/* ─────────────────────────────────────────────
   DESIGN SYSTEM
   Typographic Brutalism + Network Topology DNA
   Palette: Near-black · Warm white · Signal orange
───────────────────────────────────────────── */

/* ── TOKENS ── */
:root {
  --bg:        #080808;
  --bg-1:      #0f0f0f;
  --bg-2:      #161616;
  --fg:        #F0EDE8;
  --fg-dim:    rgba(240, 237, 232, 0.42);
  --fg-muted:  rgba(240, 237, 232, 0.10);
  --accent:    #FF5F00;
  --accent-lo: rgba(255, 95, 0, 0.12);
  --border:    rgba(240, 237, 232, 0.08);
  --t-green:   #4ADE80;
  --t-yellow:  #FCD34D;
  --t-red:     #F87171;
  --sans:      'Space Grotesk', system-ui, sans-serif;
  --mono:      'JetBrains Mono', 'Courier New', monospace;
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── UTILITIES ── */
.mono    { font-family: var(--mono); }
.accent  { color: var(--accent); }

/* ─────────────────────────────────────────────
   NAVIGATION
───────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 3rem;
  transition: background 0.4s var(--ease-out), border-color 0.4s;
  border-bottom: 1px solid transparent;
}

#nav.scrolled {
  background: rgba(8, 8, 8, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--border);
}

.nav-logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  transition: color 0.2s;
}
.nav-logo:hover { color: var(--accent); }

.nav-layer {
  font-size: 0.7rem;
  color: var(--fg-dim);
  letter-spacing: 0.06em;
  transition: all 0.4s var(--ease-out);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease-out);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--fg);
  outline: none;
}
.nav-links a:hover::after { width: 100%; }

/* ─────────────────────────────────────────────
   HERO
───────────────────────────────────────────── */
#hero {
  position: relative;
  height: 100dvh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  padding: 0 3rem 6rem;
  overflow: hidden;
}

#network-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-available {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  margin-bottom: 0.75rem;
}

.dot-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--t-green);
  flex-shrink: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5); }
  50% { opacity: 0.6; box-shadow: 0 0 0 6px rgba(74, 222, 128, 0); }
}

.hero-name {
  font-size: clamp(4.5rem, 18vw, 22rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 0.88;
  margin-bottom: 1.5rem;
  background: linear-gradient(170deg, #FFFFFF 40%, rgba(240, 237, 232, 0.5) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  user-select: none;
}

.hero-tagline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: clamp(0.7rem, 1.4vw, 1rem);
  color: var(--fg-dim);
  margin-bottom: 1.5rem;
}

.tagline-sep {
  color: var(--accent);
  font-size: 0.8em;
}

.hero-tagline .accent {
  color: var(--accent);
}

.hero-terminal {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: clamp(0.75rem, 1.2vw, 0.9rem);
  color: var(--fg-dim);
  margin-bottom: 2.5rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--border);
  background: rgba(15, 15, 15, 0.6);
}

.term-prompt { color: var(--accent); }
.term-cmd { color: var(--fg); }

.term-cursor {
  color: var(--accent);
  animation: blink-cursor 1s step-end infinite;
  font-weight: 700;
}

@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.stat-num {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-label {
  font-size: 0.65rem;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
}

.stat-sep {
  width: 1px;
  height: 2.5rem;
  background: var(--border);
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  right: 3rem;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  writing-mode: vertical-lr;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--fg-dim), transparent);
  animation: scroll-line-anim 2s ease-in-out infinite;
}

@keyframes scroll-line-anim {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  30%  { opacity: 1; }
  100% { transform: scaleY(1); transform-origin: top; opacity: 0; }
}

/* ─────────────────────────────────────────────
   SHARED SECTION LAYOUT
───────────────────────────────────────────── */
section {
  padding: 7rem 3rem;
}

section + section {
  border-top: 1px solid var(--border);
}

.section-meta {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 4rem;
}

.section-num {
  font-size: 0.7rem;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
}

.section-meta h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* ─────────────────────────────────────────────
   EXPERTISE
───────────────────────────────────────────── */
#expertise { background: var(--bg); }

.expertise-layout {
  display: grid;
  grid-template-columns: 60fr 40fr;
  gap: 5rem;
  align-items: start;
}

.big-statement {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 2rem;
}

.big-statement em {
  font-style: normal;
  color: var(--accent);
}

.body-text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--fg-dim);
  max-width: 60ch;
}

.body-text + .body-text { margin-top: 1rem; }

.expertise-stacks {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stack-block { display: flex; flex-direction: column; gap: 0.75rem; }

.stack-label {
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg-dim);
  border: 1px solid var(--border);
  padding: 0.2rem 0.6rem;
  transition: all 0.2s;
  letter-spacing: 0.02em;
}

.tag:hover {
  color: var(--fg);
  border-color: rgba(240, 237, 232, 0.3);
  background: var(--accent-lo);
}

/* ─────────────────────────────────────────────
   SERVICES
───────────────────────────────────────────── */
#services { background: var(--bg-1); }

.services-list { display: flex; flex-direction: column; }

.service-item {
  display: grid;
  grid-template-columns: 4rem 1fr auto;
  align-items: start;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
  cursor: default;
  transition: background 0.3s;
}

.service-item:first-child { border-top: 1px solid var(--border); }

.service-item:hover { background: var(--bg-2); }
.service-item:hover .service-num { color: var(--accent); }
.service-item:hover .service-arrow { transform: translate(4px, -4px); color: var(--accent); }

.service-num {
  font-size: 0.75rem;
  color: var(--fg-dim);
  padding-top: 0.2rem;
  letter-spacing: 0.05em;
  transition: color 0.3s;
}

.service-title {
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--fg-dim);
  line-height: 1.7;
  max-width: 55ch;
  margin-bottom: 1rem;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-mono {
  font-size: 0.65rem;
  color: var(--fg-dim);
  letter-spacing: 0.06em;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--border);
}

.service-arrow {
  font-size: 1.5rem;
  color: var(--fg-muted);
  padding-top: 0.3rem;
  transition: transform 0.3s var(--ease-out), color 0.3s;
}

/* ─────────────────────────────────────────────
   NMS PROJECT
───────────────────────────────────────────── */
#nms { background: var(--bg); }

.nms-layout {
  display: grid;
  grid-template-columns: 42fr 58fr;
  gap: 4rem;
  align-items: center;
}

.project-url {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.project-title {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.nms-features {
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.nms-features li {
  font-size: 0.9rem;
  color: var(--fg-dim);
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  line-height: 1.5;
}

.nms-features li .accent { flex-shrink: 0; }

.nms-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #080808;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.7rem 1.4rem;
  transition: all 0.25s var(--ease-out);
}

.btn-primary:hover {
  background: var(--fg);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--accent);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0.7rem 1.4rem;
  transition: all 0.25s var(--ease-out);
}

.btn-ghost:hover {
  border-color: var(--fg-dim);
  color: var(--fg);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--border);
}

/* ── Terminal Window ── */
.term-window {
  border: 1px solid var(--border);
  background: #0d0d0d;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.6);
}

.term-chrome {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  background: #161616;
  border-bottom: 1px solid var(--border);
}

.t-btn {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.t-red    { background: #FF5F57; }
.t-yellow { background: #FFBD2E; }
.t-green  { background: #28C840; }

.term-title {
  font-size: 0.65rem;
  color: var(--fg-dim);
  margin-left: auto;
  margin-right: auto;
  letter-spacing: 0.04em;
}

.term-body {
  padding: 1.25rem 1.5rem;
  font-size: 0.75rem;
  line-height: 1.9;
  min-height: 340px;
  overflow: hidden;
}

.t-line {
  display: block;
  white-space: pre-wrap;
  color: var(--fg-dim);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s, transform 0.3s;
}

.t-line.show {
  opacity: 1;
  transform: translateY(0);
}

.t-line-green { color: var(--t-green) !important; }
.t-line-yellow { color: var(--t-yellow) !important; }
.t-line-dim { color: rgba(240, 237, 232, 0.25) !important; }
.t-line-accent { color: var(--accent) !important; }

/* ─────────────────────────────────────────────
   CONTACT
───────────────────────────────────────────── */
#contact {
  background: var(--bg-1);
  padding-bottom: 0;
}

.contact-wrapper {
  padding-bottom: 4rem;
}

.contact-intro {
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  color: var(--fg-dim);
  max-width: 50ch;
  line-height: 1.6;
  margin-bottom: 3rem;
  font-weight: 400;
}

.contact-links {
  display: flex;
  flex-direction: column;
}

.contact-link {
  display: grid;
  grid-template-columns: 5rem 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.25s;
}

.contact-link:first-child { border-top: 1px solid var(--border); }

.contact-link:hover { background: var(--bg-2); }
.contact-link:hover .link-arrow { transform: translate(4px, -4px); color: var(--accent); }
.contact-link:hover .link-value { color: var(--fg); }

.link-label {
  font-size: 0.65rem;
  color: var(--fg-dim);
  letter-spacing: 0.1em;
}

.link-value {
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: rgba(240, 237, 232, 0.75);
  transition: color 0.25s;
}

.link-arrow {
  font-size: 1.5rem;
  color: var(--fg-muted);
  transition: transform 0.3s var(--ease-out), color 0.3s;
}

/* ── Footer ── */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.65rem;
  color: var(--fg-dim);
  letter-spacing: 0.05em;
}

/* ─────────────────────────────────────────────
   FOCUS STYLES (Accessibility)
───────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ─────────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────────── */
@media (max-width: 900px) {
  #nav { padding: 1rem 1.5rem; }
  .nav-layer { display: none; }
  .nav-links { gap: 1.25rem; }

  section { padding: 5rem 1.5rem; }
  #hero { padding: 0 1.5rem 5rem; }

  .expertise-layout { grid-template-columns: 1fr; gap: 3rem; }
  .nms-layout { grid-template-columns: 1fr; gap: 3rem; }

  .service-item { grid-template-columns: 3rem 1fr; }
  .service-arrow { display: none; }

  .contact-link { grid-template-columns: 4rem 1fr auto; gap: 1rem; }
  .link-value { font-size: 1rem; }

  .site-footer { flex-direction: column; gap: 0.5rem; text-align: center; }
  .scroll-hint { display: none; }

  .stat-sep { height: 1.5rem; }
}

@media (max-width: 600px) {
  .hero-name { font-size: clamp(4rem, 22vw, 8rem); }
  .hero-tagline { flex-direction: column; gap: 0.3rem; align-items: flex-start; }
  .tagline-sep { display: none; }
  .nms-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { justify-content: center; }
  .section-meta { flex-direction: column; gap: 0.3rem; }
}

/* ─────────────────────────────────────────────
   REDUCED MOTION
───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}