/* ── Design tokens — Terminal Glow (dark) ───────────────────────────────────── */
:root {
  /* Colors */
  --color-surface:                   #0d0d0b;
  --color-surface-dim:               #0a0a09;
  --color-surface-bright:            #161710;
  --color-surface-container-lowest:  #080808;
  --color-surface-container-low:     #111208;
  --color-surface-container:         #161710;
  --color-surface-container-high:    #1e2112;
  --color-surface-container-highest: #252a15;
  --color-on-surface:                #e8ead4;
  --color-on-surface-variant:        #9ea88a;
  --color-inverse-surface:           #e8ead4;
  --color-inverse-on-surface:        #0d0d0b;
  --color-outline:                   #7a8a5a;
  --color-outline-variant:           #2e3318;
  --color-surface-tint:              #ccff00;
  --color-primary:                   #ccff00;
  --color-on-primary:                #0d0d0b;
  --color-primary-container:         #3a5000;
  --color-on-primary-container:      #ccff00;
  --color-inverse-primary:           #506600;
  --color-secondary:                 #9ea88a;
  --color-on-secondary:              #0d0d0b;
  --color-secondary-container:       #1e2112;
  --color-on-secondary-container:    #9ea88a;
  --color-tertiary:                  #7a9aaa;
  --color-tertiary-container:        #0f2030;
  --color-error:                     #ff6b6b;
  --color-error-container:           #3a0f0f;
  --color-on-error-container:        #ffb4b4;
  --color-background:                #0d0d0b;
  --color-on-background:             #e8ead4;
  --color-surface-variant:           #252a15;
  --color-lime:                      #ccff00;

  /* Spacing */
  --space-xs:               4px;
  --space-sm:               12px;
  --space-base:             8px;
  --space-md:               24px;
  --space-lg:               48px;
  --space-xl:               80px;
  --space-2xl:              120px;
  --container-margin:       64px;
  --gutter:                 24px;

  /* Section rhythm: clamps from 56px (mobile) to 120px (desktop) */
  --section-gap: clamp(56px, 8vw, 120px);

  /* Typography scale */
  --font-inter: 'Inter', system-ui, sans-serif;
  --font-mono:  'Space Grotesk', 'Courier New', monospace;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--color-background);
  color: var(--color-on-surface);
  font-family: var(--font-inter);
  font-size: 16px;
  line-height: 1.5;
  position: relative;
  overflow-x: hidden;
}

/* Grain overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23g)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
  z-index: 9999;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }
textarea { resize: vertical; }

/* ── Typography classes ─────────────────────────────────────────────────────── */
.display-2xl {
  font-family: var(--font-inter);
  font-size: clamp(48px, 8vw, 120px);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.display-xl {
  font-family: var(--font-inter);
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.headline-lg {
  font-family: var(--font-inter);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.headline-md {
  font-family: var(--font-inter);
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.body-lg {
  font-family: var(--font-inter);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.55;
}

.body-md {
  font-family: var(--font-inter);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
}

.label-mono {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.43;
  letter-spacing: 0.05em;
}

/* ── Layout ─────────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--container-margin);
}

@media (max-width: 1024px) { .container { padding-inline: 40px; } }
@media (max-width: 640px)  { .container { padding-inline: var(--space-md); } }

.section-xl { padding-block: var(--section-gap); }

/* ── Colors / Accent ────────────────────────────────────────────────────────── */
.accent { color: var(--color-lime); }

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-inter);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  padding: 14px 28px;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  white-space: nowrap;
}

/* Primary: lime pill */
.btn-primary {
  background: var(--color-lime);
  color: var(--color-on-primary);
  border-radius: 9999px;
  border: none;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 0 #4a6600; }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-primary:focus-visible { outline: 3px solid var(--color-lime); outline-offset: 3px; }

/* Secondary: sharp rectangle, black border */
.btn-secondary {
  background: transparent;
  color: var(--color-on-surface);
  border-radius: 0;
  border: 2px solid var(--color-on-surface);
}
.btn-secondary:hover { background: var(--color-surface-container-high); }
.btn-secondary:focus-visible { outline: 3px solid var(--color-lime); outline-offset: 3px; }

/* Ghost: mono underline */
.btn-ghost {
  background: transparent;
  color: var(--color-on-surface);
  border-radius: 0;
  border: none;
  padding-inline: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  position: relative;
}
.btn-ghost::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.btn-ghost:hover::after { transform: scaleX(1); }
.btn-ghost:focus-visible { outline: 3px solid var(--color-lime); outline-offset: 4px; }

/* ── Header ─────────────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-outline-variant);
  /* slight translucency when scrolled via JS class */
}

.site-header.scrolled {
  background: rgba(13, 13, 11, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo */
.logo { display: flex; align-items: center; }
.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  width: 36px;
  height: 36px;
  background: #0f1208;
  color: var(--color-lime);
  font-family: var(--font-inter);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -0.02em;
  border: 2px solid var(--color-lime);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.logo-text {
  position: relative;
  z-index: 1;
}
#logo-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}
.logo:hover .logo-mark {
  background: var(--color-lime);
  color: #0d0d0b;
}
.logo:focus-visible { outline: 3px solid var(--color-lime); outline-offset: 3px; }

/* Desktop nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-list {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-family: var(--font-inter);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-on-surface);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 4px; height: 4px;
  border-radius: 9999px;
  background: var(--color-lime);
  opacity: 0;
  transition: opacity 0.15s;
}
.nav-link:hover::after,
.nav-link[aria-current="page"]::after { opacity: 1; }
.nav-link:focus-visible { outline: 3px solid var(--color-lime); outline-offset: 4px; }

.nav-cta { padding: 10px 20px; font-size: 14px; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  padding: 4px;
}
.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-on-surface);
  transition: transform 0.2s;
}
.hamburger { position: relative; }
.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}
.hamburger::before { top: -6px; }
.hamburger::after  { top:  6px; }

.nav-toggle[aria-expanded="true"] .hamburger { background: transparent; }
.nav-toggle[aria-expanded="true"] .hamburger::before { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle[aria-expanded="true"] .hamburger::after  { transform: rotate(-45deg) translate(4px, -4px); }

/* Mobile nav drawer */
.mobile-nav {
  border-top: 1px solid var(--color-outline-variant);
  background: var(--color-background);
}
.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: var(--space-md) var(--space-md) var(--space-lg);
}
.mobile-nav-list li { padding-block: 12px; border-bottom: 1px solid var(--color-outline-variant); }
.mobile-nav-list li:last-child { border-bottom: none; margin-top: var(--space-md); }
.mobile-nav-list .nav-link { font-size: 18px; }
.mobile-nav-list .btn-primary { width: 100%; }

@media (max-width: 768px) {
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
}

/* ── Hero ────────────────────────────────────────────────────────────────────── */
.hero {
  padding-top: clamp(64px, 8vw, 120px);
  position: relative;
  overflow: hidden;
}
.hero > .container { position: relative; z-index: 1; }

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.eyebrow {
  color: var(--color-outline);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  display: block;
}

.hero-headline {
  max-width: 14ch;
  margin-bottom: var(--space-lg);
}

.hero-sub {
  max-width: 52ch;
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-lg);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.br-md { display: none; }
@media (min-width: 768px) { .br-md { display: inline; } }

/* ── Services ────────────────────────────────────────────────────────────────── */
.services-headline {
  margin-bottom: clamp(40px, 5vw, 80px);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--color-on-surface);
}

.service-card {
  padding: clamp(24px, 3vw, 48px);
  border: 1px solid var(--color-on-surface);
  margin: -1px 0 0 -1px; /* overlap to avoid double borders */
}

.service-num {
  color: var(--color-outline);
  display: block;
  margin-bottom: var(--space-md);
}

.service-card h3 { margin-bottom: 12px; }

.service-card p { color: var(--color-on-surface-variant); }

@media (max-width: 640px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* ── About ────────────────────────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.about-p2 {
  color: var(--color-on-surface-variant);
  margin-top: var(--space-md);
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.chip {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 6px 14px;
  border-radius: 9999px;
  background: var(--color-secondary-container);
  color: var(--color-on-secondary-container);
  border: 1px solid var(--color-outline-variant);
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
}

/* ── Contact ──────────────────────────────────────────────────────────────────── */
.contact-sub {
  max-width: 48ch;
  color: var(--color-on-surface-variant);
  margin-top: var(--space-md);
  margin-bottom: clamp(40px, 5vw, 64px);
}

.contact-grid {
  max-width: 680px;
}

.contact-form { display: flex; flex-direction: column; gap: var(--space-md); }

/* Honeypot — totally hidden */
.hp-field {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.form-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 500px) { .form-row-2col { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: var(--space-xs); }

.form-label {
  color: var(--color-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-size: 12px;
  transition: color 0.15s;
}

.form-group:focus-within .form-label { color: var(--color-lime); }

.required { color: var(--color-error); }

.optional { color: var(--color-outline); font-size: 12px; }

.form-input {
  font-family: var(--font-inter);
  font-size: 16px;
  line-height: 1.5;
  padding: 12px 14px;
  background: var(--color-surface-container-lowest);
  color: var(--color-on-surface);
  border: 1px solid var(--color-outline-variant);
  border-radius: 0;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}

.form-input:focus {
  border-color: var(--color-lime);
  border-width: 2px;
  box-shadow: inset 0 0 0 0 transparent;
}

.form-input:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

.form-textarea { min-height: 160px; }

.turnstile-mount { min-height: 70px; }

.form-feedback {
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 12px 16px;
  border: 1px solid;
}

.form-feedback.success {
  background: #0a2010;
  border-color: #2e7d32;
  color: #88d88a;
}

.form-feedback.error {
  background: var(--color-error-container);
  border-color: var(--color-error);
  color: var(--color-on-error-container);
}

.btn-submit { align-self: flex-start; }

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ── Footer ───────────────────────────────────────────────────────────────────── */
.site-footer {
  border-top: 2px solid var(--color-on-surface);
  padding-block: var(--space-xl);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer-wordmark {
  font-family: var(--font-inter);
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 8px;
}

.footer-address {
  color: var(--color-outline);
  margin-top: 8px;
}

.footer-copy { color: var(--color-outline); }

/* ── Focus-visible global rule ─────────────────────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--color-lime);
  outline-offset: 3px;
}

/* ── Selection ─────────────────────────────────────────────────────────────── */
::selection {
  background: var(--color-lime);
  color: var(--color-on-surface);
}