/* PhotonGrid – shared design system */

/* ── Tokens ─────────────────────────────────── */
:root {
  --pg-bg:      #060913;
  --pg-panel:   #0a101f;
  --pg-border:  #1e293b;
  --pg-border2: #334155;
  --pg-cyan:    #00d2ff;
  --pg-blue:    #0052cc;
  --pg-text:    #e2e8f0;
  --pg-muted:   #94a3b8;
  --pg-dim:     #64748b;
}

/* ── Base ────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  background-color: var(--pg-bg);
  color: var(--pg-text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }

/* ── Navigation ──────────────────────────────── */
.pg-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(6, 9, 19, 0.92);
  border-bottom: 1px solid var(--pg-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-active {
  color: var(--pg-cyan) !important;
  border-bottom: 2px solid var(--pg-cyan);
}

/* mobile menu hidden by default */
#mobile-menu {
  display: none;
}
#mobile-menu.open {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 0 14px;
  border-top: 1px solid var(--pg-border);
}

/* ── Buttons ─────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #0052cc 0%, #00d2ff 100%);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.625rem 1.25rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s;
  white-space: nowrap;
}
.btn-primary:hover { opacity: 0.88; color: #fff; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--pg-cyan);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.5625rem 1.125rem;
  border-radius: 0.5rem;
  border: 1px solid var(--pg-cyan);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s;
  white-space: nowrap;
}
.btn-outline:hover { background: rgba(0, 210, 255, 0.08); }

/* ── Status badges ───────────────────────────── */
.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #22c55e;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.25);
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge-soon {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pg-muted);
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid rgba(148, 163, 184, 0.2);
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}

/* ── Section labels ──────────────────────────── */
.eyebrow {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pg-cyan);
}

/* ── Form controls ───────────────────────────── */
.pg-input,
.pg-select {
  width: 100%;
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: 6px;
  padding: 6px 8px;
  color: var(--pg-text);
  font-size: 0.8125rem;
  outline: none;
  transition: border-color 0.15s;
}
.pg-input:focus,
.pg-select:focus { border-color: var(--pg-cyan); }

.pg-input-manual {
  width: 100%;
  background: #1c2212;
  border: 1px solid #524c13;
  border-radius: 6px;
  padding: 6px 8px;
  color: #fbbf24;
  font-size: 0.8125rem;
  font-weight: 700;
  outline: none;
  transition: border-color 0.15s;
}
.pg-input-manual:focus { border-color: #d97706; }

/* ── Topology card rows ──────────────────────── */
.topo-fiber {
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
@media (min-width: 768px) {
  .topo-fiber {
    flex-direction: row;
    align-items: center;
  }
}

.topo-edfa {
  background: #100b0b;
  border: 1px solid #442323;
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
@media (min-width: 768px) {
  .topo-edfa {
    flex-direction: row;
    align-items: center;
  }
}

.topo-wss {
  background: rgba(0, 210, 255, 0.05);
  border: 1px solid rgba(0, 210, 255, 0.2);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
@media (min-width: 768px) {
  .topo-wss {
    flex-direction: row;
    align-items: center;
  }
}

/* ── Utility ─────────────────────────────────── */
.pg-divider {
  border: none;
  border-top: 1px solid var(--pg-border);
  margin: 0;
}

.pg-card {
  background: var(--pg-panel);
  border: 1px solid var(--pg-border);
  border-radius: 12px;
  padding: 1.25rem;
  transition: border-color 0.15s;
}
.pg-card:hover { border-color: var(--pg-border2); }

/* ── Footer ──────────────────────────────────── */
.pg-footer {
  background: var(--pg-bg);
  border-top: 1px solid var(--pg-border);
  padding: 2rem 0;
  margin-top: auto;
}