/* ── VARIABLES ── */
:root{
  --green:#00ff88;--yellow:#ffcc00;--red:#ff3c3c;
  --bg:#080d08;--bg2:#0d140d;--bg3:#111a11;
  --surface:#131e13;--surface2:#1a2a1a;--surface3:#1f321f;
  --border:#1e3020;--border2:#254030;
  --text:#d4e8d4;--text2:#8ab88a;--text3:#5a7a5a;
  --sidebar-w:220px;--sidebar-w-collapsed:60px;
  --glow-green:0 0 28px rgba(0,255,136,.18);
  --glow-yellow:0 0 24px rgba(255,204,0,.16);
  --glow-red:0 0 24px rgba(255,60,60,.18);
}
[data-theme="light"]{
  --bg:#f0f4f0;--bg2:#e8efe8;--bg3:#dfe8df;
  --surface:#ffffff;--surface2:#f5f9f5;--surface3:#eaf2ea;
  --border:#c8dcc8;--border2:#b0ccb0;
  --text:#1a2a1a;--text2:#3a5a3a;--text3:#6a8a6a;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Rajdhani',sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden;transition:background .3s,color .3s}
.mono,code,pre{font-family:'Share Tech Mono',monospace}
img,svg,video,iframe{max-width:100%}

/* ── CIRCUIT GRID BG ── */
body::before{
  content:'';position:fixed;inset:0;
  background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:40px 40px;opacity:.12;pointer-events:none;z-index:0
}
body::after{
  content:'';position:fixed;inset:0;
  background:
    radial-gradient(circle at 12% 8%,rgba(0,255,136,.09),transparent 28%),
    radial-gradient(circle at 92% 16%,rgba(255,204,0,.05),transparent 18%),
    radial-gradient(circle at 86% 84%,rgba(255,60,60,.05),transparent 20%);
  pointer-events:none;z-index:0
}

/* ── SIDEBAR ── */
#sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  background:var(--bg2);border-right:1px solid var(--border);
  display:flex;flex-direction:column;z-index:100;
  transition:width .3s ease,transform .3s ease;overflow:hidden
}
#sidebar.collapsed{width:var(--sidebar-w-collapsed)}
.sidebar-header{padding:20px 16px 14px;border-bottom:1px solid var(--border);flex-shrink:0}
.sidebar-logo{display:flex;align-items:center;gap:10px}
.led-icon{width:12px;height:12px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);flex-shrink:0;animation:pulse-green 2s infinite}
.sidebar-title{font-size:.75rem;color:var(--green);font-weight:700;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;overflow:hidden}
.sidebar-sub{font-size:.6rem;color:var(--text3);font-family:'Share Tech Mono',monospace;white-space:nowrap}
#sidebar nav{flex:1;overflow-y:auto;overflow-x:hidden;padding:8px 0}
#sidebar nav a{
  display:flex;align-items:center;gap:12px;padding:10px 16px;
  color:var(--text2);text-decoration:none;font-size:.82rem;font-weight:600;
  letter-spacing:.05em;text-transform:uppercase;white-space:nowrap;
  transition:all .2s;position:relative
}
#sidebar nav a svg{flex-shrink:0;width:17px;height:17px;stroke-width:1.8}
#sidebar nav a:hover{color:var(--green);background:rgba(0,255,136,.07)}
#sidebar nav a.active{color:var(--green);background:rgba(0,255,136,.1)}
#sidebar nav a.active::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--green);border-radius:0 2px 2px 0}
.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border);display:flex;align-items:center;gap:8px;flex-shrink:0}
#theme-btn{background:var(--surface2);border:1px solid var(--border2);color:var(--text2);border-radius:20px;padding:5px 10px;font-size:.68rem;cursor:pointer;font-family:'Share Tech Mono',monospace;white-space:nowrap;transition:all .2s}
#theme-btn:hover{border-color:var(--green);color:var(--green)}
.sb-socials{display:flex;gap:8px;margin-left:auto}
.sb-socials a{color:var(--text3);transition:color .2s;display:flex}
.sb-socials a:hover{color:var(--green)}
#collapse-btn{position:absolute;right:-12px;top:50%;transform:translateY(-50%);width:24px;height:24px;border-radius:50%;background:var(--surface2);border:1px solid var(--border2);color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:10px;z-index:101;transition:all .2s}
#collapse-btn:hover{background:var(--green);color:#000;border-color:var(--green)}
.nav-label{transition:opacity .2s}
#sidebar.collapsed .nav-label{opacity:0;pointer-events:none}
#sidebar.collapsed .sidebar-title,#sidebar.collapsed .sidebar-sub,#sidebar.collapsed #theme-btn,#sidebar.collapsed .sb-socials{opacity:0;pointer-events:none}

/* ── TOPBAR (mobile) ── */
#topbar{display:none;position:fixed;top:0;left:0;right:0;height:52px;background:var(--bg2);border-bottom:1px solid var(--border);align-items:center;padding:0 16px;z-index:99;gap:12px}
#hamburger{background:none;border:none;color:var(--text);cursor:pointer;padding:4px;display:flex}
#topbar-title{font-size:.82rem;font-weight:700;color:var(--green);letter-spacing:.1em;text-transform:uppercase;flex:1}
#topbar-theme{background:none;border:1px solid var(--border2);color:var(--text2);padding:5px 8px;border-radius:4px;cursor:pointer;font-size:.68rem;font-family:'Share Tech Mono',monospace}

/* ── MAIN ── */
#main{margin-left:var(--sidebar-w);position:relative;z-index:1;transition:margin-left .3s;min-height:100vh}
#sidebar.collapsed~#main{margin-left:var(--sidebar-w-collapsed)}

/* ── PAGE HERO ── */
.page-hero{
  padding:80px 60px 60px;
  background:radial-gradient(ellipse 80% 80% at 0% 0%,rgba(0,255,136,.05) 0%,transparent 60%);
  border-bottom:1px solid var(--border)
}
.page-label{font-family:'Share Tech Mono',monospace;font-size:.68rem;color:var(--green);letter-spacing:.25em;text-transform:uppercase;margin-bottom:10px}
.page-title{font-size:2.8rem;font-weight:700;line-height:1.05;margin-bottom:12px}
.page-title span{color:var(--green)}
.page-desc{color:var(--text2);font-size:1rem;line-height:1.7;max-width:680px}
.page-content{padding:60px}
.page-hero>*,
.page-content>*{max-width:1520px;margin-inline:auto;width:100%}

/* ── TYPOGRAPHY ── */
h2{font-size:1.4rem;font-weight:700;margin-bottom:16px}
h3{font-size:1.1rem;font-weight:700;margin-bottom:12px}
p{line-height:1.7;color:var(--text2)}

/* ── BUTTONS ── */
.btn-primary,.btn-secondary,.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;font-family:'Rajdhani',sans-serif;font-weight:700;
  font-size:.88rem;letter-spacing:.1em;text-transform:uppercase;
  text-decoration:none;border-radius:2px;cursor:pointer;transition:all .2s;border:none
}
.btn-primary{background:var(--green);color:#000}
.btn-primary:hover{background:#00cc6e;box-shadow:0 0 20px rgba(0,255,136,.4)}
.btn-secondary{background:transparent;color:var(--green);border:1px solid var(--green)}
.btn-secondary:hover{background:rgba(0,255,136,.1)}
.btn-outline{background:transparent;color:var(--text2);border:1px solid var(--border2)}
.btn-outline:hover{border-color:var(--text2);color:var(--text)}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:#cc2020;box-shadow:0 0 20px rgba(255,60,60,.4)}

/* ── CARDS ── */
.card{background:var(--surface);border:1px solid var(--border);padding:24px;transition:border-color .2s}
.card:hover{border-color:var(--border2)}
.card.hover-green:hover{border-color:var(--green)}

/* ── GRIDS ── */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr));gap:20px}

/* -- FEATURE LAYOUTS -- */
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:28px;align-items:stretch}
.hero-panel,.media-card,.doc-card,.signal-card{
  background:linear-gradient(180deg,rgba(26,42,26,.94),rgba(19,30,19,.98));
  border:1px solid var(--border);
  position:relative;
  overflow:hidden
}
.hero-panel::before,.media-card::before,.doc-card::before,.signal-card::before{
  content:'';position:absolute;left:0;top:0;height:100%;width:2px;background:linear-gradient(180deg,var(--green),transparent)
}
.hero-panel{padding:20px}
.hero-visual{min-height:100%;display:flex;flex-direction:column;gap:16px}
.hero-visual img,.media-thumb,.image-rack img{
  display:block;background:var(--surface2)
}
.hero-visual img{border:1px solid var(--border)}
.hero-visual img.image-fill{
  width:100%;
  min-height:280px;
  object-fit:cover
}
.hero-visual img:not(.image-fill){
  width:auto;
  max-width:100%;
  height:auto;
  margin:0 auto;
  object-fit:contain
}
.meta-strip{display:flex;flex-wrap:wrap;gap:8px}
.meta-pill{
  padding:4px 10px;border:1px solid var(--border2);background:rgba(0,255,136,.05);
  color:var(--text2);font-family:'Share Tech Mono',monospace;font-size:.68rem;letter-spacing:.04em;text-transform:uppercase
}
.section-intro{display:flex;justify-content:space-between;gap:24px;align-items:end;flex-wrap:wrap;margin-bottom:24px}
.trace-title{display:flex;align-items:center;gap:14px}
.trace-title::before{content:'';width:42px;height:1px;background:var(--green);box-shadow:var(--glow-green)}
.link-chip{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;
  text-decoration:none;border:1px solid var(--border2);color:var(--text2);
  font-family:'Share Tech Mono',monospace;font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;
  transition:all .2s;background:var(--surface)
}
.link-chip:hover{border-color:var(--green);color:var(--green);box-shadow:var(--glow-green)}
.doc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:16px}
.doc-card{padding:24px 22px 20px 24px;display:flex;flex-direction:column;gap:12px}
.doc-label{font-family:'Share Tech Mono',monospace;font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--green)}
.doc-title{font-size:1.05rem;font-weight:700}
.doc-copy{font-size:.84rem;color:var(--text2);line-height:1.65;flex:1}
.doc-link-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:2px}
.doc-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--green);text-decoration:none;
  font-family:'Share Tech Mono',monospace;font-size:.72rem;letter-spacing:.04em;text-transform:uppercase
}
.doc-link:hover{text-decoration:underline}
.route-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:16px}
.route-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  min-height:100%;
  background:linear-gradient(180deg,var(--surface2),var(--surface));
  text-decoration:none;
  color:var(--text);
  transition:border-color .2s,transform .2s,box-shadow .2s,color .2s
}
.route-card:visited,
.route-card:hover,
.route-card:focus-visible,
.route-card:active{color:var(--text)}
.route-card:hover{
  border-color:var(--green);
  transform:translateY(-2px);
  box-shadow:var(--glow-green)
}
.route-card:focus-visible{
  outline:2px solid var(--green);
  outline-offset:2px;
  border-color:var(--green)
}
.route-kicker{
  font-family:'Share Tech Mono',monospace;
  font-size:.72rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--green)
}
.route-title{
  font-size:1.08rem;
  font-weight:700;
  color:var(--text)
}
.route-copy{
  color:var(--text2);
  font-size:.84rem;
  line-height:1.65
}
.download-link{position:relative}
.download-link::before{content:'↓';font-size:.9em;line-height:1}
.media-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:18px}
.media-card{display:flex;flex-direction:column}
.media-card button{all:unset;cursor:pointer;display:block}
.media-thumb{
  width:auto;
  max-width:100%;
  height:auto;
  max-height:320px;
  margin:0 auto;
  padding:12px;
  background:#edf3ed;
  border-bottom:1px solid var(--border)
}
.media-body{padding:18px 20px 20px 22px}
.media-kicker{font-family:'Share Tech Mono',monospace;font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--green);margin-bottom:7px}
.media-title{font-size:1rem;font-weight:700;margin-bottom:7px}
.media-copy{font-size:.84rem;color:var(--text2);line-height:1.65}
.image-rack{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr));gap:16px;align-items:start}
.image-rack img{
  width:auto;
  max-width:100%;
  height:auto;
  max-height:300px;
  margin:0 auto;
  padding:10px;
  background:#edf3ed;
  border:1px solid var(--border)
}
.note-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:16px}
.signal-card{padding:20px 20px 18px 24px}
.signal-card h3{font-size:1rem;margin-bottom:8px}
.signal-card p{font-size:.84rem}
.figure-caption{margin-top:10px;color:var(--text3);font-size:.75rem;font-family:'Share Tech Mono',monospace;line-height:1.5}

/* -- LIGHTBOX -- */
#lightbox{
  position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;
  background:rgba(4,7,4,.86);padding:32px
}
#lightbox.open{display:flex}
#lightbox-inner{
  width:min(1120px,100%);max-height:100%;background:var(--bg2);border:1px solid var(--border2);
  display:flex;flex-direction:column;overflow:hidden;position:relative
}
#lightbox-actions{
  position:absolute;top:12px;right:12px;z-index:2;display:flex;gap:10px;align-items:center
}
#lightbox-download{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:112px;height:36px;padding:0 14px;
  background:var(--surface);border:1px solid var(--border2);color:var(--text2);
  text-decoration:none;font-family:'Share Tech Mono',monospace;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase
}
#lightbox-download:hover{color:var(--green);border-color:var(--green)}
#lightbox-close{
  position:static;background:var(--surface);border:1px solid var(--border2);
  color:var(--text2);width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer
}
#lightbox-close:hover{color:var(--green);border-color:var(--green)}
#lightbox img{width:100%;max-height:78vh;object-fit:contain;background:#0a0f0a}
#lightbox-caption{
  padding:14px 18px;border-top:1px solid var(--border);font-size:.82rem;color:var(--text2);line-height:1.6
}

/* ── BADGES / PILLS ── */
.badge{font-family:'Share Tech Mono',monospace;font-size:.65rem;padding:3px 10px;border:1px solid var(--border2);border-radius:2px;color:var(--text2);background:var(--surface)}
.pill{font-family:'Share Tech Mono',monospace;font-size:.65rem;padding:3px 8px;background:var(--surface2);border:1px solid var(--border2);border-radius:2px;color:var(--text3)}
.pill-green{background:rgba(0,255,136,.1);color:var(--green);border-color:rgba(0,255,136,.3)}
.pill-yellow{background:rgba(255,204,0,.1);color:var(--yellow);border-color:rgba(255,204,0,.3)}
.pill-red{background:rgba(255,60,60,.1);color:var(--red);border-color:rgba(255,60,60,.3)}

/* ── TABLE ── */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.85rem}
thead{background:var(--surface2)}
th{padding:11px 14px;text-align:left;font-family:'Share Tech Mono',monospace;font-size:.62rem;letter-spacing:.1em;color:var(--text3);text-transform:uppercase;border-bottom:2px solid var(--border2);cursor:pointer;user-select:none;white-space:nowrap}
th:hover{color:var(--green)}
td{padding:10px 14px;border-bottom:1px solid var(--border);color:var(--text2)}
tr:hover td{background:var(--surface)}
.stage-chip{display:inline-block;padding:2px 8px;border-radius:2px;font-family:'Share Tech Mono',monospace;font-size:.6rem;letter-spacing:.05em}
.stage-chip.p1{background:rgba(0,255,136,.1);color:var(--green);border:1px solid rgba(0,255,136,.2)}
.stage-chip.p2{background:rgba(255,204,0,.1);color:var(--yellow);border:1px solid rgba(255,204,0,.2)}
.stage-chip.p3{background:rgba(255,60,60,.1);color:var(--red);border:1px solid rgba(255,60,60,.2)}
.total-row td{background:var(--surface2);font-weight:700;color:var(--green);border-top:2px solid var(--green)}

/* ── FILTER BTNS ── */
.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.filter-btn{padding:6px 16px;font-family:'Share Tech Mono',monospace;font-size:.68rem;border:1px solid var(--border2);background:var(--surface);color:var(--text2);cursor:pointer;border-radius:2px;transition:all .2s;text-transform:uppercase;letter-spacing:.05em}
.filter-btn.active{background:var(--green);color:#000;border-color:var(--green)}

/* ── FORM ── */
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:.7rem;color:var(--text3);font-family:'Share Tech Mono',monospace;letter-spacing:.05em;text-transform:uppercase;margin-bottom:6px}
.form-group input,.form-group textarea{width:100%;background:var(--bg2);border:1px solid var(--border2);color:var(--text);padding:10px 14px;font-size:.9rem;font-family:'Rajdhani',sans-serif;border-radius:2px;transition:border-color .2s;outline:none}
.form-group input:focus,.form-group textarea:focus{border-color:var(--green)}
.form-group textarea{resize:vertical;min-height:120px}
.form-submit{width:100%;padding:12px;background:var(--green);color:#000;font-weight:700;font-size:.9rem;letter-spacing:.1em;text-transform:uppercase;border:none;border-radius:2px;cursor:pointer;transition:all .2s;font-family:'Rajdhani',sans-serif}
.form-submit:hover{background:#00cc6e;box-shadow:0 0 20px rgba(0,255,136,.4)}
.form-success{padding:14px;background:rgba(0,255,136,.1);border:1px solid rgba(0,255,136,.3);color:var(--green);border-radius:2px;display:none;margin-top:12px;font-size:.85rem}

/* ── SECTION DIVIDERS ── */
.section-block{padding-bottom:48px;margin-bottom:48px;border-bottom:1px solid var(--border)}
.section-block:last-child{border-bottom:none;margin-bottom:0}
.section-label-sm{font-family:'Share Tech Mono',monospace;font-size:.65rem;color:var(--green);letter-spacing:.2em;text-transform:uppercase;margin-bottom:8px}

/* ── WARNING BOX ── */
.warn-box{padding:14px 18px;background:rgba(255,60,60,.08);border:1px solid rgba(255,60,60,.25);border-radius:2px;font-family:'Share Tech Mono',monospace;font-size:.72rem;color:var(--red);line-height:1.6}
.info-box{padding:14px 18px;background:rgba(0,255,136,.07);border:1px solid rgba(0,255,136,.2);border-radius:2px;font-size:.85rem;color:var(--text2);line-height:1.6}

/* ── CHATBOT ── */
#chat-btn{position:fixed;bottom:28px;right:28px;z-index:200;width:52px;height:52px;border-radius:50%;background:var(--green);color:#000;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(0,255,136,.4);transition:all .2s}
#chat-btn:hover{transform:scale(1.08)}
#chat-panel{position:fixed;bottom:92px;right:28px;z-index:200;width:min(360px,calc(100vw - 32px));max-height:68vh;background:var(--bg2);border:1px solid var(--border2);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 8px 40px rgba(0,0,0,.6);transform:translateY(16px) scale(.95);opacity:0;pointer-events:none;transition:all .25s ease}
#chat-panel.open{transform:none;opacity:1;pointer-events:all}
.chat-header{padding:13px 15px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;flex-shrink:0}
.chat-header-title{flex:1;font-size:.82rem;font-weight:700;letter-spacing:.05em}
.chat-icon-btn{background:none;border:none;color:var(--text3);cursor:pointer;padding:4px;border-radius:4px;transition:color .2s;display:flex}
.chat-icon-btn:hover{color:var(--green)}
.chat-key-row{padding:10px 12px;border-bottom:1px solid var(--border);display:none;gap:6px}
.chat-key-row.visible{display:flex}
.chat-key-row input{flex:1;background:var(--bg);border:1px solid var(--border2);color:var(--text);padding:7px 10px;font-family:'Share Tech Mono',monospace;font-size:.72rem;border-radius:4px;outline:none}
.chat-key-row button{background:var(--green);color:#000;border:none;padding:6px 12px;font-weight:700;font-size:.72rem;border-radius:4px;cursor:pointer}
.chat-messages{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:9px}
.chat-msg{display:flex;flex-direction:column;gap:3px}
.chat-msg.user{align-items:flex-end}
.chat-msg.assistant{align-items:flex-start}
.msg-bubble{max-width:86%;padding:9px 13px;border-radius:6px;font-size:.83rem;line-height:1.6}
.user .msg-bubble{background:rgba(0,255,136,.12);color:var(--text);border:1px solid rgba(0,255,136,.2)}
.assistant .msg-bubble{background:var(--surface2);color:var(--text);border:1px solid var(--border)}
.speak-btn{background:none;border:none;color:var(--text3);cursor:pointer;padding:2px 4px;font-size:.68rem;display:flex;gap:3px;align-items:center}
.speak-btn:hover{color:var(--green)}
.typing-indicator{display:flex;gap:4px;padding:10px 13px;align-items:center}
.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--text3);animation:typing 1.2s infinite}
.typing-dot:nth-child(2){animation-delay:.2s}
.typing-dot:nth-child(3){animation-delay:.4s}
.chat-input-row{padding:9px 11px;border-top:1px solid var(--border);display:flex;gap:7px;flex-shrink:0}
.chat-input-row input{flex:1;background:var(--bg);border:1px solid var(--border2);color:var(--text);padding:8px 11px;font-family:'Rajdhani',sans-serif;font-size:.88rem;border-radius:4px;outline:none}
.chat-input-row input:focus{border-color:var(--green)}
.chat-send{background:var(--green);color:#000;border:none;padding:8px 13px;border-radius:4px;cursor:pointer;font-weight:700;font-size:.78rem;transition:all .2s}
.chat-send:hover{background:#00cc6e}
.chat-error{color:var(--red);font-size:.75rem;padding:5px 11px;font-family:'Share Tech Mono',monospace}

/* ── ANIMATIONS ── */
@keyframes pulse-green{0%,100%{box-shadow:0 0 8px var(--green)}50%{box-shadow:0 0 20px var(--green),0 0 40px rgba(0,255,136,.4)}}
@keyframes pulse-yellow{0%,100%{box-shadow:0 0 8px var(--yellow)}50%{box-shadow:0 0 20px var(--yellow),0 0 40px rgba(255,204,0,.4)}}
@keyframes flash-red{0%,49%{opacity:1;box-shadow:0 0 20px var(--red)}50%,100%{opacity:.15;box-shadow:none}}
@keyframes typing{0%,100%{opacity:.3;transform:translateY(0)}50%{opacity:1;transform:translateY(-3px)}}
@keyframes reveal{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.reveal{opacity:0}
.revealed{animation:reveal .55s ease forwards}

/* ── RESPONSIVE ── */
@media(max-width:920px){
  #sidebar{transform:translateX(-100%)}
  #sidebar.mobile-open{transform:none}
  #topbar{display:flex}
  #main{margin-left:0!important;padding-top:52px}
  #collapse-btn{display:none}
  .page-hero{padding:50px 28px 40px}
  .page-content{padding:40px 28px}
  .grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
  .grid-3{grid-template-columns:1fr}
  .page-title{font-size:2rem}
  #lightbox{padding:12px}
  .hero-panel,.signal-card,.doc-card{padding-left:20px}
}
@media(max-width:480px){
  #topbar{padding:0 12px;gap:8px}
  #topbar-title{font-size:.74rem;letter-spacing:.06em}
  .page-hero{padding:42px 16px 34px}
  .page-content{padding:28px 16px}
  .page-label{font-size:.62rem;letter-spacing:.18em}
  .page-title{font-size:clamp(1.75rem,9vw,2rem)}
  .section-intro{gap:14px;margin-bottom:18px}
  .trace-title{gap:10px;align-items:flex-start}
  .trace-title::before{width:28px}
  .doc-link-row{flex-direction:column;align-items:stretch}
  .doc-link-row>*{width:100%}
  .btn-primary,.btn-secondary,.btn-outline,.link-chip{width:100%;justify-content:center}
  .hero-panel,.doc-card,.signal-card,.card{padding:18px 16px}
  .media-body{padding:16px}
  .media-thumb{max-height:240px;padding:8px}
  .image-rack img{max-height:220px;padding:8px}
  #lightbox-actions{left:12px;right:12px;justify-content:space-between;gap:8px}
  #lightbox-download{min-width:0;flex:1}
  #lightbox-caption{padding:12px 14px;font-size:.76rem}
  #chat-btn{right:16px;bottom:16px;width:46px;height:46px}
  #chat-panel{left:10px;right:10px;bottom:70px;width:auto}
  .chat-input-row{flex-wrap:wrap}
  .chat-send{width:100%;justify-content:center}
}