/* ============================================================
   NetWatch — site styles
   Observatory aesthetic: deep canvas, instrument-glow cyan,
   scope motif, monospace technical accents.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --canvas-top: #0a0d12;
  --canvas-bottom: #11141c;
  --surface: #161922;
  --surface-hi: #1d212c;
  --accent: #5cd9db;          /* instrument cyan-teal */
  --accent-deep: #2fa8aa;
  --good: #66dba0;
  --amber: #fbbd5c;
  --danger: #fb7474;
  --info: #76aefb;
  --text: #eef2f6;
  --text-dim: #8b93a3;
  --text-faint: #5a6473;
  --stroke: rgba(255,255,255,0.07);
  --card-glow: rgba(255,255,255,0.14);
  --nav-bg: rgba(10,13,18,0.7);
  --display: 'Sora', sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --maxw: 1140px;
}

/* Light theme — a "daylight observatory": soft paper canvas, deeper accent */
[data-theme="light"] {
  --canvas-top: #f4f6fa;
  --canvas-bottom: #e9edf3;
  --surface: #ffffff;
  --surface-hi: #eef1f6;
  --accent: #0f8c8f;          /* deeper teal for contrast on light */
  --accent-deep: #0b6e70;
  --good: #1f9d63;
  --amber: #b9821a;
  --danger: #cf4040;
  --info: #2767c9;
  --text: #161a22;
  --text-dim: #59626f;
  --text-faint: #98a1ad;
  --stroke: rgba(10,15,25,0.10);
  --card-glow: rgba(10,15,25,0.05);
  --nav-bg: rgba(244,246,250,0.75);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--display);
  background: var(--canvas-top);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.5s ease, color 0.5s ease;
}

/* Atmospheric background: gradient + faint grid + glow blooms */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 100%, color-mix(in srgb, var(--info) 8%, transparent), transparent 55%),
    linear-gradient(180deg, var(--canvas-top), var(--canvas-bottom));
  z-index: -2;
  transition: background 0.5s ease;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--stroke) 1px, transparent 1px),
    linear-gradient(90deg, var(--stroke) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  opacity: 0.5;
  z-index: -1;
}

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section.wrap { padding: 100px 24px; max-width: var(--maxw); margin: 0 auto; position: relative; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: '';
  width: 22px; height: 1px;
  background: var(--accent);
}

h1, h2, h3 { font-weight: 700; line-height: 1.12; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 18px; }
h3 { font-size: 1.3rem; }
p { color: var(--text-dim); }
.lead { font-size: 1.2rem; color: var(--text-dim); max-width: 620px; }

/* ---------- Nav ---------- */
nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--stroke);
  transition: background 0.5s ease;
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 16px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; text-decoration: none; color: var(--text); }
.brand .mark { width: 30px; height: 30px; }
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-links a.cta {
  color: var(--canvas-top); background: var(--accent);
  padding: 9px 18px; border-radius: 10px; font-weight: 600;
  box-shadow: 0 6px 20px rgba(92,217,219,0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-links a.cta:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(92,217,219,0.35); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* ---------- Hero ---------- */
.hero { padding: 90px 0 60px; text-align: center; }
.hero h1 { margin-bottom: 24px; }
.hero .lead { margin: 0 auto 36px; }
.hero .gradient-text {
  background: linear-gradient(120deg, var(--accent), var(--info));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn {
  font-family: var(--display); font-weight: 600; font-size: 1rem;
  padding: 14px 28px; border-radius: 12px; text-decoration: none;
  cursor: pointer; border: none; transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  display: inline-flex; align-items: center; gap: 9px;
}
.btn-primary { background: var(--accent); color: var(--canvas-top); box-shadow: 0 8px 24px rgba(92,217,219,0.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(92,217,219,0.4); }
.btn-ghost { background: var(--surface); color: var(--text); border: 1px solid var(--stroke); }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--accent); }

/* ---------- Scope hero visual ---------- */
.scope {
  width: min(420px, 78vw); aspect-ratio: 1;
  margin: 56px auto 0; position: relative;
}
.scope svg { width: 100%; height: 100%; overflow: visible; }
.scope .ring { fill: none; stroke: var(--accent); opacity: 0.35; }
.scope .ring.outer { opacity: 0.6; stroke-width: 1.6; }
.scope .sweep { transform-origin: 50% 50%; animation: sweep 4s linear infinite; }
.scope .crosshair { stroke: var(--accent); opacity: 0.2; stroke-width: 1; }
.scope .core { fill: var(--accent); filter: drop-shadow(0 0 14px var(--accent)); animation: pulse 2.4s ease-in-out infinite; }
.scope .blip { fill: var(--info); opacity: 0; animation: blip 4s linear infinite; }
.scope .blip.b2 { animation-delay: 1.3s; fill: var(--amber); }
.scope .blip.b3 { animation-delay: 2.6s; }

@keyframes sweep { to { transform: rotate(360deg); } }
@keyframes pulse { 0%,100% { opacity: 0.85; } 50% { opacity: 1; transform: scale(1.06); } }
@keyframes blip { 0%,40% { opacity: 0; } 45% { opacity: 1; } 90%,100% { opacity: 0; } }

/* ---------- Feature grid ---------- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s;
}
.card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--card-glow), transparent);
}
.card:hover { transform: translateY(-4px); border-color: rgba(92,217,219,0.3); }
.card .ic {
  width: 46px; height: 46px; border-radius: 12px;
  background: rgba(92,217,219,0.12); color: var(--accent);
  display: grid; place-items: center; margin-bottom: 18px;
  font-size: 1.4rem;
}
.card h3 { margin-bottom: 9px; }
.card p { font-size: 0.96rem; }

/* ---------- Section header ---------- */
.sec-head { max-width: 640px; margin-bottom: 50px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head.center .eyebrow { }

/* ---------- Use-case rows ---------- */
.usecase {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
  margin-bottom: 90px;
}
.usecase:nth-child(even) .uc-visual { order: -1; }
.uc-visual {
  background: var(--surface); border: 1px solid var(--stroke);
  border-radius: 20px; padding: 32px; min-height: 280px;
  display: flex; flex-direction: column; gap: 14px; justify-content: center;
  position: relative; overflow: hidden;
}
.uc-tag { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); }
.uc-list { list-style: none; margin-top: 18px; }
.uc-list li { padding: 11px 0 11px 28px; position: relative; color: var(--text-dim); border-bottom: 1px solid var(--stroke); }
.uc-list li:last-child { border-bottom: none; }
.uc-list li::before {
  content: '›'; position: absolute; left: 6px; color: var(--accent); font-family: var(--mono); font-weight: 700;
}

/* terminal-ish mock inside use-case visuals */
.mock {
  font-family: var(--mono); font-size: 0.82rem; line-height: 1.9;
}
.mock .row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--stroke); }
.mock .row:last-child { border: none; }
.mock .k { color: var(--text-dim); }
.mock .v { color: var(--accent); }
.mock .v.warn { color: var(--amber); }
.mock .v.bad { color: var(--danger); }
.mock .v.ok { color: var(--good); }

/* ---------- Stat band ---------- */
.stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; text-align: center; }
.stat .num { font-family: var(--mono); font-size: 2.4rem; font-weight: 700; color: var(--accent); }
.stat .lbl { font-size: 0.85rem; color: var(--text-dim); margin-top: 6px; }

/* ---------- Privacy / prose ---------- */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { margin-top: 48px; font-size: 1.7rem; }
.prose h3 { margin-top: 30px; color: var(--accent); font-size: 1.15rem; }
.prose p, .prose li { color: var(--text-dim); margin-bottom: 14px; }
.prose ul { margin: 0 0 16px 22px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--text); }
.prose .updated { font-family: var(--mono); font-size: 0.85rem; color: var(--text-faint); }
.callout {
  background: var(--surface); border: 1px solid var(--stroke);
  border-left: 3px solid var(--accent); border-radius: 12px;
  padding: 20px 24px; margin: 24px 0;
}
.callout p { margin: 0; color: var(--text); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--stroke); padding: 50px 0 40px; margin-top: 40px; }
.foot-inner { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 30px; }
.foot-links { display: flex; gap: 40px; flex-wrap: wrap; }
.foot-col h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-faint); margin-bottom: 14px; font-weight: 600; }
.foot-col a { display: block; color: var(--text-dim); text-decoration: none; font-size: 0.92rem; margin-bottom: 9px; transition: color 0.2s; }
.foot-col a:hover { color: var(--accent); }
.foot-bottom { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--stroke); font-size: 0.85rem; color: var(--text-faint); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.foot-bottom a { color: var(--text-dim); text-decoration: none; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.2,0.8,0.2,1), transform 0.7s cubic-bezier(0.2,0.8,0.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Badge / pill ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em;
  padding: 6px 13px; border-radius: 999px;
  background: rgba(92,217,219,0.1); color: var(--accent);
  border: 1px solid rgba(92,217,219,0.2);
}
.pill.dot::before { content:''; width:6px; height:6px; border-radius:50%; background: var(--good); box-shadow: 0 0 8px var(--good); }

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .usecase { grid-template-columns: 1fr; gap: 24px; }
  .usecase:nth-child(even) .uc-visual { order: 0; }
  .stats { grid-template-columns: repeat(2,1fr); gap: 30px; }
  .nav-links { position: fixed; inset: 64px 0 auto 0; flex-direction: column; background: var(--canvas-bottom); padding: 24px; gap: 18px; border-bottom: 1px solid var(--stroke); transform: translateY(-130%); transition: transform 0.3s; }
  .nav-links.open { transform: none; }
  .nav-toggle { display: block; }
  section.wrap { padding: 70px 24px; }
}

/* ============================================================
   Theme toggle + Apple-grade polish refinements
   ============================================================ */

/* Theme toggle button in nav */
.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--stroke);
  width: 38px; height: 38px;
  border-radius: 10px;
  display: grid; place-items: center;
  cursor: pointer;
  color: var(--text-dim);
  transition: color 0.2s, border-color 0.2s, transform 0.2s, background 0.5s;
  position: relative;
  overflow: hidden;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.theme-toggle svg { width: 18px; height: 18px; transition: opacity 0.3s, transform 0.4s; position: absolute; }
.theme-toggle .icon-sun { opacity: 0; transform: rotate(-90deg) scale(0.5); }
.theme-toggle .icon-moon { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="light"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(90deg) scale(0.5); }

/* Refined focus-visible states (accessibility / ADA) */
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 8px;
}

/* Smoother, more intentional card hover — subtle scale + glow lift */
.card { transition: transform 0.35s cubic-bezier(0.2,0.8,0.2,1), border-color 0.35s, box-shadow 0.35s; }
.card:hover {
  box-shadow: 0 18px 50px -20px color-mix(in srgb, var(--accent) 35%, transparent);
}

/* Card icon gets a soft glow ring on card hover */
.card .ic { transition: transform 0.35s cubic-bezier(0.2,0.8,0.2,1), box-shadow 0.35s; }
.card:hover .ic {
  transform: scale(1.06);
  box-shadow: 0 0 24px -4px color-mix(in srgb, var(--accent) 50%, transparent);
}

/* Buttons: a light sweep on hover for a premium feel */
.btn-primary { position: relative; overflow: hidden; }
.btn-primary::after {
  content: '';
  position: absolute; top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s cubic-bezier(0.2,0.8,0.2,1);
}
.btn-primary:hover::after { left: 130%; }

/* Eyebrow line draws in on reveal */
.reveal.in .eyebrow::before { animation: lineGrow 0.6s cubic-bezier(0.2,0.8,0.2,1) both; }
@keyframes lineGrow { from { width: 0; opacity: 0; } to { width: 22px; opacity: 1; } }

/* Section number watermark for editorial feel (optional, via data attr) */
.sec-head[data-num]::before {
  content: attr(data-num);
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 12px;
}

/* Refined stat numbers — slight gradient */
.stat .num {
  background: linear-gradient(135deg, var(--accent), var(--info));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Honor reduced motion — kill ambient/looping animation */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .scope .sweep, .scope .core, .scope .blip { animation: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* Light-mode scope tuning — softer glow so it doesn't blow out */
[data-theme="light"] .scope .core { filter: drop-shadow(0 0 8px var(--accent)); }
[data-theme="light"] .btn-primary::after { background: linear-gradient(100deg, transparent, rgba(255,255,255,0.6), transparent); }