:root {
  --bg:#07070f; --card:#0d0d1e; --border:#222240; --text:#e8eaf8;
  --muted:#b8b8e0; --dim:#5858a0;
  --blue:#4dabf7; --purple:#cc5de8; --green:#69db7c;
  --orange:#ffa94d; --yellow:#ffd43b; --red:#ff6b6b;
  --amber:#ffaa00;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:'Barlow Condensed','Inter','Segoe UI',system-ui,sans-serif;font-size:16px;min-height:100vh;padding:22px 16px 56px}
.app{max-width:960px;margin:0 auto}

/* Header */
.header{text-align:left;margin-bottom:28px;padding-right:48px;position:relative}
.header-eye{
  font-family:'Share Tech Mono',monospace;
  font-size:.72rem;letter-spacing:.22em;color:#b2b6d2;margin-bottom:10px;
}
.header-title{
  font-family:'Orbitron',monospace;
  font-size:1.72rem;font-weight:900;letter-spacing:.06em;
  color:var(--amber);
  text-shadow:0 0 28px rgba(255,170,0,.35);
  margin-bottom:6px;line-height:1.1;
}
.title-badge{
  font-family:'Orbitron',monospace;
  font-size:.52em;font-weight:400;
  color:#eef0ff;opacity:.75;
  margin-left:.5rem;vertical-align:middle;letter-spacing:.04em;
}
.header-sub{
  font-family:'Share Tech Mono',monospace;
  font-size:.74rem;letter-spacing:.18em;color:#b2b6d2;
}

/* Cards */
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;margin-bottom:14px}
.section-title{font-size:12px;font-weight:bold;letter-spacing:2px;color:var(--muted);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.section-title-text{flex:1}

/* Drop zone */
.dropzone{border:2px dashed var(--dim);border-radius:12px;padding:56px 24px;text-align:center;cursor:pointer;transition:all .2s}
.dropzone:hover,.dropzone.drag{border-color:var(--blue);background:rgba(77,171,247,.06)}
.dz-icon{font-size:52px;margin-bottom:14px}
.dz-title{color:var(--blue);font-weight:bold;font-size:18px;margin-bottom:8px}
.dz-sub{color:var(--muted);font-size:14px}
.dz-types{color:var(--dim);font-size:13px;margin-top:10px}

/* Loading */
.loading{padding:56px 24px;text-align:center}
.loading-icon{font-size:42px;margin-bottom:14px;display:inline-block}
.loading-title{color:var(--blue);font-weight:bold;font-size:17px;margin-bottom:8px}
.loading-sub{color:var(--muted);font-size:14px;margin-bottom:18px}
.pbar{height:3px;background:var(--dim);border-radius:2px;overflow:hidden}
.pfill{height:100%;background:linear-gradient(90deg,var(--blue),var(--purple));border-radius:2px;animation:slide 1.8s ease-in-out infinite}

/* File bar */
.file-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--card);border:1px solid var(--border);border-radius:8px;margin-bottom:14px}
.file-name{font-size:14px;color:var(--green);font-weight:500}
.file-close{background:none;border:none;color:var(--muted);cursor:pointer;font-size:20px;line-height:1}
.btn-help{background:transparent;border:1px solid var(--dim);color:var(--muted);cursor:pointer;font-size:12px;font-weight:bold;letter-spacing:.5px;padding:4px 10px;border-radius:6px;transition:all .15s;line-height:1}
.btn-help:hover{color:var(--blue);border-color:var(--blue);background:rgba(77,171,247,.08)}
.live-badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:bold;letter-spacing:1px;color:var(--green);padding:4px 10px;border:1px solid var(--green);border-radius:20px}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--green);animation:pulse .9s ease-in-out infinite}
.orig-badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:bold;letter-spacing:1px;color:var(--orange);padding:4px 10px;border:1px solid var(--orange);border-radius:20px}

/* Spectrum */
#spectrum{width:100%;height:200px;background:#060614;border-radius:8px;margin-bottom:8px;display:block;border:1px solid var(--border)}
.spec-legend{font-size:14px;color:#c0c0e8;text-align:center;margin-bottom:14px}

/* Metrics */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
.metric{background:#0a0a1a;border:1px solid var(--border);border-radius:10px;padding:10px 8px;text-align:center}
.metric-val{font-size:18px;font-weight:bold;font-family:'Courier New',monospace;margin-bottom:3px}
.metric-sub{font-size:13px;color:var(--green);margin-bottom:3px}
.metric-label{font-size:13px;color:#c8c8ec;letter-spacing:1px}

/* Issues */
.issues{display:flex;flex-direction:column;gap:5px}
.issue{font-size:13px;padding:7px 12px;border-radius:4px;border-left:3px solid;line-height:1.5}
.issue.info{color:#90c8ff;background:#001525;border-color:var(--blue)}
.issue.warn{color:#ffc070;background:#1a0e00;border-color:var(--orange)}

/* Chain viz */
.chain-viz{display:flex;align-items:center;gap:5px;flex-wrap:wrap;padding:12px 14px;background:#0a0a1a;border-radius:8px;margin-bottom:14px;border:1px solid var(--border)}
.chain-label{font-size:11px;color:var(--muted);letter-spacing:1px;font-weight:bold}
.chain-node{font-size:11px;font-weight:bold;letter-spacing:1px;padding:4px 10px;border-radius:4px;border:1px solid;transition:all .2s}
.chain-arrow{color:var(--dim);font-size:14px}

/* Module */
.module{background:#0a0a1a;border-radius:10px;margin-bottom:10px;border:1px solid transparent;overflow:hidden;transition:border-color .2s}
.module.on{border-color:var(--mc,var(--blue))}
.mod-header{display:flex;align-items:center;padding:11px 14px;cursor:pointer;gap:9px;user-select:none}
.mod-dot{width:9px;height:9px;border-radius:50%;background:var(--mc,var(--blue));flex-shrink:0}
.mod-name{font-size:15px;font-weight:bold;letter-spacing:1.5px;flex:1;min-width:60px}
.mod-summary{font-size:13px;color:var(--muted);font-family:monospace;max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mod-icon-btn{width:22px;height:22px;border-radius:50%;border:1px solid var(--dim);background:transparent;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .15s;line-height:1;padding:0;color:var(--muted)}
.mod-icon-btn:hover{transform:scale(1.2)}
.mod-help-btn:hover{color:var(--blue);border-color:var(--blue)}
.mod-reset-btn:hover{color:var(--orange);border-color:var(--orange)}
.toggle{position:relative;width:30px;height:17px;flex-shrink:0}
.toggle input{opacity:0;width:0;height:0}
.toggle-track{position:absolute;inset:0;border-radius:9px;cursor:pointer;background:var(--dim);transition:background .2s}
.toggle-track::after{content:'';position:absolute;width:11px;height:11px;border-radius:50%;background:#fff;top:3px;left:3px;transition:left .2s}
.toggle input:checked+.toggle-track{background:var(--mc,var(--blue))}
.toggle input:checked+.toggle-track::after{left:16px}
.mod-arrow{color:var(--dim);font-size:11px;flex-shrink:0;transition:transform .2s}
.mod-arrow.open{transform:rotate(180deg)}
.mod-body{padding:0 14px 14px;display:none}
.mod-body.open{display:block}
.mod-desc{font-size:14px;color:#c0c0e8;margin-bottom:12px;line-height:1.6}


/* Slider */
.slider-row{margin-bottom:11px}
.slider-top{display:flex;justify-content:space-between;margin-bottom:4px}
.slider-label{font-size:15px;color:#cccce8}
.slider-val{font-size:14px;color:var(--blue);font-family:monospace;font-weight:bold}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:5px;border-radius:3px;background:var(--dim);outline:none;cursor:pointer}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--blue);cursor:pointer;transition:transform .1s;box-shadow:0 0 6px rgba(77,171,247,.5)}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.3)}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--blue);cursor:pointer;border:none}

/* Buttons */
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px;align-items:center}
.btn{padding:11px 20px;border-radius:8px;border:1px solid;font-weight:bold;font-size:13px;cursor:pointer;transition:all .15s;letter-spacing:.5px;white-space:nowrap}
.btn:disabled{opacity:.3;cursor:not-allowed}
.btn-proc{color:var(--green);border-color:var(--green);background:transparent}
.btn-proc.active{background:rgba(105,219,124,.18)}
.btn-orig{color:var(--orange);border-color:var(--orange);background:transparent}
.btn-orig.active{background:rgba(255,169,77,.18)}
.btn-stop{color:var(--red);border-color:var(--red);background:transparent;padding:11px 15px}
.btn-export{color:var(--yellow);border-color:var(--yellow);background:transparent}
.btn-secondary{color:var(--muted);border-color:var(--dim);background:transparent;font-size:12px;padding:9px 14px}
.btn-icon-action{width:42px;height:42px;border-radius:8px;border:1px solid var(--dim);background:transparent;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0;color:var(--muted)}
.btn-icon-action:hover{border-color:var(--blue);background:rgba(77,171,247,.1);color:var(--blue)}
.tip{font-size:13px;color:var(--muted);padding:10px 12px;background:#0a0a1a;border-radius:8px;line-height:1.8;border:1px solid var(--border)}
.tip strong{color:var(--blue)}

/* Section help button */
.section-help-btn{width:20px;height:20px;border-radius:50%;border:1px solid var(--dim);background:transparent;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--muted);transition:all .15s;padding:0}
.section-help-btn:hover{color:var(--blue);border-color:var(--blue)}

/* ── MODAL ── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:1000;display:flex;align-items:center;justify-content:center;padding:16px;backdrop-filter:blur(6px)}
.modal{background:#0e0e1e;border:1px solid var(--border);border-radius:16px;max-width:560px;width:100%;max-height:88vh;overflow-y:auto;position:relative}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 22px 16px;border-bottom:1px solid var(--border);position:sticky;top:0;background:#0e0e1e;z-index:1}
.modal-color-bar{width:5px;height:26px;border-radius:3px;background:var(--mc,var(--blue));flex-shrink:0}
.modal-title{font-size:17px;font-weight:bold;color:var(--mc,var(--blue));flex:1;margin-left:12px}
.modal-close{background:none;border:none;color:var(--muted);cursor:pointer;font-size:24px;line-height:1;padding:0;transition:color .15s}
.modal-close:hover{color:var(--text)}
.modal-body{padding:20px 22px 24px}
.modal-section{margin-bottom:20px}
.modal-section-title{font-size:11px;font-weight:bold;letter-spacing:2.5px;color:var(--muted);margin-bottom:9px;text-transform:uppercase}
.modal-section-text{font-size:14px;color:#ccd0f0;line-height:1.8}
.modal-tip{background:#07071a;border-left:3px solid var(--mc,var(--blue));padding:12px 14px;border-radius:0 8px 8px 0;font-size:13px;color:var(--blue);margin-top:8px;line-height:1.7}

/* ── EQ CANVAS ── */
.eq-wrap{margin-bottom:10px}
.eq-canvas{width:100%;height:170px;background:#060614;border-radius:8px;display:block;cursor:crosshair;border:1px solid var(--border);touch-action:none;-webkit-user-select:none;user-select:none}
.eq-readout{display:flex;align-items:center;flex-wrap:wrap;gap:12px;padding:7px 12px;background:#0a0a1a;border-radius:6px;font-size:14px;font-family:monospace;min-height:30px;margin-top:6px;border:1px solid var(--border)}
.eq-readout .lbl{color:#c0c0ec;font-size:13px;margin-right:2px}
.eq-readout .val{color:var(--blue);font-weight:bold}
.eq-hint{font-size:13px;color:#a8a8d8;text-align:center;margin-top:5px}
.eq-q-section{margin-top:12px;border-top:1px solid var(--border);padding-top:10px}
.eq-q-title{font-size:13px;font-weight:bold;letter-spacing:1.5px;color:#ccccec;margin-bottom:8px}

/* Animations */
@keyframes slide{0%{transform:translateX(-200%)}100%{transform:translateX(500%)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.2}}
.anim-pulse{animation:pulse 1.5s ease-in-out infinite}

@media(max-width:500px){
  .metrics{grid-template-columns:repeat(2,1fr)}
  body{padding:14px 10px 36px}
  .mod-summary{display:none}
}

/* ── HAMBURGER ─────────────────────────────────────────────────── */
.header{position:relative}
.hamburger-btn{position:absolute;right:0;top:4px;transform:none;background:transparent;border:1px solid var(--dim);color:var(--muted);font-size:18px;width:36px;height:36px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s;line-height:1}
.hamburger-btn:hover{color:var(--amber);border-color:var(--amber);background:rgba(255,170,0,.08)}
.hamburger-menu{position:absolute;top:calc(100% + 8px);right:0;background:#0e0e1e;border:1px solid var(--border);border-top:2px solid var(--amber);border-radius:12px;padding:10px;min-width:170px;z-index:500;display:none;box-shadow:0 8px 32px rgba(0,0,0,.5)}
.hamburger-menu.open{display:block}
.hmenu-item{display:block;color:var(--text);text-decoration:none;font-size:14px;padding:8px 12px;border-radius:6px;transition:background .15s;font-family:'Barlow Condensed',sans-serif;font-weight:600;letter-spacing:.04em}
.hmenu-item:hover{background:rgba(255,170,0,.08);color:var(--amber)}
.hmenu-sep{border:none;border-top:1px solid var(--border);margin:8px 0}
.hmenu-lang-label{font-size:11px;font-weight:bold;letter-spacing:1.5px;color:var(--muted);padding:0 12px 6px;text-transform:uppercase;font-family:'Barlow Condensed',sans-serif}
.hmenu-langs{display:flex;gap:5px;padding:0 8px 4px}
.lang-btn{padding:5px 0;flex:1;border-radius:6px;border:1px solid var(--dim);background:transparent;color:var(--muted);cursor:pointer;font-size:12px;font-weight:700;letter-spacing:.08em;transition:all .15s;font-family:'Share Tech Mono',monospace;text-align:center}
.lang-btn:hover{border-color:var(--amber);color:var(--amber)}
.lang-btn.active{background:rgba(255,170,0,.15);border-color:var(--amber);color:var(--amber)}

/* ── FOOTER ────────────────────────────────────────────────────── */
.app-footer{max-width:960px;margin:28px auto 0;padding:16px 16px 24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:4px 10px;font-size:12px;color:var(--muted);border-top:1px solid var(--border)}
.foot-copy{color:var(--muted)}
.foot-local{color:#5858a0}
.foot-sep{color:var(--dim)}
.foot-link{color:var(--muted);text-decoration:none;transition:color .15s}
.foot-link:hover{color:var(--blue)}

/* ── FOOTER MODAL ──────────────────────────────────────────────── */
.footer-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:2000;display:none;align-items:center;justify-content:center;padding:16px;backdrop-filter:blur(6px)}
.footer-modal-overlay.open{display:flex}
.footer-modal{background:#0e0e1e;border:1px solid var(--border);border-radius:16px;max-width:520px;width:100%;max-height:85vh;overflow-y:auto;position:relative}
.footer-modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px 14px;border-bottom:1px solid var(--border);position:sticky;top:0;background:#0e0e1e;z-index:1}
.footer-modal-title{font-size:17px;font-weight:bold;color:var(--blue);margin:0}
.footer-modal-close{background:none;border:none;color:var(--muted);cursor:pointer;font-size:22px;line-height:1;padding:0;transition:color .15s}
.footer-modal-close:hover{color:var(--text)}
.footer-modal-body{padding:20px 22px 26px;font-size:14px;color:#ccd0f0;line-height:1.9}
.footer-modal-body p{margin-bottom:12px}
.footer-modal-body p:last-child{margin-bottom:0}
.footer-modal-body ol{color:#ccd0f0}