/* ============================================================
   FERRET PROJECT — Design System CSS
   Inspired by GNOME Adwaita + Material Design
   Ferret-themed Linux distro website stylesheet
   ============================================================ */

/* ============================================================
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================================ */

:root {
  /* --- Color Palette --- */
  --color-fur-dark:       #DCA98B;   /* warm tan — primary accent */
  --color-midnight:       #000000;   /* pure black — deep bg */
  --color-pelt:           #877563;   /* mid brown — secondary text / muted */
  --color-fur-light:      #E9D1B3;   /* pale cream — surface highlight */
  --color-cream:          #FBEEDA;   /* near-white — lightest bg / text on dark */

  /* Semantic color mapping */
  --color-bg-base:        #0a0805;   /* slightly off-black for warmer feel */
  --color-bg-surface:     #13100d;   /* card / panel background */
  --color-bg-elevated:    #1e1810;   /* elevated components */
  --color-bg-overlay:     rgba(220, 169, 139, 0.06); /* subtle tinted overlay */

  --color-border:         rgba(220, 169, 139, 0.15);
  --color-border-strong:  rgba(220, 169, 139, 0.35);
  --color-border-focus:   var(--color-fur-dark);

  --color-text-primary:   var(--color-cream);
  --color-text-secondary: var(--color-fur-light);
  --color-text-muted:     var(--color-pelt);
  --color-text-accent:    var(--color-fur-dark);
  --color-text-on-accent: var(--color-midnight);

  --color-accent:         var(--color-fur-dark);
  --color-accent-hover:   #e8b896;
  --color-accent-active:  #c8946f;
  --color-accent-subtle:  rgba(220, 169, 139, 0.12);
  --color-accent-glow:    rgba(220, 169, 139, 0.25);

  --color-success:        #7ecb8f;
  --color-warning:        #e5b55a;
  --color-error:          #e57373;
  --color-info:           #7eb5e5;

  /* --- Typography --- */
  --font-display:   'Playfair Display', 'Georgia', serif;
  --font-body:      'Nunito', 'Segoe UI', sans-serif;
  --font-mono:      'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-ui:        'Nunito', 'Segoe UI', sans-serif;

  --font-size-xs:   0.75rem;    /* 12px */
  --font-size-sm:   0.875rem;   /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-md:   1.125rem;   /* 18px */
  --font-size-lg:   1.25rem;    /* 20px */
  --font-size-xl:   1.5rem;     /* 24px */
  --font-size-2xl:  2rem;       /* 32px */
  --font-size-3xl:  2.75rem;    /* 44px */
  --font-size-4xl:  3.75rem;    /* 60px */
  --font-size-5xl:  5rem;       /* 80px */

  --font-weight-light:   300;
  --font-weight-regular: 400;
  --font-weight-medium:  500;
  --font-weight-semibold:600;
  --font-weight-bold:    700;
  --font-weight-black:   900;

  --line-height-tight:  1.15;
  --line-height-snug:   1.35;
  --line-height-base:   1.6;
  --line-height-loose:  1.85;

  --letter-spacing-tight: -0.03em;
  --letter-spacing-base:   0em;
  --letter-spacing-wide:   0.05em;
  --letter-spacing-wider:  0.1em;
  --letter-spacing-caps:   0.15em;

  /* --- Border Radius --- */
  --radius-none:   0px;
  --radius-xs:     4px;
  --radius-sm:     8px;
  --radius-md:     12px;
  --radius-lg:     16px;
  --radius-xl:     24px;
  --radius-2xl:    32px;
  --radius-pill:   9999px;
  --radius-circle: 50%;

  /* Adwaita-inspired component radius */
  --radius-card:    var(--radius-lg);
  --radius-button:  var(--radius-md);
  --radius-input:   var(--radius-md);
  --radius-badge:   var(--radius-pill);
  --radius-chip:    var(--radius-sm);
  --radius-dialog:  var(--radius-xl);
  --radius-tooltip: var(--radius-sm);

  /* --- Spacing Scale --- */
  --space-1:   0.25rem;   /* 4px */
  --space-2:   0.5rem;    /* 8px */
  --space-3:   0.75rem;   /* 12px */
  --space-4:   1rem;      /* 16px */
  --space-5:   1.25rem;   /* 20px */
  --space-6:   1.5rem;    /* 24px */
  --space-8:   2rem;      /* 32px */
  --space-10:  2.5rem;    /* 40px */
  --space-12:  3rem;      /* 48px */
  --space-16:  4rem;      /* 64px */
  --space-20:  5rem;      /* 80px */
  --space-24:  6rem;      /* 96px */
  --space-32:  8rem;      /* 128px */
  --space-40: 10rem;      /* 160px */

  /* --- Shadows (Material-ish, warm-tinted) --- */
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md:   0 4px 12px rgba(0,0,0,0.5), 0 2px 4px rgba(0,0,0,0.3);
  --shadow-lg:   0 8px 24px rgba(0,0,0,0.6), 0 4px 8px rgba(0,0,0,0.3);
  --shadow-xl:   0 16px 48px rgba(0,0,0,0.7), 0 8px 16px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 24px var(--color-accent-glow), 0 0 8px rgba(220,169,139,0.15);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.4), 0 0 0 1px var(--color-border);

  /* --- Transitions --- */
  --transition-fast:   100ms ease;
  --transition-base:   200ms ease;
  --transition-slow:   350ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* --- Layout --- */
  --container-xs:   480px;
  --container-sm:   640px;
  --container-md:   768px;
  --container-lg:   1024px;
  --container-xl:   1280px;
  --container-2xl:  1440px;
  --container-full: 100%;

  --nav-height:     64px;
  --sidebar-width:  260px;
  --section-gap:    var(--space-24);
  --content-gap:    var(--space-16);

  /* --- Z-index layers --- */
  --z-below:    -1;
  --z-base:      0;
  --z-raised:    10;
  --z-dropdown:  100;
  --z-sticky:    200;
  --z-overlay:   300;
  --z-modal:     400;
  --z-toast:     500;
  --z-tooltip:   600;
}


/* ============================================================
   2. RESET & BASE
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-base);
}
a:hover { color: var(--color-accent-hover); }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
}

code, pre, kbd, samp {
  font-family: var(--font-mono);
}

::selection {
  background: var(--color-accent-subtle);
  color: var(--color-fur-light);
}

:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}


/* ============================================================
   3. LAYOUT — CONTAINER & GRID
   ============================================================ */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.container--sm  { max-width: var(--container-sm); }
.container--md  { max-width: var(--container-md); }
.container--lg  { max-width: var(--container-lg); }
.container--2xl { max-width: var(--container-2xl); }
.container--full { max-width: var(--container-full); }

/* Grid utility */
.grid {
  display: grid;
  gap: var(--space-6);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--auto-sm { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.grid--auto-md { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.grid--auto-lg { grid-template-columns: repeat(auto-fill, minmax(400px, 1fr)); }

/* Flex utility */
.flex         { display: flex; }
.flex--center { display: flex; align-items: center; justify-content: center; }
.flex--between{ display: flex; align-items: center; justify-content: space-between; }
.flex--col    { display: flex; flex-direction: column; }
.flex--gap    { gap: var(--space-4); }
.flex--wrap   { flex-wrap: wrap; }


/* ============================================================
   4. NAVIGATION BAR
   Adwaita-style: clean, translucent, pill-nav
   ============================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--nav-height);

  display: flex;
  align-items: center;

  background: rgba(10, 8, 5, 0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--color-border);

  transition: background var(--transition-slow), box-shadow var(--transition-slow);
}

.navbar--scrolled {
  background: rgba(10, 8, 5, 0.92);
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Logo / Wordmark */
.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar__logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.navbar__wordmark {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  transition: color var(--transition-base);
}
.navbar__wordmark span {
  color: var(--color-accent);
}
.navbar__brand:hover .navbar__wordmark {
  color: var(--color-fur-light);
}

/* Navigation links — pill cluster (Adwaita-inspired) */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);

  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: var(--space-1) var(--space-2);
}

.navbar__link {
  font-family: var(--font-ui);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  transition: color var(--transition-base), background var(--transition-base);
  white-space: nowrap;
}

.navbar__link:hover {
  color: var(--color-text-secondary);
  background: var(--color-bg-overlay);
}

.navbar__link--active,
.navbar__link[aria-current="page"] {
  color: var(--color-text-on-accent);
  background: var(--color-accent);
  font-weight: var(--font-weight-semibold);
}
.navbar__link--active:hover {
  background: var(--color-accent-hover);
  color: var(--color-midnight);
}

/* Navbar actions */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Mobile hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  transition: background var(--transition-base);
}
.navbar__hamburger:hover { background: var(--color-bg-overlay); }

.navbar__hamburger-line {
  width: 22px;
  height: 2px;
  background: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Mobile nav drawer */
.navbar__drawer {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(13, 10, 7, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
  flex-direction: column;
  gap: var(--space-2);
  z-index: var(--z-dropdown);
}
.navbar__drawer--open { display: flex; }

.navbar__drawer-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: color var(--transition-base), background var(--transition-base);
}
.navbar__drawer-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-overlay);
}


/* ============================================================
   5. SECTIONS — PAGE STRUCTURE
   ============================================================ */

/* Body offset for fixed nav */
.page-body {
  padding-top: var(--nav-height);
}

/* Generic section base */
.section {
  padding-block: var(--section-gap);
}
.section--sm { padding-block: var(--space-12); }
.section--lg { padding-block: var(--space-32); }
.section--xl { padding-block: var(--space-40); }

/* Section with subtle tint */
.section--tinted {
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Section with gradient */
.section--gradient {
  background: linear-gradient(
    180deg,
    var(--color-bg-base) 0%,
    var(--color-bg-surface) 50%,
    var(--color-bg-base) 100%
  );
}

/* --- HERO SECTION --- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-block: var(--space-32) var(--space-20);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: var(--z-below);
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(220,169,139,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(135,117,99,0.06) 0%, transparent 60%),
    var(--color-bg-base);
}

/* Decorative ferret pawprint scatter (use with ::before/::after or JS) */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle 2px at 15% 25%, rgba(220,169,139,0.2) 0%, transparent 100%),
    radial-gradient(circle 1px at 75% 65%, rgba(220,169,139,0.15) 0%, transparent 100%),
    radial-gradient(circle 1.5px at 45% 85%, rgba(135,117,99,0.2) 0%, transparent 100%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: var(--z-base);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-ui);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-caps);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.6;
}

.hero__title {
  font-size: clamp(var(--font-size-3xl), 7vw, var(--font-size-5xl));
  font-weight: var(--font-weight-black);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--space-6);
}

.hero__title-accent { color: var(--color-accent); }

.hero__subtitle {
  font-size: clamp(var(--font-size-md), 2vw, var(--font-size-xl));
  color: var(--color-text-muted);
  line-height: var(--line-height-base);
  max-width: 56ch;
  margin-bottom: var(--space-10);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero__image-wrap {
  position: relative;
}

.hero__image-wrap::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-accent-glow), transparent 60%);
  z-index: var(--z-below);
  filter: blur(24px);
}

/* --- FEATURES SECTION --- */
.features {
  padding-block: var(--section-gap);
}

.features__header {
  text-align: center;
  margin-bottom: var(--space-16);
  max-width: 60ch;
  margin-inline: auto;
}

/* --- ABOUT / INTRO SECTION --- */
.about {
  padding-block: var(--section-gap);
}

.about__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

/* --- DOWNLOAD SECTION --- */
.download {
  padding-block: var(--section-gap);
  text-align: center;
}

.download__options-packages {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-10);
}
.download__options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-10);
}

/* --- SHOWCASE / SCREENSHOTS SECTION --- */
.showcase {
  padding-block: var(--section-gap);
  overflow: hidden;
}

.showcase__track {
  display: flex;
  gap: var(--space-6);
  overflow-x: auto;
  padding-bottom: var(--space-4);
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  scroll-snap-type: x mandatory;
}
.showcase__track::-webkit-scrollbar { height: 4px; }
.showcase__track::-webkit-scrollbar-track { background: transparent; }
.showcase__track::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: var(--radius-pill); }

.showcase__item {
  flex: 0 0 auto;
  width: min(520px, 80vw);
  scroll-snap-align: start;
}

/* --- COMMUNITY SECTION --- */
.community {
  padding-block: var(--section-gap);
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* --- CHANGELOG / NEWS SECTION --- */
.changelog {
  padding-block: var(--section-gap);
}

.changelog__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: var(--container-md);
}

/* --- FAQ SECTION --- */
.faq {
  padding-block: var(--section-gap);
}

.faq__list {
  max-width: var(--container-md);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* --- SPONSORS / THANKS SECTION --- */
.sponsors {
  padding-block: var(--space-16);
  text-align: center;
}

.sponsors__grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
  margin-top: var(--space-8);
  opacity: 0.6;
  filter: grayscale(0.4);
  transition: opacity var(--transition-base), filter var(--transition-base);
}
.sponsors__grid:hover {
  opacity: 0.9;
  filter: grayscale(0);
}


/* ============================================================
   6. SECTION HEADERS (reusable)
   ============================================================ */

.section-header {
  margin-bottom: var(--space-12);
}
.section-header--center { text-align: center; margin-inline: auto; }
.section-header--narrow { max-width: 56ch; }

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-caps);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-snug);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  line-height: var(--line-height-loose);
  max-width: 60ch;
}


/* ============================================================
   7. CARDS
   Adwaita-inspired: rounded, warm border, subtle glass
   ============================================================ */

.card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

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

/* Card variants */
.card--flat {
  box-shadow: none;
  background: var(--color-bg-elevated);
}

.card--glass {
  background: rgba(30, 24, 16, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.card--accent {
  border-color: var(--color-border-strong);
  background: linear-gradient(135deg, var(--color-bg-elevated) 0%, rgba(220,169,139,0.05) 100%);
}

.card--accent:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--color-accent-subtle);
}

/* Feature card */
.feature-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: var(--space-6) var(--space-8);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.feature-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-accent-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  font-size: 1.5rem;
}

.feature-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  font-family: var(--font-ui);
}

.feature-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-base);
}

/* Download card */
.download-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  text-align: left;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.download-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

/* Compact card variant for packages */
.download__options-packages .download-card {
  padding: var(--space-3) var(--space-4);
  gap: var(--space-2);
}

.download__options-packages .download-card__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
}

.download__options-packages .download-card__name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
}

.download__options-packages .download-card__arch {
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

.download__options-packages .download-card__item {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.download__options-packages .download-card__summary {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: var(--line-height-snug);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.download__options-packages .download-card__btn {
  align-self: center;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.download-card__btn-content {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.download__options-packages .download-card__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.download-card__label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-caps);
  text-transform: uppercase;
  color: var(--color-accent);
}

.download-card__name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-display);
}

.download-card__meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Screenshot card */
.screenshot-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}
.screenshot-card:hover {
  transform: scale(1.02) translateY(-4px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.screenshot-card img {
  width: 100%;
  height: auto;
  display: block;
}

/* Changelog entry card */
.changelog-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.changelog-card__version {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  font-weight: var(--font-weight-semibold);
}

.changelog-card__date {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.changelog-card__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-ui);
}

/* Stat / metric card */
.stat-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: var(--space-6);
  text-align: center;
}

.stat-card__number {
  font-family: var(--font-display);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-black);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-card__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}


/* ============================================================
   8. BUTTONS
   Adwaita + Material blend: rounded, elevated, haptic feel
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-ui);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  outline: none;
  text-decoration: none;
  border-radius: var(--radius-button);
  padding: var(--space-3) var(--space-6);
  transition: background var(--transition-base), color var(--transition-base),
              box-shadow var(--transition-base), transform var(--transition-fast);
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.97);
}

/* Primary — filled accent */
.btn--primary {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  box-shadow: 0 2px 8px rgba(220,169,139,0.3);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-midnight);
  box-shadow: 0 4px 16px rgba(220,169,139,0.4);
}
.btn--primary:active { background: var(--color-accent-active); }

/* Secondary — outlined */
.btn--secondary {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-strong);
}
.btn--secondary:hover {
  background: var(--color-bg-elevated);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Ghost — minimal */
.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
}
.btn--ghost:hover {
  background: var(--color-bg-overlay);
  color: var(--color-text-primary);
}

/* Danger */
.btn--danger {
  background: var(--color-error);
  color: #fff;
}
.btn--danger:hover { filter: brightness(1.1); }

/* Sizes */
.btn--xs { font-size: var(--font-size-xs); padding: var(--space-1) var(--space-3); border-radius: var(--radius-sm); }
.btn--sm { font-size: var(--font-size-sm); padding: var(--space-2) var(--space-4); }
.btn--lg { font-size: var(--font-size-base); padding: var(--space-4) var(--space-8); border-radius: var(--radius-lg); }
.btn--xl { font-size: var(--font-size-md); padding: var(--space-5) var(--space-10); border-radius: var(--radius-lg); }

/* Icon-only */
.btn--icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-circle);
}
.btn--icon-sm { width: 32px; height: 32px; }

/* Pill shape */
.btn--pill { border-radius: var(--radius-pill); }

/* Disabled */
.btn:disabled,
.btn--disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* Loading state */
.btn--loading::after {
  content: '';
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: var(--radius-circle);
  animation: ferret-spin 0.6s linear infinite;
  margin-left: var(--space-2);
}


/* ============================================================
   9. BADGES & CHIPS
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-ui);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-badge);
  line-height: 1.4;
}

.badge--accent   { background: var(--color-accent-subtle); color: var(--color-accent); }
.badge--success  { background: rgba(126,203,143,0.12); color: var(--color-success); }
.badge--warning  { background: rgba(229,181,90,0.12);  color: var(--color-warning); }
.badge--error    { background: rgba(229,115,115,0.12); color: var(--color-error); }
.badge--muted    { background: var(--color-bg-elevated); color: var(--color-text-muted); }
.badge--outline  { background: transparent; border: 1px solid currentColor; color: var(--color-accent); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-chip);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  transition: border-color var(--transition-base), color var(--transition-base), background var(--transition-base);
}
.chip:hover, .chip--active {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-subtle);
}


/* ============================================================
   10. ACCORDION / FAQ
   ============================================================ */

.accordion-item {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-base);
}
.accordion-item:hover { border-color: var(--color-border-strong); }
.accordion-item--open { border-color: var(--color-accent); }

.accordion-trigger {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  font-family: var(--font-ui);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-align: left;
  transition: color var(--transition-base);
}
.accordion-trigger:hover { color: var(--color-accent); }

.accordion-chevron {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}
.accordion-item--open .accordion-chevron {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}
.accordion-item--open .accordion-content {
  max-height: 800px;
}

.accordion-body {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-loose);
}


/* ============================================================
   11. FOOTER
   ============================================================ */

.footer {
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__brand .navbar__wordmark {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

.footer__brand p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-base);
  max-width: 36ch;
}

.footer__col-title {
  font-family: var(--font-ui);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-caps);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}
.footer__link:hover { color: var(--color-accent); }

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer__legal {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-base), color var(--transition-base), background var(--transition-base);
}
.footer__social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-subtle);
}


/* ============================================================
   12. FORM ELEMENTS
   ============================================================ */

.input-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.input {
  width: 100%;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  outline: none;
}

.input::placeholder { color: var(--color-text-muted); }

.input:hover { border-color: var(--color-border-strong); }
.input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

.input--error { border-color: var(--color-error); }
.input-hint { font-size: var(--font-size-xs); color: var(--color-text-muted); margin-top: var(--space-1); }
.input-error-msg { font-size: var(--font-size-xs); color: var(--color-error); margin-top: var(--space-1); }

.input-group {
  display: flex;
  gap: var(--space-3);
}
.input-group .input { flex: 1; }


/* ============================================================
   13. CODE BLOCKS
   ============================================================ */

.code-block {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.code-block__dots {
  display: flex;
  gap: 6px;
}
.code-block__dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-circle);
}
.code-block__dot--red    { background: #e57373; }
.code-block__dot--yellow { background: var(--color-warning); }
.code-block__dot--green  { background: var(--color-success); }

.code-block__lang {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.code-block__body {
  padding: var(--space-5) var(--space-6);
  overflow-x: auto;
}

code {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-fur-light);
  line-height: var(--line-height-loose);
}

/* Inline code */
:not(pre) > code {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  padding: 0.1em 0.35em;
  font-size: 0.875em;
  color: var(--color-accent);
}


/* ============================================================
   14. DIVIDERS & SEPARATORS
   ============================================================ */

.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  border: none;
  margin-block: var(--space-8);
}

.divider--accent {
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.4;
}

.divider--labeled {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}
.divider--labeled::before,
.divider--labeled::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}


/* ============================================================
   15. ALERTS & NOTIFICATIONS
   ============================================================ */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-base);
}

.alert--info    { background: rgba(126,181,229,0.08); border-color: rgba(126,181,229,0.25); color: var(--color-info);    }
.alert--success { background: rgba(126,203,143,0.08); border-color: rgba(126,203,143,0.25); color: var(--color-success); }
.alert--warning { background: rgba(229,181,90,0.08);  border-color: rgba(229,181,90,0.25);  color: var(--color-warning); }
.alert--error   { background: rgba(229,115,115,0.08); border-color: rgba(229,115,115,0.25); color: var(--color-error);   }

.alert__icon { flex-shrink: 0; font-size: 1.1em; margin-top: 1px; }
.alert__body { flex: 1; }
.alert__title { font-weight: var(--font-weight-semibold); margin-bottom: var(--space-1); }


/* ============================================================
   16. UTILITY CLASSES
   ============================================================ */

/* Display */
.d-none   { display: none; }
.d-block  { display: block; }
.d-flex   { display: flex; }
.d-grid   { display: grid; }
.d-inline { display: inline; }
.d-inline-flex { display: inline-flex; }

/* Text alignment */
.text-left   { text-align: left; }
.text-center { text-align: center; }
.text-right  { text-align: right; }

/* Font sizes */
.text-xs   { font-size: var(--font-size-xs); }
.text-sm   { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-md   { font-size: var(--font-size-md); }
.text-lg   { font-size: var(--font-size-lg); }
.text-xl   { font-size: var(--font-size-xl); }
.text-2xl  { font-size: var(--font-size-2xl); }
.text-3xl  { font-size: var(--font-size-3xl); }

/* Text colors */
.text-primary   { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted     { color: var(--color-text-muted); }
.text-accent    { color: var(--color-accent); }

/* Font weights */
.font-light    { font-weight: var(--font-weight-light); }
.font-regular  { font-weight: var(--font-weight-regular); }
.font-medium   { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold     { font-weight: var(--font-weight-bold); }
.font-black    { font-weight: var(--font-weight-black); }

/* Font families */
.font-display { font-family: var(--font-display); }
.font-mono    { font-family: var(--font-mono); }
.font-ui      { font-family: var(--font-ui); }

/* Spacing helpers */
.mt-auto { margin-top: auto; }
.mb-auto { margin-bottom: auto; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-inline: auto; }

/* Border radius */
.rounded-sm  { border-radius: var(--radius-sm); }
.rounded-md  { border-radius: var(--radius-md); }
.rounded-lg  { border-radius: var(--radius-lg); }
.rounded-xl  { border-radius: var(--radius-xl); }
.rounded-pill{ border-radius: var(--radius-pill); }

/* Width/height */
.w-full  { width: 100%; }
.h-full  { height: 100%; }
.w-screen  { width: 100vw; }
.h-screen  { height: 100vh; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto   { overflow: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.sticky   { position: sticky; }
.fixed    { position: fixed; }

/* Opacity */
.opacity-50  { opacity: 0.5; }
.opacity-75  { opacity: 0.75; }
.opacity-0   { opacity: 0; }
.opacity-100 { opacity: 1; }

/* Visually hidden (accessible) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* ============================================================
   17. ANIMATIONS
   ============================================================ */

@keyframes ferret-spin {
  to { transform: rotate(360deg); }
}

@keyframes ferret-fade-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes ferret-slide-in {
  from { opacity: 0; transform: translateX(-16px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes ferret-scale-in {
  from { opacity: 0; transform: scale(0.94); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes ferret-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

@keyframes ferret-bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* Animation utility classes */
.animate-fade-in   { animation: ferret-fade-in  0.5s var(--transition-slow) both; }
.animate-slide-in  { animation: ferret-slide-in 0.4s ease both; }
.animate-scale-in  { animation: ferret-scale-in 0.3s ease both; }
.animate-pulse     { animation: ferret-pulse    2s ease-in-out infinite; }
.animate-bounce    { animation: ferret-bounce   1.5s ease-in-out infinite; }
.animate-spin      { animation: ferret-spin     1s linear infinite; }

/* Stagger helpers */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }


/* ============================================================
   18. RESPONSIVE — BREAKPOINTS
   ============================================================ */

/* Tablet (≤ 1024px) */
@media (max-width: 1024px) {
  :root {
    --section-gap: var(--space-20);
    --content-gap: var(--space-12);
  }

  .navbar__nav { display: none; }
  .navbar__hamburger { display: flex; }

  .footer__grid { grid-template-columns: 1fr 1fr; }

  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }

  .about__split { grid-template-columns: 1fr; gap: var(--space-10); }
}

/* Mobile (≤ 640px) */
@media (max-width: 640px) {
  :root {
    --nav-height: 56px;
    --section-gap: var(--space-16);
    --content-gap: var(--space-8);
  }

  .container { padding-inline: var(--space-4); }

  .hero { min-height: auto; padding-block: var(--space-20) var(--space-12); }
  .hero__actions { flex-direction: column; align-items: stretch; }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }

  .footer__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; text-align: center; }

  .btn--xl { font-size: var(--font-size-base); padding: var(--space-4) var(--space-6); }

  .section-title { font-size: var(--font-size-2xl); }
}

/* Large (≥ 1440px) */
@media (min-width: 1440px) {
  :root {
    --section-gap: var(--space-32);
    --content-gap: var(--space-20);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}