/* ─── Tokens ─────────────────────────────────────────── */
:root {
  --bg:          #0b0f1a;
  --bg-mid:      #111827;
  --surface:     #1a2035;
  --surface-2:   #243052;
  --border:      #2a3550;
  --border-hi:   #3b5080;

  --text:        #e2e8f0;
  --text-2:      #8892a4;
  --text-3:      #556070;

  --accent:      #3b82f6;
  --accent-dim:  rgba(59,130,246,0.12);
  --accent-glow: rgba(59,130,246,0.25);
  --green:       #10b981;
  --green-dim:   rgba(16,185,129,0.12);
  --amber:       #f59e0b;
  --red:         #ef4444;

  --r: 8px;
  --r-sm: 5px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:          #f0f4fb;
    --bg-mid:      #e8eef8;
    --surface:     #ffffff;
    --surface-2:   #f1f5fd;
    --border:      #d1daf0;
    --border-hi:   #a8b8d8;
    --text:        #0f172a;
    --text-2:      #475569;
    --text-3:      #94a3b8;
    --accent-dim:  rgba(59,130,246,0.08);
    --accent-glow: rgba(59,130,246,0.15);
    --green-dim:   rgba(16,185,129,0.08);
  }
}
:root[data-theme="dark"] {
  --bg:#0b0f1a; --bg-mid:#111827; --surface:#1a2035; --surface-2:#243052;
  --border:#2a3550; --border-hi:#3b5080;
  --text:#e2e8f0; --text-2:#8892a4; --text-3:#556070;
  --accent-dim:rgba(59,130,246,0.12); --accent-glow:rgba(59,130,246,0.25);
  --green-dim:rgba(16,185,129,0.12);
}
:root[data-theme="light"] {
  --bg:#f0f4fb; --bg-mid:#e8eef8; --surface:#ffffff; --surface-2:#f1f5fd;
  --border:#d1daf0; --border-hi:#a8b8d8;
  --text:#0f172a; --text-2:#475569; --text-3:#94a3b8;
  --accent-dim:rgba(59,130,246,0.08); --accent-glow:rgba(59,130,246,0.15);
  --green-dim:rgba(16,185,129,0.08);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Layout helpers ─────────────────────────────────── */
.wrap { max-width: 100%; margin: 0 auto; padding: 0 28px; }
.section { padding: 50px 0; }
.section + .section { border-top: 1px solid var(--border); }

/* ─── Hero ───────────────────────────────────────────── */
.hero { padding: 40px 0 40px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: .9rem;
  color: var(--accent); letter-spacing: .06em; text-transform: uppercase;
  background: var(--accent-dim); border: 1px solid rgba(59,130,246,.2);
  padding: 4px 12px; border-radius: 100px; margin-bottom: 22px;
}
.hero-eyebrow::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); animation: pulse 2s ease infinite;
}
.hero-sub {
  font-size: 1.1rem; color: var(--text-2); max-width: 90%;
  line-height: 1.65; margin-bottom: 36px;
}
.hero-stats {
  display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 38px;
}
.stat-chip {
  display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 8px 14px; border-radius: var(--r);
  font-size: 1rem;
}
.stat-chip strong {
  font-family: var(--mono); font-size: 1rem; font-weight: 700;
  color: var(--text); font-variant-numeric: tabular-nums;
}
.stat-chip span { color: var(--text-2); }

/* ─── Dashboard mockup ───────────────────────────────── */
.mockup-shell {
  border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,.4), 0 0 0 1px rgba(255,255,255,.04) inset;
}
.mockup-bar {
  background: var(--surface-2); border-bottom: 1px solid var(--border);
  padding: 10px 14px; display: flex; align-items: center; gap: 8px;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ef4444; } .dot-y { background: #f59e0b; } .dot-g { background: #10b981; }
.mockup-url {
  flex: 1; background: var(--bg); border-radius: 4px;
  font-size: .72rem; font-family: var(--mono); color: var(--text-3);
  padding: 4px 10px; border: 1px solid var(--border);
}
.mockup-body {
  display: flex; background: var(--bg-mid); min-height: 260px;
}
.mockup-sidebar {
  width: 160px; flex-shrink: 0;
  background: var(--surface); border-right: 1px solid var(--border);
  padding: 16px 10px;
}
.mockup-brand {
  font-size: .82rem; font-weight: 700; color: var(--accent);
  font-family: var(--mono); padding: 6px 8px; margin-bottom: 8px;
}
.mock-nav-item {
  font-size: .74rem; color: var(--text-2); padding: 6px 8px;
  border-radius: 5px; margin-bottom: 2px; cursor: default;
  transition: all .1s;
}
.mock-nav-item.active {
  background: var(--accent-dim); color: var(--accent); font-weight: 600;
}
.mock-nav-item:not(.active):hover { background: var(--surface-2); color: var(--text); }

.mockup-main { flex: 1; padding: 20px; }
.mock-title {
  font-size: .8rem; font-weight: 700; color: var(--text);
  margin-bottom: 14px; letter-spacing: -.01em;
}
.mock-metrics {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin-bottom: 14px;
}
.mock-metric {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 7px; padding: 10px 12px;
}
.mock-metric-label { font-size: .65rem; color: var(--text-2); margin-bottom: 4px; }
.mock-metric-val {
  font-size: 1.05rem; font-weight: 700; font-family: var(--mono);
  color: var(--text); font-variant-numeric: tabular-nums;
}
.mock-metric-val.green { color: var(--green); }
.mock-sites {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 7px; padding: 10px 12px;
}
.mock-sites-header {
  font-size: .65rem; font-weight: 600; color: var(--text-2);
  text-transform: uppercase; letter-spacing: .05em; margin-bottom: 8px;
}
.mock-site-row {
  display: flex; align-items: center; justify-content: space-between;
  font-size: .68rem; color: var(--text-2); padding: 3px 0;
  border-bottom: 1px solid var(--border);
}
.mock-site-row:last-child { border-bottom: none; }
.mock-site-name { font-family: var(--mono); color: var(--text); }
.mock-status {
  display: flex; align-items: center; gap: 4px;
  font-size: .65rem; color: var(--green);
}
.mock-status::before {
  content: ''; width: 5px; height: 5px; border-radius: 50%;
  background: var(--green); animation: pulse 2s ease infinite;
}

/* ─── Features grid ──────────────────────────────────── */
.features-header { margin-bottom: 44px; }
.section-label {
  font-family: var(--mono); font-size: .72rem;
  color: var(--text-3); text-transform: uppercase; letter-spacing: .08em;
  margin-bottom: 10px;
}
.features-header h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700; letter-spacing: -.03em; text-wrap: balance;
}
.features-header p { color: var(--text-2); margin-top: 10px; max-width: 480px; }
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr));
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--r); overflow: hidden;
}
.feature-card {
  background: var(--surface); padding: 28px 28px 28px 24px;
  position: relative; transition: background .15s;
  border-left: 3px solid transparent;
}
.feature-card:hover {
  background: var(--surface-2);
  border-left-color: var(--accent);
}
.feature-icon {
  width: 36px; height: 36px; border-radius: 9px;
  background: var(--accent-dim); border: 1px solid rgba(59,130,246,.18);
  display: grid; place-items: center;
  font-size: 1rem; margin-bottom: 14px;
}
.feature-card h3 {
  font-size: 1.1rem; font-weight: 700; letter-spacing: -.02em;
  margin-bottom: 7px;
}
.feature-card p { font-size: .85rem; color: var(--text-2); line-height: 1.6; }
.feature-tags {
  display: flex; flex-wrap: wrap; gap: 5px; margin-top: 14px;
}
.tag {
  font-family: var(--mono); font-size: .68rem; color: var(--text-3);
  background: var(--bg); border: 1px solid var(--border);
  padding: 2px 7px; border-radius: 4px;
}

/* ─── Architecture ───────────────────────────────────── */
.arch-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.arch-panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); overflow: hidden;
}
.arch-panel-header {
  background: var(--surface-2); border-bottom: 1px solid var(--border);
  padding: 12px 18px; font-size: .8rem; font-weight: 600;
  font-family: var(--mono); color: var(--text-2); letter-spacing: .03em;
}
.arch-stack { padding: 16px 18px; display: flex; flex-direction: column; gap: 10px; }
.stack-item {
  display: flex; align-items: center; gap: 12px;
}
.stack-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent);
}
.stack-dot.green { background: var(--green); }
.stack-dot.amber { background: var(--amber); }
.stack-item-name {
  font-size: 1rem; font-weight: 600; color: var(--text); min-width: 110px;
}
.stack-item-desc { font-size: .8rem; color: var(--text-2); }

.live-panel { padding: 18px; }
.live-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 0; border-bottom: 1px solid var(--border); gap: 12px;
}
.live-row:last-child { border-bottom: none; }
.live-label { font-size: .82rem; color: var(--text-2); }
.live-val {
  font-family: var(--mono); font-size: .88rem; font-weight: 700;
  color: var(--text); font-variant-numeric: tabular-nums;
}
.live-val.green { color: var(--green); }
.live-val.blue  { color: var(--accent); }
.progress-bar {
  flex: 1; height: 4px; background: var(--bg); border-radius: 2px;
  overflow: hidden; min-width: 60px;
}
.progress-fill {
  height: 100%; border-radius: 2px; background: var(--accent);
  transition: width .6s ease;
}
.progress-fill.green { background: var(--green); }
.progress-fill.amber { background: var(--amber); }

/* ─── Use-case strip ─────────────────────────────────── */
.usecase-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px,2fr)); gap: 16px;
}
.usecase-card {
  border: 1px solid var(--border); border-radius: var(--r);
  padding: 20px; background: var(--surface);
  transition: border-color .15s, box-shadow .15s;
}
.usecase-card:hover {
  border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent-glow);
}
.usecase-num {
  font-family: var(--mono); font-size: .68rem; color: var(--accent);
  font-weight: 700; letter-spacing: .04em; margin-bottom: 8px;
}
.usecase-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.usecase-card p { font-size: 1rem; color: var(--text-2); line-height: 1.55; }

/* ─── CTA / Footer ───────────────────────────────────── */
.cta {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 48px; text-align: left;
  background-image: radial-gradient(ellipse 60% 80% at 90% 50%, var(--accent-dim), transparent);
}
.cta h2 { font-size: 1.6rem; font-weight: 700; letter-spacing: -.03em; margin-bottom: 10px; }
.cta p { color: var(--text-2); margin-bottom: 24px; max-width: 420px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #fff; font-weight: 600;
  padding: 11px 22px; border-radius: var(--r); font-size: .9rem;
  transition: opacity .15s; cursor: pointer; border: none;
  font-family: var(--sans);
}
.btn-primary:hover { opacity: .88; text-decoration: none; }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--text-2); font-weight: 500;
  padding: 11px 22px; border-radius: var(--r); font-size: .9rem;
  border: 1px solid var(--border); transition: all .15s; cursor: pointer;
  font-family: var(--sans);
}
.btn-ghost:hover { border-color: var(--border-hi); color: var(--text); text-decoration: none; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

footer {
  border-top: 1px solid var(--border);
  padding: 32px 0; margin-top: 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-left { display: flex; align-items: center; gap: 10px; }
.footer-logo { font-size: .9rem; font-weight: 700; font-family: var(--mono); color: var(--accent); }
.footer-desc { font-size: .8rem; color: var(--text-3); }
.footer-meta { font-size: .78rem; color: var(--text-3); font-family: var(--mono); }

/* ─── Animations ─────────────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .45; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate { animation: fadeUp .5s ease both; }
.d1 { animation-delay: .05s; }
.d2 { animation-delay: .12s; }
.d3 { animation-delay: .20s; }
.d4 { animation-delay: .28s; }

@media (prefers-reduced-motion: reduce) {
  .animate, @keyframes { animation: none !important; }
}

/* ─── Responsive ─────────────────────────────────────── */
@media (max-width: 720px) {
  .arch-grid { grid-template-columns: 1fr; }
  .mock-metrics { grid-template-columns: repeat(2,1fr); }
  .mockup-sidebar { display: none; }
  .topbar-nav { display: none; }
  .cta { padding: 32px 24px; }
}
@media (max-width: 480px) {
  .wrap { padding: 0 18px; }
  .hero-stats { gap: 8px; }
  .section { padding: 52px 0; }
}