/* =========================================================
   TOKENS
   ========================================================= */
:root{
  --color-bg: #FAFAF7;
  --color-ink: #16181D;
  --color-slate: #6B7280;
  --color-line: #E4E4E0;
  --color-signal: #2D5DF0;
  --color-signal-dim: #2D5DF014;
  --color-ok: #1E8E5A;

  --font-display: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --wrap: 1080px;
  --radius: 3px;
}

@media (prefers-color-scheme: dark){
  /* Intentionally not auto-switching -- brand relies on the paper/ink contrast.
     Respecting reduced motion below instead. */
}

*{ 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(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.mono{ font-family: var(--font-mono); }

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

/* faint blueprint grid in the background, signature texture */
.grid-overlay{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  mask-image: linear-gradient(to bottom, black 0%, transparent 60%);
}

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

/* =========================================================
   HEADER
   ========================================================= */
.site-header{
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-line);
}

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 18px;
  padding-bottom: 18px;
  flex-wrap: wrap;
}

.logo{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
}
.logo-mark{
  color: var(--color-signal);
  flex-shrink: 0;
}

.statusline{
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-slate);
}
.statusline .dot{
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-ok);
  box-shadow: 0 0 0 0 rgba(30,142,90,0.5);
  animation: pulse 2.4s infinite;
}
@keyframes pulse{
  0%   { box-shadow: 0 0 0 0 rgba(30,142,90,0.45); }
  70%  { box-shadow: 0 0 0 6px rgba(30,142,90,0); }
  100% { box-shadow: 0 0 0 0 rgba(30,142,90,0); }
}

.header-actions{
  display: flex;
  align-items: center;
  gap: 18px;
}

.lang-switch{
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.lang-divider{ color: var(--color-line); }
.lang-btn{
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 2px;
  color: var(--color-slate);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
}
.lang-btn.is-active{
  color: var(--color-ink);
  border-bottom-color: var(--color-signal);
}
.lang-btn:hover{ color: var(--color-ink); }
.lang-btn:focus-visible, .btn:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, button:focus-visible{
  outline: 2px solid var(--color-signal);
  outline-offset: 2px;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn-primary{
  background: var(--color-ink);
  color: var(--color-bg);
}
.btn-primary:hover{
  background: var(--color-signal);
  transform: translateY(-1px);
}
.btn-ghost{
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line);
}
.btn-ghost:hover{
  border-color: var(--color-ink);
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position: relative;
  z-index: 1;
  padding-top: 100px;
  padding-bottom: 64px;
}
.eyebrow{
  color: var(--color-signal);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
}
.hero-title{
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 24px;
  max-width: 18ch;
}
.hero-sub{
  font-size: 1.15rem;
  color: var(--color-slate);
  max-width: 56ch;
  margin: 0 0 32px;
}
.hero-actions{
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* =========================================================
   TERMINAL STRIP -- signature element
   ========================================================= */
.terminal-strip{
  position: relative;
  z-index: 1;
  padding-bottom: 80px;
}
.terminal{
  background: var(--color-ink);
  color: #E9EAEC;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 18px 40px -20px rgba(22,24,29,0.35);
}
.terminal-bar{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: #1F2128;
  border-bottom: 1px solid #2B2E37;
}
.terminal-dot{
  width: 10px; height: 10px; border-radius: 50%;
  display: inline-block;
}
.terminal-dot.r{ background: #FF5F57; }
.terminal-dot.y{ background: #FEBC2E; }
.terminal-dot.g{ background: #28C840; }
.terminal-title{
  margin-left: 8px;
  font-size: 0.78rem;
  color: #8B8E98;
}
.terminal-body{
  padding: 22px 24px 26px;
  font-size: 0.92rem;
  line-height: 1.9;
}
.terminal-body p{ margin: 0; }
.t-prompt{ color: var(--color-signal); margin-right: 10px; }
.t-ok{ color: #6BD08A; }

/* =========================================================
   SECTION TITLES
   ========================================================= */
.section-title{
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0.5em 0 0 0;
}

/* =========================================================
   SERVICES
   ========================================================= */
.services{
  position: relative;
  z-index: 1;
  padding: 40px 28px 90px;
}
.service-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
}
.service-card{
  background: var(--color-bg);
  padding: 32px 28px;
}
.service-cmd{
  color: var(--color-signal);
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 16px;
}
.service-card h3{
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 12px;
}
.service-card p{
  color: var(--color-slate);
  font-size: 0.95rem;
  margin: 0;
}

/* =========================================================
   ABOUT
   ========================================================= */
.about{
  position: relative;
  z-index: 1;
  padding: 40px 28px 90px;
  border-top: 1px solid var(--color-line);
}
.about-grid{
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  padding-top: 40px;
}
.about-text p{
  color: var(--color-slate);
  font-size: 1.02rem;
  max-width: 56ch;
}
.about-text .eyebrow{
  color: var(--color-signal);
  font-size: 0.85rem;
}
.about-meta dl{ margin: 0; }
.meta-row{
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.86rem;
}
.meta-row dt{ color: var(--color-slate); }
.meta-row dd{ margin: 0; text-align: right; font-weight: 500; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact{
  position: relative;
  z-index: 1;
  padding: 40px 28px 110px;
  border-top: 1px solid var(--color-line);
}
.contact-sub{
  color: var(--color-slate);
  font-size: 1.05rem;
  max-width: 50ch;
  margin: -16px 0 36px;
}
.contact-form{
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row{
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-row label{
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
}
.form-row input,
.form-row textarea{
  font-family: var(--font-display);
  font-size: 0.96rem;
  padding: 11px 13px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus{
  outline: none;
  border-color: var(--color-signal);
  box-shadow: 0 0 0 3px var(--color-signal-dim);
}
.contact-form .btn{
  align-self: flex-start;
  margin-top: 6px;
}
.form-note{
  color: var(--color-slate);
  font-size: 0.78rem;
  margin: 4px 0 0;
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{
  position: relative;
  z-index: 1;
  padding: 28px 28px 40px;
  border-top: 1px solid var(--color-line);
  color: var(--color-slate);
  font-size: 0.8rem;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 860px){
  .service-grid{ grid-template-columns: 1fr; }
  .about-grid{ grid-template-columns: 1fr; gap: 32px; }
  .about-meta dd{ text-align: right; }
  .statusline{ order: 3; width: 100%; }
}

@media (max-width: 560px){
  .hero{ padding-top: 64px; }
  .hero-title{ max-width: 100%; }
  .header-inner{ gap: 14px; }
  .header-actions{ gap: 12px; flex-wrap: wrap; }
}