@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Inter:wght@300;400;500&display=swap');

:root {
  --bg:       #060a10;
  --bg2:      #0b1220;
  --bg3:      #0f1928;
  --border:   rgba(255,255,255,0.06);
  --border2:  rgba(255,255,255,0.12);
  --text:     #dde6f0;
  --text2:    #6b82a0;
  --text3:    #374d66;
  --hr:       #ff3d5a;
  --spo2:     #00c8ef;
  --stress:   #ffaa00;
  --hrv:      #a855f7;
  --steps:    #00e5a0;
  --cal:      #ff4da6;
  --sleep:    #818cf8;
  --temp:     #fb923c;
  --display:  'Rajdhani', sans-serif;
  --body:     'Inter', sans-serif;
  --r:        14px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  min-height: 100vh;
  overflow-x: hidden;
}

/* BACKGROUND */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,200,239,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,239,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
}
.bg-glow {
  position: fixed; top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, rgba(0,200,239,0.04) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}

/* HEADER */
.header {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px;
  background: rgba(6,10,16,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.header-left { display: flex; align-items: center; gap: 12px; }
.pulse-wrap { position: relative; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; }
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--hr); position: relative; z-index: 1; }
.pulse-ring {
  position: absolute; width: 20px; height: 20px; border-radius: 50%;
  border: 1.5px solid var(--hr); opacity: 0;
  animation: pulse-anim 2s ease-out infinite;
}
@keyframes pulse-anim {
  0%   { transform: scale(0.4); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}
.header-title { font-family: var(--display); font-size: 15px; font-weight: 700; letter-spacing: 0.12em; color: var(--text); }
.header-sub   { font-size: 10px; color: var(--text3); letter-spacing: 0.06em; margin-top: 1px; }

.activity-badge {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 14px; border-radius: 20px;
  border: 1px solid var(--border2);
  font-size: 11px; font-family: var(--display); font-weight: 600;
  letter-spacing: 0.08em; color: var(--steps);
  transition: color 0.4s, border-color 0.4s;
}

.header-right { text-align: right; }
.header-clock { font-family: var(--display); font-size: 18px; font-weight: 700; color: var(--spo2); letter-spacing: 0.08em; }
.header-update { font-size: 10px; color: var(--text3); margin-top: 2px; }

/* MAIN */
.main {
  position: relative; z-index: 1;
  max-width: 1440px; margin: 0 auto;
  padding: 20px 24px;
  display: flex; flex-direction: column; gap: 14px;
}

/* ROWS */
.row { display: grid; gap: 14px; }
.row-4     { grid-template-columns: repeat(4, minmax(0,1fr)); }
.row-charts{ grid-template-columns: 2fr 1fr; }
.row-detail{ grid-template-columns: 1fr 1.4fr; }
.row-stats { grid-template-columns: 1fr 1fr; }
.row-full  { grid-template-columns: 1fr; }

/* CARD */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 16px 18px;
  position: relative; overflow: hidden;
  transition: border-color 0.3s, transform 0.2s;
  animation: card-in 0.4s ease both;
}
@keyframes card-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.card:hover { border-color: var(--border2); transform: translateY(-1px); }

/* Colored top border per card type */
.card-hr::before,
.card-spo2::before,
.card-stress::before,
.card-hrv::before,
.card-steps::before,
.card-cal::before,
.card-sleep::before,
.card-temp::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
}
.card-hr::before     { background: var(--hr); }
.card-spo2::before   { background: var(--spo2); }
.card-stress::before { background: var(--stress); }
.card-hrv::before    { background: var(--hrv); }
.card-steps::before  { background: var(--steps); }
.card-cal::before    { background: var(--cal); }
.card-sleep::before  { background: var(--sleep); }
.card-temp::before   { background: var(--temp); }

/* CARD INTERNALS */
.card-top { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.card-icon-wrap {
  width: 30px; height: 30px; border-radius: 8px;
  background: rgba(255,255,255,0.04);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.card-icon { width: 16px; height: 16px; }

.card-hr    .card-icon { color: var(--hr); }
.card-spo2  .card-icon { color: var(--spo2); }
.card-stress.card-icon { color: var(--stress); }
.card-hrv   .card-icon { color: var(--hrv); }
.card-steps .card-icon { color: var(--steps); }
.card-cal   .card-icon { color: var(--cal); }
.card-sleep .card-icon { color: var(--sleep); }
.card-temp  .card-icon { color: var(--temp); }

.card-label {
  font-size: 10px; font-weight: 500; letter-spacing: 0.1em;
  color: var(--text3); text-transform: uppercase;
}

.card-value-wrap { display: flex; align-items: baseline; gap: 4px; margin-bottom: 5px; }
.card-num {
  font-family: var(--display); font-size: 36px; font-weight: 700;
  line-height: 1; color: var(--text);
  transition: color 0.4s;
}
.card-unit { font-size: 12px; color: var(--text3); }

.card-status { font-size: 11px; color: var(--text2); min-height: 15px; margin-bottom: 10px; }

.card-bar-track { height: 3px; background: rgba(255,255,255,0.05); border-radius: 2px; overflow: hidden; }
.card-bar-fill  { height: 100%; width: 0; border-radius: 2px; transition: width 0.8s ease; }
.fill-hr     { background: var(--hr); }
.fill-spo2   { background: var(--spo2); }
.fill-stress { background: var(--stress); }
.fill-hrv    { background: var(--hrv); }
.fill-temp   { background: var(--temp); }

/* RING */
.ring-wrap { position: relative; width: 56px; height: 56px; margin-top: 8px; }
.ring-svg  { width: 56px; height: 56px; transform: rotate(-90deg); }
.ring-bg   { fill: none; stroke: rgba(255,255,255,0.05); stroke-width: 4; }
.ring-fg   { fill: none; stroke-width: 4; stroke-linecap: round; transition: stroke-dashoffset 0.8s ease; }
.ring-steps { stroke: var(--steps); }
.ring-cal   { stroke: var(--cal); }
.ring-label {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--display); font-size: 11px; font-weight: 600; color: var(--text2);
}

/* SLEEP MINI */
.sleep-mini { display: flex; gap: 2px; height: 18px; margin-top: 10px; border-radius: 4px; overflow: hidden; }
.sm-deep  { background: var(--sleep); opacity: 0.9; flex: 1; }
.sm-rem   { background: var(--spo2); opacity: 0.7; flex: 1; }
.sm-light { background: var(--steps); opacity: 0.5; flex: 1; }
.sm-awake { background: var(--stress); opacity: 0.6; flex: 1; }

/* CHART */
.chart-hdr { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.chart-ttl {
  display: flex; align-items: center; gap: 6px;
  font-family: var(--display); font-size: 13px; font-weight: 600;
  color: var(--text2); letter-spacing: 0.04em;
}
.chart-ttl svg { color: var(--spo2); }
.chart-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.chart-wrap { position: relative; width: 100%; overflow: hidden; }

.ctab {
  display: flex; align-items: center; gap: 4px;
  background: transparent; border: 1px solid var(--border);
  color: var(--text3); font-family: var(--body); font-size: 11px;
  padding: 4px 10px; border-radius: 20px; cursor: pointer;
  transition: all 0.2s;
}
.ctab:hover, .ctab.active {
  background: rgba(0,200,239,0.1);
  border-color: var(--spo2);
  color: var(--spo2);
}

/* SECTION TITLE */
.section-title {
  display: flex; align-items: center; gap: 7px;
  font-family: var(--display); font-size: 13px; font-weight: 600;
  color: var(--text2); letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.section-title svg { color: var(--spo2); flex-shrink: 0; }

/* EXTRA GRID */
.extra-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.extra-item {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 12px; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 10px;
}
.extra-item svg { color: var(--text3); flex-shrink: 0; }
.ei-label { font-size: 10px; color: var(--text3); flex: 1; }
.ei-val   { font-family: var(--display); font-size: 13px; font-weight: 600; color: var(--text); white-space: nowrap; }

/* SVM */
.card-svm { display: flex; flex-direction: column; }
.svm-badge {
  margin-left: auto;
  font-size: 10px; padding: 2px 10px; border-radius: 20px;
  border: 1px solid rgba(0,229,160,0.3);
  color: var(--steps); background: rgba(0,229,160,0.06);
  font-family: var(--display); font-weight: 600; letter-spacing: 0.06em;
}
#svm-list { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.svm-row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 10px;
  background: var(--bg3); border: 1px solid var(--border);
  animation: card-in 0.3s ease;
}
.svm-dot  { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.svm-name { font-size: 12px; color: var(--text); flex: 1; }
.svm-bar  { width: 70px; height: 3px; background: rgba(255,255,255,0.05); border-radius: 2px; overflow: hidden; flex-shrink: 0; }
.svm-bar-inner { height: 100%; border-radius: 2px; transition: width 0.8s ease; }
.svm-pct  { font-family: var(--display); font-size: 12px; font-weight: 600; min-width: 34px; text-align: right; }
.svm-lbl  { font-size: 10px; min-width: 46px; text-align: right; }
.svm-note { font-size: 10px; color: var(--text3); font-style: italic; margin-top: 10px; }

/* STATS GRID */
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat-item {
  display: flex; flex-direction: column; gap: 3px;
  padding: 10px 12px; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 10px;
}
.stat-lbl { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.06em; }
.stat-val { font-family: var(--display); font-size: 15px; font-weight: 600; color: var(--text); }

/* NO DATA */
.no-data { text-align: center; color: var(--text3); font-size: 12px; padding: 16px 0; }

/* RESPONSIVE */
@media (max-width: 1100px) {
  .row-4     { grid-template-columns: repeat(2, 1fr); }
  .row-charts{ grid-template-columns: 1fr; }
  .row-detail{ grid-template-columns: 1fr; }
  .row-stats { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .main    { padding: 12px; }
  .header  { padding: 10px 14px; }
  .row-4   { grid-template-columns: repeat(2, 1fr); }
  .card-num { font-size: 28px; }
  .header-clock { font-size: 14px; }
}