*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  /* CoreWeave brand */
  --cw-primary: #4264ff;
  --cw-primary-soft: rgba(66,100,255,0.10);
  --cw-primary-mid: rgba(66,100,255,0.22);

  /* Surfaces */
  --bg: #0d1117;
  --surface: #161b22;

  /* Text */
  --text: #c9d1d9;
  --dim: #6e7681;
  --white: #f0f6fc;

  /* Borders — nearly invisible */
  --border: rgba(66,100,255,0.06);
  --border-hover: rgba(66,100,255,0.16);

  /* Status */
  --success: #3fb950;
  --warning: #d29922;
  --danger: #f85149;

  /* Legacy compat (sidebar inline styles) */
  --accent: var(--cw-primary);

  /* Animation ease */
  --ease: cubic-bezier(.22, 1, .36, 1);
}

html,body{height:100%;background:var(--bg);color:var(--text);font-family:'IBM Plex Mono',monospace;overflow:hidden}

/* Animated grid background */
body::before{
  content:'';position:fixed;inset:0;
  background:
    linear-gradient(var(--cw-primary) 1px,transparent 1px),
    linear-gradient(90deg,var(--cw-primary) 1px,transparent 1px);
  background-size:40px 40px;opacity:.03;pointer-events:none;z-index:0;
}

/* Scan-line sweep — uses transform (compositor-only, no repaints) */
body::after{
  content:'';position:fixed;left:0;right:0;height:200%;top:-100%;
  pointer-events:none;z-index:0;
  background:linear-gradient(180deg, transparent 0%, rgba(66,100,255,0.03) 50%, transparent 100%);
  will-change:transform;
  animation:scanline 8s ease-in-out infinite;
}
@keyframes scanline{
  0%{transform:translateY(0)}
  100%{transform:translateY(50%)}
}

/* Logo glow pulse */
@keyframes glow{
  0%,100%{filter:drop-shadow(0 0 3px rgba(66,100,255,0.3))}
  50%{filter:drop-shadow(0 0 8px rgba(66,100,255,0.6))}
}

.app{display:grid;grid-template-rows:auto 1fr;grid-template-columns:280px 1fr;height:100vh;position:relative;z-index:1}

/* ── HEADER — seamless ── */
.header{
  grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;
  padding:12px 20px;
  background:var(--surface);
  border-bottom:none;
  position:relative;
  z-index:20;
}
.header::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg, transparent, rgba(66,100,255,0.12) 20%, rgba(66,100,255,0.12) 80%, transparent);
}
.header-left{display:flex;align-items:center;gap:14px}

/* Logo — CW geometric mark */
.logo{
  font-family:'Source Sans 3','Space Grotesk',sans-serif;font-weight:600;font-size:16px;
  color:var(--white);letter-spacing:-.3px;display:flex;align-items:center;gap:10px;
}
.logo-mark{
  width:28px;height:28px;position:relative;
  animation:glow 4s ease-in-out infinite;
  will-change:filter;
}
.logo-mark svg{width:100%;height:100%}
.header-meta{font-size:10px;color:var(--dim);letter-spacing:1.5px;text-transform:uppercase}
.header-right{display:flex;align-items:center;gap:6px}

/* ── BUTTONS — minimal, rounded ── */
.btn{
  font-family:'Source Sans 3','IBM Plex Mono',sans-serif;font-size:12px;font-weight:500;
  letter-spacing:.3px;
  padding:6px 14px;border-radius:6px;
  border:1px solid transparent;background:transparent;color:var(--dim);
  cursor:pointer;transition:all .25s var(--ease);position:relative;
}
.btn:hover{color:var(--white);background:var(--cw-primary-soft)}
.btn-primary{color:var(--cw-primary);background:var(--cw-primary-soft);border-color:var(--border-hover)}
.btn-primary:hover{background:var(--cw-primary-mid)}
.btn:disabled{opacity:.35;pointer-events:none}
.btn.active{
  color:var(--white);background:var(--cw-primary);border-color:var(--cw-primary);
}

/* ── SIDEBAR — seamless ── */
.sidebar{
  background:var(--surface);overflow-y:auto;display:flex;flex-direction:column;
  border-right:none;
  box-shadow:1px 0 30px rgba(13,17,23,0.6);
  position:relative;
}
.sidebar::after{
  content:'';position:absolute;top:0;right:0;bottom:0;width:1px;
  background:linear-gradient(180deg, rgba(66,100,255,0.1), rgba(66,100,255,0.04) 50%, rgba(66,100,255,0.1));
}
.sidebar-section{
  padding:14px 16px;
  border-bottom:1px solid var(--border);
  animation:sectionReveal .4s var(--ease) both;
}
.sidebar-section:nth-child(1){animation-delay:.05s}
.sidebar-section:nth-child(2){animation-delay:.1s}
.sidebar-section:nth-child(3){animation-delay:.15s}
.sidebar-section:nth-child(4){animation-delay:.2s}
.sidebar-section:nth-child(5){animation-delay:.25s}
.sidebar-section:nth-child(6){animation-delay:.3s}
@keyframes sectionReveal{
  from{opacity:0;transform:translateY(6px)}
  to{opacity:1;transform:translateY(0)}
}

.sidebar-label{
  font-family:'Source Sans 3','Space Grotesk',sans-serif;
  font-size:10px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--dim);margin-bottom:8px;
}

/* ── SOURCE TABS ── */
.source-tabs{display:flex;margin-bottom:8px;gap:4px}
.source-tab{
  flex:1;font-family:'Source Sans 3',sans-serif;font-size:11px;font-weight:500;
  padding:6px;border-radius:6px;
  border:1px solid transparent;background:transparent;color:var(--dim);
  cursor:pointer;text-align:center;transition:all .25s var(--ease);
}
.source-tab.active{background:var(--cw-primary);border-color:var(--cw-primary);color:var(--white)}
.source-tab:not(.active):hover{background:var(--cw-primary-soft);color:var(--text)}

/* ── DROP ZONE ── */
.drop-zone{
  border:1px dashed rgba(66,100,255,0.15);border-radius:8px;
  padding:20px 12px;text-align:center;cursor:pointer;
  transition:all .3s var(--ease);position:relative;
}
.drop-zone:hover,.drop-zone.dragover{
  border-color:var(--cw-primary);background:var(--cw-primary-soft);
  box-shadow:0 0 20px rgba(66,100,255,0.08);
}
.drop-zone-text{font-size:11px;color:var(--dim);line-height:1.7}
.drop-zone-text strong{color:var(--cw-primary);font-weight:500}
.drop-zone input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer}

/* ── INPUTS ── */
.sheet-input{
  width:100%;font-family:'IBM Plex Mono',monospace;font-size:11px;padding:8px 10px;
  border:1px solid var(--border);border-radius:6px;
  background:var(--bg);color:var(--text);outline:none;
  transition:border-color .25s var(--ease);
}
.sheet-input:focus{border-color:var(--cw-primary);box-shadow:0 0 0 2px rgba(66,100,255,0.1)}
.sheet-input::placeholder{color:var(--dim)}
.sheet-help{font-size:9px;color:var(--dim);margin-top:5px;line-height:1.5}

/* ── SEARCH ── */
.search-bar{display:flex;gap:0}
.search-bar input{
  flex:1;font-family:'IBM Plex Mono',monospace;font-size:11px;padding:6px 10px;
  border:1px solid var(--border);border-radius:6px 0 0 6px;
  background:var(--bg);color:var(--text);outline:none;
  transition:border-color .25s var(--ease);
}
.search-bar input:focus{border-color:var(--cw-primary)}
.search-bar input::placeholder{color:var(--dim)}
.search-bar button{
  font-family:'Source Sans 3',sans-serif;font-size:11px;font-weight:500;padding:6px 12px;
  border:1px solid var(--border);border-left:none;border-radius:0 6px 6px 0;
  background:var(--surface);color:var(--text);cursor:pointer;
  transition:all .25s var(--ease);
}
.search-bar button:hover{background:var(--cw-primary-soft);color:var(--white)}

/* ── LEGEND ── */
.legend-list{display:flex;flex-direction:column;gap:4px}
.legend-item{display:flex;align-items:center;gap:8px;font-size:10px}
.legend-swatch{width:12px;height:8px;flex-shrink:0;border-radius:2px}
.legend-count{margin-left:auto;color:var(--dim);font-size:9px;font-variant-numeric:tabular-nums}

/* ── DETAIL PANEL ── */
.detail-panel{flex:1;overflow-y:auto;padding:14px 16px}
.detail-empty{font-size:10px;color:var(--dim);font-style:italic}
.detail-title{
  font-family:'Source Sans 3','Space Grotesk',sans-serif;
  font-size:14px;font-weight:600;color:var(--white);margin-bottom:6px;
}
.detail-row{
  display:flex;justify-content:space-between;padding:3px 0;font-size:10px;
  border-bottom:1px solid var(--border);
}
.detail-key{color:var(--dim)}
.detail-val{color:var(--text);text-align:right;max-width:60%;word-break:break-all}

/* ── PARSE TREE ── */
.parse-tree{font-size:10px;line-height:1.8}
.parse-tree .hall{color:var(--cw-primary);font-weight:600}
.parse-tree .grid-letter{color:var(--white);margin-left:12px}
.parse-tree .pod{color:var(--dim);margin-left:24px}
.parse-tree .block-info{color:var(--dim);margin-left:36px;font-size:9px}
.parse-warn{
  font-size:9px;color:var(--warning);margin-top:6px;padding:5px 8px;border-radius:4px;
  border:1px solid rgba(210,153,34,0.2);background:rgba(210,153,34,0.05);
}

/* ── MAP CANVAS ── */
.map-container{position:relative;overflow:hidden;background:var(--bg)}
.map-canvas{position:absolute;inset:0;cursor:grab}
.map-canvas:active{cursor:grabbing}

/* ── ZOOM CONTROLS — pill style ── */
.zoom-controls{
  position:absolute;bottom:14px;right:14px;
  display:flex;flex-direction:column;gap:2px;z-index:10;
  background:rgba(22,27,34,0.85);backdrop-filter:blur(8px);
  border-radius:10px;padding:4px;
  border:1px solid var(--border);
}
.zoom-btn{
  width:32px;height:32px;display:flex;align-items:center;justify-content:center;
  border:none;border-radius:8px;
  background:transparent;color:var(--dim);
  font-size:16px;cursor:pointer;font-family:'IBM Plex Mono',monospace;
  transition:all .2s var(--ease);
}
.zoom-btn:hover{background:var(--cw-primary-soft);color:var(--cw-primary)}
.zoom-level{text-align:center;font-size:9px;color:var(--dim);padding:2px 0}

/* ── TITLE BLOCK — glass morphism ── */
.title-block{
  position:absolute;bottom:14px;left:14px;
  padding:10px 14px;min-width:200px;z-index:10;
  background:rgba(22,27,34,0.8);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--border);border-radius:8px;
  box-shadow:0 4px 24px rgba(0,0,0,0.3);
}
.tb-title{
  font-family:'Source Sans 3','Space Grotesk',sans-serif;
  font-size:13px;font-weight:600;color:var(--white);
  padding-bottom:6px;margin-bottom:6px;
  border-bottom:1px solid var(--border);
}
.tb-row{display:flex;justify-content:space-between;font-size:9px;padding:2px 0}
.tb-label{color:var(--dim);letter-spacing:.8px;text-transform:uppercase}
.tb-value{color:var(--white)}

/* ── EMPTY STATE ── */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:14px;opacity:.5}
.empty-state-icon{
  width:64px;height:64px;border:1px solid rgba(66,100,255,0.15);border-radius:12px;
  position:relative;display:flex;align-items:center;justify-content:center;
}
.empty-state-icon::before{
  content:'';position:absolute;top:10px;left:10px;right:10px;bottom:10px;
  border:1px dashed rgba(66,100,255,0.12);border-radius:6px;
}
.empty-state-icon::after{
  content:'+';font-size:22px;color:rgba(66,100,255,0.25);
}
.empty-state-text{font-size:11px;color:var(--dim);text-align:center;line-height:1.7}

/* ── TOAST — glow accent ── */
.toast{
  position:fixed;top:14px;right:14px;padding:8px 14px;font-size:11px;
  border:1px solid rgba(66,100,255,0.2);border-radius:8px;
  background:rgba(22,27,34,0.92);backdrop-filter:blur(8px);
  color:var(--cw-primary);z-index:100;
  box-shadow:0 0 20px rgba(66,100,255,0.1);
  transform:translateY(-10px);opacity:0;
  transition:all .3s var(--ease);pointer-events:none;
}
.toast.show{transform:translateY(0);opacity:1}

/* ── AI SECTION ── */
.ai-section{display:flex;flex-direction:column;gap:6px}
.ai-key-row{display:flex;gap:4px}
.ai-key-row input{
  flex:1;font-family:'IBM Plex Mono',monospace;font-size:10px;padding:6px 8px;
  border:1px solid var(--border);border-radius:6px;
  background:var(--bg);color:var(--text);outline:none;
  transition:border-color .25s var(--ease);
}
.ai-key-row input:focus{border-color:var(--cw-primary)}
.ai-key-row input::placeholder{color:var(--dim)}
.ai-toggle{display:flex;align-items:center;gap:6px;font-size:10px;color:var(--dim)}
.ai-toggle label{cursor:pointer;display:flex;align-items:center;gap:5px}
.ai-toggle input[type="checkbox"]{accent-color:var(--cw-primary);cursor:pointer}
.ai-status{
  font-size:9px;padding:5px 8px;border-radius:4px;
  border:1px solid rgba(66,100,255,0.1);background:rgba(66,100,255,0.03);
  color:var(--dim);line-height:1.5;display:none;
}
.ai-status.active{display:block}
.ai-status.analyzing{border-color:rgba(66,100,255,0.3);color:var(--cw-primary)}
.ai-status.done{border-color:rgba(63,185,80,0.3);color:var(--success)}
.ai-status.error{border-color:rgba(248,81,73,0.3);color:var(--danger)}

/* ── SCROLLBAR ── */
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(66,100,255,0.15);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:rgba(66,100,255,0.25)}