/* Tokyo Night Moon palette */
:root {
  --bg:        #222436;
  --bg-darker: #1e2030;
  --bg-raised: #2f334d;
  --bg-hover:  #363b54;
  --fg:        #c8d3f5;
  --fg-dim:    #828bb8;
  --fg-faint:  #545c7e;
  --border:    #3b4261;
  --blue:      #82aaff;
  --purple:    #c099ff;
  --green:     #c3e88d;
  --red:       #ff757f;
  --orange:    #ff966c;
  --yellow:    #ffc777;
  --cyan:      #86e1fc;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --shadow-sm: 0 4px 16px -4px rgba(0, 0, 0, 0.4);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', monospace;

  --container: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: var(--blue); color: var(--bg); }

a { color: var(--blue); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--cyan); }

code, pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; color: var(--fg); }

/* Grid background */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(circle at 20% 10%, rgba(130, 170, 255, 0.08), transparent 50%),
    radial-gradient(circle at 80% 60%, rgba(192, 153, 255, 0.07), transparent 55%),
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  opacity: 0.35;
  mask-image: linear-gradient(to bottom, black 0%, black 70%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 0%, black 70%, transparent 100%);
}

/* Nav */
.nav {
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--fg); }

.brand-mark { width: 32px; height: 32px; }
.brand-mark.sm { width: 22px; height: 22px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--fg-dim);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.nav-links a:hover { color: var(--fg); }

.nav-cta {
  background: var(--blue);
  color: var(--bg) !important;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--cyan); }

@media (max-width: 720px) {
  .nav-links a:not(.nav-cta) { display: none; }
}

/* Layout */
main { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

section { padding: 96px 0; }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}
.section-head h2 { margin-bottom: 12px; }
.section-head p {
  color: var(--fg-dim);
  font-size: 1.1rem;
}

/* Hero */
.hero {
  padding: 80px 0 120px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple);
  padding: 6px 14px;
  border: 1px solid rgba(192, 153, 255, 0.3);
  border-radius: 999px;
  background: rgba(192, 153, 255, 0.08);
  margin-bottom: 24px;
}

.hero-text h1 {
  margin-bottom: 24px;
}
.hero-text h1 .accent {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-dim);
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform 0.1s ease, background 0.15s ease, color 0.15s ease;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--blue);
  color: var(--bg);
}
.btn-primary:hover { background: var(--cyan); color: var(--bg); }

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-raised); color: var(--fg); border-color: var(--fg-faint); }

.hero-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--fg-dim);
  font-size: 0.9rem;
  font-family: var(--font-mono);
}
.hero-meta strong { color: var(--fg); font-weight: 500; }
.dot {
  display: inline-block;
  width: 3px; height: 3px;
  background: var(--fg-faint);
  border-radius: 50%;
}

/* Terminal */
.terminal {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
}
.term-head {
  background: var(--bg-raised);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.term-dot {
  width: 12px; height: 12px; border-radius: 50%;
}
.term-dot.red    { background: var(--red); }
.term-dot.yellow { background: var(--yellow); }
.term-dot.green  { background: var(--green); }
.term-title {
  margin-left: auto;
  margin-right: auto;
  font-size: 0.75rem;
  color: var(--fg-dim);
}
.term-body {
  padding: 18px 22px;
  min-height: 460px;
}
.term-body pre {
  margin: 0;
  white-space: pre;
  overflow-x: auto;
  color: var(--fg);
}

.prompt { color: var(--green); font-weight: 600; }
.cmd    { color: var(--fg); }
.c1 { color: var(--blue); }
.c2 { color: var(--fg-dim); }
.c3 { color: var(--green); }
.c4 { color: var(--fg-faint); }
.c5 { color: var(--yellow); }

.cursor {
  display: inline-block;
  color: var(--fg);
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; gap: 48px; }
  .terminal { font-size: 0.72rem; }
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--fg-faint);
  background: var(--bg-raised);
}
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { color: var(--fg-dim); margin: 0; }
.feature-card p strong { color: var(--fg); font-weight: 600; }

.feature-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.feature-icon svg { width: 24px; height: 24px; }
.icon-guard    { background: rgba(130, 170, 255, 0.15); color: var(--blue); }
.icon-desktop  { background: rgba(192, 153, 255, 0.15); color: var(--purple); }
.icon-tools    { background: rgba(195, 232, 141, 0.15); color: var(--green); }

@media (max-width: 860px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* Stack grid */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  max-width: 920px;
  margin: 0 auto;
}
.stack-item {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stack-k {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
}
.stack-v {
  color: var(--fg);
  font-weight: 500;
  font-size: 0.95rem;
}

@media (max-width: 820px) { .stack-grid { grid-template-columns: repeat(2, 1fr); } }

/* Download */
.dl-card {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: var(--shadow-sm);
}
.dl-main { flex: 1; min-width: 0; }
.dl-name {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.badge {
  background: var(--green);
  color: var(--bg);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.dl-meta {
  color: var(--fg-dim);
  font-size: 0.88rem;
  margin-top: 6px;
  font-family: var(--font-mono);
}

.dl-sub {
  max-width: 720px;
  margin: 20px auto 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--fg-dim);
}
.dl-sub a { color: var(--fg-dim); text-decoration: underline; text-decoration-color: var(--fg-faint); }
.dl-sub a:hover { color: var(--cyan); text-decoration-color: var(--cyan); }
.pipe { color: var(--fg-faint); margin: 0 8px; }

.verify {
  max-width: 720px;
  margin: 36px auto 0;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 20px;
}
.verify summary {
  cursor: pointer;
  padding: 12px 0;
  color: var(--fg);
  font-weight: 500;
  list-style: none;
}
.verify summary::-webkit-details-marker { display: none; }
.verify summary::before {
  content: '›';
  display: inline-block;
  margin-right: 10px;
  transition: transform 0.15s ease;
  color: var(--fg-dim);
}
.verify[open] summary::before { transform: rotate(90deg); }
.verify pre {
  margin: 0 0 12px;
  padding: 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.6;
}
.c-comment { color: var(--fg-faint); }

@media (max-width: 640px) {
  .dl-card { flex-direction: column; align-items: stretch; }
}

/* Install */
.install-code {
  max-width: 760px;
  margin: 0 auto;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow);
}
.install-code pre {
  margin: 0;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--fg);
}
.install-note {
  max-width: 680px;
  margin: 28px auto 0;
  text-align: center;
  color: var(--fg-dim);
  font-size: 0.95rem;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  max-width: 960px;
  margin: 0 auto;
}
.about-text p {
  color: var(--fg);
  font-size: 1.05rem;
  line-height: 1.75;
}
.about-text p:first-child::first-letter {
  font-family: var(--font-serif);
  font-size: 3.4rem;
  line-height: 0.9;
  float: left;
  padding: 4px 10px 0 0;
  color: var(--purple);
  font-weight: 600;
}
.about-text code {
  background: var(--bg-darker);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--green);
  font-size: 0.85em;
}

.about-aside {
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 24px 20px;
  height: fit-content;
}
.about-aside h4 {
  margin: 0 0 12px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--yellow);
}
.about-aside ul {
  margin: 0;
  padding-left: 18px;
  color: var(--fg-dim);
  font-size: 0.92rem;
}
.about-aside li { margin-bottom: 6px; }

@media (max-width: 820px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* Footer */
.footer {
  max-width: var(--container);
  margin: 80px auto 0;
  padding: 40px 32px;
  border-top: 1px solid var(--border);
}
.foot-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.foot-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 600;
}
.foot-links {
  display: flex;
  gap: 24px;
}
.foot-links a {
  color: var(--fg-dim);
  font-size: 0.92rem;
}
.foot-links a:hover { color: var(--fg); }
.foot-sub {
  color: var(--fg-faint);
  font-size: 0.82rem;
  text-align: center;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
}