/* ============================================================
   STACKFORGE — .NET / C# Software Engineering
   Vanilla CSS (works alongside Tailwind CDN)
   ============================================================ */

:root {
  --bg-base: #030303;
  --bg-surface: #0A0A0A;
  --bg-surface-hover: #121212;
  --border-default: #1A1A1A;
  --border-focus: #0088FF;
  --accent-primary: #CCFF00;
  --accent-primary-hover: #B3E600;
  --accent-secondary: #0088FF;
  --accent-secondary-hover: #0070CC;
  --text-primary: #FFFFFF;
  --text-muted: #8A8A8E;
  --text-inverse: #000000;

  --font-heading: 'Outfit', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background grid */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border-default) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-default) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  opacity: 0.4;
}

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; letter-spacing: -0.02em; color: var(--text-primary); }
h1 { font-weight: 800; font-size: clamp(2.75rem, 8vw, 5.25rem); letter-spacing: -0.04em; line-height: 1.02; }
h2 { font-size: clamp(2rem, 5vw, 3.25rem); line-height: 1.1; }
h3 { font-size: 1.5rem; line-height: 1.25; }
p { color: var(--text-muted); }
a { color: inherit; text-decoration: none; }

.mono { font-family: var(--font-mono); }
.overline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-secondary);
}

/* Container */
.container-x {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  background: rgba(3, 3, 3, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-default);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.brand-dot { color: var(--accent-secondary); font-size: 1.4rem; line-height: 1; }
.nav-links { display: none; gap: 2.5rem; }
@media (min-width: 860px) { .nav-links { display: flex; } }
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  transition: color 0.2s ease;
  position: relative;
  padding: 8px 0;
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  background: var(--accent-primary);
}

/* Mobile menu toggle */
.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  border: 1px solid var(--border-default);
  background: transparent;
  cursor: pointer;
}
.menu-toggle span {
  display: block; height: 2px; width: 18px; margin: 0 auto;
  background: var(--text-primary); transition: transform 0.3s ease;
}
@media (min-width: 860px) { .menu-toggle { display: none; } }
.mobile-menu {
  display: none;
  border-top: 1px solid var(--border-default);
  background: var(--bg-base);
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 18px 1.5rem;
  border-bottom: 1px solid var(--border-default);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}
.mobile-menu a:hover, .mobile-menu a.active { color: var(--accent-primary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  background: transparent;
  color: var(--text-primary);
}
.btn-primary {
  background: var(--accent-primary);
  color: var(--text-inverse);
  border-color: var(--accent-primary);
}
.btn-primary:hover { background: var(--accent-primary-hover); border-color: var(--accent-primary-hover); transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--accent-secondary); }
.btn-outline {
  border-color: var(--border-default);
  color: var(--text-primary);
}
.btn-outline:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
.btn-ghost {
  color: var(--text-muted);
}
.btn-ghost:hover { color: var(--accent-primary); }
.btn .arrow { transition: transform 0.25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* Section */
.section { padding: clamp(72px, 12vw, 144px) 0; position: relative; }
.section-tight { padding: clamp(56px, 9vw, 96px) 0; }

/* Hero */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 120px;
  padding-bottom: 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url('https://static.prod-images.emergentagent.com/jobs/971520cf-b2e9-430b-8524-20432cae02ae/images/f738588ff31b8558a2247a0ac9929a269fab62b417b132ba26f9c71796866e82.png');
  background-size: cover;
  background-position: center;
  opacity: 0.55;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(3,3,3,0.4) 0%, rgba(3,3,3,0.85) 60%, rgba(3,3,3,1) 100%);
}
.hero-inner { position: relative; z-index: 2; }
.hero h1 span.accent { color: var(--accent-primary); }
.hero p.lead {
  max-width: 620px;
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-top: 1.75rem;
}
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 2.5rem;
  margin-top: 3.5rem; padding-top: 2rem;
  border-top: 1px solid var(--border-default);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}
.hero-meta b { color: var(--accent-primary); font-weight: 700; }

.cta-row { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.5rem; }

/* Code panel */
.code-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-muted);
}
.code-panel-head {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-default);
  background: #0c0c0c;
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.18em;
}
.code-panel-head .dot { width: 10px; height: 10px; display: inline-block; border-radius: 50%; }
.code-panel-head .r { background: #FF4545; }
.code-panel-head .y { background: #FFC700; }
.code-panel-head .g { background: var(--accent-primary); }
.code-panel-body { padding: 20px 22px; white-space: pre; overflow-x: auto; }
.code-k { color: #FF79C6; }
.code-t { color: #8BE9FD; }
.code-s { color: var(--accent-primary); }
.code-c { color: #6B7280; font-style: italic; }
.code-n { color: #F8F8F2; }

/* Bento grid */
.bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0;
  border: 1px solid var(--border-default);
  border-bottom: none;
  border-right: none;
}
.bento-card {
  grid-column: span 12;
  padding: 40px;
  border-right: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-surface);
  transition: background 0.3s ease, transform 0.3s ease;
  position: relative;
  overflow: hidden;
  min-height: 260px;
  display: flex; flex-direction: column; justify-content: space-between;
}
.bento-card:hover { background: var(--bg-surface-hover); }
.bento-card .index {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--accent-secondary); text-transform: uppercase; letter-spacing: 0.2em;
}
.bento-card h3 { margin-top: 16px; font-size: 1.6rem; }
.bento-card p { margin-top: 12px; font-size: 0.95rem; }
.bento-card .tags { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: var(--font-mono); font-size: 0.7rem;
  padding: 4px 10px; border: 1px solid var(--border-default);
  color: var(--text-muted); letter-spacing: 0.08em;
}
.bento-card:hover .tag { border-color: var(--accent-primary); color: var(--accent-primary); }
@media (min-width: 900px) {
  .bento-card.wide { grid-column: span 8; }
  .bento-card.narrow { grid-column: span 4; }
  .bento-card.half { grid-column: span 6; }
  .bento-card.third { grid-column: span 4; }
}

.bento-card.image-card {
  background-size: cover;
  background-position: center;
  min-height: 320px;
  justify-content: flex-end;
}
.bento-card.image-card::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(3,3,3,0.95) 0%, rgba(3,3,3,0.5) 50%, rgba(3,3,3,0.2) 100%);
  z-index: 0;
}
.bento-card.image-card > * { position: relative; z-index: 1; }

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--border-default);
  border-right: none;
  border-bottom: none;
}
@media (min-width: 720px) { .stats-row { grid-template-columns: repeat(4, 1fr); } }
.stat-cell {
  padding: 32px;
  border-right: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-surface);
}
.stat-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 2.75rem);
  color: var(--accent-primary);
  letter-spacing: -0.03em;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Tech marquee */
.marquee-wrap { overflow: hidden; border-top: 1px solid var(--border-default); border-bottom: 1px solid var(--border-default); padding: 28px 0; background: var(--bg-surface); }
.marquee {
  display: flex;
  gap: 64px;
  animation: scroll 38s linear infinite;
  width: max-content;
}
.marquee span {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--text-muted);
  white-space: nowrap;
  letter-spacing: -0.02em;
}
.marquee span.accent { color: var(--accent-primary); }
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* Contact form */
.form-grid { display: grid; gap: 28px; }
.form-field { display: flex; flex-direction: column; }
.form-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.form-input, .form-textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-default);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 12px 2px;
  outline: none;
  transition: border-color 0.2s ease;
}
.form-input:focus, .form-textarea:focus { border-bottom-color: var(--accent-secondary); }
.form-textarea { min-height: 120px; resize: vertical; }
.form-input::placeholder, .form-textarea::placeholder { color: #3a3a3e; }

.success-box {
  display: none;
  border: 1px solid var(--accent-primary);
  padding: 48px;
  background: var(--bg-surface);
  font-family: var(--font-mono);
  color: var(--accent-primary);
}
.success-box .cursor::after {
  content: "▊";
  display: inline-block;
  margin-left: 6px;
  animation: blink 1s steps(2) infinite;
  color: var(--accent-primary);
}
@keyframes blink { 50% { opacity: 0; } }

/* Footer */
.footer {
  border-top: 1px solid var(--border-default);
  padding: 96px 0 48px;
  background: var(--bg-base);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--border-default);
}
@media (min-width: 820px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-bottom: 18px;
  font-weight: 500;
}
.footer-col a {
  display: block;
  padding: 6px 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--text-primary);
}
.footer-col a:hover { color: var(--accent-primary); }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
  padding-top: 40px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
  gap: 16px;
}
.logo-giant {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(4rem, 16vw, 11rem);
  letter-spacing: -0.05em;
  color: var(--bg-surface);
  line-height: 0.85;
  margin: 64px 0 0;
  text-align: left;
  user-select: none;
}
.logo-giant span { color: var(--accent-secondary); }

/* Divider label */
.section-label {
  display: flex; align-items: center; gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.2em;
  color: var(--accent-secondary);
  margin-bottom: 28px;
}
.section-label::before {
  content: ""; width: 32px; height: 1px; background: var(--accent-secondary);
}

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal.active { opacity: 1; transform: translateY(0); }

/* Ticker */
.ticker {
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-base);
  overflow: hidden;
  padding: 14px 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.ticker-track { display: flex; gap: 48px; animation: scroll 42s linear infinite; width: max-content; }
.ticker-track span { white-space: nowrap; }
.ticker-track i {
  display: inline-block; width: 6px; height: 6px; background: var(--accent-primary);
  margin: 0 24px; vertical-align: middle;
}

/* Two column */
.two-col { display: grid; grid-template-columns: 1fr; gap: 56px; align-items: start; }
@media (min-width: 920px) { .two-col { grid-template-columns: 1.05fr 0.95fr; gap: 80px; } }
.two-col.flip { direction: ltr; }
@media (min-width: 920px) { .two-col.flip > *:first-child { order: 2; } }

.img-frame {
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  overflow: hidden;
  position: relative;
}
.img-frame img { display: block; width: 100%; height: 100%; object-fit: cover; filter: grayscale(20%) contrast(1.05); }

/* Process steps */
.steps {
  display: grid; grid-template-columns: 1fr;
  border: 1px solid var(--border-default);
  border-bottom: none;
}
@media (min-width: 840px) { .steps { grid-template-columns: repeat(4, 1fr); } .steps > *:not(:last-child) { border-right: 1px solid var(--border-default); } }
.step {
  padding: 36px 32px;
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-surface);
}
.step .num {
  font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent-primary);
}
.step h3 { margin-top: 14px; font-size: 1.2rem; }
.step p { margin-top: 10px; font-size: 0.9rem; }

/* Feature list */
.feature-list { list-style: none; padding: 0; margin: 0; }
.feature-list li {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-default);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
}
.feature-list li::before {
  content: "+";
  color: var(--accent-primary);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.1;
}

/* Contact info block */
.info-grid { display: grid; grid-template-columns: 1fr; gap: 0; border: 1px solid var(--border-default); border-right: none; border-bottom: none; }
@media (min-width: 760px) { .info-grid { grid-template-columns: repeat(3, 1fr); } }
.info-cell { padding: 32px; border-right: 1px solid var(--border-default); border-bottom: 1px solid var(--border-default); background: var(--bg-surface); }
.info-cell .label { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--accent-secondary); }
.info-cell .value { margin-top: 12px; font-family: var(--font-mono); font-size: 1rem; color: var(--text-primary); }

/* Page header (non-home pages) */
.page-header {
  padding: 160px 0 72px;
  border-bottom: 1px solid var(--border-default);
  position: relative;
  overflow: hidden;
}
.page-header h1 { font-size: clamp(2.5rem, 7vw, 4.5rem); }
.page-header .overline { display: inline-block; margin-bottom: 24px; }
.page-header p { max-width: 620px; margin-top: 22px; font-size: 1.05rem; }

/* Utils */
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent-primary); }
.text-blue { color: var(--accent-secondary); }
.divider-line { height: 1px; background: var(--border-default); margin: 0; }