/* ==========================================================================
   BIOTEX LIFE — Design system, base, layout, utilities, animations
   Files: style.css (this) · css/components.css · css/screens.css · css/responsive.css
   ========================================================================== */

/* ------------------------------------------------------------------
   1. DESIGN TOKENS
   ------------------------------------------------------------------ */
:root {
  --bg-primary: #050708;
  --bg-secondary: #0A0D10;
  --bg-tertiary: #0F1418;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-strong: rgba(255, 255, 255, 0.065);
  --surface-elevated: rgba(17, 23, 27, 0.92);
  --surface-solid: #0E1316;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text-primary: #F2F5F7;
  --text-secondary: #AAB5BE;
  --text-muted: #6F7B86;
  --text-inverse: #061013;

  --accent-primary: #3EE2D4;
  --accent-primary-rgb: 62, 226, 212;
  --accent-green: #3DDC97;
  --accent-green-rgb: 61, 220, 151;
  --accent-blue: #5B9CFF;
  --accent-blue-rgb: 91, 156, 255;
  --accent-purple: #A78BFA;
  --accent-purple-rgb: 167, 139, 250;
  --accent-orange: #FFA552;
  --accent-orange-rgb: 255, 165, 82;
  --accent-red: #FF6B6B;
  --accent-red-rgb: 255, 107, 107;

  --radius-small: 10px;
  --radius-medium: 16px;
  --radius-large: 24px;
  --radius-pill: 999px;

  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 8px 24px rgba(0, 0, 0, 0.28);
  --shadow-glow: 0 0 0 1px rgba(var(--accent-primary-rgb), 0.22), 0 14px 44px rgba(var(--accent-primary-rgb), 0.14);

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  --transition-fast: 150ms;
  --transition-normal: 250ms;
  --transition-slow: 420ms;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Manrope', 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --fs-xs: 11px;
  --fs-sm: 12.5px;
  --fs-base: 14.5px;
  --fs-md: 16px;
  --fs-lg: 19px;
  --fs-xl: clamp(24px, 6vw, 30px);
  --fs-hero: clamp(40px, 11vw, 56px);

  --nav-height: 64px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --page-pad: 16px;
  --content-max: 1180px;
  --sidebar-w: 248px;

  --map-filter: none;
  color-scheme: dark;
}

/* Light theme — optional; dark remains the primary design */
:root[data-theme="light"] {
  --bg-primary: #F3F6F8;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #EAF0F3;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.95);
  --surface-elevated: rgba(255, 255, 255, 0.96);
  --surface-solid: #FFFFFF;
  --border: rgba(6, 20, 24, 0.08);
  --border-strong: rgba(6, 20, 24, 0.16);
  --text-primary: #0B1418;
  --text-secondary: #4C5A63;
  --text-muted: #7B8790;
  --text-inverse: #FFFFFF;
  --accent-primary: #0FB7A8;
  --accent-primary-rgb: 15, 183, 168;
  --accent-green: #15A866;
  --accent-green-rgb: 21, 168, 102;
  --accent-blue: #2F6FE0;
  --accent-blue-rgb: 47, 111, 224;
  --accent-purple: #7C5CE0;
  --accent-purple-rgb: 124, 92, 224;
  --accent-orange: #E07A1F;
  --accent-orange-rgb: 224, 122, 31;
  --accent-red: #DE4A4A;
  --accent-red-rgb: 222, 74, 74;
  --shadow-soft: 0 10px 30px rgba(12, 30, 36, 0.10);
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 6px 18px rgba(12, 30, 36, 0.08);
  --shadow-glow: 0 0 0 1px rgba(var(--accent-primary-rgb), 0.22), 0 12px 36px rgba(var(--accent-primary-rgb), 0.14);
  color-scheme: light;
}

/* ------------------------------------------------------------------
   2. RESET & BASE
   ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { height: 100%; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  height: 100%;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 700; line-height: 1.15; letter-spacing: -0.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
svg:not(.svg-sprite) { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
svg text { stroke: none; }
input, select { font: inherit; color: inherit; }
b, strong { font-weight: 600; }
small { font-size: 0.72em; font-weight: 500; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--accent-primary); outline-offset: 2px; border-radius: 6px; }
::selection { background: rgba(var(--accent-primary-rgb), 0.3); }

/* Scrollbars (desktop) */
.screen::-webkit-scrollbar, .sheet__body::-webkit-scrollbar, .modal__body::-webkit-scrollbar { width: 8px; }
.screen::-webkit-scrollbar-thumb, .sheet__body::-webkit-scrollbar-thumb, .modal__body::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.10); border-radius: 8px; border: 2px solid transparent; background-clip: content-box; }

/* ------------------------------------------------------------------
   3. APP SHELL & LAYOUT
   ------------------------------------------------------------------ */
.app { position: fixed; inset: 0; display: flex; background: var(--bg-primary); }
.app::before {
  /* ambient brand glow */
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(900px 500px at 10% -10%, rgba(var(--accent-primary-rgb), 0.08), transparent 60%),
    radial-gradient(700px 420px at 100% 110%, rgba(var(--accent-blue-rgb), 0.06), transparent 60%);
}
.sidebar { display: none; }
.main { position: relative; flex: 1; min-width: 0; z-index: 1; }
.screens { position: absolute; inset: 0; }
.screen {
  position: absolute; inset: 0;
  overflow-y: auto; overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  display: none;
  padding-bottom: calc(var(--nav-height) + var(--safe-bottom) + 28px);
}
.screen.is-active { display: block; }
.screen--immersive { padding-bottom: 0; }
.screen.is-entering { animation: screenIn var(--transition-normal) var(--ease-out) both; }
.screen.is-leaving { display: block; animation: screenOut 170ms var(--ease) forwards; pointer-events: none; z-index: 2; }
.screen.is-entering.is-back { animation-name: screenInBack; }
.screen.is-leaving.is-back { animation-name: screenOutBack; }

.page { padding: var(--spacing-md) var(--page-pad) 0; display: flex; flex-direction: column; gap: var(--spacing-md); max-width: var(--content-max); margin: 0 auto; width: 100%; }

/* Screen header */
.screen-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: var(--spacing-sm);
  padding: calc(10px + var(--safe-top)) var(--page-pad) 10px;
  background: linear-gradient(to bottom, rgba(5, 7, 8, 0.92), rgba(5, 7, 8, 0.72));
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
:root[data-theme="light"] .screen-header { background: linear-gradient(to bottom, rgba(243, 246, 248, 0.96), rgba(243, 246, 248, 0.82)); }
.screen-header--main { padding-top: calc(18px + var(--safe-top)); }
.screen-header--main .screen-title { font-size: var(--fs-xl); letter-spacing: -0.02em; text-transform: none; }
.screen-title { flex: 1; font-size: 14px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.screen-header__actions { display: flex; align-items: center; gap: 6px; }

/* App header (home) */
.app-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-sm);
  padding: calc(12px + var(--safe-top)) var(--page-pad) 12px;
  background: linear-gradient(to bottom, rgba(5, 7, 8, 0.92), rgba(5, 7, 8, 0.6));
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
:root[data-theme="light"] .app-header { background: linear-gradient(to bottom, rgba(243, 246, 248, 0.96), rgba(243, 246, 248, 0.8)); }
.app-header__left { display: flex; align-items: center; min-width: 0; flex: 1 1 auto; overflow: hidden; }
.app-header__right { display: flex; align-items: center; gap: 8px; flex: none; }
.chip__mini { display: none; }
@media (max-width: 479px) { .app-header .chip__full { display: none; } .app-header .chip__mini { display: inline; } .app-header .brand-logo--sm { height: 24px; } }

/* ------------------------------------------------------------------
   4. BRAND LOGO (real asset auto-swap)
   ------------------------------------------------------------------ */
.brand-logo { display: inline-flex; align-items: center; color: var(--text-primary); line-height: 0; }
.brand-logo img { display: none; height: 100%; width: auto; object-fit: contain; }
.brand-logo__svg { height: 100%; width: auto; stroke: none; }
.brand-logo--xs { height: 22px; }
.brand-logo--sm { height: 26px; }
.brand-logo--md { height: 34px; }
.brand-logo--lg { height: 44px; }
.brand-logo--xl { height: clamp(54px, 14vw, 72px); }
html.has-real-logo .brand-logo img { display: block; }
html.has-real-logo .brand-logo__svg { display: none; }
html.has-real-logo.logo-needs-light-bg .brand-logo { background: rgba(255, 255, 255, 0.92); border-radius: 10px; padding: 4px 10px; }

/* ------------------------------------------------------------------
   5. TYPOGRAPHY UTILITIES
   ------------------------------------------------------------------ */
.eyebrow { font-size: var(--fs-xs); letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-muted); font-weight: 600; }
.small { font-size: var(--fs-sm); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.c-aqua { color: var(--accent-primary); }
.c-green { color: var(--accent-green); }
.c-blue { color: var(--accent-blue); }
.c-purple { color: var(--accent-purple); }
.c-orange { color: var(--accent-orange); }
.c-red { color: var(--accent-red); }
.c-bg-aqua { background: var(--accent-primary); }
.c-bg-green { background: var(--accent-green); }
.c-bg-blue { background: var(--accent-blue); }
.c-bg-purple { background: var(--accent-purple); }
.c-bg-orange { background: var(--accent-orange); }
.c-bg-red { background: var(--accent-red); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.ico { width: 15px; height: 15px; display: inline-block; vertical-align: -3px; flex: none; }
.tnum, .metric__value, .live__timer, .ecg-timer, .stat-box b, .live__stat b, .tile__value, .kv b, .hero__stat-value, .fullmap__stats b, .summary__big b { font-variant-numeric: tabular-nums; }
[hidden] { display: none !important; }

.section-title { font-size: var(--fs-md); font-weight: 700; margin-top: var(--spacing-sm); }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-sm); margin-top: var(--spacing-sm); }
.section-head h2 { font-size: var(--fs-md); }
.disclaimer-line { font-size: var(--fs-xs); text-align: center; padding: var(--spacing-sm) 0 var(--spacing-md); }
.note { display: flex; gap: 10px; align-items: flex-start; font-size: var(--fs-sm); color: var(--text-secondary); padding: 12px 14px; border: 1px dashed var(--border-strong); border-radius: var(--radius-medium); }
.note svg { width: 16px; height: 16px; flex: none; color: var(--accent-primary); margin-top: 1px; }
.noscript { position: fixed; inset: 0; display: grid; place-items: center; background: var(--bg-primary); padding: 24px; text-align: center; z-index: 999; }

/* ------------------------------------------------------------------
   6. ANIMATIONS
   ------------------------------------------------------------------ */
@keyframes screenIn { from { opacity: 0; transform: translateX(18px); } to { opacity: 1; transform: none; } }
@keyframes screenOut { from { opacity: 1; transform: none; } to { opacity: 0; transform: translateX(-14px); } }
@keyframes screenInBack { from { opacity: 0; transform: translateX(-18px); } to { opacity: 1; transform: none; } }
@keyframes screenOutBack { from { opacity: 1; transform: none; } to { opacity: 0; transform: translateX(14px); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.92); } to { opacity: 1; transform: none; } }
@keyframes pulseDot { 0%, 100% { box-shadow: 0 0 0 0 rgba(var(--accent-green-rgb), 0.55); } 70% { box-shadow: 0 0 0 7px rgba(var(--accent-green-rgb), 0); } }
@keyframes pulseRec { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@keyframes ripple { 0% { transform: scale(0.6); opacity: 0.7; } 100% { transform: scale(1.9); opacity: 0; } }
@keyframes heartBeat { 0% { transform: scale(1); } 14% { transform: scale(1.22); } 28% { transform: scale(1); } 42% { transform: scale(1.12); } 70% { transform: scale(1); } }
@keyframes sensorPulse { 0%, 100% { opacity: 0.45; transform: scale(0.9); } 50% { opacity: 1; transform: scale(1.15); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes drawLine { to { stroke-dashoffset: 0; } }
@keyframes toastIn { from { opacity: 0; transform: translateY(14px) scale(0.96); } to { opacity: 1; transform: none; } }
@keyframes sheetIn { from { transform: translateY(100%); } to { transform: none; } }
@keyframes sheetOut { from { transform: none; } to { transform: translateY(100%); } }
@keyframes modalIn { from { opacity: 0; transform: translateY(10px) scale(0.97); } to { opacity: 1; transform: none; } }
@keyframes vibrate { 0%, 100% { transform: translateX(0) rotate(0); } 20% { transform: translateX(-3px) rotate(-1.5deg); } 40% { transform: translateX(3px) rotate(1.5deg); } 60% { transform: translateX(-2px); } 80% { transform: translateX(2px); } }
@keyframes glowPulse { 0%, 100% { filter: drop-shadow(0 0 2px rgba(var(--accent-primary-rgb), 0.3)); } 50% { filter: drop-shadow(0 0 12px rgba(var(--accent-primary-rgb), 0.9)); } }
@keyframes chargeFill { 0% { opacity: 0.6; } 50% { opacity: 1; } 100% { opacity: 0.6; } }
@keyframes gpsPulse { 0% { transform: scale(0.5); opacity: 0.9; } 100% { transform: scale(2.6); opacity: 0; } }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes heroGlow { 0%, 100% { opacity: 0.55; transform: translate(0, 0); } 50% { opacity: 0.85; transform: translate(-4%, 6%); } }
@keyframes dash { to { stroke-dashoffset: -24; } }

.anim-fade-up { animation: fadeUp var(--transition-slow) var(--ease-out) both; }
.stagger > * { animation: fadeUp 420ms var(--ease-out) both; }
.stagger > *:nth-child(1) { animation-delay: 30ms; }
.stagger > *:nth-child(2) { animation-delay: 70ms; }
.stagger > *:nth-child(3) { animation-delay: 110ms; }
.stagger > *:nth-child(4) { animation-delay: 150ms; }
.stagger > *:nth-child(5) { animation-delay: 190ms; }
.stagger > *:nth-child(6) { animation-delay: 230ms; }
.stagger > *:nth-child(7) { animation-delay: 270ms; }
.stagger > *:nth-child(8) { animation-delay: 310ms; }
.stagger > *:nth-child(n+9) { animation-delay: 350ms; }

/* ------------------------------------------------------------------
   7. REDUCED MOTION
   ------------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .heart-beat svg, .status-dot--live, .connect__rings span, .sensor-pulse, .jacket__sensor circle:first-child { animation: none !important; }
}
html.reduce-motion *, html.reduce-motion *::before, html.reduce-motion *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }