:root {
  --bg:          #EDE9DC;
  --surface:     #F7F4EC;
  --black:       #111111;
  --white:       #FEFEFE;
  --lime:        #CBFF4D;
  --lime-muted:  #B0E000;
  --muted:       #6B6555;
  --border-w:    2px;
  --shadow:      4px 4px 0 var(--black);
  --shadow-lg:   6px 6px 0 var(--black);

  --font:        'Space Grotesk', system-ui, sans-serif;
  --mono:        'JetBrains Mono', 'Fira Code', monospace;

  --max:         1080px;
  --max-prose:   660px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--black);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── HERO LOGO ─── */
.hero-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--black);
  border: var(--border-w) solid var(--black);
  box-shadow: var(--shadow);
  padding: 0.45rem 1rem 0.45rem 0.6rem;
  margin-bottom: 2rem;
}
.hero-logo-img {
  width: 28px;
  height: 28px;
}
.hero-logo-text {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--lime);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ─── HERO ─── */
.hero {
  padding: 7rem 1.5rem 5rem;
  text-align: center;
  background: var(--bg);
  border-bottom: var(--border-w) solid var(--black);
}

.hero-prose {
  max-width: var(--max-prose);
  margin: 0 auto;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}
.eyebrow::before,
.eyebrow::after {
  content: '';
  display: block;
  height: 1px;
  width: 2rem;
  background: var(--muted);
}

h1 {
  font-size: clamp(2.6rem, 6.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.1rem);
  color: var(--muted);
  line-height: 1.7;
  max-width: 52ch;
  margin: 0 auto 2.5rem;
}

.cta-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  background: var(--lime);
  color: var(--black);
  font-family: var(--font);
  font-weight: 700;
  font-size: 0.9rem;
  border: var(--border-w) solid var(--black);
  box-shadow: var(--shadow);
  transition: transform 0.1s, box-shadow 0.1s;
}
.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}
.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--black);
}

.btn-ghost {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  background: transparent;
  color: var(--black);
  font-family: var(--font);
  font-weight: 700;
  font-size: 0.9rem;
  border: var(--border-w) solid var(--black);
  box-shadow: var(--shadow);
  transition: transform 0.1s, box-shadow 0.1s, background 0.1s;
}
.btn-ghost:hover {
  background: var(--black);
  color: var(--white);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

/* ─── DEMO PANEL ─── */
.demo-section {
  background: var(--bg);
  padding: 4rem 1.5rem 5rem;
  border-bottom: var(--border-w) solid var(--black);
}

.demo-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

/* Editor */
.editor-window {
  background: var(--white);
  border: var(--border-w) solid var(--black);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: var(--black);
  border-bottom: var(--border-w) solid var(--black);
}
.wdot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
}
.wdot--r { background: #FF5F57; }
.wdot--a { background: #FEBC2E; }
.wdot--g { background: #28C840; }
.window-filename {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: #888;
  margin-left: 0.4rem;
}

.editor-body {
  display: grid;
  grid-template-columns: 2.25rem 1fr;
}
.cursor {
  display: inline;
  animation: cursor-blink 0.85s step-end infinite;
}
@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
.editor-gutter {
  background: #F0EDE4;
  border-right: 1px solid #D8D4C8;
  padding: 1.25rem 0;
  text-align: right;
}
.editor-gutter span {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  line-height: 1.85;
  color: #B0AA98;
  padding-right: 0.5rem;
  user-select: none;
}
.editor-code {
  padding: 1.25rem 1.25rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  line-height: 1.85;
  white-space: pre;
  overflow-x: auto;
  color: #2C2C2C;
}
.t-kw  { color: #1A7A3F; font-weight: 700; }
.t-str { color: #6B5A00; }
.t-cmt { color: #9A9585; font-style: italic; }
.t-var { color: #1A5FA0; }
.t-pmt { color: #2C2C2C; }
.t-del { color: #9A9585; }

/* Terminal */
.term-window {
  background: #0D0F0E;
  border: var(--border-w) solid var(--black);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: #080A09;
  border-bottom: 1px solid #1C2420;
}
.term-body {
  padding: 1.1rem 1.25rem 1.25rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.6;
}
.term-ascii {
  color: #CBFF4D;
  font-size: 0.6rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}
.term-run {
  border-left: 2px solid #7C3AED;
  padding-left: 0.85rem;
  margin-bottom: 0.9rem;
}
.term-run-head { margin-bottom: 0.25rem; }
.term-arrow  { color: #7B8A9A; margin-right: 0.3rem; }
.term-lbl    { color: #F3F4F6; font-weight: 700; margin-right: 0.35rem; }
.term-dot    { color: #4ADE80; margin-right: 0.25rem; }
.term-done   { color: #4ADE80; font-weight: 700; margin-right: 0.35rem; }
.term-time   { color: #6B7280; }
.term-rl     { color: #A78BFA; font-weight: 700; }
.term-resp   { color: #F3F4F6; }
.term-set    { color: #4ADE80; font-size: 0.67rem; margin-top: 0.15rem; }
.term-meta   { color: #7B8A9A; margin-top: 0.2rem; }
.term-foot   { color: #374151; margin-top: 0.5rem; }
.term-fkey   { color: #9CA3AF; }

/* ─── FEATURES ─── */
.features {
  background: var(--white);
  border-bottom: var(--border-w) solid var(--black);
  padding: 5rem 1.5rem;
}
.features-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.features-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 3rem;
}

.feature-row {
  border-top: var(--border-w) solid var(--black);
  padding: 2.5rem 0;
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 2rem;
  align-items: start;
}
.feature-row:last-child {
  border-bottom: var(--border-w) solid var(--black);
}

.feat-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--lime-muted);
  padding-top: 0.35rem;
  letter-spacing: 0.05em;
}

.feat-body {}
.feat-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 0.75rem;
  line-height: 1.1;
}
.feat-desc {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 58ch;
}
.feat-tag {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  background: var(--lime);
  color: var(--black);
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--black);
  font-weight: 700;
  letter-spacing: 0.06em;
}

/* ─── MGX FEATURE EXPLORER ─── */
.mgx-section {
  background: var(--bg);
  border-bottom: var(--border-w) solid var(--black);
  padding: 5rem 1.5rem;
}
.mgx-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.mgx-header {
  margin-bottom: 3rem;
}
.mgx-eyebrow {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.mgx-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  line-height: 1.05;
  margin-bottom: 0.75rem;
}
.mgx-sub {
  font-size: 1rem;
  color: var(--muted);
  max-width: 58ch;
  line-height: 1.65;
}
.feature-explorer {
  border: var(--border-w) solid var(--black);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.feature-tab-list {
  display: flex;
  flex-wrap: wrap;
  background: var(--surface);
  border-bottom: var(--border-w) solid var(--black);
}
.feature-tab {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1rem;
  background: transparent;
  border: none;
  border-right: 1px solid var(--black);
  color: var(--muted);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  transition: background 0.1s, color 0.1s;
  white-space: nowrap;
}
.feature-tab:hover { background: var(--lime); color: var(--black); }
.feature-tab.is-active { background: var(--black); color: var(--lime); }
.ftab-icon { font-family: var(--mono); font-size: 0.8rem; min-width: 1.25rem; }
.ftab-desc { display: none; }
.feature-panels { background: var(--white); }
.feature-panel { display: none; }
.feature-panel.is-active { display: block; }
.fpanel-header {
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid #E0DCD0;
}
.fpanel-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--black);
  margin-bottom: 0.35rem;
}
.fpanel-header p { font-size: 0.875rem; color: var(--muted); line-height: 1.6; }
.fpanel-header code {
  font-family: var(--mono);
  font-size: 0.82em;
  background: var(--bg);
  padding: 0.1em 0.4em;
  border: 1px solid #D0CCC0;
}
.fpanel-code {
  padding: 1.25rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.8;
  background: var(--white);
  color: #2C2C2C;
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}
.code-keyword { color: #1A7A3F; font-weight: 700; }
.code-comment { color: #9A9585; font-style: italic; }
.code-string  { color: #6B5A00; }
.code-var     { color: #1A5FA0; }
.code-meta    { color: #B0AA98; }

/* ─── LINKS SECTION ─── */
.links-section {
  background: var(--surface);
  border-bottom: var(--border-w) solid var(--black);
  padding: 4rem 1.5rem;
}
.links-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.links-group-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.25rem;
}
.links-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.links-list a {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-top: 1px solid #D8D4C8;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--black);
  transition: color 0.1s;
}
.links-list a:last-child {
  border-bottom: 1px solid #D8D4C8;
}
.links-list a:hover { color: var(--lime-muted); }
.links-list-arrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--lime-muted);
  flex-shrink: 0;
}

/* ─── FOOTER ─── */
.site-footer {
  background: var(--black);
  padding: 3.5rem 1.5rem;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-brand {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.footer-links {
  display: flex;
  gap: 2rem;
}
.footer-links a {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.15s, color 0.15s;
}
.footer-links a:hover {
  color: var(--lime);
  border-color: var(--lime);
}
.footer-copy {
  font-size: 0.75rem;
  color: #555;
  font-family: var(--mono);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 720px) {
  .demo-grid { grid-template-columns: 1fr; }
  .feature-row { grid-template-columns: 3rem 1fr; gap: 1rem; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
  .links-grid { grid-template-columns: 1fr; gap: 2rem; }
}