/* ==========================================================================
   Tandem Commander — main stylesheet
   Design tokens ported 1:1 from the Claude Design export (temp/web_source).
   ========================================================================== */

/* ---- Fonts (self-hosted, SIL Open Font License — see /fonts/) ----
   Each face ships as a latin subset plus a latin-ext subset gated by
   unicode-range: English pages never download the -ext files, Czech pages
   pull them in only for glyphs like ě š č ř ž ů (spec 004, FR-009). */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/archivo-latin-400-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/archivo-latin-500-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/archivo-latin-600-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/archivo-latin-700-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('/fonts/archivo-latin-800-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/archivo-latin-ext-400-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/archivo-latin-ext-500-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/archivo-latin-ext-600-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/archivo-latin-ext-700-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('/fonts/archivo-latin-ext-800-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-latin-ext-400-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-latin-ext-500-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ---- Theme tokens ---- */
:root,
[data-theme="light"] {
  --bg: #FFFFFF; --bg-alt: #F7F8FA; --surface: #FFFFFF; --surface-alt: #F2F5F9;
  --line: #E4E9F1; --line-strong: #CBD8E8;
  --fg: #0A1424; --fg-2: #44546C; --fg-3: #5D82B8;
  --brand: #EA6A0B; --brand-solid: #F97316; --brand-hover: #EA6A0B;
  --chip-bg: #FFF3E7; --chip-fg: #B85306; --chip-line: #FBDCC0;
  --header-bg: rgba(255,255,255,.84);
  --shadow-sm: 0 1px 2px rgba(10,20,36,.05), 0 8px 24px rgba(10,20,36,.05);
  --shadow-lg: 0 2px 4px rgba(10,20,36,.06), 0 24px 60px rgba(10,20,36,.11);
  --glow: radial-gradient(60% 60% at 50% 0%, rgba(249,115,22,.10), rgba(249,115,22,0) 70%);
  --code-bg: #0F1828; --code-fg: #EAF2FB;
  --seg-l-bg: var(--fg); --seg-l-fg: var(--bg); --seg-d-bg: transparent; --seg-d-fg: var(--fg-3);
  --light-op: 1; --dark-op: 0;
}
[data-theme="dark"] {
  --bg: #0A1424; --bg-alt: #070E1A; --surface: #131C2E; --surface-alt: #0F1828;
  --line: #1F2B41; --line-strong: #2C3D59;
  --fg: #EAF2FB; --fg-2: #A9BCD4; --fg-3: #8FA6C4;
  --brand: #F97316; --brand-solid: #F97316; --brand-hover: #FFB35C;
  --chip-bg: rgba(249,115,22,.12); --chip-fg: #FFB35C; --chip-line: rgba(249,115,22,.26);
  --header-bg: rgba(10,20,36,.84);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.30);
  --shadow-lg: 0 2px 4px rgba(0,0,0,.45), 0 28px 64px rgba(0,0,0,.5);
  --glow: radial-gradient(60% 60% at 50% 0%, rgba(249,115,22,.16), rgba(249,115,22,0) 70%);
  --code-bg: #060C17; --code-fg: #EAF2FB;
  --seg-l-bg: transparent; --seg-l-fg: var(--fg-3); --seg-d-bg: var(--fg); --seg-d-fg: var(--bg);
  --light-op: 0; --dark-op: 1;
}

/* ---- Base ---- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: #FFFFFF; }
html[data-theme="dark"] { background: #0A1424; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg-2);
  font-family: Archivo, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}
body * { transition: background-color .22s ease, color .22s ease, border-color .22s ease, opacity .28s ease; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-hover); text-decoration: underline; text-underline-offset: 3px; }
h1, h2, h3 { text-wrap: balance; }
img { display: block; max-width: 100%; }
button { font-family: inherit; }
.mono { font-family: 'IBM Plex Mono', monospace; font-size: .9em; color: var(--fg); }
.mono--md { font-size: 15px; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: none;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-mark { width: 36px; height: 36px; flex: none; }
.brand-name {
  font-size: 20.5px;
  font-weight: 800;
  letter-spacing: -.022em;
  white-space: nowrap;
  color: var(--fg);
}
.brand-accent { color: var(--brand); }
.site-nav { display: flex; align-items: center; gap: 30px; }
.nav-link {
  color: var(--fg-2);
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
}
.nav-link:hover { color: var(--brand); text-decoration: none; }
.theme-toggle {
  display: flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-alt);
}
.theme-btn {
  border: 0;
  cursor: pointer;
  padding: 6px 13px;
  border-radius: 999px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.theme-btn--light { background: var(--seg-l-bg); color: var(--seg-l-fg); }
.theme-btn--dark { background: var(--seg-d-bg); color: var(--seg-d-fg); }

/* Language switcher (spec 004): same segmented pill as the theme toggle. */
.lang-toggle {
  display: flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-alt);
}
.lang-link {
  padding: 6px 11px;
  border-radius: 999px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--fg-2);
  text-decoration: none;
}
.lang-link:hover { color: var(--brand); text-decoration: none; }
.lang-link[aria-current="true"] { background: var(--brand); color: #FFFFFF; }
.lang-link[aria-current="true"]:hover { color: #FFFFFF; }
.lang-link:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }

/* ==========================================================================
   Sections — shared building blocks
   ========================================================================== */
.section { padding: 84px 32px 96px; scroll-margin-top: 88px; }
.section--roomy { padding: 96px 32px; }
.section--divided { border-bottom: 1px solid var(--line); }
.section--download { padding: 96px 32px 104px; }
.section-inner { max-width: 1160px; margin: 0 auto; }
.section-head { max-width: 700px; margin-bottom: 40px; }
.kicker {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin: 0 0 14px;
}
.section-title {
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.1;
  color: var(--fg);
  margin: 0 0 16px;
}
.section-title--md {
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.12;
  margin: 0 0 26px;
}
.section-lead { font-size: 17.5px; color: var(--fg-2); margin: 0; }
.band {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-top: 84px;
  padding-bottom: 84px;
}
.accent { color: var(--brand); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15.5px;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn--primary {
  background: var(--brand-solid);
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(249,115,22,.28);
}
.btn--primary:hover {
  background: var(--brand-hover);
  color: #FFFFFF;
  transform: translateY(-1px);
}
.btn--secondary {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--line-strong);
}
.btn--secondary:hover { border-color: var(--brand); color: var(--brand); }
.btn-badge {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: rgba(255,255,255,.22);
  padding: 3px 7px;
  border-radius: 5px;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { background-image: var(--glow); padding: 78px 32px 20px; scroll-margin-top: 88px; }
.hero-inner { max-width: 1160px; margin: 0 auto; text-align: center; }
.hero-lockup {
  position: relative;
  width: min(560px, 100%);
  aspect-ratio: 900 / 200;
  margin: 0 auto 34px;
  transform: translateX(-1.33%);
}
.lockup {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.lockup--light { opacity: var(--light-op); }
.lockup--dark { opacity: var(--dark-op); }
.hero-title {
  font-size: clamp(32px, 5.6vw, 54px);
  font-weight: 800;
  letter-spacing: -.032em;
  line-height: 1.02;
  color: var(--fg);
  margin: 0 auto;
  max-width: 900px;
}
.hero-lead {
  font-size: 19.5px;
  line-height: 1.6;
  color: var(--fg-2);
  max-width: 680px;
  margin: 26px auto 0;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 40px;
}
.hero-note {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--fg-3);
  margin: 20px 0 0;
}

/* ==========================================================================
   Screens (theme showcase)
   ========================================================================== */
.screens-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(430px, 100%), 1fr));
  gap: 26px;
}
.shot { margin: 0; }
.shot-caption { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.swatch {
  width: 11px;
  height: 11px;
  border-radius: 3px;
  border: 1px solid var(--line-strong);
}
.swatch--light { background: #FDFEFF; }
.swatch--dark { background: #131C2E; }
.shot-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.shot-note { font-size: 13.5px; color: var(--fg-3); }
.shot-frame {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}
.shot-frame img { width: 100%; height: auto; }

/* ==========================================================================
   Lightbox (screenshot viewer)
   Transitions are declared explicitly on every animated element so the
   global `body *` transition rule above cannot re-time them. The entrance
   only fades and translates — it never scales the raster image, because
   continuous rescaling of the screenshots aliases visibly.
   ========================================================================== */
.shot-zoom {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}
.shot-zoom-icon {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(10, 20, 36, .55);
  color: #EAF2FB;
  pointer-events: none;
}
@media (hover: hover) {
  .shot-zoom:hover .shot-zoom-icon { background: rgba(10, 20, 36, .8); }
}
.shot-zoom:focus-visible {
  outline: 2px solid var(--brand-solid);
  outline-offset: 3px;
}

.lightbox {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  overscroll-behavior: contain;
}
.lightbox[open] {
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox::backdrop {
  background: rgba(4, 10, 20, .82);
  opacity: 0;
  transition: opacity .3s ease;
}
.lightbox.is-open::backdrop { opacity: 1; }
.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  max-height: 90dvh;
  width: auto;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(28px);
  transition: transform .3s cubic-bezier(.22, .61, .36, 1), opacity .3s ease;
}
.lightbox.is-open .lightbox-img {
  opacity: 1;
  transform: none;
}
.lightbox.is-closing .lightbox-img { transition-duration: .22s; }
.lightbox-close {
  position: absolute;
  top: 16px;
  top: max(16px, env(safe-area-inset-top));
  right: 16px;
  right: max(16px, env(safe-area-inset-right));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 50%;
  background: rgba(10, 20, 36, .55);
  color: #EAF2FB;
  cursor: pointer;
  opacity: 0;
  transition: opacity .3s ease, background-color .22s ease, border-color .22s ease;
}
.lightbox.is-open .lightbox-close { opacity: 1; }
.lightbox-close:hover {
  background: rgba(10, 20, 36, .8);
  border-color: rgba(255, 255, 255, .5);
}
.lightbox-close:focus-visible {
  outline: 2px solid var(--brand-solid);
  outline-offset: 2px;
}
html.lightbox-open { overflow: hidden; }

@media (max-width: 859.98px) {
  .lightbox-img {
    max-width: calc(100vw - 20px);
    max-height: 88vh;
    max-height: 88dvh;
  }
  .lightbox-close { top: 10px; right: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .lightbox-img,
  .lightbox::backdrop,
  .lightbox-close { transition: none; }
}

/* ==========================================================================
   Cards (What it is / What's new)
   ========================================================================== */
.card-grid { display: grid; gap: 22px; }
.card-grid--features { grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); }
.card-grid--news { grid-template-columns: repeat(auto-fit, minmax(min(258px, 100%), 1fr)); }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
}
.card--accent { border-top: 2px solid var(--brand-solid); }
.card--tight { padding: 26px 24px; }
.card-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin: 0 0 14px;
}
.card-num--brand { color: var(--brand); }
.card-title {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--fg);
  margin: 0 0 10px;
}
.card-title--sm { font-size: 18px; letter-spacing: 0; margin: 0 0 8px; }
.card-text { font-size: 15.5px; color: var(--fg-2); margin: 0; }
.card-text--sm { font-size: 15px; }

/* ==========================================================================
   Project
   ========================================================================== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(340px, 100%), 1fr));
  gap: 56px;
  align-items: start;
}
.project-text { font-size: 17px; color: var(--fg-2); margin: 0 0 18px; }
.project-text--flush { margin: 0; }
.agentic-note {
  border-left: 2px solid var(--brand-solid);
  padding: 4px 0 4px 20px;
  margin: 26px 0 0;
}
.facts {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 8px 26px 12px;
  box-shadow: var(--shadow-sm);
}
.fact {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.fact:last-child { border-bottom: 0; }
.fact-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.fact-value { font-size: 15.5px; font-weight: 600; color: var(--fg); text-align: right; }

/* ==========================================================================
   Story (From the author)
   ========================================================================== */
.story-inner { max-width: 760px; margin: 0 auto; }
.story-text { font-size: 17px; color: var(--fg-2); margin: 0 0 18px; }
.story-text--flush { margin: 0; }
.story-strong { color: var(--fg); }
.story-signature { font-size: 17px; color: var(--fg); font-weight: 600; margin: 26px 0 0; }
.story-mail { font-weight: 400; font-size: 15.5px; }

/* ==========================================================================
   Download
   ========================================================================== */
.download-inner { max-width: 820px; margin: 0 auto; text-align: center; }
.download-mark { width: 88px; height: 88px; margin: 0 auto 26px; }
.section--download .section-title--md { margin-bottom: 16px; }
.installer-wrap { max-width: 420px; margin: 0 auto 40px; }
.installer-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 2px solid var(--brand-solid);
  border-radius: 14px;
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}
.installer-title { font-size: 19px; font-weight: 700; color: var(--fg); margin: 0; }
.installer-desc { font-size: 14.5px; color: var(--fg-2); margin: 0 0 16px; }
.btn--download {
  justify-content: center;
  padding: 13px 24px;
  font-size: 15px;
  margin-top: auto;
}
.btn--download svg { margin-right: 9px; flex: none; }
.installer-file {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--fg-3);
  margin: 10px 0 0;
  text-align: center;
}
.download-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--fg-3);
  margin: 0 0 40px;
}
.disclaimer {
  max-width: 620px;
  margin: 0 auto 40px;
  background: var(--chip-bg);
  border: 1px solid var(--chip-line);
  border-left: 4px solid var(--brand-solid);
  border-radius: 12px;
  padding: 20px 24px;
  text-align: left;
}
.disclaimer-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--chip-fg);
  margin: 0 0 8px;
}
.disclaimer-text { font-size: 15px; font-weight: 600; color: var(--fg); margin: 0; }
.build-box {
  background: var(--code-bg);
  border-radius: 12px;
  padding: 24px 26px;
  text-align: left;
  overflow-x: auto;
  box-shadow: var(--shadow-lg);
}
.build-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #8FA6C4;
  margin: 0 0 14px;
}
.build-lines {
  display: grid;
  gap: 7px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--code-fg);
  white-space: nowrap;
}
.code-cmd { color: #F97316; }
.code-comment { color: #5D82B8; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  padding: 56px 32px 32px;
}
.footer-inner { max-width: 1160px; margin: 0 auto; }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1.6fr) repeat(auto-fit, minmax(140px, 1fr));
  gap: 44px;
  align-items: start;
}
.brand--footer { margin-bottom: 16px; }
.footer-tagline { font-size: 14.5px; color: var(--fg-3); margin: 0; max-width: 340px; }
.footer-col { display: grid; gap: 11px; }
.footer-heading {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin: 0 0 3px;
}
.footer-link { font-size: 14.5px; color: var(--fg-2); text-decoration: none; }
.footer-link:hover { color: var(--brand); text-decoration: none; }
.footer-plain { font-size: 14.5px; color: var(--fg-2); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.footer-legal {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--fg-3);
  margin: 0;
}
.footer-note { font-size: 12.5px; color: var(--fg-3); margin: 0; max-width: 560px; }

/* ==========================================================================
   Mobile navigation (hamburger + panel under the header)
   Breakpoint: 860px — the single source of the nav switch; keep the
   matchMedia query in js/main.js in sync when changing it.
   ========================================================================== */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  margin-right: -10px;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--fg);
  transition: transform .22s ease, opacity .22s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  padding: 6px 20px 20px;
}
.mobile-menu.open { display: grid; }
.mobile-link {
  padding: 13px 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg-2);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}
.mobile-link:hover { color: var(--brand); text-decoration: none; }
.theme-toggle--mobile { margin-top: 16px; justify-self: start; }
.lang-toggle--mobile { margin-top: 12px; justify-self: start; }

@media (max-width: 859.98px) {
  .site-nav { display: none; }
  .nav-toggle { display: inline-flex; }

  .header-inner { padding: 0 20px; }
  .hero { padding: 56px 20px 12px; }
  .section,
  .section--roomy,
  .section--download { padding: 64px 20px 72px; }
  .band { padding-top: 64px; padding-bottom: 64px; }
  .site-footer { padding: 44px 20px 28px; }
  .project-grid { gap: 40px; }
  .screens-grid { gap: 20px; }
}

@media (min-width: 860px) {
  .nav-toggle { display: none !important; }
  .mobile-menu { display: none !important; }
}

@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}