*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#080c0f;--bg1:#0d1117;--bg2:#131920;--bg3:#1a2230;
  --border:#1e2a38;--border2:#243040;
  --cyan:#00d4ff;--cyan-dim:#005a70;--cyan-glow:#00d4ff22;
  --green:#00e5a0;--amber:#ffb830;--red:#ff4d6a;--violet:#9b6dff;
  --text:#dce8f0;--text2:#7a9ab0;--text3:#3d5a70;
  --mono:'JetBrains Mono',monospace;--display:'Syne',sans-serif;
}
html{font-size:14px}
body{background:var(--bg);color:var(--text);font-family:var(--mono);min-height:100vh;overflow-x:hidden;}

/* grain overlay */
body::after{
  content:'';position:fixed;inset:0;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events:none;z-index:9998;
}

/* TOPBAR */
#topbar{
  position:sticky;top:0;z-index:200;background:var(--bg);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 28px;height:52px;
}
.logo{font-family:var(--display);font-weight:800;font-size:16px;letter-spacing:.06em;color:var(--text);}
.logo em{color:var(--cyan);font-style:normal;}
.topbar-r{display:flex;align-items:center;gap:18px;}
.pill{font-size:10px;letter-spacing:.1em;text-transform:uppercase;padding:3px 10px;border:1px solid var(--border2);color:var(--text3);}
.pill.live{border-color:var(--cyan-dim);color:var(--cyan);}
.pill.live::before{content:'● ';animation:blink 2s infinite;}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
#last-sync{font-size:11px;color:var(--text3);}
#refresh-btn{background:transparent;border:1px solid var(--border2);color:var(--text3);font-family:var(--mono);font-size:11px;padding:5px 12px;cursor:pointer;letter-spacing:.06em;transition:all .15s;}
#refresh-btn:hover{border-color:var(--cyan);color:var(--cyan);}

/* NAV */
#nav{display:flex;border-bottom:1px solid var(--border);padding:0 28px;background:var(--bg);overflow-x:auto;}
.nav-tab{font-size:11px;letter-spacing:.1em;text-transform:uppercase;padding:14px 18px;cursor:pointer;color:var(--text3);border-bottom:2px solid transparent;white-space:nowrap;transition:all .15s;user-select:none;flex-shrink:0;}
.nav-tab:hover{color:var(--text2);}
.nav-tab.active{color:var(--cyan);border-bottom-color:var(--cyan);}

/* MAIN */
#main{padding:28px;max-width:1440px;margin:0 auto;}

/* DEMO BANNER */
#demo-banner{background:linear-gradient(90deg,#00d4ff10,#00d4ff04);border:1px solid var(--cyan-dim);padding:8px 20px;margin-bottom:20px;font-size:11px;letter-spacing:.06em;color:var(--cyan);display:flex;justify-content:space-between;align-items:center;}
#demo-banner button{background:transparent;border:none;color:var(--text3);cursor:pointer;font-size:16px;}

/* STAT CARDS */
.stat-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:24px;}
.stat-card{background:var(--bg1);padding:16px 18px;position:relative;overflow:hidden;transition:background .2s;}
.stat-card:hover{background:var(--bg2);}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .3s;}
.stat-card:hover::before{transform:scaleX(1);}
.sc-label{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text3);margin-bottom:8px;}
.sc-val{font-family:var(--display);font-size:26px;font-weight:700;color:var(--text);line-height:1;}
.sc-sub{font-size:11px;color:var(--text3);margin-top:5px;}
.sc-delta{font-size:11px;margin-top:5px;}
.sc-delta.up{color:var(--green);}
.sc-delta.down{color:var(--red);}

/* SECTION */
.sec{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--text3);margin:0 0 14px;display:flex;align-items:center;gap:10px;}
.sec::after{content:'';flex:1;height:1px;background:var(--border);}
.sec span{color:var(--cyan);}

/* PANEL */
.panel{background:var(--bg1);border:1px solid var(--border);padding:20px;}
.panel-hdr{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.panel-title{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text2);}
.panel-tag{font-size:10px;color:var(--text3);border:1px solid var(--border2);padding:2px 7px;letter-spacing:.06em;}
.chart-wrap{position:relative;}
.h140{height:140px}.h180{height:180px}.h220{height:220px}.h260{height:260px}

/* GRIDS */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:24px;}
.g3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;margin-bottom:24px;}
.g-auto{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;margin-bottom:24px;}
@media(max-width:900px){.g2,.g3{grid-template-columns:1fr;}}

/* TABLE */
.tpanel{background:var(--bg1);border:1px solid var(--border);margin-bottom:24px;}
.tpanel-hdr{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border);flex-wrap:wrap;gap:8px;}
table{width:100%;border-collapse:collapse;}
thead th{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--text3);text-align:left;padding:9px 20px;border-bottom:1px solid var(--border);white-space:nowrap;cursor:pointer;user-select:none;}
thead th:hover{color:var(--cyan);}
thead th.sorted{color:var(--cyan);}
tbody tr{border-bottom:1px solid var(--border);transition:background .1s;}
tbody tr:last-child{border-bottom:none;}
tbody tr:hover{background:var(--bg2);}
tbody td{font-size:12px;padding:9px 20px;color:var(--text2);white-space:nowrap;}
.td-hl{color:var(--text);}
.td-cyan{color:var(--cyan);}
.td-amber{color:var(--amber);}
.td-green{color:var(--green);}
.td-dim{color:var(--text3);}
.badge{font-size:10px;letter-spacing:.06em;padding:2px 8px;background:var(--bg3);color:var(--text3);border:1px solid var(--border2);}

/* CONTROLS */
.search-box,.fsel{font-family:var(--mono);font-size:12px;background:var(--bg2);border:1px solid var(--border2);color:var(--text);padding:6px 10px;outline:none;transition:border-color .15s;}
.search-box::placeholder{color:var(--text3);}
.search-box:focus,.fsel:focus{border-color:var(--cyan);}
.search-box{width:190px;}
option{background:var(--bg2);}
.tctl{display:flex;gap:8px;align-items:center;flex-wrap:wrap;}

/* PAGER */
.pager{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;border-top:1px solid var(--border);font-size:11px;color:var(--text3);}
.page-btns{display:flex;gap:4px;}
.pbtn{background:transparent;border:1px solid var(--border2);color:var(--text3);padding:3px 10px;cursor:pointer;font-family:var(--mono);font-size:11px;transition:all .15s;}
.pbtn:hover,.pbtn.active{border-color:var(--cyan);color:var(--cyan);}
.pbtn:disabled{opacity:.25;cursor:default;}

/* TAB VIEWS */
.tab-view{display:none;}
.tab-view.active{display:block;}

/* BODY TAB */
.body-grid{display:grid;grid-template-columns:280px 1fr;gap:16px;margin-bottom:24px;}
@media(max-width:800px){.body-grid{grid-template-columns:1fr;}}
.silhouette-panel{background:var(--bg1);border:1px solid var(--border);padding:0 20px 20px;}
.bf-ring-wrap{display:flex;flex-direction:column;align-items:center;padding:24px 0 16px;gap:6px;border-bottom:1px solid var(--border);margin-bottom:8px;}
.bf-ring-label{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text3);}
.bf-value{font-family:var(--display);font-size:40px;font-weight:800;color:var(--cyan);line-height:1;}
.bf-sub{font-size:11px;color:var(--text3);}
.meas-row{display:flex;align-items:center;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--border);}
.meas-row:last-child{border-bottom:none;}
.meas-name{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text3);}
.meas-val-big{font-family:var(--display);font-size:17px;font-weight:700;color:var(--text);}
.meas-unit{font-size:10px;color:var(--text3);margin-left:2px;}

/* CARDIO */
.cardio-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:24px;}
.cc{background:var(--bg1);padding:14px 16px;transition:background .15s;}
.cc:hover{background:var(--bg2);}
.cc-icon{font-size:18px;margin-bottom:6px;}
.cc-label{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--text3);margin-bottom:4px;}
.cc-val{font-family:var(--display);font-size:22px;font-weight:700;color:var(--text);}
.cc-unit{font-size:11px;color:var(--text3);}

/* SEGMENT CARDS */
.seg-card{background:var(--bg1);border:1px solid var(--border);padding:16px;}
.seg-name{font-size:13px;color:var(--text);font-weight:500;margin-bottom:10px;}
.seg-meta{display:flex;gap:16px;flex-wrap:wrap;}
.seg-stat{display:flex;flex-direction:column;gap:2px;}
.seg-stat-label{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text3);}
.seg-stat-val{font-size:13px;color:var(--cyan);}

/* PR CARDS */
.pr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:24px;}
.pr-card{background:var(--bg1);padding:16px;transition:background .15s;}
.pr-card:hover{background:var(--bg2);}
.pr-ex{font-size:12px;color:var(--text);font-weight:500;margin-bottom:8px;}
.pr-w{font-family:var(--display);font-size:24px;font-weight:700;color:var(--amber);}
.pr-w span{font-size:11px;color:var(--text3);}
.pr-meta{font-size:10px;color:var(--text3);margin-top:4px;}

/* LOADING */
.loading-bar{height:2px;background:var(--border);overflow:hidden;margin-bottom:20px;}
.loading-bar::after{content:'';display:block;height:100%;width:30%;background:linear-gradient(90deg,transparent,var(--cyan),transparent);animation:slide 1.1s ease-in-out infinite;}
@keyframes slide{0%{transform:translateX(-100%)}100%{transform:translateX(430%)}}

/* PROFILE TAB */
.profile-grid{display:grid;grid-template-columns:320px 1fr;gap:20px;margin-bottom:24px;}
@media(max-width:860px){.profile-grid{grid-template-columns:1fr;}}

.profile-card{
  background:var(--bg1);border:1px solid var(--border);
  padding:28px 24px;display:flex;flex-direction:column;align-items:center;gap:20px;
}
.avatar-ring{
  width:80px;height:80px;border-radius:50%;
  border:2px solid var(--cyan-dim);
  background:var(--bg3);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--display);font-size:28px;font-weight:800;color:var(--cyan);
  position:relative;
}
.avatar-ring::after{
  content:'';position:absolute;inset:-5px;border-radius:50%;
  border:1px solid var(--cyan-dim);
  animation:ring-pulse 3s ease-in-out infinite;
}
@keyframes ring-pulse{0%,100%{opacity:.4;transform:scale(1)}50%{opacity:.9;transform:scale(1.04)}}
.profile-username{
  font-family:var(--display);font-size:22px;font-weight:800;
  color:var(--text);letter-spacing:.02em;text-align:center;
}
.profile-username span{color:var(--cyan);}
.profile-age-badge{
  font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  padding:4px 14px;border:1px solid var(--border2);color:var(--text3);
}

.profile-input-group{width:100%;}
.pil{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text3);margin-bottom:6px;display:block;}
.pinput{
  width:100%;font-family:var(--mono);font-size:13px;
  background:var(--bg2);border:1px solid var(--border2);
  color:var(--text);padding:8px 12px;outline:none;transition:border-color .15s;
}
.pinput:focus{border-color:var(--cyan);}
.pinput::placeholder{color:var(--text3);}
.prow{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%;}

.gender-toggle{display:flex;gap:0;width:100%;}
.gender-btn{
  flex:1;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  padding:8px;background:var(--bg2);border:1px solid var(--border2);
  color:var(--text3);cursor:pointer;transition:all .15s;
}
.gender-btn:first-child{border-right:none;}
.gender-btn.active{background:var(--cyan-dim);border-color:var(--cyan);color:var(--cyan);}

.save-btn{
  width:100%;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  padding:10px;background:transparent;border:1px solid var(--cyan-dim);
  color:var(--cyan);cursor:pointer;transition:all .2s;
}
.save-btn:hover{background:var(--cyan-dim);}
.save-notice{font-size:10px;color:var(--green);letter-spacing:.08em;opacity:0;transition:opacity .4s;}
.save-notice.show{opacity:1;}

/* METRIC PANELS */
.metrics-col{display:flex;flex-direction:column;gap:16px;}

.metric-hero{
  background:var(--bg1);border:1px solid var(--border);
  padding:20px 24px;
  display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));
  gap:1px;background-color:var(--border);
}
.mh-cell{
  background:var(--bg1);padding:18px 20px;
  position:relative;overflow:hidden;
}
.mh-cell::before{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--border2);}
.mh-label{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text3);margin-bottom:10px;}
.mh-val{font-family:var(--display);font-weight:800;color:var(--text);line-height:1;}
.mh-val.big{font-size:34px;}
.mh-val.med{font-size:24px;}
.mh-unit{font-size:11px;color:var(--text3);margin-top:4px;}
.mh-formula{font-size:10px;color:var(--text3);margin-top:6px;letter-spacing:.04em;line-height:1.5;}

/* BMI gauge */
.bmi-gauge-wrap{margin-top:10px;}
.bmi-gauge-track{
  height:6px;background:var(--bg3);border-radius:3px;
  position:relative;overflow:visible;
  background:linear-gradient(to right,#5bc0de 0%,#5bc0de 18%,#00e5a0 18%,#00e5a0 32%,#ffb830 32%,#ffb830 42%,#ff4d6a 42%,#ff4d6a 100%);
}
.bmi-needle{
  position:absolute;top:-4px;width:2px;height:14px;
  background:var(--text);border-radius:1px;
  transform:translateX(-50%);transition:left .6s cubic-bezier(.34,1.56,.64,1);
}
.bmi-labels{display:flex;justify-content:space-between;margin-top:4px;font-size:9px;color:var(--text3);letter-spacing:.04em;}
.bmi-category-badge{
  display:inline-block;margin-top:8px;
  font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  padding:3px 10px;border:1px solid;
}
.bmi-cat-under{color:#5bc0de;border-color:#5bc0de44;}
.bmi-cat-normal{color:var(--green);border-color:#00e5a044;}
.bmi-cat-over{color:var(--amber);border-color:#ffb83044;}
.bmi-cat-obese{color:var(--red);border-color:#ff4d6a44;}

/* Activity selector */
.activity-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));
  gap:8px;margin-top:4px;
}
.act-btn{
  font-family:var(--mono);font-size:10px;letter-spacing:.06em;
  padding:10px 8px;text-align:center;
  background:var(--bg2);border:1px solid var(--border2);
  color:var(--text3);cursor:pointer;transition:all .15s;
  line-height:1.4;
}
.act-btn:hover{border-color:var(--border2);color:var(--text2);}
.act-btn.active{background:var(--cyan-glow);border-color:var(--cyan);color:var(--cyan);}
.act-btn strong{display:block;font-size:12px;margin-bottom:3px;font-family:var(--display);font-weight:700;}

/* TDEE breakdown */
.tdee-breakdown{
  background:var(--bg1);border:1px solid var(--border);padding:20px 24px;
}
.tdee-main{font-family:var(--display);font-size:42px;font-weight:800;color:var(--amber);line-height:1;}
.tdee-unit{font-size:13px;color:var(--text3);margin-top:4px;}
.tdee-bars{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.tbar-row{display:flex;align-items:center;gap:10px;}
.tbar-label{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text3);width:70px;flex-shrink:0;}
.tbar-track{flex:1;height:4px;background:var(--bg3);}
.tbar-fill{height:100%;transition:width .6s ease;}
.tbar-val{font-family:var(--mono);font-size:11px;color:var(--text2);width:64px;text-align:right;flex-shrink:0;}
.tdee-goals{
  margin-top:16px;border-top:1px solid var(--border);padding-top:16px;
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;
}
.tgoal{text-align:center;}
.tgoal-label{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text3);margin-bottom:4px;}
.tgoal-val{font-family:var(--display);font-size:18px;font-weight:700;color:var(--text);}
.tgoal-sub{font-size:10px;color:var(--text3);margin-top:2px;}