/* ==========================================================================
   SkandaShield — design tokens
   Graphite/signal-console aesthetic: near-black surfaces, phosphor signal
   green for "protected / active", coral for "threat / before", mono type
   for data & status, geometric sans for display, humanist sans for body.
   ========================================================================== */

:root {
  --bg:        #0a0e12;
  --bg-raised: #10161d;
  --surface:   #131a22;
  --surface-2: #1a232d;
  --border:    #223038;
  --border-soft: #1a252d;

  --text:       #e9eef2;
  --text-muted: #8fa0ac;
  --text-dim:   #5c6b76;

  --signal:      #5eead4;   /* protected / resolved */
  --signal-dim:  #2f6e64;
  --threat:      #ff6b5e;   /* attack / before */
  --amber:       #f5b95e;   /* caution / in-progress */

  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --container: 1180px;
  --radius: 10px;
  --radius-sm: 6px;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; color: var(--text-muted); }
p:last-child { margin-bottom: 0; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(94,234,212,0.15);
}

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--signal);
  color: #06201c;
  padding: 10px 16px;
  z-index: 999;
  font-family: var(--font-mono);
  font-size: 13px;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- focus ---------- */
:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10,14,18,0.82);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}
.brand .mark { flex: none; }
.brand .mono-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--signal);
  border: 1px solid var(--signal-dim);
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  gap: 2px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  display: inline-block;
  padding: 9px 14px;
  font-size: 14.5px;
  color: var(--text-muted);
  border-radius: 7px;
  transition: color .15s ease, background .15s ease;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a[aria-current="page"] { color: var(--signal); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--signal);
  color: #06201c;
}
.btn-primary:hover { background: #7ff2df; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--signal-dim); color: var(--signal); }
.btn-sm { padding: 8px 14px; font-size: 13.5px; }
.btn-block { width: 100%; justify-content: center; }

/* ---------- hero ---------- */
.hero {
  padding: 76px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 500px;
  background: radial-gradient(ellipse at 30% 0%, rgba(94,234,212,0.10), transparent 60%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  position: relative;
}
.hero h1 {
  font-size: clamp(30px, 4vw, 46px);
  max-width: 15ch;
}
.hero .lede {
  font-size: 17.5px;
  max-width: 46ch;
  color: var(--text-muted);
}
.hero-ctas { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }

.hero-visual {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg-raised), var(--bg));
  padding: 18px;
}
.hero-visual .caption {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-dim);
  margin-top: 12px;
}
.hero-visual .caption .live { color: var(--signal); }

/* ---------- sections ---------- */
section { padding: 72px 0; }
.section-border-top { border-top: 1px solid var(--border-soft); }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(24px, 3vw, 32px); }
.section-head .eyebrow { margin-bottom: 14px; }

.bg-raised { background: var(--bg-raised); }

/* ---------- pillar / card grids ---------- */
.grid {
  display: grid;
  gap: 20px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.card h3 {
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal);
  border: 1px solid var(--signal-dim);
  border-radius: 5px;
  padding: 2px 7px;
}
.card a.learn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--signal);
}
.card a.learn:hover { text-decoration: underline; }

/* ---------- band ---------- */
.band {
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: var(--surface);
}
.band-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.stat-row {
  display: flex;
  gap: 32px;
  margin-top: 22px;
  flex-wrap: wrap;
}
.stat { font-family: var(--font-mono); }
.stat .n { font-size: 26px; color: var(--signal); font-weight: 700; display:block; }
.stat .l { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .06em; }

/* ---------- client strip ---------- */
.strip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.strip-item {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 14px;
}

/* ---------- process / timeline ---------- */
.timeline {
  display: grid;
  gap: 18px;
}
.timeline-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-soft);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-item .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal);
  padding-top: 4px;
}

/* ---------- table-ish list ---------- */
.list-check { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.list-check li {
  display: flex;
  gap: 10px;
  color: var(--text-muted);
  font-size: 15px;
}
.list-check li::before {
  content: "";
  flex: none;
  width: 6px; height: 6px;
  margin-top: 9px;
  background: var(--signal);
  border-radius: 50%;
}

/* ---------- email contact (image format for spam protection) ---------- */
.email-contact {
  display: inline-block;
}

.email-image {
  height: 1.5em;
  width: auto;
  display: inline-block;
  vertical-align: middle;
  overflow: visible;
}

.email-text {
  font-family: var(--font-mono);
  font-size: 12px;
  fill: var(--text-muted);
  letter-spacing: 0.02em;
  user-select: none;
  pointer-events: none;
}

.email-image:hover .email-text {
  fill: var(--signal);
  cursor: pointer;
}

/* Inline email variant for footer bottom */
.contact-info {
  display: flex;
  align-items: center;
  gap: 4px;
}

.email-contact-inline {
  display: inline-flex;
  align-items: center;
}

.email-image-inline {
  height: 1em;
  width: auto;
  display: inline-block;
  overflow: visible;
}

.email-text-inline {
  font-family: var(--font-mono);
  font-size: 12px;
  fill: var(--text-dim);
  letter-spacing: 0.02em;
  user-select: none;
  pointer-events: none;
}

.email-contact-inline:hover .email-text-inline {
  fill: var(--signal);
  cursor: pointer;
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 48px 0 28px;
  margin-top: 40px;
  background: var(--bg-raised);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(4, 1fr);
  gap: 32px;
}
.footer-col h4 {
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-weight: 500;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.footer-col a { color: var(--text-muted); font-size: 14px; }
.footer-col a:hover { color: var(--signal); }
.footer-col a.channel-link { display: flex; align-items: center; gap: 8px; }
.footer-col a.channel-link svg { flex: none; width: 16px; height: 16px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--border-soft);
  font-size: 13px;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- floating channel widget ---------- */
.chat-fab-wrap {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.chat-panel {
  display: none;
  flex-direction: column;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
  min-width: 208px;
}
.chat-panel.open { display: flex; }
.chat-panel a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  transition: background .15s ease;
}
.chat-panel a:hover { background: var(--surface-2); }
.chat-panel a svg { flex: none; width: 20px; height: 20px; }
.chat-panel .chat-panel-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 4px 10px 2px;
}
.chat-fab {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--signal);
  color: #06201c;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(94,234,212,0.28);
}
.chat-fab svg { width: 24px; height: 24px; }
@media (max-width: 640px) {
  .chat-fab-wrap { right: 14px; bottom: 14px; }
}

/* ---------- page hero (secondary pages) ---------- */
.page-hero { padding: 56px 0 40px; }
.page-hero h1 { font-size: clamp(28px, 3.6vw, 40px); max-width: 22ch; }
.page-hero .lede { max-width: 62ch; font-size: 16.5px; }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--signal); }

/* ---------- service group ---------- */
.service-group {
  padding: 40px 0;
  border-bottom: 1px solid var(--border-soft);
}
.service-group:last-child { border-bottom: none; }
.service-group-head {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  margin-bottom: 22px;
}
.service-group-head .index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--signal);
  border: 1px solid var(--signal-dim);
  border-radius: var(--radius-sm);
  height: 40px; width: 40px;
  display: flex; align-items: center; justify-content: center;
}
.service-body { display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; }
.deliverables {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  align-self: start;
}
.deliverables h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-dim);
  margin-bottom: 14px;
}

/* ---------- articles ---------- */
.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.article-card h3 { font-size: 17px; }
.article-meta {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
}

/* ---------- study plan ---------- */
.plan-phase {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--surface);
}
.plan-phase .weeks {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal);
  margin-bottom: 8px;
  display: block;
}

/* ---------- contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 7px;
  font-family: var(--font-mono);
}
.field input, .field select, .field textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 13px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14.5px;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--signal-dim);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-detail {
  display: flex;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-soft);
}
.contact-detail:last-child { border-bottom: none; }
.contact-detail .k { font-family: var(--font-mono); font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .05em; }
.contact-detail .v { color: var(--text); font-size: 14.5px; }
.form-note { font-size: 13px; color: var(--text-dim); margin-top: 14px; }
#form-status { font-size: 13.5px; margin-top: 14px; }
#form-status.ok { color: var(--signal); }

/* ---------- hero signal-graph animation ---------- */
@keyframes pulse-ring {
  0%   { r: 20; opacity: .55; }
  70%  { r: 46; opacity: 0; }
  100% { r: 46; opacity: 0; }
}
@keyframes travel-threat {
  0%   { transform: translateX(0); opacity: 1; }
  46%  { transform: translateX(198px); opacity: 1; }
  52%  { transform: translateX(198px); opacity: 1; }
  58%  { transform: translateX(198px); opacity: 0; }
  100% { transform: translateX(198px); opacity: 0; }
}
@keyframes travel-safe {
  0%   { transform: translateX(0); opacity: 1; }
  92%  { transform: translateX(430px); opacity: 1; }
  100% { transform: translateX(430px); opacity: 0; }
}
@keyframes blocked-flash {
  0%, 44% { opacity: 0; transform: translateY(4px); }
  50%, 96% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; }
}
@keyframes dash-fade {
  0%, 44% { stroke-dashoffset: 240; opacity: .9; }
  52% { stroke-dashoffset: 40; opacity: .2; }
  100% { stroke-dashoffset: 40; opacity: 0; }
}
.pulse-ring { animation: pulse-ring 2.6s ease-out infinite; transform-origin: center; }
.pulse-ring.delay { animation-delay: 1.3s; }
.packet-threat { animation: travel-threat 4.4s linear infinite; }
.packet-safe { animation: travel-safe 4.4s linear infinite; }
.blocked-flash { animation: blocked-flash 4.4s linear infinite; }
.threat-path { stroke-dasharray: 6 6; stroke-dashoffset: 240; animation: dash-fade 4.4s linear infinite; }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .band-grid { grid-template-columns: 1fr; }
  .service-body { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .service-group-head { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 40px; }
  section { padding: 52px 0; }
}

/* mobile nav panel */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 68px 0 0 0;
  background: var(--bg);
  z-index: 49;
  padding: 20px 24px;
  overflow-y: auto;
}
.mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.mobile-nav a {
  display: block;
  padding: 14px 4px;
  font-size: 17px;
  border-bottom: 1px solid var(--border-soft);
}
.mobile-nav .btn { margin-top: 20px; }