/* ═══════════════════════════════════════════════
   HealthSync — styles.css
   Theme: Apple Fitness × Dark Premium × Animated
═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=Instrument+Serif:ital@0;1&display=swap');

/* ── TOKENS ──────────────────────────────────── */
:root {
  --bg-base:       #000000;
  --bg-surface:    #0a0a0a;
  --bg-card:       #111111;
  --bg-elevated:   #1a1a1a;
  --bg-glass:      rgba(255,255,255,0.04);
  --border:        rgba(255,255,255,0.08);
  --border-bright: rgba(255,255,255,0.16);
  --text-primary:  #f5f5f7;
  --text-secondary:#a1a1a6;
  --text-tertiary: #6e6e73;

  /* Apple activity colors */
  --ring-move:     #ff375f;
  --ring-exercise: #30d158;
  --ring-stand:    #40c8e0;

  --primary:       #ff375f;
  --success:       #30d158;
  --warning:       #ff9f0a;
  --destructive:   #ff453a;
  --info:          #40c8e0;
  --purple:        #bf5af2;

  --sidebar-w:   240px;
  --topbar-h:    68px;
  --radius:      14px;
  --radius-sm:   9px;
  --radius-lg:   20px;

  --shadow:      0 2px 24px rgba(0,0,0,.7);
  --shadow-lg:   0 12px 56px rgba(0,0,0,.85);

  --ease:        cubic-bezier(.4,0,.2,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);
  --t-fast:      .14s;
  --t-med:       .24s;
  --t-slow:      .4s;
}

[data-theme="light"] {
  --bg-base:       #f2f2f7;
  --bg-surface:    #ffffff;
  --bg-card:       #ffffff;
  --bg-elevated:   #f2f2f7;
  --bg-glass:      rgba(0,0,0,.03);
  --border:        rgba(0,0,0,.08);
  --border-bright: rgba(0,0,0,.15);
  --text-primary:  #1d1d1f;
  --text-secondary:#6e6e73;
  --text-tertiary: #aeaeb2;
  --shadow:        0 2px 20px rgba(0,0,0,.08);
  --shadow-lg:     0 12px 48px rgba(0,0,0,.12);
}

/* ── RESET ───────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  font-family:'DM Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--bg-base);
  color:var(--text-primary);
  display:flex;
  min-height:100vh;
  transition:background var(--t-slow) var(--ease),color var(--t-slow) var(--ease);
  overflow-x:hidden;
}

/* ── SIDEBAR ─────────────────────────────────── */
.sidebar{
  position:fixed;top:0;left:0;
  width:var(--sidebar-w);height:100vh;
  background:var(--bg-surface);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  padding:1.5rem .875rem;
  z-index:100;
  transition:transform var(--t-med) var(--ease),background var(--t-slow) var(--ease);
}

.sidebar-brand{
  display:flex;align-items:center;gap:.6rem;
  padding:.25rem .5rem;margin-bottom:2rem;
}
.brand-icon{
  width:30px;height:30px;
  background:linear-gradient(135deg,var(--ring-move),var(--purple));
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:.95rem;flex-shrink:0;
  box-shadow:0 4px 12px rgba(255,55,95,.4);
}
.brand-name{
  font-family:'Instrument Serif',serif;
  font-size:1.2rem;font-weight:400;
  color:var(--text-primary);letter-spacing:-.02em;
}

.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px}

.nav-item{
  display:flex;align-items:center;gap:.75rem;
  padding:.6rem .75rem;border-radius:var(--radius-sm);
  text-decoration:none;color:var(--text-secondary);
  font-size:.875rem;font-weight:500;
  transition:all var(--t-fast) var(--ease);cursor:pointer;
  position:relative;
}
.nav-item::before{
  content:'';position:absolute;
  left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;
  background:var(--primary);border-radius:0 2px 2px 0;
  transition:height var(--t-fast) var(--ease);
}
.nav-item:hover{color:var(--text-primary);background:var(--bg-glass)}
.nav-item.active{color:var(--text-primary);background:var(--bg-elevated);font-weight:600}
.nav-item.active::before{height:55%}
.nav-icon{font-size:1rem;width:1.1rem;text-align:center;flex-shrink:0}

.sidebar-bottom{padding-top:1rem;border-top:1px solid var(--border)}
.theme-toggle{
  background:var(--bg-glass);border:1px solid var(--border);
  border-radius:var(--radius-sm);
  width:2.25rem;height:2.25rem;font-size:1rem;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all var(--t-fast) var(--ease);color:var(--text-secondary);
}
.theme-toggle:hover{background:var(--bg-elevated);color:var(--text-primary)}

/* ── MAIN CONTENT ────────────────────────────── */
.main-content{
  margin-left:var(--sidebar-w);flex:1;
  display:flex;flex-direction:column;min-height:100vh;
  position:relative;z-index:1;
}

/* ── TOPBAR ──────────────────────────────────── */
.topbar{
  position:sticky;top:0;z-index:90;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 1.75rem;height:var(--topbar-h);
  background:rgba(0,0,0,.75);
  backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid var(--border);gap:1rem;
}
[data-theme="light"] .topbar{background:rgba(242,242,247,.85)}

.topbar-left{display:flex;align-items:center;gap:1rem}
.topbar-right{display:flex;align-items:center;gap:.875rem;flex-wrap:wrap;justify-content:flex-end}

.burger{
  display:none;background:none;border:none;
  font-size:1.2rem;cursor:pointer;color:var(--text-primary);
}
.page-title{
  font-family:'Instrument Serif',serif;
  font-size:1.35rem;font-weight:400;
  letter-spacing:-.02em;color:var(--text-primary);
}
.page-sub{font-size:.72rem;color:var(--text-tertiary);margin-top:1px}

.live-badge{
  display:flex;align-items:center;gap:.4rem;
  background:rgba(48,209,88,.1);color:var(--success);
  border:1px solid rgba(48,209,88,.2);
  padding:.25rem .75rem;border-radius:2rem;
  font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  transition:all var(--t-med) var(--ease);
}
.live-badge.offline{
  background:rgba(255,255,255,.04);color:var(--text-tertiary);
  border-color:var(--border);
}
.live-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--success);flex-shrink:0;
  animation:livePulse 2s infinite;
}
@keyframes livePulse{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(48,209,88,.5)}
  50%{opacity:.7;box-shadow:0 0 0 4px rgba(48,209,88,0)}
}
.live-badge.offline .live-dot{animation:none;background:var(--text-tertiary);box-shadow:none}

.last-update{font-size:.72rem;color:var(--text-tertiary);white-space:nowrap}

.export-btn{
  padding:.375rem .875rem;
  background:var(--bg-elevated);color:var(--text-primary);
  border:1px solid var(--border-bright);border-radius:var(--radius-sm);
  font-size:.78rem;font-weight:600;cursor:pointer;
  transition:all var(--t-fast) var(--ease);font-family:inherit;
}
.export-btn:hover{transform:translateY(-1px);border-color:var(--border-bright)}

/* ── SECTIONS ────────────────────────────────── */
.section{display:none;padding:1.75rem;animation:fadeUp .3s var(--ease)}
.section.active{display:block}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(14px)}
  to{opacity:1;transform:translateY(0)}
}

/* ── KPI GRID ────────────────────────────────── */
.kpi-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:.875rem;margin-bottom:1.25rem;
}

.kpi-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:1.375rem 1.5rem;
  position:relative;overflow:hidden;
  transition:transform var(--t-med) var(--ease-spring),box-shadow var(--t-med) var(--ease),border-color var(--t-med) var(--ease);
}
/* Top shimmer line */
.kpi-card::after{
  content:'';position:absolute;
  top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,55,95,.5),transparent);
}
/* Hover glow */
.kpi-card::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 50% 0%,rgba(255,55,95,.07) 0%,transparent 70%);
  opacity:0;transition:opacity var(--t-slow) var(--ease);
}
.kpi-card:hover{transform:translateY(-3px) scale(1.01);box-shadow:var(--shadow-lg);border-color:var(--border-bright)}
.kpi-card:hover::before{opacity:1}
#card-bpm::after  {background:linear-gradient(90deg,transparent,rgba(255,55,95,.5),transparent)}
#card-bmi::after  {background:linear-gradient(90deg,transparent,rgba(48,209,88,.5),transparent)}
#card-goal::after {background:linear-gradient(90deg,transparent,rgba(64,200,224,.5),transparent)}
#card-goal{cursor:pointer}

.kpi-label{font-size:.68rem;font-weight:700;letter-spacing:.09em;color:var(--text-tertiary);text-transform:uppercase;margin-bottom:.5rem}
.kpi-value{
  font-family:'Instrument Serif',serif;
  font-size:3rem;line-height:1;letter-spacing:-.04em;
  color:var(--text-primary);transition:color .3s ease;
}
.kpi-unit{font-size:.75rem;color:var(--text-tertiary);margin-top:.3rem}
.kpi-trend{font-size:.78rem;margin-top:.5rem;font-weight:700}
.kpi-trend.up{color:var(--ring-move)}
.kpi-trend.down{color:var(--success)}

/* BMI bar */
.bmi-bar-wrap{height:3px;background:rgba(255,255,255,.06);border-radius:2px;margin-top:.875rem;overflow:hidden}
.bmi-bar{height:100%;border-radius:2px;width:0%;transition:width .8s var(--ease),background .4s}

.bmi-underweight .kpi-value{color:var(--info)}
.bmi-underweight .kpi-card::after,.bmi-underweight .bmi-bar{background:var(--info)}
.bmi-normal .kpi-value{color:var(--success)}
.bmi-normal .kpi-card::after,.bmi-normal .bmi-bar{background:var(--success)}
.bmi-overweight .kpi-value{color:var(--warning)}
.bmi-overweight .kpi-card::after,.bmi-overweight .bmi-bar{background:var(--warning)}
.bmi-obese .kpi-value{color:var(--destructive)}
.bmi-obese .kpi-card::after,.bmi-obese .bmi-bar{background:var(--destructive)}

/* ── MINI CHARTS ─────────────────────────────── */
.mini-charts-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.875rem}
.mini-chart-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:1rem 1.25rem;
  height:160px;display:flex;flex-direction:column;
  transition:border-color var(--t-med) var(--ease);
}
.mini-chart-card:hover{border-color:var(--border-bright)}
.mini-chart-label{font-size:.68rem;color:var(--text-tertiary);font-weight:700;text-transform:uppercase;letter-spacing:.07em;margin-bottom:.5rem}
.mini-chart-card canvas{flex:1;min-height:0}

/* ── CHART GRID ──────────────────────────────── */
.chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:.875rem}
.chart-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:1.375rem 1.5rem;
  transition:border-color var(--t-med) var(--ease);
}
.chart-card:hover{border-color:var(--border-bright)}
.chart-card.full-width{grid-column:1/-1}
.chart-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.chart-title{font-weight:600;font-size:.875rem;color:var(--text-primary)}
.chart-badge{
  background:var(--bg-elevated);border:1px solid var(--border);
  border-radius:2rem;padding:.2rem .65rem;
  font-size:.68rem;font-weight:700;letter-spacing:.05em;color:var(--text-tertiary);
}

/* ── WORKOUT CONTROLS ────────────────────────── */
.workout-controls{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1.5rem;align-items:center}
.age-group-tabs,.workout-cat-tabs{display:flex;gap:.375rem;flex-wrap:wrap}

.age-tab,.cat-tab{
  padding:.4rem .875rem;border-radius:2rem;
  border:1px solid var(--border);background:var(--bg-card);
  font-size:.78rem;font-weight:600;cursor:pointer;
  color:var(--text-secondary);transition:all var(--t-fast) var(--ease);font-family:inherit;
}
.age-tab:hover,.cat-tab:hover{border-color:var(--border-bright);color:var(--text-primary);background:var(--bg-elevated)}
.age-tab.active,.cat-tab.active{background:var(--text-primary);border-color:var(--text-primary);color:var(--bg-base)}
[data-theme="light"] .age-tab.active,
[data-theme="light"] .cat-tab.active{color:#fff;background:#1d1d1f;border-color:#1d1d1f}

.section-label{font-size:.68rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--text-tertiary);margin-bottom:.875rem}

/* ── WORKOUT GRID ────────────────────────────── */
.workout-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}

/* ═══════════════════════════════════════════════
   APPLE FITNESS × MAC-STYLE WORKOUT CARD
═══════════════════════════════════════════════ */
.workout-card{
  width:100%;
  background:#111111;
  border:1px solid rgba(255,255,255,0.08);
  border-radius:14px;
  padding:1.25rem;
  cursor:pointer;
  position:relative;
  font-family:-apple-system,BlinkMacSystemFont,'DM Sans',sans-serif;
  overflow:hidden;
  animation:cardAppear .35s var(--ease) both;
  transition:transform .2s var(--ease-spring),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
[data-theme="light"] .workout-card{background:#ffffff;border-color:rgba(0,0,0,.08)}

@keyframes cardAppear{
  from{opacity:0;transform:translateY(10px) scale(.98)}
  to{opacity:1;transform:translateY(0) scale(1)}
}
.workout-card:nth-child(1){animation-delay:.03s}
.workout-card:nth-child(2){animation-delay:.06s}
.workout-card:nth-child(3){animation-delay:.09s}
.workout-card:nth-child(4){animation-delay:.12s}
.workout-card:nth-child(5){animation-delay:.15s}
.workout-card:nth-child(6){animation-delay:.18s}
.workout-card:nth-child(7){animation-delay:.21s}
.workout-card:nth-child(8){animation-delay:.24s}

/* Top shimmer */
.workout-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.15) 50%,transparent 100%);
}
/* Glow sweep on hover */
.workout-card::after{
  content:'';position:absolute;inset:0;border-radius:14px;
  background:radial-gradient(ellipse at 50% 110%,rgba(255,255,255,.05) 0%,transparent 70%);
  opacity:0;transition:opacity .3s ease;pointer-events:none;
}
.workout-card:hover{transform:translateY(-6px) scale(1.015);border-color:rgba(255,255,255,.14)}
.workout-card:hover::after{opacity:1}

/* Category-specific hover glows */
.workout-card[data-cat="cardio"]:hover  {box-shadow:0 14px 42px rgba(0,0,0,.6),0 0 24px rgba(255,55,95,.18)}
.workout-card[data-cat="muscle"]:hover  {box-shadow:0 14px 42px rgba(0,0,0,.6),0 0 24px rgba(64,200,224,.18)}
.workout-card[data-cat="fatloss"]:hover {box-shadow:0 14px 42px rgba(0,0,0,.6),0 0 24px rgba(255,159,10,.18)}
.workout-card[data-cat="flex"]:hover    {box-shadow:0 14px 42px rgba(0,0,0,.6),0 0 24px rgba(191,90,242,.18)}
[data-theme="light"] .workout-card:hover{box-shadow:0 14px 42px rgba(0,0,0,.12) !important}

/* Mac traffic lights */
.mac-header{display:flex;align-items:center;gap:6px;margin-bottom:1rem}
.mac-header span{display:inline-block;width:11px;height:11px;border-radius:50%;transition:filter .2s ease,transform .2s var(--ease-spring)}
.mac-header .red   {background:#ff5f57;box-shadow:0 0 5px rgba(255,95,87,.5)}
.mac-header .yellow{background:#ffbd2e;box-shadow:0 0 5px rgba(255,189,46,.5)}
.mac-header .green {background:#28c941;box-shadow:0 0 5px rgba(40,201,65,.5)}
.workout-card:hover .mac-header .red   {filter:brightness(1.25);transform:scale(1.1)}
.workout-card:hover .mac-header .yellow{filter:brightness(1.25);transform:scale(1.1)}
.workout-card:hover .mac-header .green {filter:brightness(1.25);transform:scale(1.1)}

/* Category badge */
.workout-card-cat{
  display:inline-block;font-size:.62rem;border-radius:5px;
  background:#0d1117;padding:3px 8px;margin-bottom:.625rem;
  color:#dcdcdc;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
}
[data-theme="light"] .workout-card-cat{background:#f0f0f5;color:#555}
.workout-card[data-cat="cardio"]  .workout-card-cat{background:rgba(255,55,95,.15);color:#ff375f}
.workout-card[data-cat="muscle"]  .workout-card-cat{background:rgba(64,200,224,.15);color:#40c8e0}
.workout-card[data-cat="fatloss"] .workout-card-cat{background:rgba(255,159,10,.15);color:#ff9f0a}
.workout-card[data-cat="flex"]    .workout-card-cat{background:rgba(191,90,242,.15);color:#bf5af2}

.workout-card-name{font-size:1rem;font-weight:700;color:#e6e6ef;margin-bottom:.375rem;letter-spacing:-.01em}
[data-theme="light"] .workout-card-name{color:#1d1d1f}
.workout-card-desc{font-size:.8rem;color:#666;margin-bottom:.875rem;line-height:1.55}
[data-theme="light"] .workout-card-desc{color:#6e6e73}

.workout-card-meta{display:flex;gap:.375rem;flex-wrap:wrap}
.workout-tag{
  display:inline-block;font-size:.68rem;border-radius:5px;
  background:#0d1117;padding:3px 8px;
  color:#dcdcdc;font-weight:600;letter-spacing:.02em;
}
[data-theme="light"] .workout-tag{background:#f0f0f5;color:#444}

/* ── INSIGHTS ────────────────────────────────── */
.insights-list{display:flex;flex-direction:column;gap:.75rem}
.insight-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-left:3px solid var(--primary);
  border-radius:var(--radius);padding:1rem 1.375rem;
  font-size:.875rem;line-height:1.6;
  animation:fadeUp .25s var(--ease);
}
.insight-card.good  {border-left-color:var(--success)}
.insight-card.warn  {border-left-color:var(--warning)}
.insight-card.danger{border-left-color:var(--destructive)}
.insight-card.info  {border-left-color:var(--info)}
.insight-title{font-weight:700;margin-bottom:.25rem;color:var(--text-primary)}
.insight-placeholder{color:var(--text-tertiary);font-size:.875rem;padding:.5rem 0}

/* ── WEEKLY SUMMARY ──────────────────────────── */
.weekly-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.875rem}
.weekly-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:1rem 1.25rem;text-align:center;
  transition:border-color var(--t-med) var(--ease);
}
.weekly-card:hover{border-color:var(--border-bright)}
.weekly-label{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-tertiary);margin-bottom:.4rem}
.weekly-val{font-family:'Instrument Serif',serif;font-size:1.75rem;color:var(--text-primary)}

/* ── PROFILE ─────────────────────────────────── */
.profile-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:2rem;box-shadow:var(--shadow);
}
.profile-heading{font-family:'Instrument Serif',serif;font-size:1.5rem;font-weight:400;margin-bottom:1.75rem;color:var(--text-primary)}
.input-group{margin-bottom:1.25rem}
.input-label{display:block;font-size:.72rem;font-weight:700;color:var(--text-tertiary);margin-bottom:.4rem;text-transform:uppercase;letter-spacing:.06em}
.input-row{display:flex;gap:.5rem}
.input-field{
  width:100%;padding:.65rem .875rem;
  background:var(--bg-elevated);border:1px solid var(--border);
  border-radius:var(--radius-sm);font-size:.9rem;
  color:var(--text-primary);font-family:inherit;
  transition:border-color var(--t-fast) var(--ease);outline:none;
}
.input-field:focus{border-color:var(--border-bright)}
.input-select{
  padding:.65rem .875rem;background:var(--bg-elevated);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  color:var(--text-primary);font-family:inherit;font-size:.875rem;cursor:pointer;
}
.save-btn{
  padding:.7rem 1.75rem;background:var(--text-primary);
  color:var(--bg-base);border:none;border-radius:var(--radius-sm);
  font-size:.875rem;font-weight:700;cursor:pointer;
  transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease-spring);
  margin-top:.5rem;font-family:inherit;
}
.save-btn:hover{opacity:.85;transform:scale(1.02)}
.save-msg{font-size:.8rem;color:var(--success);margin-top:.65rem;height:1.2rem}

.firebase-config-box{
  margin-top:2rem;background:var(--bg-elevated);
  border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;
}
.firebase-config-title{font-weight:700;font-size:.875rem;margin-bottom:.5rem;display:flex;align-items:center;gap:.625rem;color:var(--text-primary)}
.config-status{
  font-size:.68rem;font-weight:700;padding:.2rem .6rem;border-radius:2rem;
  background:rgba(255,69,58,.15);color:var(--destructive);border:1px solid rgba(255,69,58,.2);
}
.config-status.connected{background:rgba(48,209,88,.15);color:var(--success);border-color:rgba(48,209,88,.2)}
.firebase-hint{font-size:.8rem;color:var(--text-tertiary);margin-bottom:.75rem;line-height:1.6}
.firebase-hint code{background:var(--bg-card);border:1px solid var(--border);padding:.1rem .35rem;border-radius:4px;font-size:.75rem;color:var(--text-secondary)}
.config-snippet{
  background:#0d1117;border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-sm);padding:.875rem 1rem;
  font-size:.75rem;overflow-x:auto;line-height:1.9;
  color:#30d158;font-family:'SF Mono','Fira Code',monospace;
}

/* ── RESPONSIVE ──────────────────────────────── */
@media(max-width:900px){
  .chart-grid{grid-template-columns:1fr}
  .chart-card.full-width{grid-column:1}
}
@media(max-width:700px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0);box-shadow:var(--shadow-lg)}
  .main-content{margin-left:0}
  .burger{display:flex!important}
  .kpi-grid{grid-template-columns:1fr 1fr}
  .mini-charts-row{grid-template-columns:1fr}
  .topbar{padding:0 1rem}
  .section{padding:1rem}
  .topbar-right .last-update{display:none}
}
@media(max-width:480px){
  .kpi-grid{grid-template-columns:1fr}
  .kpi-value{font-size:2.4rem}
}

/* ── NUMBER POP ──────────────────────────────── */
@keyframes numPop{0%{transform:scale(1)}35%{transform:scale(1.08)}100%{transform:scale(1)}}
.kpi-value.pop{animation:numPop .28s var(--ease-spring)}

/* ── SCROLLBAR ───────────────────────────────── */
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.08);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.16)}
[data-theme="light"] ::-webkit-scrollbar-thumb{background:rgba(0,0,0,.1)}