:root {
  --brand-start: #0217bb;
  --brand-end: #2e2ef4;
  --brand-soft: #6b6cff;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 28px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06), 0 2px 6px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 24px 60px -20px rgba(2, 23, 187, 0.25), 0 8px 30px rgba(15, 23, 42, 0.08);

  --bg: #fbfbfd;
  --bg-elev: #ffffff;
  --bg-soft: #f3f4fa;
  --text: #0b1020;
  --text-muted: #4b5267;
  --text-faint: #6b7280;
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.14);
  --code-bg: #f1f2f8;
  --code-text: #1a1f36;
  --backdrop-1: rgba(46, 46, 244, 0.10);
  --backdrop-2: rgba(2, 23, 187, 0.06);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0c14;
    --bg-elev: #11141f;
    --bg-soft: #161a27;
    --text: #e7ebf5;
    --text-muted: #a8b0c4;
    --text-faint: #7a8299;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.14);
    --code-bg: #181c2a;
    --code-text: #dbe1f3;
    --backdrop-1: rgba(70, 70, 255, 0.18);
    --backdrop-2: rgba(2, 23, 187, 0.20);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 24px 60px -20px rgba(46, 46, 244, 0.30), 0 8px 30px rgba(0, 0, 0, 0.5);
  }
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60rem 40rem at 80% -10%, var(--backdrop-1), transparent 60%),
    radial-gradient(50rem 35rem at -10% 10%, var(--backdrop-2), transparent 60%);
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0.5em 0;
}

code {
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 0.15em 0.45em;
  border-radius: 6px;
  border: 1px solid var(--border);
}

pre.code {
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.88rem;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow-x: auto;
  line-height: 1.7;
  margin: 0;
}

pre.code code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: inherit;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1.5rem, 6vw, 4rem);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.site-nav a {
  transition: color 0.15s ease;
}

.site-nav a:hover {
  color: var(--text);
}

.nav-github {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.nav-github:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

@media (max-width: 560px) {
  .site-nav a:not(.nav-github) {
    display: none;
  }
}

/* Main / Sections */
main {
  display: flex;
  flex-direction: column;
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 7rem) clamp(1.5rem, 6vw, 3rem);
  width: 100%;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 38rem;
  margin: 0 auto;
}

/* Hero */
.hero {
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 6vw, 3rem) clamp(3rem, 6vw, 5rem);
  text-align: center;
}

.hero-inner {
  max-width: 780px;
  margin: 0 auto;
}

.hero-logo {
  display: block;
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  margin: 0 auto 2rem;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-logo { animation: none; }
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
}

.gradient-text {
  background: linear-gradient(90deg, var(--brand-start), var(--brand-end));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.aws {
  color: #ff9900;
  font-weight: 500;
}

.lead {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 2.25rem;
  line-height: 1.7;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.45rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand-start), var(--brand-end));
  box-shadow: 0 8px 24px -6px rgba(2, 23, 187, 0.45), inset 0 1px 0 rgba(255,255,255,0.15);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px -6px rgba(2, 23, 187, 0.55), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-ghost {
  color: var(--text);
  background: var(--bg-elev);
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  transform: translateY(-1px);
  border-color: var(--brand-soft);
}

.btn-download {
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
  align-items: center;
}

.btn-stack {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.15;
  gap: 0.15rem;
}

.btn-line {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
}

.btn-version {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 600;
  font-size: 0.95rem;
}

.btn-sub {
  font-size: 0.74rem;
  font-weight: 400;
  opacity: 0.78;
  letter-spacing: 0.01em;
}

.hero-platforms {
  margin-top: 1.75rem;
  color: var(--text-faint);
  font-size: 0.9rem;
}

/* Grid / Cards */
.grid {
  display: grid;
  gap: 1.25rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Always two-up on desktop — auto-fit would leave a 4-card grid as 3 + 1. */
.grid-pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}

.card p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.65;
}

.card a {
  color: var(--brand-soft);
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.card a:hover {
  border-bottom-color: var(--brand-soft);
}

/* Terminal mockups (refresh comparison) */
.terminal-compare {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.terminal-solo {
  margin: 0 0 1.25rem;
}

.kctx-note {
  color: var(--text-faint);
  font-size: 0.95rem;
  margin-top: 1.25rem;
  max-width: 60ch;
}

.terminal {
  background: #0f1320;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 0.9rem;
  background: #161b2c;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-bar .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #3a4060;
}

.terminal-bar em {
  font-style: normal;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.02em;
  margin-left: 0.6rem;
}

.terminal[data-variant="manual"] .terminal-bar .dot:nth-child(1) { background: #ff5f57; }
.terminal[data-variant="manual"] .terminal-bar .dot:nth-child(2) { background: #febc2e; }
.terminal[data-variant="manual"] .terminal-bar .dot:nth-child(3) { background: #28c840; opacity: 0.5; }
.terminal[data-variant="frost"] .terminal-bar .dot:nth-child(1) { background: #ff5f57; }
.terminal[data-variant="frost"] .terminal-bar .dot:nth-child(2) { background: #febc2e; }
.terminal[data-variant="frost"] .terminal-bar .dot:nth-child(3) { background: #28c840; }

.terminal pre {
  margin: 0;
  padding: 1.1rem 1.25rem;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.85rem;
  line-height: 1.75;
  color: #dfe3f3;
  overflow-x: auto;
  flex: 1;
}

.terminal pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.t-dim { color: rgba(255, 255, 255, 0.42); }
.t-err { color: #ff7a7a; }
.t-ok  { color: #6ee7b7; }

@media (max-width: 720px) {
  .terminal pre {
    font-size: 0.78rem;
    padding: 0.9rem 1rem;
  }
}

/* Color palette for profile-name parts — light values; dark values overridden in @media block below */
[data-c="a1"] { --chip-bg: rgba(59, 130, 246, 0.10); --chip-fg: #2563eb; --chip-border: rgba(59, 130, 246, 0.28); --part-fg: #2563eb; }
[data-c="a2"] { --chip-bg: rgba(245, 158, 11, 0.12); --chip-fg: #b45309; --chip-border: rgba(245, 158, 11, 0.30); --part-fg: #b45309; }
[data-c="a3"] { --chip-bg: rgba(16, 185, 129, 0.12); --chip-fg: #047857; --chip-border: rgba(16, 185, 129, 0.30); --part-fg: #047857; }
[data-c="p1"] { --chip-bg: rgba(139, 92, 246, 0.12); --chip-fg: #6d28d9; --chip-border: rgba(139, 92, 246, 0.30); --part-fg: #6d28d9; }
[data-c="p2"] { --chip-bg: rgba(6, 182, 212, 0.12); --chip-fg: #0e7490; --chip-border: rgba(6, 182, 212, 0.30); --part-fg: #0e7490; }
[data-c="p3"] { --chip-bg: rgba(244, 63, 94, 0.12); --chip-fg: #be123c; --chip-border: rgba(244, 63, 94, 0.30); --part-fg: #be123c; }

@media (prefers-color-scheme: dark) {
  [data-c="a1"] { --chip-bg: rgba(96, 165, 250, 0.15); --chip-fg: #93c5fd; --chip-border: rgba(96, 165, 250, 0.32); --part-fg: #93c5fd; }
  [data-c="a2"] { --chip-bg: rgba(251, 191, 36, 0.15); --chip-fg: #fcd34d; --chip-border: rgba(251, 191, 36, 0.32); --part-fg: #fcd34d; }
  [data-c="a3"] { --chip-bg: rgba(52, 211, 153, 0.15); --chip-fg: #6ee7b7; --chip-border: rgba(52, 211, 153, 0.32); --part-fg: #6ee7b7; }
  [data-c="p1"] { --chip-bg: rgba(167, 139, 250, 0.18); --chip-fg: #c4b5fd; --chip-border: rgba(167, 139, 250, 0.32); --part-fg: #c4b5fd; }
  [data-c="p2"] { --chip-bg: rgba(34, 211, 238, 0.15); --chip-fg: #67e8f9; --chip-border: rgba(34, 211, 238, 0.32); --part-fg: #67e8f9; }
  [data-c="p3"] { --chip-bg: rgba(251, 113, 133, 0.18); --chip-fg: #fda4af; --chip-border: rgba(251, 113, 133, 0.32); --part-fg: #fda4af; }
}

/* Customize-intro — the "three knobs" headline between default and subsections */
.customize-intro {
  margin: 3rem 0 0.5rem;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  position: relative;
}

.customize-intro::before,
.customize-intro::after {
  content: '';
  display: inline-block;
  vertical-align: middle;
  width: clamp(1.5rem, 8vw, 3.5rem);
  height: 1px;
  background: var(--border-strong);
  margin: 0 0.85rem;
}

/* Subsections inside profiles */
.subsection {
  margin-top: 2.25rem;
}

.subsection h3 {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
}

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.85rem;
  height: 1.85rem;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--brand-start), var(--brand-end));
  color: #fff;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  font-feature-settings: "tnum";
  box-shadow: 0 4px 12px -4px rgba(2, 23, 187, 0.45);
}

.subsection > p {
  color: var(--text-muted);
  max-width: 60ch;
  margin-bottom: 1.25rem;
}

/* Permission set shorthand mappings — long → short */
.mappings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.1rem 1.5rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem clamp(1rem, 3vw, 1.75rem);
  box-shadow: var(--shadow-sm);
}

.mapping {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 0.65fr);
  align-items: center;
  column-gap: 0.7rem;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--border);
}

.mapping:last-child,
.mapping:nth-last-child(2):nth-child(odd) {
  /* last item in each column shouldn't have a border — covered by the
     final children when columns are odd/even */
}

.mapping-from,
.mapping-to {
  background: transparent;
  border: none;
  padding: 0;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.86rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mapping-from {
  color: var(--text-muted);
  text-align: right;
}

.mapping-arrow {
  color: var(--text-faint);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.9rem;
}

.mapping-to {
  color: var(--brand-soft);
  font-weight: 600;
}

@media (max-width: 720px) {
  .mapping {
    grid-template-columns: 1fr auto 1fr;
    column-gap: 0.5rem;
  }
  .mapping-from,
  .mapping-to {
    font-size: 0.82rem;
  }
}

/* AWS config snippet */
.config {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.86rem;
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.4rem;
  line-height: 1.75;
  margin: 0;
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.config code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

.c-comment { color: var(--text-faint); font-style: italic; }
.c-section { color: var(--brand-soft); font-weight: 600; }
.c-key { color: #ff9900; }
.c-val { color: var(--text); font-weight: 500; }

.c-section [data-c] {
  color: var(--chip-fg);
  font-weight: 700;
}

/* Hand-drawn highlight circle — wraps the "improvement" in each subsection */
.circled {
  position: relative;
  justify-self: start;
}

.doodle-circle {
  position: absolute;
  top: -35%;
  left: -10%;
  width: 120%;
  height: 170%;
  color: #ff9900;
  opacity: 0.85;
  pointer-events: none;
  transform: rotate(-2deg);
}

.section-header [data-c] {
  color: var(--chip-fg);
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  .c-val { color: #fff; }
}

/* Evolution — bring-it-all-together summary */
.evolution {
  margin-top: 3rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2rem);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.evolution::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(40rem 20rem at 100% 0%, rgba(46, 46, 244, 0.06), transparent 60%);
  pointer-events: none;
}

.evolution > * {
  position: relative;
}

.evolution h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.4rem;
}

.evolution > p {
  color: var(--text-muted);
  margin: 0 0 1.25rem;
}

.evolution-rows {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.evo-row {
  display: grid;
  grid-template-columns: minmax(7rem, auto) 1fr;
  align-items: center;
  gap: 0.85rem;
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  background: var(--bg-soft);
}

.evo-label {
  font-size: 0.82rem;
  color: var(--text-faint);
  font-weight: 500;
}

.evo-label code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: inherit;
  color: var(--text-muted);
}

.evo-name {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.95rem;
  background: transparent;
  border: none;
  padding: 0.25rem 0;
  white-space: nowrap;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

.evo-name > span {
  color: var(--chip-fg);
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  padding: 0.08rem 0.45rem;
  border-radius: 6px;
  font-weight: 600;
  margin: 0 0.05rem;
}

.evo-final {
  background: linear-gradient(135deg, rgba(2, 23, 187, 0.08), rgba(46, 46, 244, 0.08));
  border: 1px solid rgba(46, 46, 244, 0.18);
}

@media (prefers-color-scheme: dark) {
  .evo-final {
    background: linear-gradient(135deg, rgba(70, 70, 255, 0.18), rgba(2, 23, 187, 0.18));
    border-color: rgba(96, 96, 255, 0.28);
  }
}

.evo-final .evo-name {
  font-size: 1.05rem;
}

@media (max-width: 560px) {
  .evo-row {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}

/* Outro — snowflake anchored near the page's bottom-left, bleeds into EKS above */
.outro-section {
  position: relative;
  overflow: visible;
  padding: clamp(4rem, 7vw, 6rem) clamp(1.5rem, 6vw, 3rem) clamp(3rem, 5vw, 5rem);
  text-align: center;
}

/* Wrapper clips the snowflake at outro's bottom (so it can't bleed past the footer),
   but extends above outro so the snowflake can still spill up into the EKS section. */
.snowflake-wrap {
  position: absolute;
  top: -45vw;
  bottom: 0;
  left: 0;
  right: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
}

.outro-snowflake {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 70vw;
  height: 70vw;
  color: #a5b4fc;
  opacity: 0.32;
  /* center is 8vw right and 8vw above the outro's bottom-left corner */
  transform: translate(calc(-50% + 8vw), calc(50% - 8vw)) rotate(-15deg);
}

@media (prefers-color-scheme: dark) {
  .outro-snowflake {
    color: #a5b4fc;
    opacity: 0.4;
  }
}

.outro-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
  position: relative;
}

/* Download page */
.download-hero {
  padding-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.download-section {
  max-width: 920px;
  padding-top: clamp(1rem, 3vw, 2rem);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.download-loading {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-faint);
  padding: 3rem 0;
  font-size: 1.05rem;
}

.os-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2rem);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.os-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.os-card-detected {
  border-color: var(--brand-soft);
  box-shadow: var(--shadow-md);
}

.os-card-head {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.os-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
}

.os-icon svg {
  width: 28px;
  height: 28px;
}

.os-card-title {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.os-card-title h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}

.os-detected-tag {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--brand-soft);
}

.os-downloads {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.os-dl {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-md);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  font-weight: 600;
  color: var(--text);
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.os-dl:hover {
  transform: translateY(-1px);
  border-color: var(--brand-soft);
}

.os-dl svg {
  flex-shrink: 0;
  color: var(--brand-soft);
}

.os-card-detected .os-dl {
  background: linear-gradient(135deg, var(--brand-start), var(--brand-end));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(2, 23, 187, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.os-card-detected .os-dl svg {
  color: rgba(255, 255, 255, 0.92);
}

/* Per-platform caveat under the download buttons (see OS_META in
   download.html) - currently only Windows, for the SmartScreen warning. */
.os-hint {
  margin: 0.15rem 0 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.os-card-detected .os-dl:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px -8px rgba(2, 23, 187, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.download-other {
  text-align: center;
  margin-top: clamp(2.5rem, 6vw, 4rem);
  color: var(--text-faint);
  font-size: 0.92rem;
}

.download-other a {
  color: var(--text-muted);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.download-other a:hover {
  color: var(--text);
  border-bottom-color: var(--border-strong);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 2.5rem clamp(1.5rem, 6vw, 3rem);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  color: var(--text);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.footer-links a {
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-meta {
  color: var(--text-faint);
  font-size: 0.9rem;
}

/* ── App window mockup (#app) ─────────────────────────────────────────────── */

.app-shot-wrap {
  display: flex;
  justify-content: center;
  margin: 0 0 2.5rem;
}

.app-shot {
  width: 100%;
  max-width: 720px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elev);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  font-size: 13px;
  line-height: 1.45;
}

.app-titlebar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}

.app-titlebar .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--border-strong);
}

.app-body {
  display: grid;
  grid-template-columns: 180px 1fr;
  min-height: 340px;
}

.app-sidebar {
  padding: 0.9rem 0.7rem;
  border-right: 1px solid var(--border);
  background: var(--bg-soft);
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  color: var(--text);
  padding: 0 0.5rem 0.9rem;
}

.app-brand-mark {
  color: var(--brand-soft);
}

.app-navlabel {
  padding: 0 0.5rem;
  margin: 1rem 0 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.app-navlabel:first-of-type {
  margin-top: 0;
}

.app-nav {
  padding: 0.32rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.app-nav.is-active {
  background: linear-gradient(135deg, var(--brand-start), var(--brand-end));
  color: #fff;
  font-weight: 600;
}

.app-main {
  padding: 1.4rem 1.6rem;
}

.app-main h4 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.app-sub {
  margin: 0.2rem 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.app-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.35rem;
}

.app-field {
  padding: 0.5rem 0.7rem;
  margin-bottom: 1.1rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  color: var(--text);
}

.app-field-select {
  position: relative;
}

.app-field-select::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 0.75rem;
  width: 7px;
  height: 7px;
  margin-top: -5px;
  border-right: 2px solid var(--text-faint);
  border-bottom: 2px solid var(--text-faint);
  transform: rotate(45deg);
}

.app-save {
  display: inline-block;
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--brand-start), var(--brand-end));
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
}

@media (max-width: 640px) {
  .app-body {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .app-sidebar {
    display: none;
  }
}