/* =========================================================
   HowToUnzip.com — Design System
   Navy + Gold Editorial · Light & Dark · WCAG 2.1 AA
   ========================================================= */

:root, [data-theme="light"] {
  /* Core palette — Navy + Gold editorial */
  --color-navy: #0F1C38;           /* Primary deep navy */
  --color-navy-2: #1A2A4A;         /* Lighter navy for accents */
  --color-navy-soft: #2A3A5C;
  --color-accent: #C9A84C;         /* Editorial gold */
  --color-accent-hover: #B5932E;
  --color-accent-soft: #E9D89C;
  --color-accent-bg: #FBF5DD;

  /* Surfaces */
  --color-bg: #FAF7F1;             /* Warm cream */
  --color-surface: #FFFFFF;        /* Card white */
  --color-surface-2: #F5F1E8;      /* Subtle section tint */
  --color-surface-offset: #EDE7D7;

  /* Text */
  --color-text: #1F2434;           /* Body — 14.8:1 on bg */
  --color-text-muted: #54596B;     /* Muted — 6.9:1 on bg */
  --color-text-faint: #858A99;
  --color-heading: #0F1C38;        /* Navy headings */
  --color-text-inverse: #FAF7F1;

  /* Borders & dividers */
  --color-border: #E2DCC9;
  --color-border-strong: #CEC5AC;
  --color-divider: #EDE7D7;

  /* Semantic */
  --color-link: #0A5E9E;           /* 6.8:1 on cream */
  --color-link-hover: #073F6B;
  --color-success: #1F6E3D;
  --color-warning: #A85A1A;
  --color-error: #9C2436;

  /* Callout surfaces */
  --color-note-bg: #EAF3FA;
  --color-note-border: #0A5E9E;
  --color-warn-bg: #FBF0E0;
  --color-warn-border: #A85A1A;
  --color-tip-bg: #FBF5DD;
  --color-tip-border: #C9A84C;

  /* Fonts */
  --font-display: "Fraunces", "Playfair Display", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.25vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.2vw, 1.0625rem);
  --text-md: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
  --text-lg: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1vw, 2rem);
  --text-2xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.75rem);
  --text-3xl: clamp(2.25rem, 1.5rem + 3vw, 3.75rem);
  --text-hero: clamp(2.5rem, 1.75rem + 3.5vw, 4.25rem);

  /* Spacing (4px base) */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows — tone-matched to warm surfaces */
  --shadow-xs: 0 1px 2px rgba(15, 28, 56, 0.06);
  --shadow-sm: 0 2px 6px rgba(15, 28, 56, 0.06);
  --shadow-md: 0 8px 24px -8px rgba(15, 28, 56, 0.12);
  --shadow-lg: 0 24px 48px -12px rgba(15, 28, 56, 0.18);

  /* Widths */
  --content-narrow: 640px;
  --content-article: 720px;
  --content-default: 1080px;
  --content-wide: 1240px;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 180ms;
  --t-mid: 260ms;
}

/* ===== DARK MODE ===== */
[data-theme="dark"] {
  --color-navy: #0A1224;
  --color-navy-2: #141E38;
  --color-navy-soft: #1E2A44;
  --color-accent: #E6C66C;           /* Brighter gold for dark surfaces */
  --color-accent-hover: #F0D588;
  --color-accent-soft: #8B6F1F;
  --color-accent-bg: #2A2414;

  --color-bg: #0E1524;
  --color-surface: #162033;
  --color-surface-2: #1A2438;
  --color-surface-offset: #1F2A40;

  --color-text: #E8EAF0;              /* 13:1 on bg */
  --color-text-muted: #A8B0C4;        /* 7.2:1 */
  --color-text-faint: #6F788C;
  --color-heading: #F5F0DC;
  --color-text-inverse: #0E1524;

  --color-border: #2A3651;
  --color-border-strong: #3D4A68;
  --color-divider: #253250;

  --color-link: #7DB8E8;               /* 7:1 on dark bg */
  --color-link-hover: #A6D0F2;
  --color-success: #78D28F;
  --color-warning: #F0B86A;
  --color-error: #F08194;

  --color-note-bg: #132537;
  --color-note-border: #4A8FC8;
  --color-warn-bg: #2A1F12;
  --color-warn-border: #D89853;
  --color-tip-bg: #2A2414;
  --color-tip-border: #E6C66C;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 10px 28px -8px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 56px -12px rgba(0, 0, 0, 0.6);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-navy: #0A1224;
    --color-navy-2: #141E38;
    --color-navy-soft: #1E2A44;
    --color-accent: #E6C66C;
    --color-accent-hover: #F0D588;
    --color-accent-soft: #8B6F1F;
    --color-accent-bg: #2A2414;
    --color-bg: #0E1524;
    --color-surface: #162033;
    --color-surface-2: #1A2438;
    --color-surface-offset: #1F2A40;
    --color-text: #E8EAF0;
    --color-text-muted: #A8B0C4;
    --color-text-faint: #6F788C;
    --color-heading: #F5F0DC;
    --color-text-inverse: #0E1524;
    --color-border: #2A3651;
    --color-border-strong: #3D4A68;
    --color-divider: #253250;
    --color-link: #7DB8E8;
    --color-link-hover: #A6D0F2;
    --color-note-bg: #132537;
    --color-warn-bg: #2A1F12;
    --color-tip-bg: #2A2414;
  }
}

/* =========================================================
   LAYOUT PRIMITIVES
   ========================================================= */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}
.container-default { max-width: var(--content-default); }
.container-article { max-width: var(--content-article); }
.container-narrow { max-width: var(--content-narrow); }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 92%, transparent);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 72px;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-heading);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.site-logo:hover { text-decoration: none; }
.site-logo__mark {
  width: 36px; height: 36px;
  flex: 0 0 36px;
  color: var(--color-accent);
}
.site-logo__name { color: var(--color-heading); }
.site-logo__dot { color: var(--color-accent); font-weight: 500; }
.site-logo__tld { color: var(--color-text-muted); font-weight: 400; }

.site-nav { display: flex; align-items: center; gap: var(--space-1); }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}
.site-nav__link {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  position: relative;
}
.site-nav__link:hover {
  color: var(--color-heading);
  background: var(--color-surface-2);
}
.site-nav__link[aria-current="page"] {
  color: var(--color-heading);
}
.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: var(--space-4); right: var(--space-4);
  bottom: 2px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  background: transparent;
}
.theme-toggle:hover {
  color: var(--color-heading);
  background: var(--color-surface-2);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  align-items: center;
  justify-content: center;
}
.nav-toggle:hover { background: var(--color-surface-2); }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: 72px;
    left: 0; right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: var(--space-4);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform 200ms var(--ease), opacity 200ms var(--ease);
  }
  .site-nav[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }
  .site-nav__link {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
  }
  .site-nav__link[aria-current="page"]::after { display: none; }
  .site-nav__link[aria-current="page"] {
    background: var(--color-accent-bg);
    color: var(--color-heading);
  }
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  background: linear-gradient(180deg, var(--color-navy) 0%, var(--color-navy-2) 100%);
  color: var(--color-text-inverse);
  padding-block: clamp(3rem, 8vw, 6rem);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 60% 40% at 80% 10%, rgba(201,168,76,0.10), transparent 60%),
    radial-gradient(ellipse 50% 40% at 15% 90%, rgba(201,168,76,0.06), transparent 60%);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 1; max-width: 820px; }
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(201,168,76,0.12);
  border: 1px solid rgba(201,168,76,0.35);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}
.hero__eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}
.hero h1 {
  font-size: var(--text-hero);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: #FDFBF2;
  margin-bottom: var(--space-5);
}
.hero h1 em {
  font-style: italic;
  color: var(--color-accent);
  font-weight: 500;
}
.hero__lede {
  font-size: var(--text-md);
  line-height: 1.55;
  color: rgba(253, 251, 242, 0.82);
  max-width: 62ch;
  margin-bottom: var(--space-8);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Interior page hero (smaller) */
.page-hero {
  background: linear-gradient(180deg, var(--color-navy) 0%, var(--color-navy-2) 100%);
  color: var(--color-text-inverse);
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(ellipse 50% 40% at 85% 20%, rgba(201,168,76,0.08), transparent 60%);
  pointer-events: none;
}
.page-hero__inner { position: relative; z-index: 1; max-width: 760px; }
.page-hero .breadcrumbs {
  margin-bottom: var(--space-4);
  color: rgba(253, 251, 242, 0.65);
}
.page-hero .breadcrumbs a { color: var(--color-accent); }
.page-hero .breadcrumbs a:hover { color: var(--color-accent-hover); }
.page-hero .breadcrumbs [aria-current="page"] { color: rgba(253, 251, 242, 0.85); font-weight: 500; }
.page-hero h1 {
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #FDFBF2;
  margin-bottom: var(--space-4);
}
.page-hero__lede {
  font-size: var(--text-md);
  color: rgba(253, 251, 242, 0.82);
  max-width: 60ch;
}
.page-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: rgba(253, 251, 242, 0.7);
}
.page-hero__meta > span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.page-hero__meta svg { color: var(--color-accent); }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  min-height: 44px;
  border: 1px solid transparent;
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-navy);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}
.btn-secondary {
  background: transparent;
  color: #FDFBF2;
  border-color: rgba(253, 251, 242, 0.35);
}
.btn-secondary:hover {
  background: rgba(253, 251, 242, 0.08);
  border-color: rgba(253, 251, 242, 0.55);
  text-decoration: none;
}
.btn-ghost {
  background: transparent;
  color: var(--color-heading);
  border-color: var(--color-border-strong);
}
.btn-ghost:hover {
  background: var(--color-surface-2);
  border-color: var(--color-heading);
  text-decoration: none;
}
.btn svg { flex-shrink: 0; }

/* =========================================================
   LAYOUT — Main content + Sidebar
   ========================================================= */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: clamp(3rem, 6vw, 5rem);
  align-items: start;
}
.page-main { min-width: 0; }

.sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (max-width: 980px) {
  .page-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

/* =========================================================
   TOC (table of contents sidebar)
   ========================================================= */
.toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.toc__title {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.toc__list { list-style: none; }
.toc__list li { margin-bottom: var(--space-1); }
.toc__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  text-decoration: none;
}
.toc__link:hover {
  color: var(--color-heading);
  background: var(--color-surface-2);
  text-decoration: none;
}
.toc__link.is-active {
  color: var(--color-heading);
  font-weight: 600;
  border-left-color: var(--color-accent);
  background: var(--color-accent-bg);
}

/* =========================================================
   ARTICLE / CONTENT TYPOGRAPHY
   ========================================================= */
.prose {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.7;
  max-width: 68ch;
}
.prose > * + * { margin-top: var(--space-5); }

.prose h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-heading);
  margin-top: var(--space-16) !important;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
  scroll-margin-top: 96px;
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
}
.prose h2:first-child { margin-top: 0 !important; border-top: none; padding-top: 0; }
.prose h2 .step-num {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-navy);
  background: var(--color-accent);
  border-radius: var(--radius-full);
  letter-spacing: 0;
}

.prose h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-heading);
  margin-top: var(--space-10) !important;
  scroll-margin-top: 96px;
}

.prose h4 {
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--color-heading);
  margin-top: var(--space-8) !important;
}

.prose p { max-width: 68ch; }
.prose ul, .prose ol {
  padding-left: var(--space-6);
  max-width: 68ch;
}
.prose li { margin-bottom: var(--space-2); }
.prose li::marker { color: var(--color-accent); }
.prose strong { color: var(--color-heading); font-weight: 700; }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-surface-2);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  color: var(--color-heading);
}

.prose blockquote {
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  color: var(--color-text);
  font-style: italic;
  position: relative;
}

.prose a {
  color: var(--color-link);
  font-weight: 500;
}

.prose .lede {
  font-size: var(--text-md);
  line-height: 1.6;
  color: var(--color-text-muted);
  max-width: 62ch;
}

/* =========================================================
   CALLOUTS
   ========================================================= */
.callout {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid;
  font-size: var(--text-base);
  line-height: 1.6;
}
.callout__icon {
  flex: 0 0 24px;
  width: 24px; height: 24px;
  margin-top: 2px;
}
.callout__body { flex: 1; min-width: 0; }
.callout__title {
  display: block;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-1);
}
.callout--note {
  background: var(--color-note-bg);
  border-color: color-mix(in oklab, var(--color-note-border) 30%, transparent);
}
.callout--note .callout__icon { color: var(--color-note-border); }
.callout--warn {
  background: var(--color-warn-bg);
  border-color: color-mix(in oklab, var(--color-warn-border) 30%, transparent);
}
.callout--warn .callout__icon { color: var(--color-warn-border); }
.callout--tip {
  background: var(--color-tip-bg);
  border-color: color-mix(in oklab, var(--color-tip-border) 40%, transparent);
}
.callout--tip .callout__icon { color: var(--color-tip-border); }

/* =========================================================
   STEP CARDS (numbered step list)
   ========================================================= */
.steps {
  list-style: none;
  padding-left: 0 !important;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.steps > li {
  position: relative;
  padding: var(--space-5) var(--space-5) var(--space-5) calc(var(--space-12) + var(--space-5));
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  counter-increment: step;
}
.steps > li::before {
  content: counter(step);
  position: absolute;
  left: var(--space-5);
  top: var(--space-5);
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-navy);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
}
.steps > li > strong:first-child {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-md);
  color: var(--color-heading);
  margin-bottom: var(--space-2);
}

/* =========================================================
   TABS (OS switcher)
   ========================================================= */
.tabs {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tabs__list {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-2);
  padding: var(--space-2);
  gap: var(--space-1);
}
.tabs__btn {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}
.tabs__btn:hover { color: var(--color-heading); background: var(--color-surface); }
.tabs__btn[aria-selected="true"] {
  color: var(--color-navy);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
[data-theme="dark"] .tabs__btn[aria-selected="true"] { color: var(--color-accent); }
.tabs__panel {
  padding: var(--space-8);
  display: none;
}
.tabs__panel[aria-hidden="false"] { display: block; }
.tabs__panel > * + * { margin-top: var(--space-5); }
.tabs__panel h3:first-child { margin-top: 0 !important; }

@media (max-width: 560px) {
  .tabs__panel { padding: var(--space-5); }
}

/* =========================================================
   ACCORDION (troubleshooting)
   ========================================================= */
.accordion { display: flex; flex-direction: column; gap: var(--space-3); }
.accordion__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.accordion__item[open] { box-shadow: var(--shadow-sm); }
.accordion__summary {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-heading);
  cursor: pointer;
  list-style: none;
  min-height: 44px;
  user-select: none;
}
.accordion__summary::-webkit-details-marker { display: none; }
.accordion__summary:hover { background: var(--color-surface-2); }
.accordion__summary::after {
  content: "";
  margin-left: auto;
  width: 12px; height: 12px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease);
  flex: 0 0 12px;
}
.accordion__item[open] .accordion__summary::after {
  transform: rotate(-135deg);
  border-color: var(--color-accent);
}
.accordion__num {
  flex: 0 0 28px;
  width: 28px; height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-bg);
  color: var(--color-navy);
  font-size: var(--text-sm);
  font-weight: 700;
  border-radius: var(--radius-full);
}
[data-theme="dark"] .accordion__num { background: var(--color-accent-soft); color: var(--color-accent); }
.accordion__content {
  padding: 0 var(--space-5) var(--space-5);
  border-top: 1px solid var(--color-divider);
}
.accordion__content > * + * { margin-top: var(--space-4); }
.accordion__content > :first-child { margin-top: var(--space-4) !important; }

/* =========================================================
   TABLE
   ========================================================= */
.data-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.data-table {
  width: 100%;
  min-width: 560px;
  font-size: var(--text-sm);
}
.data-table thead {
  background: var(--color-navy);
  color: var(--color-text-inverse);
}
.data-table th {
  text-align: left;
  padding: var(--space-4);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.data-table td {
  padding: var(--space-4);
  border-top: 1px solid var(--color-divider);
  color: var(--color-text);
  vertical-align: top;
}
.data-table tbody tr:hover { background: var(--color-surface-2); }
.data-table td strong { color: var(--color-heading); }
.data-table .price-free { color: var(--color-success); font-weight: 700; }
.data-table .price-paid { color: var(--color-warning); font-weight: 700; }

/* =========================================================
   GUIDE CARD GRID (More Guides)
   ========================================================= */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-5);
  list-style: none;
}
.guide-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: inherit;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  min-height: 160px;
}
.guide-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 280ms var(--ease);
}
.guide-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}
.guide-card:hover::before { transform: scaleX(1); }
.guide-card__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-hover);
  margin-bottom: var(--space-2);
}
[data-theme="dark"] .guide-card__label { color: var(--color-accent); }
.guide-card__title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--space-2);
  line-height: 1.25;
}
.guide-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-4);
  flex: 1;
}
.guide-card__arrow {
  margin-top: auto;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
[data-theme="dark"] .guide-card__arrow { color: var(--color-accent); }
.guide-card:hover .guide-card__arrow { gap: var(--space-2); }

/* =========================================================
   SIDEBAR AFFILIATE CARD
   ========================================================= */
.promo-card {
  padding: var(--space-5);
  background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-navy-2) 100%);
  border-radius: var(--radius-lg);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}
.promo-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(ellipse 60% 40% at 20% 100%, rgba(201,168,76,0.18), transparent 60%);
  pointer-events: none;
}
.promo-card > * { position: relative; z-index: 1; }
.promo-card__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 10px;
  background: var(--color-accent);
  color: var(--color-navy);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}
.promo-card__title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 600;
  color: #FDFBF2;
  margin-bottom: var(--space-2);
}
.promo-card__desc {
  font-size: var(--text-sm);
  color: rgba(253, 251, 242, 0.75);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}
.promo-card .btn-primary {
  width: 100%;
  justify-content: center;
}
.promo-card__small {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: rgba(253, 251, 242, 0.55);
  text-align: center;
}

.sidebar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.sidebar-card__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.sidebar-card__title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--space-2);
}
.sidebar-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: var(--space-4);
}

/* =========================================================
   ADS (AdSense slots)
   ========================================================= */
.ad-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-2);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  overflow: hidden;
}
.ad-leaderboard {
  min-height: 90px;
  max-width: 728px;
  margin: 0 auto;
  padding: var(--space-4);
}
.ad-rectangle {
  min-height: 250px;
  padding: var(--space-4);
}
.ad-wrapper { margin-block: var(--space-8); }
.ad-wrapper::before {
  content: "Advertisement";
  display: block;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

/* =========================================================
   CTA BANNER
   ========================================================= */
.cta-banner {
  margin-block: var(--space-16);
  padding: clamp(2rem, 5vw, 3rem);
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-2) 100%);
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(ellipse 60% 50% at 50% 100%, rgba(201,168,76,0.16), transparent 70%);
  pointer-events: none;
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: #FDFBF2 !important;
  margin-bottom: var(--space-3) !important;
  border-top: none !important;
  padding-top: 0 !important;
  display: block !important;
}
.cta-banner p {
  color: rgba(253, 251, 242, 0.8);
  max-width: 60ch;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: var(--color-navy);
  color: rgba(253, 251, 242, 0.8);
  padding-block: var(--space-16) var(--space-8);
  margin-top: var(--space-20);
}
.site-footer a { color: rgba(253, 251, 242, 0.8); text-decoration: none; }
.site-footer a:hover { color: var(--color-accent); text-decoration: underline; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-10);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(201, 168, 76, 0.18);
}
@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-brand__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  color: #FDFBF2;
  text-decoration: none;
}
.footer-brand__logo .site-logo__mark { color: var(--color-accent); }
.footer-brand__logo span { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; color: #FDFBF2; }
.footer-brand__desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: rgba(253, 251, 242, 0.6);
  max-width: 32ch;
}
.footer-col__title {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.footer-col__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: rgba(253, 251, 242, 0.5);
}
.footer-disclosure {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(201, 168, 76, 0.12);
  font-size: var(--text-xs);
  color: rgba(253, 251, 242, 0.5);
  line-height: 1.6;
  max-width: 80ch;
}

/* =========================================================
   FAQ LIST (for articles)
   ========================================================= */
.faq-list {
  list-style: none;
  padding-left: 0 !important;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* =========================================================
   Key takeaways box
   ========================================================= */
.tl-dr {
  background: var(--color-tip-bg);
  border: 1px solid var(--color-tip-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin-bottom: var(--space-10);
}
.tl-dr__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-hover);
  margin-bottom: var(--space-3);
}
[data-theme="dark"] .tl-dr__title { color: var(--color-accent); }
.tl-dr ul {
  list-style: none;
  padding-left: 0 !important;
  margin: 0 !important;
}
.tl-dr li {
  padding-left: var(--space-6);
  position: relative;
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: var(--space-2);
  max-width: 70ch;
}
.tl-dr li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.7em;
  width: 12px; height: 2px;
  background: var(--color-accent);
}

/* =========================================================
   CHEAT SHEET
   ========================================================= */
.cheat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-6);
}
.cheat-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.cheat-card__os {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 10px;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--color-accent-bg);
  color: var(--color-accent-hover);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}
[data-theme="dark"] .cheat-card__os { color: var(--color-accent); background: var(--color-accent-soft); }
.cheat-card strong {
  display: block;
  color: var(--color-heading);
  margin-bottom: var(--space-1);
}
.cheat-card code {
  font-family: var(--font-mono);
  font-size: 0.85em;
}
.cheat-card ol, .cheat-card ul { padding-left: 0; list-style: none; margin-top: var(--space-3); }
.cheat-card li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-divider);
  font-size: var(--text-sm);
}
.cheat-card li:last-child { border-bottom: none; }

/* =========================================================
   Utility
   ========================================================= */
.eyebrow-dark {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-hover);
  margin-bottom: var(--space-3);
}
[data-theme="dark"] .eyebrow-dark { color: var(--color-accent); }

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-heading);
  margin-bottom: var(--space-4);
}
.section-lede {
  font-size: var(--text-md);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-10);
}

/* 404 page */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: var(--space-16);
}
.error-page__code {
  font-family: var(--font-display);
  font-size: clamp(6rem, 16vw, 10rem);
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}
.error-page h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-heading);
  margin-bottom: var(--space-4);
}
.error-page p {
  font-size: var(--text-md);
  color: var(--color-text-muted);
  max-width: 50ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.breadcrumbs {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  padding-left: 0;
}
.breadcrumbs li { display: inline-flex; align-items: center; gap: var(--space-2); }
.breadcrumbs li + li::before {
  content: "/";
  color: var(--color-text-faint);
}
.breadcrumbs a { color: inherit; text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-heading); text-decoration: underline; }
.breadcrumbs [aria-current="page"] { color: var(--color-heading); font-weight: 500; }

.pro-tip-inline {
  background: var(--color-tip-bg);
  border-left: 3px solid var(--color-accent);
  padding: var(--space-4) var(--space-5);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--text-base);
}
.pro-tip-inline strong { color: var(--color-accent-hover); }
[data-theme="dark"] .pro-tip-inline strong { color: var(--color-accent); }


/* ===== Premium rebuild overrides ===== */

:root {
  --color-bg: #f6f3ee;
  --color-surface: rgba(255,255,255,0.72);
  --color-surface-2: rgba(255,255,255,0.88);
  --color-border: rgba(15, 23, 42, 0.1);
  --color-text: #334155;
  --color-text-muted: #5b6472;
  --color-heading: #111827;
  --color-link: #1d4ed8;
  --color-accent: #c78b2d;
  --color-navy: #0f172a;
  --shadow-soft: 0 24px 60px rgba(15, 23, 42, 0.08);
  --shadow-card: 0 16px 40px rgba(15, 23, 42, 0.08);
}
html[data-theme="dark"] {
  --color-bg: #0b1220;
  --color-surface: rgba(15,23,42,0.76);
  --color-surface-2: rgba(15,23,42,0.92);
  --color-border: rgba(255,255,255,0.1);
  --color-text: #dbe4f0;
  --color-text-muted: #9fb0c6;
  --color-heading: #f8fafc;
  --color-link: #8ab4ff;
  --color-accent: #e5b55c;
  --color-navy: #dbe4f0;
  --shadow-soft: 0 28px 70px rgba(0, 0, 0, 0.35);
  --shadow-card: 0 18px 48px rgba(0, 0, 0, 0.28);
}
body {
  background:
    radial-gradient(circle at top left, rgba(199,139,45,.12), transparent 28%),
    radial-gradient(circle at top right, rgba(37,99,235,.10), transparent 26%),
    linear-gradient(180deg, color-mix(in oklab, var(--color-bg) 92%, white 8%), var(--color-bg));
}
.container { width:min(1200px, calc(100% - 2rem)); }
.site-header { background: color-mix(in oklab, var(--color-surface-2) 86%, transparent); box-shadow: 0 1px 0 rgba(255,255,255,.5) inset; }
.hero--premium { position:relative; padding: 5.5rem 0 3rem; overflow:hidden; }
.hero--premium::before {
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(circle at 78% 18%, rgba(199,139,45,.16), transparent 20%),
    radial-gradient(circle at 18% 12%, rgba(29,78,216,.11), transparent 18%);
}
.hero__grid { display:grid; grid-template-columns: 1.15fr .85fr; gap:2rem; align-items:center; }
.hero-copy h1 { font-size: clamp(2.7rem, 6vw, 5rem); line-height: .98; letter-spacing: -.04em; max-width: 12ch; }
.hero__lede { font-size: clamp(1.08rem, 1.8vw, 1.3rem); max-width: 62ch; color: var(--color-text-muted); margin-top: 1.25rem; }
.hero-trust { display:flex; flex-wrap:wrap; gap:.85rem; list-style:none; margin-top:1.2rem; }
.hero-trust li { background: color-mix(in oklab, var(--color-surface) 70%, transparent); border:1px solid var(--color-border); border-radius:999px; padding:.55rem .9rem; font-size:.92rem; box-shadow: var(--shadow-card); }
.hero-panel__card, .glass-card, .guide-card, .value-card, .comparison-card, .sidebar-card, .promo-card, .toc, .tl-dr, .cta-band__inner, .page-intro {
  background: var(--color-surface); border:1px solid var(--color-border); box-shadow: var(--shadow-card); backdrop-filter: blur(16px) saturate(150%); -webkit-backdrop-filter: blur(16px) saturate(150%);
}
.hero-panel__card { border-radius: 28px; padding: 1.25rem; }
.eyebrow-mini, .section-kicker { display:inline-flex; align-items:center; text-transform:uppercase; letter-spacing:.12em; font-size:.76rem; font-weight:700; color:var(--color-accent); }
.mini-guide-list { display:grid; gap:.85rem; margin-top:1rem; }
.mini-guide-list a { display:block; text-decoration:none; color:inherit; padding:1rem 1rem 1rem 1.05rem; border-radius:18px; background: color-mix(in oklab, var(--color-surface-2) 88%, transparent); border:1px solid var(--color-border); }
.mini-guide-list a:hover { transform: translateY(-2px); }
.mini-guide-list span { display:block; margin-top:.25rem; color:var(--color-text-muted); font-size:.94rem; }
.section { padding: 2.5rem 0; }
.section--lifted { margin-top: .5rem; }
.section--soft { background: color-mix(in oklab, var(--color-surface) 58%, transparent); border-block:1px solid var(--color-border); }
.section-heading { max-width: 760px; margin-bottom: 1.5rem; }
.section-heading--split { max-width:none; display:grid; grid-template-columns: 1fr .8fr; gap:1.5rem; align-items:end; }
.section-heading h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -.03em; }
.value-grid, .comparison-grid { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap:1rem; }
.value-card, .comparison-card { border-radius:24px; padding:1.25rem; }
.value-card h3, .comparison-card h3 { font-size:1.05rem; margin-bottom:.45rem; }
.guide-grid { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap:1rem; }
.guide-grid--featured .guide-card { min-height: 220px; }
.guide-card { text-decoration:none; color:inherit; border-radius:24px; padding:1.25rem; position:relative; overflow:hidden; }
.guide-card::after { content:""; position:absolute; inset:auto -24px -42px auto; width:140px; height:140px; background: radial-gradient(circle, rgba(199,139,45,.15), transparent 70%); }
.guide-card:hover { transform: translateY(-4px); }
.guide-card__meta { display:inline-block; font-size:.77rem; font-weight:700; text-transform:uppercase; letter-spacing:.12em; color:var(--color-accent); margin-bottom:.75rem; }
.guide-card h3 { font-size:1.35rem; margin-bottom:.55rem; }
.guide-card p { color:var(--color-text-muted); }
.guide-card__cta { display:inline-flex; margin-top:1rem; font-weight:700; color:var(--color-heading); }
.topic-columns { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap:1rem; }
.topic-group { background: color-mix(in oklab, var(--color-surface) 82%, transparent); border:1px solid var(--color-border); border-radius:24px; padding:1.2rem; box-shadow: var(--shadow-card); }
.topic-group ul { margin-top:.75rem; padding-left:1rem; }
.topic-group li + li { margin-top:.5rem; }
.cta-band__inner { border-radius: 30px; padding:1.5rem; display:flex; align-items:center; justify-content:space-between; gap:1.5rem; }
.page-intro { border-radius:28px; padding:1.5rem; margin-bottom:1.5rem; }
.page-intro--compact h1 { font-size: clamp(2.2rem, 5vw, 3.35rem); margin-bottom:.75rem; }
.site-footer { margin-top: 3rem; background: color-mix(in oklab, var(--color-surface-2) 72%, transparent); border-top:1px solid var(--color-border); }
.footer-grid { display:grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap:1.25rem; }
.footer-brand__desc, .footer-disclosure, .footer-bottom { color:var(--color-text-muted); }
.btn { box-shadow: var(--shadow-card); }
.prose img, .article-figure { border-radius: 20px; box-shadow: var(--shadow-card); }
.promo-card__badge, .sidebar-card__label, .hero__eyebrow { background: color-mix(in oklab, var(--color-surface-2) 88%, transparent); border:1px solid var(--color-border); padding:.4rem .7rem; border-radius:999px; display:inline-flex; align-items:center; gap:.5rem; }
.toc__list a.is-active { color: var(--color-heading); font-weight:700; }
@media (max-width: 980px) {
  .hero__grid, .section-heading--split, .guide-grid, .value-grid, .comparison-grid, .topic-columns, .footer-grid { grid-template-columns: 1fr; }
  .cta-band__inner { flex-direction:column; align-items:flex-start; }
}
@media (max-width: 760px) {
  .hero--premium { padding-top: 4.25rem; }
  .hero-copy h1 { max-width: none; }
  .guide-card, .value-card, .comparison-card, .topic-group, .page-intro, .hero-panel__card { border-radius: 22px; }
}