3;
    --t3:#6b6878;
    --ac:#6c5ce7;
    --acl:#a29bfe;
    --acg:rgba(108,92,231,.12);
    --ac2:#fd79a8;
    --ok:#00b894;
    --err:#e17055;
    --r1:8px;
    --r2:12px;
    --r3:16px;
    --sh:0 8px 48px rgba(0,0,0,.4);
    --tr:.2s cubic-bezier(.4,0,.2,1);
}

* { margin:0; padding:0; box-sizing:border-box; }
html { touch-action:manipulation; }

body {
    font-family:'DM Sans',sans-serif;
    background:var(--bg);
    color:var(--t1);
    min-height:100vh;
    overflow-x:hidden;
}

/* ===================== AMBIENT BACKGROUND ===================== */
.ambg { position:fixed; inset:0; z-index:0; pointer-events:none; }
.ambg::before {
    content:''; position:absolute; top:-30%; left:-20%;
    width:600px; height:600px;
    background:radial-gradient(circle,rgba(108,92,231,.06) 0%,transparent 70%);
    animation:f1 20s ease-in-out infinite;
}
.ambg::after {
    content:''; position:absolute; bottom:-20%; right:-10%;
    width:500px; height:500px;
    background:radial-gradient(circle,rgba(253,121,168,.04) 0%,transparent 70%);
    animation:f2 25s ease-in-out infinite;
}
@keyframes f1{0%,100%{transform:translate(0,0)}50%{transform:translate(80px,60px)}}
@keyframes f2{0%,100%{transform:translate(0,0)}50%{transform:translate(-60px,-80px)}}

/* ===================== HEADER ===================== */
header {
    position:relative; z-index:10; padding:20px 40px;
    display:flex; align-items:center; justify-content:space-between;
    border-bottom:1px solid var(--brd);
    backdrop-filter:blur(20px); background:rgba(8,8,10,.85);
}

.logo { display:flex; align-items:center; gap:16px; text-decoration:none; }
.logo-icon {
    width:44px; height:44px;
    background:linear-gradient(135deg,var(--ac),var(--ac2));
    border-radius:10px; display:grid; place-items:center;
    font-size:18px; color:#fff;
    box-shadow:0 4px 20px rgba(108,92,231,.35);
    transition:transform .3s,box-shadow .3s;
}
.logo:hover .logo-icon { transform:rotate(-6deg) scale(1.05); box-shadow:0 6px 28px rgba(108,92,231,.5); }

.logo-text { display:flex; align-items:baseline; gap:6px; }
.logo-text .p1 {
    font-family:'Playfair Display',serif; font-size:28px; font-weight:700;
    letter-spacing:-.03em;
    background:linear-gradient(135deg,#fff,#ddd);
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.logo-text .p2 {
    font-family:'Playfair Display',serif; font-size:28px; font-weight:400; font-style:italic;
    letter-spacing:-.02em;
    background:linear-gradient(135deg,var(--acl),var(--ac2));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}

.hlinks { display:flex; align-items:center; gap:12px; }
.hlink {
    display:inline-flex; align-items:center; gap:7px;
    padding:8px 14px; background:var(--card); border:1px solid var(--brd);
    border-radius:var(--r1); color:var(--t2); text-decoration:none;
    font-size:13px; font-weight:500; transition:all var(--tr);
    cursor:pointer; font-family:inherit;
}
.hlink:hover { background:var(--hov); border-color:var(--t3); color:var(--t1); }
.hlink i { font-size:14px; }

/* ===================== APP LAYOUT ===================== */
.app {
    position:relative; z-index:1; max-width:1400px;
    margin:0 auto; padding:24px 40px 80px; display:none;
}
.app.on { display:block; }

/* ===================== PANELS ===================== */
.panel {
    background:var(--card); border:1px solid var(--brd); border-radius:var(--r3); overflow:hidden;
}
.ph {
    padding:18px 24px; border-bottom:1px solid var(--brd);
    display:flex; align-items:center; gap:10px; font-size:14px; font-weight:600;
}
.ph i { color:var(--acl); font-size:15px; }
.pb { padding:24px; }

/* ===================== UPLOAD ZONE ===================== */
.upload-zone {
    border:2px dashed var(--brd); border-radius:var(--r2);
    padding:64px 20px; text-align:center; cursor:pointer;
    transition:all var(--tr); color:var(--t2); font-size:15px;
}
.upload-zone:hover, .upload-zone.drag { border-color:var(--ac); background:var(--acg); color:var(--t1); }
.upload-zone i { font-size:42px; margin-bottom:16px; display:block; color:var(--acl); }
.upload-title { font-weight:600; margin-bottom:6px; }
.upload-zone .hint { font-size:12px; color:var(--t3); margin-top:8px; }

/* ===================== TOP BAR ===================== */
.top-bar {
    display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
    padding:16px 20px; background:var(--card); border:1px solid var(--brd);
    border-radius:var(--r2); margin-bottom:16px;
}
.top-left, .top-right { display:flex; align-items:center; gap:12px; }
.top-sep { width:1px; height:24px; background:var(--brd); }
.top-stat {
    font-size:12.5px; color:var(--t3); display:flex; align-items:center; gap:6px;
    font-family:'JetBrains Mono',monospace;
}
.top-stat i { color:var(--acl); font-size:12px; }

/* ===================== TOOLBAR ===================== */
.toolbar {
    display:flex; gap:8px; flex-wrap:wrap;
    padding:14px 20px; background:var(--bg2); border-radius:var(--r2); border:1px solid var(--brd);
    margin-bottom:16px;
}
.tool-btn {
    padding:9px 14px; border:1px solid var(--brd); border-radius:var(--r1);
    background:var(--inp); color:var(--t2); font-family:inherit;
    font-size:12.5px; font-weight:500; cursor:pointer;
    transition:all var(--tr); display:flex; align-items:center; gap:6px;
    white-space:nowrap;
}
.tool-btn:hover:not(:disabled) { background:var(--hov); border-color:var(--ac); color:var(--t1); }
.tool-btn.danger:hover:not(:disabled) { border-color:var(--err); color:var(--err); background:rgba(225,112,85,.1); }
.tool-btn:disabled { opacity:.35; cursor:not-allowed; }
.tool-btn.primary { background:var(--ac); color:#fff; border-color:var(--ac); }
.tool-btn.primary:hover:not(:disabled) { background:#5b4bd5; }
.tool-btn i { font-size:12px; }
.tool-sep { width:1px; background:var(--brd); margin:0 2px; align-self:stretch; }

/* ===================== FORM ELEMENTS ===================== */
.fg { margin-bottom:14px; }
.fg:last-child { margin-bottom:0; }
.fg label {
    display:block; font-size:12.5px; font-weight:500;
    color:var(--t2); margin-bottom:7px; letter-spacing:.02em;
}

input[type="text"], input[type="number"], textarea, select {
    width:100%; padding:11px 14px;
    background:var(--inp); border:1px solid var(--brd); border-radius:var(--r1);
    color:var(--t1); font-family:'DM Sans',sans-serif; font-size:13.5px;
    transition:all var(--tr); outline:none;
}
input:focus, textarea:focus, select:focus { border-color:var(--ac); box-shadow:0 0 0 3px var(--acg); }
select {
    cursor:pointer; appearance:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239896a3' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat:no-repeat; background-position:right 14px center; padding-right:36px;
}

input[type="range"] {
    width:100%; height:6px; -webkit-appearance:none;
    background:var(--hov); border-radius:3px; outline:none;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance:none; width:18px; height:18px;
    background:var(--ac); border-radius:50%; cursor:pointer;
    box-shadow:0 2px 8px rgba(108,92,231,.3);
}

.cr { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.cpw {
    display:flex; align-items:center; gap:10px;
    padding:8px 12px; background:var(--inp); border:1px solid var(--brd); border-radius:var(--r1);
}
.cpw input[type="color"] { width:32px; height:32px; border:none; background:none; cursor:pointer; padding:0; border-radius:6px; }
.cpw input[type="color"]::-webkit-color-swatch-wrapper { padding:0; }
.cpw input[type="color"]::-webkit-color-swatch { border-radius:6px; border:2px solid var(--brd); }
.rl { display:flex; justify-content:space-between; font-size:11px; color:var(--t3); margin-top:4px; }

/* ===================== PAGE GRID ===================== */
.page-grid {
    display:grid; grid-template-columns:repeat(auto-fill,minmax(155px,1fr));
    gap:14px; max-height:calc(100vh - 280px); overflow-y:auto; padding:4px;
}
.page-thumb {
    position:relative; background:var(--card); border:2px solid var(--brd);
    border-radius:var(--r2); overflow:hidden; cursor:grab;
    transition:all var(--tr); aspect-ratio:0.707;
}
.page-thumb:hover { border-color:var(--t3); transform:translateY(-2px); box-shadow:var(--sh); }
.page-thumb.selected { border-color:var(--ac); box-shadow:0 0 0 2px var(--acg); }
.page-thumb.dragging { opacity:.4; transform:scale(.95); }
.page-thumb.drag-over { border-color:var(--ac2); border-style:dashed; background:rgba(253,121,168,.04); }
.page-thumb canvas { width:100%; height:100%; object-fit:contain; display:block; }
.page-num {
    position:absolute; bottom:0; left:0; right:0;
    padding:5px 8px; background:rgba(0,0,0,.75);
    font-size:10.5px; font-family:'JetBrains Mono',monospace;
    color:var(--t2); text-align:center; backdrop-filter:blur(4px);
}
.page-check {
    position:absolute; top:7px; right:7px; width:24px; height:24px;
    border-radius:50%; border:2px solid rgba(255,255,255,.3); background:rgba(0,0,0,.4);
    display:grid; place-items:center; font-size:10px; color:transparent;
    transition:all var(--tr); cursor:pointer; z-index:2;
}
.page-thumb.selected .page-check { border-color:var(--ac); background:var(--ac); color:#fff; }
.page-source {
    position:absolute; top:7px; left:7px;
    padding:2px 7px; border-radius:4px;
    font-size:9px; font-weight:600; font-family:'JetBrains Mono',monospace;
    background:rgba(0,0,0,.6); color:var(--t2); backdrop-filter:blur(4px);
    z-index:2; max-width:calc(100% - 44px); overflow:hidden; text-overflow:ellipsis;
    white-space:nowrap;
}
.page-actions {
    position:absolute; bottom:24px; left:0; right:0;
    display:flex; justify-content:center; gap:4px;
    opacity:0; transition:opacity var(--tr); z-index:2;
}
.page-thumb:hover .page-actions { opacity:1; }
.page-act {
    width:28px; height:28px; border-radius:6px;
    border:1px solid rgba(255,255,255,.15); background:rgba(0,0,0,.6);
    color:#fff; cursor:pointer; display:grid; place-items:center;
    font-size:11px; transition:all var(--tr); backdrop-filter:blur(4px);
}
.page-act:hover { background:var(--ac); border-color:var(--ac); }
.page-act.act-del:hover { background:var(--err); border-color:var(--err); }

.page-overlay {
    position:absolute; inset:0; display:grid; place-items:center;
    background:rgba(8,8,10,.7); z-index:3; pointer-events:none; opacity:0; transition:opacity .3s;
}
.page-overlay.on { opacity:1; }
.page-overlay i { font-size:20px; color:var(--acl); }

/* ===================== CROP MODAL ===================== */
.modal-overlay {
    position:fixed; inset:0; background:rgba(0,0,0,.65);
    z-index:100; display:none; align-items:center; justify-content:center;
    backdrop-filter:blur(6px);
}
.modal-overlay.on { display:flex; }
.modal {
    background:var(--card); border:1px solid var(--brd); border-radius:var(--r3);
    max-width:560px; width:92%; max-height:92vh; overflow-y:auto;
}
.modal.modal-lg { max-width:820px; }
.modal-close {
    margin-left:auto; width:28px; height:28px; border:1px solid var(--brd);
    border-radius:6px; background:var(--inp); color:var(--t3); cursor:pointer;
    display:grid; place-items:center; font-size:12px; transition:all var(--tr);
}
.modal-close:hover { border-color:var(--err); color:var(--err); }

.crop-container {
    position:relative; display:flex; align-items:center; justify-content:center;
    background:var(--bg); padding:16px; min-height:300px; overflow:hidden;
}
.crop-container canvas { display:block; max-width:100%; max-height:55vh; }
.crop-box {
    position:absolute; border:2px solid var(--ac); background:rgba(108,92,231,.08);
    cursor:move; z-index:5; min-width:20px; min-height:20px;
}
.crop-handle {
    position:absolute; width:14px; height:14px; background:var(--ac);
    border:2px solid #fff; border-radius:50%; z-index:6;
}
.crop-handle.tl { top:-7px; left:-7px; cursor:nw-resize; }
.crop-handle.tr { top:-7px; right:-7px; cursor:ne-resize; }
.crop-handle.bl { bottom:-7px; left:-7px; cursor:sw-resize; }
.crop-handle.br { bottom:-7px; right:-7px; cursor:se-resize; }
.crop-info {
    text-align:center; padding:10px; font-size:12px; color:var(--t3);
    font-family:'JetBrains Mono',monospace;
}

/* ===================== ANNOTATE MODAL ===================== */
.annotate-toolbar {
    display:flex; gap:6px; padding:12px 16px;
    border-bottom:1px solid var(--brd); flex-wrap:wrap; align-items:center;
    background:var(--bg2);
}
.anno-btn {
    padding:8px 12px; border:1px solid var(--brd); border-radius:var(--r1);
    background:var(--inp); color:var(--t2); font-family:inherit;
    font-size:12px; font-weight:500; cursor:pointer; transition:all var(--tr);
    display:flex; align-items:center; gap:5px;
}
.anno-btn:hover { background:var(--hov); border-color:var(--t3); color:var(--t1); }
.anno-btn.on { background:var(--acg); border-color:var(--ac); color:var(--acl); }
.anno-sep { width:1px; height:24px; background:var(--brd); margin:0 4px; }
.annotate-canvas-wrap {
    position:relative; display:flex; align-items:center; justify-content:center;
    padding:16px; min-height:350px; overflow:auto; background:var(--bg);
}
.annotate-canvas-wrap canvas { cursor:crosshair; box-shadow:var(--sh); }

/* Annotation layer: canvas + text overlays stacked */
.anno-layer { position:relative; display:inline-block; }
.anno-text-layer {
    position:absolute; inset:0; pointer-events:none; overflow:hidden;
}
.anno-text-node {
    position:absolute; pointer-events:auto; cursor:grab;
    font-family:'DM Sans',sans-serif; white-space:pre; outline:none;
    padding:2px 4px; border-radius:3px; min-width:20px; min-height:1em;
    transition:box-shadow .15s;
}
.anno-text-node:hover { box-shadow:0 0 0 2px var(--acl); }
.anno-text-node.editing { cursor:text; box-shadow:0 0 0 2px var(--ac); background:rgba(0,0,0,.25); }
.anno-text-node.dragging { opacity:.7; cursor:grabbing; }

/* Crop indicator on thumbnails */
.page-thumb.cropped::after {
    content:''; position:absolute; inset:0; pointer-events:none;
    border:2px dashed var(--ac2); border-radius:inherit; opacity:.5;
}

/* ===================== PROGRESS ===================== */
.progress-wrap { margin-top:16px; display:none; }
.progress-wrap.on { display:block; }
.progress-bar { height:4px; background:var(--hov); border-radius:2px; overflow:hidden; }
.progress-fill {
    height:100%; background:linear-gradient(90deg,var(--ac),var(--ac2));
    border-radius:2px; transition:width .3s; width:0;
}
.progress-text { font-size:11px; color:var(--t3); margin-top:6px; text-align:center; }

/* ===================== TOAST ===================== */
.toast {
    position:fixed; bottom:32px; left:50%;
    transform:translateX(-50%) translateY(100px);
    background:var(--card); border:1px solid var(--ac); color:var(--t1);
    padding:12px 22px; border-radius:var(--r2); font-size:13px;
    z-index:1000; box-shadow:var(--sh); transition:transform .3s;
    display:flex; align-items:center; gap:10px;
}
.toast.show { transform:translateX(-50%) translateY(0); }
.toast i { color:var(--ok); }

/* ===================== FOOTER ===================== */
footer {
    position:relative; z-index:1; text-align:center;
    padding:32px 40px; border-top:1px solid var(--brd);
    color:var(--t3); font-size:12.5px;
}
footer a { color:var(--acl); text-decoration:none; }
footer a:hover { text-decoration:underline; }

/* ===================== PWA INSTALL ===================== */
.install-btn {
    background:linear-gradient(135deg,var(--ac),var(--ac2));
    color:#fff; border:none; cursor:pointer; font-family:inherit;
    font-weight:600; border-radius:8px; padding:8px 16px; font-size:13px;
    transition:all var(--tr); animation:installPulse 2s ease-in-out infinite;
}
.install-btn:hover { transform:translateY(-1px); box-shadow:0 4px 16px rgba(108,92,231,.4); animation:none; }
@keyframes installPulse{0%,100%{box-shadow:0 0 0 0 rgba(108,92,231,.4)}50%{box-shadow:0 0 0 6px rgba(108,92,231,0)}}

/* ===================== FORM FILL MODAL ===================== */
.modal.modal-xl { max-width:1000px; }
.form-page-info { font-size:12px; color:var(--t3); margin-left:auto; margin-right:12px; font-family:'JetBrains Mono',monospace; }

.form-container { overflow:auto; max-height:calc(90vh - 200px); background:var(--bg); }
.form-canvas-wrap { position:relative; display:inline-block; margin:16px auto; display:flex; justify-content:center; }
.form-canvas-wrap canvas { display:block; box-shadow:var(--sh); }
.form-fields-layer { position:absolute; inset:0; pointer-events:none; }

.form-field-wrap {
    position:absolute; pointer-events:auto;
}
.form-field-input {
    width:100%; height:100%;
    background:rgba(108,92,231,.08); border:1.5px solid rgba(108,92,231,.35);
    border-radius:3px; color:#1a1a2e; font-family:'DM Sans',sans-serif;
    padding:1px 4px; outline:none; transition:border-color .15s, box-shadow .15s;
}
.form-field-input:focus {
    border-color:var(--ac); box-shadow:0 0 0 2px var(--acg);
    background:rgba(255,255,255,.95);
}
.form-field-input::placeholder { color:rgba(0,0,0,.3); font-size:inherit; }

.form-field-input[type="checkbox"] {
    width:auto; height:auto; cursor:pointer; accent-color:var(--ac);
    margin:0; padding:0;
}

.form-field-select {
    width:100%; height:100%;
    background:rgba(255,255,255,.92); border:1.5px solid rgba(108,92,231,.35);
    border-radius:3px; color:#1a1a2e; font-family:'DM Sans',sans-serif;
    padding:1px 4px; outline:none; cursor:pointer;
    appearance:auto;
}
.form-field-select:focus {
    border-color:var(--ac); box-shadow:0 0 0 2px var(--acg);
}

.form-field-textarea {
    width:100%; height:100%; resize:none;
    background:rgba(108,92,231,.08); border:1.5px solid rgba(108,92,231,.35);
    border-radius:3px; color:#1a1a2e; font-family:'DM Sans',sans-serif;
    padding:2px 4px; outline:none;
}
.form-field-textarea:focus {
    border-color:var(--ac); box-shadow:0 0 0 2px var(--acg);
    background:rgba(255,255,255,.95);
}

.form-nav {
    display:flex; align-items:center; justify-content:center; gap:12px;
    padding:10px; border-top:1px solid var(--brd); background:var(--card);
}

/* Form field badge on thumbs */
.page-thumb.has-form .page-num::after {
    content:' · 📋'; 
}

/* ===================== RESPONSIVE ===================== */
@media(max-width:960px) {
    .app { padding:16px 16px 60px; }
    header { padding:16px 20px; }
    .hlinks { display:none; }
    .page-grid { grid-template-columns:repeat(auto-fill,minmax(120px,1fr)); gap:10px; }
    .top-bar { flex-direction:column; align-items:stretch; }
    .top-left, .top-right { justify-content:center; }
    .install-btn {
        position:fixed; bottom:20px; right:20px; z-index:100;
        padding:12px 20px; font-size:14px; border-radius:50px;
        box-shadow:0 4px 20px rgba(0,0,0,.4);
    }
}

@media(max-width:600px) {
    .toolbar { gap:6px; padding:10px 12px; }
    .tool-btn { padding:7px 10px; font-size:11.5px; }
    .tool-sep { width:100%; height:1px; margin:2px 0; }
    .logo-text .p1, .logo-text .p2 { font-size:22px; }
    .cr { grid-template-columns:1fr; }
    .annotate-toolbar { gap:4px; padding:8px 10px; }
    .anno-btn { padding:6px 8px; font-size:11px; }
    .page-grid { grid-template-columns:repeat(auto-fill,minmax(100px,1fr)); gap:8px; }
    .page-actions { gap:3px; }
    .page-act { width:24px; height:24px; font-size:10px; }
}