/* ============================================================
   LIFELINK — DESIGN TOKENS
   ============================================================ */
:root{
  --primary:#2563EB;
  --primary-dark:#1D4ED8;
  --primary-light:#60A5FA;
  --secondary:#06B6D4;
  --accent:#10B981;
  --danger:#EF4444;
  --warning:#F59E0B;

  --ink:#0F1B33;
  --ink-soft:#5B6B8C;
  --ink-faint:#94A3B8;

  --bg:#FFFFFF;
  --bg-soft:#F2F7FF;
  --bg-soft-2:#E9F2FF;
  --line:#E1E9F7;

  --glass-bg:rgba(255,255,255,0.62);
  --glass-bg-strong:rgba(255,255,255,0.82);
  --glass-border:rgba(255,255,255,0.9);

  --radius-sm:12px;
  --radius-md:18px;
  --radius-lg:28px;
  --radius-pill:999px;

  --shadow-sm:0 4px 16px rgba(15,27,51,0.06);
  --shadow-md:0 12px 32px rgba(15,27,51,0.10);
  --shadow-lg:0 24px 60px rgba(37,99,235,0.16);
  --shadow-glow:0 0 0 1px rgba(37,99,235,0.08), 0 20px 50px rgba(6,182,212,0.18);

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --container:1180px;
  --ease:cubic-bezier(.22,1,.36,1);
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }
h1,h2,h3,h4{ font-family:var(--font-display); color:var(--ink); line-height:1.15; font-weight:600; }
:focus-visible{ outline:2px solid var(--primary); outline-offset:3px; border-radius:4px; }
.section-inner, .nav-inner, .hero-inner, .footer-inner{ width:100%; max-width:var(--container); margin:0 auto; padding-left:24px; padding-right:24px; }

/* ============================================================
   LOADER
   ============================================================ */
.loader{
  position:fixed; inset:0; z-index:9999;
  background:linear-gradient(160deg,#fff 0%, var(--bg-soft) 100%);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:18px;
  transition:opacity .6s var(--ease), visibility .6s var(--ease);
}
.loader.hide{ opacity:0; visibility:hidden; pointer-events:none; }
.loader-pulse{ width:160px; }
.loader-ekg{ width:100%; height:auto; overflow:visible; }
.loader-ekg polyline{
  fill:none; stroke:var(--primary); stroke-width:3; stroke-linecap:round; stroke-linejoin:round;
  stroke-dasharray:420; stroke-dashoffset:420;
  animation:drawEkg 1.4s var(--ease) infinite;
}
@keyframes drawEkg{ to{ stroke-dashoffset:0; } }
.loader-text{ font-family:var(--font-display); font-weight:700; letter-spacing:0.04em; color:var(--ink); font-size:1.1rem; }

/* ============================================================
   NAVBAR
   ============================================================ */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:500;
  background:rgba(255,255,255,0.7);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.nav.scrolled{ border-color:var(--line); box-shadow:0 4px 24px rgba(15,27,51,0.06); }
.nav-inner{ display:flex; align-items:center; justify-content:space-between; height:74px; gap:24px; }
.nav-logo{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:700; font-size:1.15rem; flex-shrink:0; }
.nav-logo-mark{ width:34px; height:34px; }
.logo-ring{ fill:none; stroke:var(--line); stroke-width:2; }
.logo-pulse{ fill:none; stroke:var(--primary); stroke-width:2.4; stroke-linecap:round; stroke-linejoin:round; }
.nav-links{ display:flex; align-items:center; gap:28px; flex:1; justify-content:center; }
.nav-links a{ font-size:0.92rem; font-weight:500; color:var(--ink-soft); position:relative; padding:6px 2px; transition:color .25s; }
.nav-links a::after{ content:''; position:absolute; left:0; bottom:0; width:0; height:2px; background:var(--primary); transition:width .25s var(--ease); border-radius:2px; }
.nav-links a:hover{ color:var(--ink); }
.nav-links a.active{ color:var(--primary); }
.nav-links a.active::after{ width:100%; }
.nav-cta{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff; padding:11px 22px; border-radius:var(--radius-pill); font-size:0.88rem; font-weight:600;
  box-shadow:0 8px 20px rgba(37,99,235,0.28); transition:transform .25s var(--ease), box-shadow .25s var(--ease); flex-shrink:0;
}
.nav-cta:hover{ transform:translateY(-2px); box-shadow:0 12px 28px rgba(37,99,235,0.36); }
.nav-toggle{ display:none; flex-direction:column; gap:5px; width:26px; flex-shrink:0; }
.nav-toggle span{ height:2px; background:var(--ink); border-radius:2px; transition:.3s; }
.nav-toggle.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative; min-height:100vh; display:flex; align-items:center; justify-content:center;
  padding:130px 0 60px; overflow:hidden;
  background:linear-gradient(160deg,#ffffff 0%, var(--bg-soft) 55%, var(--bg-soft-2) 100%);
}
.hero-bg{ position:absolute; inset:0; z-index:0; }
.hero-blob{ position:absolute; border-radius:50%; filter:blur(60px); opacity:0.55; }
.blob-1{ width:480px; height:480px; background:radial-gradient(circle, var(--primary-light), transparent 70%); top:-160px; right:-140px; animation:drift1 14s ease-in-out infinite; }
.blob-2{ width:420px; height:420px; background:radial-gradient(circle, var(--secondary), transparent 70%); bottom:-160px; left:-120px; opacity:0.35; animation:drift2 16s ease-in-out infinite; }
@keyframes drift1{ 0%,100%{ transform:translate(0,0); } 50%{ transform:translate(-30px,30px); } }
@keyframes drift2{ 0%,100%{ transform:translate(0,0); } 50%{ transform:translate(30px,-20px); } }
.hero-grid{
  position:absolute; inset:0;
  background-image:linear-gradient(rgba(37,99,235,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(37,99,235,0.05) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent 80%);
}
.float-icon{ position:absolute; color:var(--primary); opacity:0.16; font-size:2rem; animation:floatY 8s ease-in-out infinite; }
.icon-1{ top:18%; left:9%; animation-delay:0s; color:var(--primary); }
.icon-2{ top:62%; left:6%; animation-delay:1.2s; color:var(--accent); }
.icon-3{ top:24%; right:10%; animation-delay:2.1s; color:var(--secondary); }
.icon-4{ top:70%; right:14%; animation-delay:0.6s; color:var(--primary); }
.icon-5{ top:46%; left:3%; animation-delay:3s; font-size:1.5rem; color:var(--secondary); }
.icon-6{ top:14%; right:24%; animation-delay:1.8s; font-size:1.5rem; color:var(--accent); }
@keyframes floatY{ 0%,100%{ transform:translateY(0) rotate(0deg); } 50%{ transform:translateY(-22px) rotate(6deg); } }

.hero-inner{ position:relative; z-index:1; text-align:center; }
.eyebrow{
  display:inline-block; font-family:var(--font-mono); font-size:0.78rem; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--primary); background:rgba(37,99,235,0.08); border:1px solid rgba(37,99,235,0.18);
  padding:7px 16px; border-radius:var(--radius-pill); margin-bottom:24px;
}
.hero-title{ font-size:clamp(3.2rem, 9vw, 6.4rem); font-weight:700; letter-spacing:-0.02em; }
.ink-accent{ background:linear-gradient(135deg,var(--primary),var(--secondary)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero-subtitle{ font-size:clamp(1.1rem,2.4vw,1.5rem); font-weight:500; color:var(--ink); margin-top:14px; }
.hero-desc{ max-width:640px; margin:18px auto 0; color:var(--ink-soft); font-size:1.04rem; }
.hero-actions{ display:flex; gap:16px; justify-content:center; margin-top:36px; flex-wrap:wrap; }

.btn{ display:inline-flex; align-items:center; gap:10px; padding:15px 28px; border-radius:var(--radius-pill); font-weight:600; font-size:0.96rem; transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s; }
.btn-primary{ background:linear-gradient(135deg,var(--primary),var(--secondary)); color:#fff; box-shadow:0 10px 28px rgba(37,99,235,0.32); }
.btn-primary:hover{ transform:translateY(-3px); box-shadow:0 16px 36px rgba(37,99,235,0.4); }
.btn-ghost{ background:rgba(255,255,255,0.7); color:var(--ink); border:1px solid var(--line); backdrop-filter:blur(8px); }
.btn-ghost:hover{ transform:translateY(-3px); border-color:var(--primary); box-shadow:var(--shadow-sm); }
.btn i{ font-size:0.85em; }

.hero-ekg{ max-width:760px; margin:48px auto 0; opacity:0.85; }
.hero-ekg-svg{ width:100%; height:50px; overflow:visible; }
.ekg-line{ fill:none; stroke:var(--primary); stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; stroke-dasharray:1600; stroke-dashoffset:1600; animation:ekgDraw 3.2s var(--ease) 0.4s forwards, ekgPulseGlow 2.4s ease-in-out 3.6s infinite; }
@keyframes ekgDraw{ to{ stroke-dashoffset:0; } }
@keyframes ekgPulseGlow{ 0%,100%{ opacity:0.55; } 50%{ opacity:1; } }

.hero-stats{ display:flex; justify-content:center; gap:18px; margin-top:50px; flex-wrap:wrap; }
.stat-card{
  background:var(--glass-bg); border:1px solid var(--glass-border); backdrop-filter:blur(12px);
  border-radius:var(--radius-md); padding:22px 30px; min-width:160px; box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.stat-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.stat-number{ display:block; font-family:var(--font-mono); font-size:2.1rem; font-weight:700; color:var(--primary); }
.stat-label{ display:block; font-size:0.85rem; color:var(--ink-soft); margin-top:4px; }

.scroll-cue{ position:absolute; bottom:28px; left:50%; transform:translateX(-50%); color:var(--ink-faint); font-size:1.2rem; animation:bounceCue 2s ease-in-out infinite; }
@keyframes bounceCue{ 0%,100%{ transform:translate(-50%,0); } 50%{ transform:translate(-50%,8px); } }

/* ============================================================
   SHARED SECTION STYLES
   ============================================================ */
.section{ padding:120px 0; position:relative; }
.section-eyebrow{ font-family:var(--font-mono); font-size:0.78rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--secondary); font-weight:600; margin-bottom:14px; }
.section-title{ font-size:clamp(1.9rem,4vw,2.7rem); max-width:760px; }
.section-lead{ color:var(--ink-soft); max-width:600px; margin-top:16px; font-size:1.05rem; }
.underline-accent{ position:relative; white-space:nowrap; }
.underline-accent::after{ content:''; position:absolute; left:0; right:0; bottom:2px; height:8px; background:rgba(16,185,129,0.22); z-index:-1; border-radius:4px; }

.reveal{ opacity:0; transform:translateY(28px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in-view{ opacity:1; transform:translateY(0); }

/* ============================================================
   SECTION 2 — PROBLEM
   ============================================================ */
.problem{ background:var(--bg); }
.problem-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; margin-top:56px; }
.problem-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-lg); padding:30px 24px;
  box-shadow:var(--shadow-sm); transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  display:flex; flex-direction:column; gap:10px;
}
.problem-card:hover{ transform:translateY(-8px); box-shadow:var(--shadow-md); border-color:rgba(37,99,235,0.25); }
.problem-icon{ width:54px; height:54px; border-radius:14px; background:linear-gradient(135deg,rgba(37,99,235,0.12),rgba(6,182,212,0.12)); display:flex; align-items:center; justify-content:center; color:var(--primary); font-size:1.3rem; margin-bottom:6px; }
.problem-card h3{ font-size:1.1rem; }
.problem-card p{ color:var(--ink-soft); font-size:0.92rem; flex:1; }
.problem-stat{ display:flex; flex-direction:column; font-family:var(--font-mono); font-weight:700; color:var(--danger); font-size:1.6rem; margin-top:8px; border-top:1px dashed var(--line); padding-top:12px; }
.problem-stat small{ font-family:var(--font-body); font-weight:500; color:var(--ink-faint); font-size:0.76rem; }

/* ============================================================
   SECTION 3 — SOLUTION
   ============================================================ */
.solution{ background:linear-gradient(180deg,var(--bg) 0%, var(--bg-soft) 100%); }
.solution-flow{ display:flex; align-items:flex-start; justify-content:space-between; margin-top:60px; gap:8px; flex-wrap:wrap; }
.solution-step{
  flex:1; min-width:170px; text-align:center; background:var(--glass-bg-strong); border:1px solid var(--glass-border);
  border-radius:var(--radius-md); padding:28px 18px; backdrop-filter:blur(10px); box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.solution-step:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.solution-num{ font-family:var(--font-mono); color:var(--ink-faint); font-size:0.8rem; font-weight:700; margin-bottom:10px; }
.solution-icon{ width:52px; height:52px; margin:0 auto 14px; border-radius:50%; background:linear-gradient(135deg,var(--primary),var(--secondary)); display:flex; align-items:center; justify-content:center; color:#fff; font-size:1.25rem; box-shadow:0 8px 20px rgba(37,99,235,0.3); }
.solution-step h3{ font-size:1.02rem; margin-bottom:6px; }
.solution-step p{ font-size:0.85rem; color:var(--ink-soft); }
.solution-connector{ flex:0 0 28px; height:2px; background:linear-gradient(90deg,var(--primary),var(--secondary)); margin-top:50px; opacity:0.4; border-radius:2px; }

/* ============================================================
   SECTION 4 — WRISTBAND
   ============================================================ */
.wristband{ background:var(--bg); }
.wristband-layout{ display:grid; grid-template-columns:380px 1fr; gap:50px; margin-top:56px; align-items:start; }
.device-illustration{ position:relative; display:flex; flex-direction:column; align-items:center; gap:18px; }
.device-svg{ width:100%; max-width:320px; }
.device-glow{ fill:url(#none); fill:rgba(37,99,235,0.06); }
.device-band{ fill:#DCEBFF; }
.device-case{ fill:var(--ink); }
.device-screen{ fill:#0B1830; }
.device-ekg{ fill:none; stroke:var(--accent); stroke-width:2.4; stroke-linecap:round; stroke-linejoin:round; stroke-dasharray:200; stroke-dashoffset:200; animation:ekgDraw 2.6s linear infinite; }
.device-led{ fill:var(--accent); animation:blinkLed 1.6s ease-in-out infinite; }
@keyframes blinkLed{ 0%,100%{ opacity:1; } 50%{ opacity:0.25; } }
.device-badge{ font-family:var(--font-mono); font-size:0.78rem; color:var(--primary); background:rgba(37,99,235,0.08); border:1px solid rgba(37,99,235,0.18); padding:7px 16px; border-radius:var(--radius-pill); }

.chip-row{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:30px; }
.chip{ display:inline-flex; align-items:center; gap:8px; background:var(--bg-soft); border:1px solid var(--line); padding:9px 16px; border-radius:var(--radius-pill); font-size:0.85rem; font-weight:500; color:var(--ink); }
.chip i{ color:var(--secondary); }

.feature-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.feature-grid.two-col{ grid-template-columns:repeat(2,1fr); }
.feature-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius-md); padding:24px; box-shadow:var(--shadow-sm); transition:transform .3s var(--ease), box-shadow .3s var(--ease); }
.feature-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.feature-card i{ color:var(--primary); font-size:1.4rem; margin-bottom:12px; display:block; }
.feature-card h4{ font-size:0.98rem; margin-bottom:6px; }
.feature-card p{ font-size:0.86rem; color:var(--ink-soft); }

/* ============================================================
   SECTION 5 — DISPENSER
   ============================================================ */
.dispenser{ background:linear-gradient(180deg,var(--bg-soft) 0%, var(--bg) 100%); }
.dispenser-layout{ display:grid; grid-template-columns:300px 1fr; gap:50px; margin-top:56px; align-items:start; }
.dispenser-illustration{ display:flex; flex-direction:column; align-items:center; gap:18px; }
.dispenser-body{ fill:#fff; stroke:var(--line); stroke-width:2; }
.dispenser-slot{ fill:var(--bg-soft); stroke:var(--primary); stroke-width:1.5; stroke-dasharray:4 4; }
.dispenser-tray{ fill:var(--ink); }
.dispenser-pill{ fill:var(--accent); animation:dropPill 2.4s ease-in-out infinite; }
@keyframes dropPill{ 0%,70%,100%{ transform:translateY(0); opacity:1; } 85%{ transform:translateY(70px); opacity:0; } }

.workflow{ margin-top:30px; background:var(--bg-soft); border-radius:var(--radius-md); padding:26px; }
.workflow-title{ font-size:1rem; margin-bottom:18px; }
.workflow-row{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.workflow-step{ display:flex; align-items:center; gap:10px; background:#fff; border:1px solid var(--line); padding:10px 16px; border-radius:var(--radius-pill); font-size:0.85rem; font-weight:500; box-shadow:var(--shadow-sm); }
.workflow-step i{ color:var(--secondary); }
.workflow-arrow{ color:var(--ink-faint); font-size:0.8rem; }

/* ============================================================
   SECTION 6 — DASHBOARD
   ============================================================ */
.dashboard-section{ background:linear-gradient(160deg,#0F1B33 0%, #14264A 60%, #0B1830 100%); color:#fff; }
.dashboard-section .section-eyebrow{ color:var(--secondary); }
.dashboard-section .section-title{ color:#fff; }
.dashboard-section .section-lead{ color:#A9B8D6; }

.dashboard{ margin-top:56px; background:rgba(255,255,255,0.05); border:1px solid rgba(255,255,255,0.12); border-radius:var(--radius-lg); padding:34px; backdrop-filter:blur(16px); box-shadow:0 30px 70px rgba(0,0,0,0.35); }
.dashboard-top{ display:flex; justify-content:space-between; align-items:center; margin-bottom:30px; flex-wrap:wrap; gap:14px; }
.device-status{ display:flex; align-items:center; gap:10px; font-family:var(--font-mono); font-size:0.85rem; color:#cfe0ff; }
.status-dot{ width:10px; height:10px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 0 rgba(16,185,129,0.6); animation:pulseDot 1.8s ease-in-out infinite; }
@keyframes pulseDot{ 0%{ box-shadow:0 0 0 0 rgba(16,185,129,0.5); } 70%{ box-shadow:0 0 0 8px rgba(16,185,129,0); } 100%{ box-shadow:0 0 0 0 rgba(16,185,129,0); } }
.emergency-status{ font-family:var(--font-mono); font-size:0.85rem; padding:9px 18px; border-radius:var(--radius-pill); display:flex; align-items:center; gap:8px; }
.emergency-status.safe{ background:rgba(16,185,129,0.15); color:#6EE7B7; border:1px solid rgba(16,185,129,0.3); }
.emergency-status.alert{ background:rgba(239,68,68,0.18); color:#FCA5A5; border:1px solid rgba(239,68,68,0.4); }

.vitals-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; margin-bottom:34px; }
.vital-card{ display:flex; flex-direction:column; align-items:center; gap:14px; }
.vital-ring{ position:relative; width:120px; height:120px; }
.vital-ring svg{ width:100%; height:100%; transform:rotate(-90deg); }
.ring-bg{ fill:none; stroke:rgba(255,255,255,0.1); stroke-width:8; }
.ring-fg{ fill:none; stroke-width:8; stroke-linecap:round; stroke-dasharray:326.7; stroke-dashoffset:326.7; transition:stroke-dashoffset 1s var(--ease); }
.ring-heart{ stroke:#F87171; }
.ring-spo2{ stroke:var(--secondary); }
.ring-temp{ stroke:var(--warning); }
.ring-compliance{ stroke:var(--accent); }
.vital-ring-inner{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px; }
.vital-ring-inner i{ font-size:1rem; color:#cfe0ff; opacity:0.7; margin-bottom:2px; }
.vital-value{ font-family:var(--font-mono); font-size:1.5rem; font-weight:700; color:#fff; }
.vital-unit{ font-size:0.7rem; color:#9FB3DA; }
.vital-card h4{ color:#cfe0ff; font-size:0.88rem; font-weight:500; font-family:var(--font-body); }

.dashboard-bottom{ display:grid; grid-template-columns:1.4fr 1fr; gap:22px; }
.trend-card, .activity-card{ background:rgba(255,255,255,0.04); border:1px solid rgba(255,255,255,0.1); border-radius:var(--radius-md); padding:22px; }
.trend-card h4, .activity-card h4{ color:#cfe0ff; font-size:0.92rem; margin-bottom:16px; font-family:var(--font-body); font-weight:600; display:flex; justify-content:space-between; align-items:center; }
.trend-live{ color:var(--accent); font-family:var(--font-mono); font-size:0.7rem; animation:blinkLed 1.6s ease-in-out infinite; }
.trend-svg{ width:100%; height:110px; }
.trend-line{ fill:none; stroke:var(--secondary); stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; filter:drop-shadow(0 0 6px rgba(6,182,212,0.5)); }
.activity-feed{ display:flex; flex-direction:column; gap:14px; max-height:140px; overflow-y:auto; }
.activity-feed li{ display:flex; gap:10px; font-size:0.85rem; color:#cfe0ff; align-items:flex-start; }
.activity-feed li i{ color:var(--accent); margin-top:3px; font-size:0.8rem; }
.activity-feed time{ font-family:var(--font-mono); font-size:0.72rem; color:#7488AE; display:block; margin-top:2px; }

/* ============================================================
   SECTION 7 — ARCHITECTURE
   ============================================================ */
.architecture{ background:var(--bg); overflow:hidden; }
.arch-diagram{ margin-top:60px; display:flex; flex-direction:column; align-items:center; }
.arch-node{
  display:flex; flex-direction:column; align-items:center; gap:8px; background:#fff; border:1px solid var(--line);
  border-radius:var(--radius-md); padding:18px 26px; box-shadow:var(--shadow-sm); min-width:170px; text-align:center;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.arch-node:hover{ transform:translateY(-4px) scale(1.03); box-shadow:var(--shadow-md); border-color:rgba(37,99,235,0.3); }
.arch-node i{ font-size:1.4rem; color:var(--primary); }
.arch-node span{ font-size:0.85rem; font-weight:600; }
.arch-link{ width:2px; height:36px; background:linear-gradient(180deg,var(--primary),var(--secondary)); position:relative; }
.arch-link::after{ content:''; position:absolute; left:-3px; top:0; width:8px; height:8px; border-radius:50%; background:var(--accent); animation:flowDot 1.6s linear infinite; box-shadow:0 0 8px var(--accent); }
@keyframes flowDot{ 0%{ top:0; opacity:0; } 15%{ opacity:1; } 85%{ opacity:1; } 100%{ top:100%; opacity:0; } }
.arch-split{ display:flex; gap:140px; height:36px; }
.arch-link.diag{ width:2px; height:36px; background:linear-gradient(180deg,var(--primary),var(--secondary)); }
.arch-branch{ display:flex; gap:40px; margin:0 0 0 0; }
.arch-branch .arch-node{ margin:0; }

/* ============================================================
   SECTION 8 — EMERGENCY
   ============================================================ */
.emergency{ background:linear-gradient(180deg,var(--bg) 0%, #FFF5F5 100%); }
.emergency-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:18px; margin-top:56px; }
.warning-card{ background:#fff; border:1px solid #FED7D7; border-radius:var(--radius-md); padding:24px 18px; text-align:center; box-shadow:var(--shadow-sm); transition:transform .3s var(--ease), box-shadow .3s var(--ease); }
.warning-card:hover{ transform:translateY(-6px); box-shadow:0 16px 36px rgba(239,68,68,0.14); }
.warning-card i{ font-size:1.5rem; color:var(--danger); margin-bottom:12px; display:block; }
.warning-card h4{ font-size:0.95rem; margin-bottom:8px; }
.warning-card p{ font-size:0.82rem; color:var(--ink-soft); }

.alert-timeline{ margin-top:54px; background:#fff; border:1px solid var(--line); border-radius:var(--radius-lg); padding:32px; box-shadow:var(--shadow-sm); }
.timeline{ position:relative; display:flex; flex-direction:column; gap:26px; margin-top:18px; padding-left:26px; border-left:2px dashed var(--line); }
.timeline-item{ position:relative; }
.timeline-dot{ position:absolute; left:-32px; top:2px; width:14px; height:14px; border-radius:50%; background:var(--danger); box-shadow:0 0 0 4px rgba(239,68,68,0.15); }
.timeline-time{ font-family:var(--font-mono); font-size:0.78rem; color:var(--primary); font-weight:700; }
.timeline-item p{ color:var(--ink-soft); margin-top:4px; font-size:0.92rem; }

/* ============================================================
   SECTION 9 — IMPACT
   ============================================================ */
.impact{ background:var(--bg); }
.impact-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:56px; }
.impact-card{ background:linear-gradient(160deg,#fff, var(--bg-soft)); border:1px solid var(--line); border-radius:var(--radius-lg); padding:28px; transition:transform .3s var(--ease), box-shadow .3s var(--ease); box-shadow:var(--shadow-sm); }
.impact-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.impact-num{ font-family:var(--font-mono); color:var(--secondary); font-weight:700; font-size:1.1rem; }
.impact-card h4{ margin:10px 0 8px; font-size:1.05rem; }
.impact-card p{ color:var(--ink-soft); font-size:0.9rem; }

.impact-stats{ display:flex; justify-content:space-between; margin-top:56px; flex-wrap:wrap; gap:24px; background:var(--ink); border-radius:var(--radius-lg); padding:40px; }
.impact-stat{ display:flex; flex-direction:column; align-items:center; gap:6px; flex:1; min-width:140px; text-align:center; }
.impact-stat strong{ font-family:var(--font-mono); font-size:2.2rem; color:var(--secondary); }
.impact-stat span{ font-size:0.85rem; color:#A9B8D6; }

/* ============================================================
   SECTION 10 — ROADMAP
   ============================================================ */
.roadmap{ background:linear-gradient(180deg,var(--bg) 0%, var(--bg-soft) 100%); }
.roadmap-timeline{ margin-top:56px; display:flex; flex-direction:column; gap:0; position:relative; padding-left:34px; border-left:2px solid var(--line); }
.roadmap-item{ position:relative; padding:0 0 42px 28px; }
.roadmap-item:last-child{ padding-bottom:0; }
.roadmap-marker{
  position:absolute; left:-49px; top:0; width:32px; height:32px; border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary)); color:#fff; font-family:var(--font-mono); font-weight:700;
  display:flex; align-items:center; justify-content:center; font-size:0.9rem; box-shadow:0 0 0 5px #fff, 0 4px 14px rgba(37,99,235,0.3);
}
.roadmap-content h4{ font-size:1.05rem; margin-bottom:6px; }
.roadmap-content p{ color:var(--ink-soft); font-size:0.92rem; max-width:520px; }

/* ============================================================
   SECTION 11 — CONTACT
   ============================================================ */
.contact{ background:var(--bg); }
.contact-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; margin-top:50px; }
.contact-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius-md); padding:26px; text-align:center; box-shadow:var(--shadow-sm); transition:transform .3s var(--ease), box-shadow .3s var(--ease); }
.contact-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.contact-card i{ font-size:1.4rem; color:var(--primary); margin-bottom:12px; display:block; }
.contact-card h4{ font-size:0.95rem; margin-bottom:6px; }
.contact-card p{ color:var(--ink-soft); font-size:0.9rem; }
.contact-card a{ color:var(--primary); font-weight:600; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{ background:var(--ink); color:#A9B8D6; padding:56px 0 30px; }
.footer-inner{ display:flex; flex-direction:column; align-items:center; text-align:center; gap:14px; }
.footer-brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:700; font-size:1.2rem; color:#fff; }
.footer-brand .logo-ring{ stroke:rgba(255,255,255,0.2); }
.footer-brand .logo-pulse{ stroke:var(--secondary); }
.footer-tagline{ font-size:0.9rem; }
.footer-links{ display:flex; gap:22px; flex-wrap:wrap; justify-content:center; margin-top:6px; }
.footer-links a{ font-size:0.85rem; transition:color .25s; }
.footer-links a:hover{ color:#fff; }
.footer-copy{ font-size:0.78rem; color:#7488AE; margin-top:14px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .problem-grid{ grid-template-columns:repeat(2,1fr); }
  .wristband-layout, .dispenser-layout{ grid-template-columns:1fr; }
  .device-illustration, .dispenser-illustration{ max-width:280px; margin:0 auto; }
  .feature-grid{ grid-template-columns:repeat(2,1fr); }
  .vitals-grid{ grid-template-columns:repeat(2,1fr); }
  .dashboard-bottom{ grid-template-columns:1fr; }
  .emergency-grid{ grid-template-columns:repeat(2,1fr); }
  .impact-grid{ grid-template-columns:repeat(2,1fr); }
  .contact-grid{ grid-template-columns:repeat(2,1fr); }
  .arch-split{ gap:80px; }
}

@media (max-width:860px){
  .nav-links{ display:none; }
  .nav-toggle{ display:flex; }
  .nav-links.open{
    display:flex; position:absolute; top:74px; left:0; right:0; background:#fff; flex-direction:column;
    padding:20px 24px; gap:16px; box-shadow:var(--shadow-md); border-bottom:1px solid var(--line);
  }
  .nav-cta{ display:none; }
  .solution-flow{ flex-direction:column; align-items:stretch; }
  .solution-connector{ width:2px; height:28px; margin:0 auto; }
}

@media (max-width:680px){
  .section{ padding:80px 0; }
  .problem-grid, .feature-grid, .feature-grid.two-col, .vitals-grid, .emergency-grid, .impact-grid, .contact-grid{ grid-template-columns:1fr; }
  .hero-stats{ flex-direction:column; align-items:center; }
  .dashboard-top{ flex-direction:column; align-items:flex-start; }
  .arch-split{ gap:24px; }
  .arch-branch{ flex-direction:column; gap:18px; }
  .impact-stats{ flex-direction:column; }
  .roadmap-timeline{ padding-left:26px; }
  .roadmap-marker{ left:-41px; width:28px; height:28px; font-size:0.8rem; }
}