/* ============================================================
   AiDA Advisory — Brand-Matched Dark Theme
   Electric blue glow · node network · pulse waveform
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,600;12..96,700;12..96,800&family=Sora:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg: #05080F;
  --bg-soft: #0A111E;
  --panel: #0D1626;
  --panel-2: #111D31;
  --line: rgba(95, 160, 230, 0.14);
  --line-strong: rgba(95, 160, 230, 0.28);

  --blue: #2D9CFF;
  --blue-bright: #4FB0FF;
  --cyan: #5FD0FF;
  --cyan-soft: #8FE0FF;

  --text: #DCEBF7;
  --text-soft: #8FA8C2;
  --text-faint: #5C748F;

  --glow: 0 0 24px rgba(45, 156, 255, 0.45);
  --glow-soft: 0 0 40px rgba(45, 156, 255, 0.25);
  --grid: rgba(95, 160, 230, 0.035);

  --font-display: 'Bricolage Grotesque', sans-serif;
  --font-body: 'Sora', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --maxw: 1240px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(45,156,255,0.12), transparent 60%),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 100% 100%, 44px 44px, 44px 44px;
  color: var(--text);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 2.5rem; }

/* ── Mono label ───────────────────────────────────────────── */
.mono-label {
  font-family: var(--font-mono);
  font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex; align-items: center; gap: 0.6rem;
}
.mono-label::before {
  content: ''; width: 28px; height: 1px;
  background: var(--cyan); display: inline-block;
  box-shadow: 0 0 8px var(--cyan);
}

/* ── Navigation ───────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(5, 8, 15, 0.78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.nav-logo img { height: 42px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 2.4rem; }
.nav-links a {
  font-size: 0.86rem; font-weight: 500; color: var(--text-soft);
  transition: color 0.2s, text-shadow 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--cyan); text-shadow: 0 0 12px rgba(95,208,255,0.5); }
.nav-cta {
  font-family: var(--font-mono); font-size: 0.76rem; font-weight: 500;
  letter-spacing: 0.05em; padding: 0.62rem 1.2rem;
  background: var(--blue); color: #fff !important; border-radius: 3px;
  transition: all 0.2s; box-shadow: var(--glow);
}
.nav-cta:hover { background: var(--blue-bright); box-shadow: 0 0 30px rgba(45,156,255,0.65); text-shadow: none; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--cyan); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono); font-size: 0.82rem; font-weight: 500; letter-spacing: 0.03em;
  padding: 0.95rem 1.8rem; border-radius: 3px; transition: all 0.22s ease; cursor: pointer; border: none;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: var(--glow); }
.btn-primary:hover { background: var(--blue-bright); transform: translateY(-2px); box-shadow: 0 0 34px rgba(45,156,255,0.7); }
.btn-ghost { background: transparent; color: var(--cyan); border: 1.5px solid var(--line-strong); }
.btn-ghost:hover { border-color: var(--cyan); box-shadow: var(--glow-soft); }
.btn .arrow { transition: transform 0.22s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero { padding: 12rem 0 6rem; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.12fr 0.88fr; gap: 4rem; align-items: center; }
.hero h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.8rem, 6vw, 4.6rem); line-height: 0.98;
  letter-spacing: -0.03em; margin: 1.5rem 0;
}
.hero h1 .accent { color: var(--cyan); text-shadow: 0 0 30px rgba(95,208,255,0.45); }
.hero .lede { font-size: 1.18rem; color: var(--text-soft); max-width: 30rem; margin-bottom: 2.2rem; font-weight: 300; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Hero visual — node network + pulse */
.hero-visual {
  position: relative; aspect-ratio: 1 / 1;
  display: flex; align-items: center; justify-content: center;
}
.hero-visual svg { width: 100%; height: 100%; overflow: visible; }
.pulse-line { stroke-dasharray: 1200; stroke-dashoffset: 1200; animation: pulseDraw 3s ease-in-out infinite; }
@keyframes pulseDraw {
  0% { stroke-dashoffset: 1200; }
  45% { stroke-dashoffset: 0; }
  55% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -1200; }
}
.node-glow { animation: nodePulse 2.6s ease-in-out infinite; }
@keyframes nodePulse { 0%,100% { opacity: 0.55; } 50% { opacity: 1; } }
.ring-rot { transform-origin: center; animation: ringRot 26s linear infinite; }
@keyframes ringRot { to { transform: rotate(360deg); } }

/* ── Sections ─────────────────────────────────────────────── */
.section { padding: 6rem 0; position: relative; }
.section-head { max-width: 40rem; margin-bottom: 3.5rem; }
.section-head h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem); line-height: 1.05;
  letter-spacing: -0.02em; margin: 1.2rem 0 1rem; color: #fff;
}
.section-head p { color: var(--text-soft); font-size: 1.08rem; font-weight: 300; }
.section.feature {
  background: var(--bg-soft);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}

/* ── Services ─────────────────────────────────────────────── */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.svc-card {
  background: linear-gradient(160deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--line); border-radius: 6px; padding: 2.2rem 2rem;
  position: relative; transition: all 0.25s ease; overflow: hidden;
}
.svc-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease;
  box-shadow: 0 0 12px var(--blue);
}
.svc-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 24px 50px -28px rgba(0,0,0,0.8), var(--glow-soft); }
.svc-card:hover::before { transform: scaleX(1); }
.svc-num { font-family: var(--font-mono); font-size: 0.74rem; color: var(--cyan); letter-spacing: 0.1em; margin-bottom: 1.2rem; }
.svc-card h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; margin-bottom: 0.8rem; letter-spacing: -0.01em; color: #fff; }
.svc-card p { color: var(--text-soft); font-size: 0.96rem; font-weight: 300; }
.svc-card ul { list-style: none; margin-top: 1.2rem; }
.svc-card li { font-size: 0.88rem; color: var(--text-soft); padding-left: 1.3rem; position: relative; margin-bottom: 0.5rem; }
.svc-card li::before { content: '+'; position: absolute; left: 0; color: var(--cyan); font-family: var(--font-mono); font-weight: 700; }

/* ── Portfolio ────────────────────────────────────────────── */
.port-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.port-card {
  display: block; background: linear-gradient(160deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--line); border-radius: 6px; padding: 2.2rem;
  transition: all 0.25s ease; position: relative; overflow: hidden;
}
.port-card:hover { transform: translateY(-4px); border-color: var(--blue); box-shadow: 0 24px 50px -28px rgba(0,0,0,0.8), var(--glow-soft); }
.port-card .port-cat { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 1rem; }
.port-card h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.55rem; letter-spacing: -0.01em; margin-bottom: 0.6rem; color: #fff; }
.port-card h3 .pname { color: var(--cyan); }
.port-card p { color: var(--text-soft); font-size: 0.95rem; font-weight: 300; margin-bottom: 1.4rem; }
.port-card .port-link { font-family: var(--font-mono); font-size: 0.78rem; font-weight: 500; color: var(--cyan); display: inline-flex; align-items: center; gap: 0.5rem; }
.port-card .port-link .arrow { transition: transform 0.22s; }
.port-card:hover .port-link .arrow { transform: translateX(4px); }
.port-card .status { position: absolute; top: 2.2rem; right: 2.2rem; font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.25rem 0.6rem; border-radius: 3px; }
.status.live { background: rgba(45,156,255,0.14); color: var(--cyan); border: 1px solid var(--line-strong); }

/* ── Process ──────────────────────────────────────────────── */
.proc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.proc-step { padding: 2rem 1.5rem 2rem 0; border-top: 2px solid var(--line-strong); position: relative; }
.proc-step::before { content: ''; position: absolute; top: -2px; left: 0; width: 40px; height: 2px; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.proc-step .pnum { font-family: var(--font-mono); font-size: 0.78rem; color: var(--cyan); letter-spacing: 0.1em; margin-bottom: 1rem; }
.proc-step h4 { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; margin-bottom: 0.6rem; color: #fff; }
.proc-step p { color: var(--text-soft); font-size: 0.9rem; font-weight: 300; }

/* ── Why / credibility ────────────────────────────────────── */
.why-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 4rem; align-items: center; }
.why-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin-top: 2rem; }
.why-stat { border-left: 2px solid var(--blue); padding-left: 1.2rem; box-shadow: -8px 0 24px -16px var(--blue); }
.why-stat .num { font-family: var(--font-display); font-weight: 800; font-size: 2.4rem; line-height: 1; letter-spacing: -0.02em; color: #fff; }
.why-stat .num .u { color: var(--cyan); }
.why-stat .lbl { font-size: 0.84rem; color: var(--text-soft); margin-top: 0.4rem; }

/* ── CTA band ─────────────────────────────────────────────── */
.cta-band { padding: 6rem 0; text-align: center; position: relative; }
.cta-band h2 { font-family: var(--font-display); font-weight: 800; font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.0; letter-spacing: -0.03em; margin-bottom: 1.2rem; color: #fff; }
.cta-band h2 .accent { color: var(--cyan); text-shadow: 0 0 30px rgba(95,208,255,0.45); }
.cta-band p { color: var(--text-soft); font-size: 1.15rem; font-weight: 300; margin-bottom: 2.2rem; max-width: 34rem; margin-left: auto; margin-right: auto; }

/* ── Footer ───────────────────────────────────────────────── */
.footer { background: #03060C; border-top: 1px solid var(--line); padding: 4rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer h4 { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--cyan); margin-bottom: 1.2rem; }
.footer a { display: block; color: var(--text-soft); font-size: 0.92rem; margin-bottom: 0.6rem; transition: color 0.2s; }
.footer a:hover { color: var(--cyan); }
.footer-brand img { height: 48px; margin-bottom: 1rem; }
.footer-brand p { color: var(--text-soft); font-size: 0.92rem; font-weight: 300; max-width: 22rem; }
.footer-bottom { border-top: 1px solid var(--line); padding-top: 2rem; display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; color: var(--text-faint); flex-wrap: wrap; gap: 1rem; }
.footer-bottom .mono { font-family: var(--font-mono); }

/* ── Reveal ───────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-grid, .why-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-visual { max-width: 360px; margin: 0 auto; order: -1; }
  .svc-grid, .port-grid, .proc-grid { grid-template-columns: 1fr; }
  .why-stats { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 78px; left: 0; right: 0; background: var(--bg); padding: 1.5rem 2.5rem; gap: 1.2rem; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .wrap { padding: 0 1.5rem; }
}

/* ── Billing call-out band ────────────────────────────────── */
.callout {
  margin-top: 1.5rem;
  position: relative;
  border-radius: 8px;
  padding: 3rem 3rem;
  background:
    radial-gradient(ellipse 60% 120% at 85% 50%, rgba(45,156,255,0.18), transparent 70%),
    linear-gradient(135deg, var(--panel-2), var(--bg-soft));
  border: 1px solid var(--line-strong);
  overflow: hidden;
  box-shadow: 0 0 50px -20px rgba(45,156,255,0.4);
}
.callout::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.7;
}
.callout-grid { display: grid; grid-template-columns: 1.4fr 0.9fr; gap: 3rem; align-items: center; position: relative; z-index: 2; }
.callout h3 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.08;
  letter-spacing: -0.02em; color: #fff; margin-bottom: 1rem;
}
.callout h3 .accent { color: var(--cyan); text-shadow: 0 0 24px rgba(95,208,255,0.4); }
.callout p { color: var(--text-soft); font-size: 1.02rem; font-weight: 300; margin-bottom: 1.4rem; }
.callout-chips { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.callout-chips span {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.05em;
  color: var(--cyan); padding: 0.4rem 0.85rem; border-radius: 3px;
  background: rgba(45,156,255,0.1); border: 1px solid var(--line-strong);
}
.callout-visual { display: flex; align-items: center; justify-content: center; }
.callout-visual svg { width: 100%; max-width: 220px; height: auto; overflow: visible; }
.flow-node { animation: nodePulse 2.6s ease-in-out infinite; }
.flow-line { stroke-dasharray: 6 6; animation: flowDash 1.4s linear infinite; }
@keyframes flowDash { to { stroke-dashoffset: -24; } }

@media (max-width: 900px) {
  .callout { padding: 2.2rem 1.6rem; }
  .callout-grid { grid-template-columns: 1fr; gap: 2rem; }
  .callout-visual { order: -1; }
  .callout-visual svg { max-width: 180px; }
}