:root {
  --bg: #080512;
  --bg-subtle: #120b22;
  --violet: #8b5cf6;
  --violet-glow: rgba(139, 92, 246, 0.4);
  --violet-soft: #c4b5fd;
  --ink: #f8f7fc;
  --ink-dim: #ada4c3;

  /* Optical Glass Tokens */
  --glass-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(20, 13, 38, 0.6) 45%, rgba(139, 92, 246, 0.08) 100%);
  --glass-stroke: rgba(255, 255, 255, 0.14);
  --glass-stroke-top: rgba(255, 255, 255, 0.35);

  --lens-shadow: 0 10px 30px -8px rgba(2, 1, 8, 0.7),
                 inset 0 1.5px 1px 0 rgba(255, 255, 255, 0.4),
                 inset 0 -1.5px 2px 0 rgba(0, 0, 0, 0.4),
                 inset 0 0 16px 0 rgba(139, 92, 246, 0.06);

  --radius: 1.15rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

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

/* Fluid Auto-Scaler: Everything based on rem scales to screen width */
html {
  scroll-behavior: smooth;
  font-size: clamp(13.5px, 3.8vw, 17px);
  background-color: var(--bg);
}

body {
  min-height: calc(var(--vvh, 1vh) * 100);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

::selection {
  background: var(--violet);
  color: #fff;
}

img, svg {
  max-width: 100%;
  height: auto;
}

.wrap {
  width: 100%;
  max-width: 68rem;
  margin: 0 auto;
  padding-inline: max(1rem, env(safe-area-inset-left), env(safe-area-inset-right));
}

/* ==========================================================================
   LOW-END OPTIMIZED AMBIENT BACKGROUND
   ========================================================================== */
.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background: radial-gradient(1200px 700px at 80% -10%, var(--bg-subtle), transparent 70%), var(--bg);
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  opacity: 0.65;
  transform: translateZ(0);
  will-change: transform;
}

.orb-a {
  width: 55vmax;
  height: 55vmax;
  left: -15vmax;
  top: -15vmax;
  background: radial-gradient(circle closest-side, rgba(91, 33, 182, 0.45) 0%, rgba(91, 33, 182, 0.2) 40%, rgba(91, 33, 182, 0.04) 70%, transparent 100%);
  animation: drift 28s ease-in-out infinite alternate;
}

.orb-b {
  width: 48vmax;
  height: 48vmax;
  right: -12vmax;
  bottom: -12vmax;
  background: radial-gradient(circle closest-side, rgba(67, 24, 154, 0.4) 0%, rgba(49, 46, 129, 0.18) 45%, rgba(49, 46, 129, 0.03) 75%, transparent 100%);
  animation: drift 34s ease-in-out infinite alternate-reverse;
}

@keyframes drift {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(4vmax, 3vmax, 0); }
}

.grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(167, 139, 250, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167, 139, 250, 0.04) 1px, transparent 1px);
  background-size: 3.2rem 3.2rem;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 35%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 35%, transparent 75%);
}

/* ==========================================================================
   CONVEX OPTICAL GLASS
   ========================================================================== */
.glass {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-stroke);
  border-top-color: var(--glass-stroke-top);
  border-radius: var(--radius);
  box-shadow: var(--lens-shadow);
  backdrop-filter: blur(9px) saturate(145%);
  -webkit-backdrop-filter: blur(9px) saturate(145%);
  transform: translateZ(0);
}

.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.02) 35%, transparent 100%);
}

/* ==========================================================================
   NAVIGATION BAR (Auto-Scaled & Safe-Area Aware)
   ========================================================================== */
nav {
  position: sticky;
  top: max(0.6rem, env(safe-area-inset-top));
  z-index: 100;
  width: 100%;
  max-width: 68rem;
  margin: 0.5rem auto 0;
  padding-inline: max(1rem, env(safe-area-inset-left), env(safe-area-inset-right));
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.85rem;
  min-height: 3.6rem;
  overflow: visible !important;
}

.brand {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 750;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.05rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: radial-gradient(ellipse at 50% -20%, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.02) 65%, transparent 100%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-top-color: rgba(255, 255, 255, 0.45);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.35), inset 0 -1px 2px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s;
}

.brand svg {
  width: 1.65rem;
  height: 1.65rem;
  filter: drop-shadow(0 0 6px var(--violet-glow));
}

.brand span {
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7), 0 0 10px rgba(196, 181, 253, 0.5);
}

.brand:hover, .brand:active {
  transform: scale(1.04);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.3rem;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.65rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-stroke);
  border-top-color: var(--glass-stroke-top);
  border-radius: 0.75rem;
  cursor: pointer;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.3);
  z-index: 1010;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.22s ease, opacity 0.18s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-links {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.nav-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 0.92rem;
  padding: 0.5rem 0.85rem;
  border-radius: 0.65rem;
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  min-height: 2.85rem;
  border-radius: 0.85rem;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid var(--glass-stroke);
  border-top-color: var(--glass-stroke-top);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.3), inset 0 -1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.35);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease, border-color 0.2s;
}

.btn:hover {
  transform: translateY(-2px) scale(1.02);
  background: rgba(255, 255, 255, 0.1);
  border-top-color: rgba(255, 255, 255, 0.55);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, #7c3aed, #8b5cf6 85%);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.65);
  color: #fff;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.45), inset 0 1.5px 1px rgba(255, 255, 255, 0.45);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--violet-soft);
  padding: 0.45rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.4rem;
  background: radial-gradient(ellipse at 50% -20%, rgba(255, 255, 255, 0.22) 0%, rgba(139, 92, 246, 0.1) 60%, rgba(10, 6, 20, 0.5) 100%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-top-color: rgba(255, 255, 255, 0.45);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.35), 0 4px 12px rgba(0, 0, 0, 0.3);
}

.dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 8px #34d399;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  padding-block: clamp(2.8rem, 10vw, 5rem) clamp(2rem, 7vw, 3.5rem);
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.75rem, 6.8vw, 3.5rem);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 1.1rem;
  background: linear-gradient(180deg, #ffffff 40%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ark {
  background: linear-gradient(120deg, #c4b5fd, #8b5cf6 60%, #6d28d9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.sub {
  max-width: 38rem;
  margin: 0 auto 1.8rem;
  color: var(--ink-dim);
  font-size: clamp(0.92rem, 3.5vw, 1.05rem);
}

.cta {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.cta .btn {
  width: 100%;
  max-width: 20rem;
}

.tagline {
  margin-top: 1.6rem;
  font-size: 0.88rem;
  color: var(--ink-dim);
  font-style: italic;
  opacity: 0.85;
}

/* ==========================================================================
   CARDS WITH MAGNIFYING OPTICAL GLASS
   ========================================================================== */
section {
  padding-block: clamp(2.2rem, 8vw, 4rem);
}

.sec-head {
  text-align: center;
  margin-bottom: clamp(1.6rem, 5vw, 2.4rem);
}

.kicker {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--violet-soft);
}

.sec-head h2 {
  font-size: clamp(1.4rem, 5.5vw, 2.2rem);
  line-height: 1.22;
  font-weight: 750;
  margin-top: 0.5rem;
}

.sec-head p {
  color: var(--ink-dim);
  max-width: 35rem;
  margin: 0.6rem auto 0;
  font-size: 0.95rem;
}

/* ============================================================================
   YOUTUBE DEMO
   ============================================================================ */
.video-section {
  padding-top: clamp(2rem, 7vw, 3.5rem);
}

.video-shell {
  max-width: 29rem;
  margin: 0 auto;
  padding: clamp(0.65rem, 2vw, 1rem);
}

.video-frame {
  position: relative;
  width: min(100%, 24rem);
  aspect-ratio: 9 / 16;
  margin: 0 auto;
  overflow: hidden;
  border-radius: calc(var(--radius) - 0.25rem);
  background: #05030b;
  box-shadow: 0 12px 28px rgba(2, 1, 8, 0.55), inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.video-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-note {
  margin: 0.7rem 0.25rem 0;
  color: var(--ink-dim);
  font-size: 0.78rem;
  text-align: center;
}

.command-shell {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: 0.55rem;
  margin: 0.7rem 0.25rem 0;
  padding: 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-top-color: rgba(255, 255, 255, 0.3);
  border-radius: 0.85rem;
  background: rgba(4, 2, 12, 0.72);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.08), 0 8px 18px rgba(2, 1, 8, 0.28);
}

.command-block {
  flex: 1;
  min-width: 0;
  margin: 0;
  overflow-x: auto;
  color: var(--violet-soft);
  font: 0.82rem/1.6 var(--mono);
  white-space: pre;
  scrollbar-width: thin;
  scrollbar-color: rgba(196, 181, 253, 0.38) transparent;
}

.copy-command {
  flex: 0 0 auto;
  align-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2.4rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-top-color: rgba(255, 255, 255, 0.55);
  border-radius: 0.65rem;
  color: #fff;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.9), rgba(139, 92, 246, 0.72));
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.35);
  font: 600 0.82rem/1 var(--font);
  cursor: pointer;
  transition: transform 0.2s ease, filter 0.2s ease, background 0.2s ease;
}

.copy-command svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.copy-command:hover { filter: brightness(1.12); transform: translateY(-1px); }
.copy-command:active { transform: translateY(0) scale(0.97); }
.copy-command:focus-visible { outline: 2px solid var(--violet-soft); outline-offset: 2px; }
.copy-command.is-copied { background: linear-gradient(135deg, #059669, #10b981); }

@media (max-width: 28rem) {
  .command-shell { align-items: flex-start; }
  .copy-command span { display: none; }
  .copy-command { padding-inline: 0.65rem; }
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  position: relative;
  min-width: 0;
  padding: 1.4rem 1.25rem;
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: 14rem;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(ellipse 110% 70% at 50% 0%, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.02) 50%, transparent 80%),
              radial-gradient(circle at 80% 100%, rgba(139, 92, 246, 0.12) 0%, transparent 60%);
  opacity: 0.85;
}

.card:hover, .card:active {
  transform: translateY(-3px) scale(1.02);
  border-top-color: rgba(255, 255, 255, 0.55);
  box-shadow: 0 16px 36px -8px rgba(2, 1, 8, 0.8),
              inset 0 1.5px 1.5px rgba(255, 255, 255, 0.45),
              inset 0 0 20px rgba(167, 139, 250, 0.15);
}

.icon {
  position: relative;
  z-index: 1;
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 0.85rem;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.22) 0%, rgba(139, 92, 246, 0.16) 50%, rgba(20, 10, 40, 0.4) 100%);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-top-color: rgba(255, 255, 255, 0.55);
  margin-bottom: 1rem;
  color: var(--violet-soft);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.4), 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.icon svg {
  width: 1.45rem;
  height: 1.45rem;
}

.card:hover .icon, .card:active .icon {
  transform: scale(1.1) translateY(-2px);
}

.card h3 {
  font-size: 1.12rem;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.92rem;
  color: var(--ink-dim);
}

.quote {
  display: block;
  margin-top: 0.9rem;
  font-size: 0.82rem;
  font-style: italic;
  color: var(--violet-soft);
  opacity: 0.85;
}

/* ==========================================================================
   STEPS & TERMINAL
   ========================================================================== */
.steps {
  display: grid;
  gap: 0.9rem;
  max-width: 46rem;
  margin: 0 auto;
}

.step {
  position: relative;
  display: flex;
  gap: 1rem;
  padding: 1.15rem;
  align-items: flex-start;
  min-width: 0;
  content-visibility: auto;
  contain-intrinsic-size: 7rem;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.step:hover {
  transform: translateY(-2px) scale(1.015);
}

.step > div {
  min-width: 0;
  flex: 1;
}

.num {
  flex: none;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  background: linear-gradient(135deg, #7c3aed, #a78bfa);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 14px var(--violet-glow);
}

.step h3 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--ink-dim);
}

pre {
  max-width: 100%;
  overflow-x: auto;
  margin-top: 0.65rem;
  padding: 0.65rem 0.85rem;
  line-height: 1.45;
  font-family: var(--mono);
  font-size: 0.8rem;
  background: rgba(6, 4, 14, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top-color: rgba(255, 255, 255, 0.2);
  border-radius: 0.6rem;
  color: #c4b5fd;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4);
}

/* Inline code — commands, package names and flags called out in prose. */
code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: rgba(6, 4, 14, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 0.35em;
  padding: 0.1em 0.4em;
  color: #c4b5fd;
  word-break: break-word;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 1em;
  color: inherit;
  word-break: normal;
}

/* ==========================================================================
   PACKAGE-MANAGER ROWS (one distro family = one tool + its commands)
   ========================================================================== */
.pkg-list {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.pkg {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem 0.9rem;
  padding: 0.7rem 0.85rem;
  background: rgba(6, 4, 14, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top-color: rgba(255, 255, 255, 0.18);
  border-radius: 0.7rem;
  min-width: 0;
}

.pkg-name {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-weight: 700;
  font-size: 0.92rem;
  min-width: 0;
}

.pkg-name .mgr {
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--violet-soft);
}

.pkg-cmds {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 0;
}

.pkg-cmd {
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
  min-width: 0;
}

.cmd-l {
  flex: none;
  width: 5rem;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.pkg-cmd code {
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
}

@media (min-width: 42rem) {
  .pkg { grid-template-columns: minmax(9rem, 14rem) 1fr; align-items: center; }
}

/* ==========================================================================
   DOWNLOAD CARD & CHIPS
   ========================================================================== */
.dl-card {
  max-width: 40rem;
  margin: 0 auto;
  text-align: center;
  padding: clamp(1.8rem, 6vw, 2.8rem) clamp(1.2rem, 5vw, 2rem);
}

.dl-card h2 {
  font-size: clamp(1.4rem, 5vw, 2.1rem);
  margin: 0.5rem 0 0.75rem;
}

.dl-card p {
  color: var(--ink-dim);
  margin-bottom: 1.6rem;
  font-size: 0.95rem;
}

.dl-card .btn {
  width: 100%;
  max-width: 20rem;
}

.req {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.chip {
  font-size: 0.76rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  color: var(--ink-dim);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-top-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.04);
}

.chip b {
  color: var(--ink);
}

/* Status-chip variants — same glass base as .chip, just a colored
   accent so a stack choice reads as good/caution/heavy at a glance. */
.chip-ok   { color: #34d399; border-color: rgba(52, 211, 153, 0.35); }
.chip-warn { color: #f59e0b; border-color: rgba(245, 158, 11, 0.35); }
.chip-heavy{ color: #fb7185; border-color: rgba(251, 113, 133, 0.35); }

/* Compact one-line-per-option rows — used for the Desktop
   Environment list, where six full cards would be too much scroll
   for what's really just a name + verdict + a couple of tags. */
.de-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
  padding: 0.9rem 1.1rem;
}

.de-row + .de-row {
  margin-top: 0.6rem;
}

.de-row .de-name {
  font-weight: 700;
  flex: none;
  min-width: 6rem;
}

.de-row .de-desc {
  flex: 1 1 16rem;
  font-size: 0.88rem;
  color: var(--ink-dim);
}

.de-row .de-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.sub-kicker {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet-soft);
  margin: 2.4rem 0 0.5rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
  padding: 2.5rem 0 calc(2rem + env(safe-area-inset-bottom));
  text-align: center;
  color: var(--ink-dim);
  font-size: 0.85rem;
}

footer .glass {
  padding: 1.5rem 1.25rem;
}

footer a {
  color: var(--violet-soft);
  text-decoration: none;
  padding: 0.2rem 0.35rem;
}

.foot-links {
  margin-top: 0.65rem;
}

.fine {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  opacity: 0.65;
}

.rv {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.rv.in {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   RESPONSIVE DESIGN & MOBILE DRAWER ADAPTATION
   ========================================================================== */
@media (min-width: 36rem) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cta .btn, .dl-card .btn { width: auto; }
}

@media (min-width: 50rem) {
  .cards { grid-template-columns: repeat(3, 1fr); gap: 1.15rem; }
  .br-lg { display: inline; }
}

/* Mobile Screen Layout
   Raised from 49.99rem: five nav links + the download button no
   longer fit one desktop row below ~64rem (1024px) once Prerequisites/
   Choose Stack/Known Issues were added — this keeps the nav from
   overflowing on tablets and small laptops instead of just phones. */
@media (max-width: 64rem) {
  .nav-toggle {
    display: flex;
    z-index: 1010;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 0.6rem);
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    padding: 1rem;
    border-radius: 1.15rem;
    background: linear-gradient(135deg, rgba(25, 16, 46, 0.97) 0%, rgba(14, 9, 28, 0.98) 100%);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-top-color: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.75), inset 0 1.5px 1px rgba(255, 255, 255, 0.35);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px) scale(0.98);
    transition: opacity 0.24s cubic-bezier(0.16, 1, 0.3, 1), transform 0.24s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.24s;
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }

  .nav-links a {
    padding: 0.85rem 1rem;
    font-size: 1.02rem;
    text-align: center;
    border-radius: 0.75rem;
  }

  .nav-links .btn {
    margin-top: 0.35rem;
    min-height: 3rem;
  }
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass { background: rgba(22, 14, 40, 0.95); }
  .orb { opacity: 0.25; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .rv {
    opacity: 1;
    transform: none;
  }
}