/* ==========================================================================
   Silver Vigilantes - Minimal CSS
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Colors - warm palette to reduce eye strain */
  --color-primary: #1a1a2e;
  --color-silver: #c0c0c0;
  --color-accent: #4a7c59;
  --color-accent-hover: #3d6849;
  --color-bg: #f9f7f4;           /* warm off-white */
  --color-bg-alt: #f3f1ed;       /* warm light gray */
  --color-text: #2f2f2d;         /* slightly warm dark */
  --color-text-muted: #6b6963;   /* warm muted */
  --color-border: #e8e6e1;       /* warm border */
  --color-warning: #fef6e6;      /* warm warning bg */
  --color-warning-border: #e5a030;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --container-max: 1200px;
  --content-max: 65ch;
  --sidebar-width: 300px;
  --header-height: 80px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1.3;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

h1 { font-size: 2.25rem; margin-top: 0; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }

p { margin: 0 0 var(--space-lg); }

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  margin: 0 0 var(--space-lg);
  padding-left: var(--space-xl);
}

li { margin-bottom: var(--space-sm); }

blockquote {
  margin: var(--space-xl) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--color-silver);
  background: var(--color-bg-alt);
  font-style: italic;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-alt);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 3px;
}

pre {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-lg);
  overflow-x: auto;
  border-radius: 4px;
}

pre code {
  background: none;
  padding: 0;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-2xl) 0;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.content-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  padding: var(--space-2xl) 0;
}

@media (min-width: 1024px) {
  .content-wrapper {
    grid-template-columns: 1fr var(--sidebar-width);
  }
}

.main-content {
  min-width: 0;
}

.entry-content {
  max-width: var(--content-max);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  z-index: 1000;
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-md);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  background: var(--color-primary);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-branding {
  flex-shrink: 0;
}

.site-title {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
}

.site-title:hover {
  color: var(--color-silver);
}

.site-tagline {
  font-size: 0.875rem;
  color: var(--color-silver);
  margin: var(--space-xs) 0 0;
  display: none;
}

@media (min-width: 768px) {
  .site-tagline {
    display: block;
  }
}

/* Navigation */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: transform var(--transition-normal);
}

.nav-toggle-icon {
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-icon::before { top: -8px; }
.nav-toggle-icon::after { top: 8px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  transform: rotate(-45deg) translate(5px, -6px);
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }
}

.main-nav {
  display: none;
  width: 100%;
  padding: var(--space-md) 0;
}

.main-nav.is-open {
  display: block;
}

@media (min-width: 1024px) {
  .main-nav {
    display: block;
    width: auto;
    padding: 0;
  }
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

@media (min-width: 1024px) {
  .nav-list {
    flex-direction: row;
    gap: var(--space-lg);
  }
}

.nav-item a {
  display: block;
  color: #fff;
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: var(--space-sm) 0;
}

.nav-item a:hover,
.nav-item a[aria-current="page"] {
  color: var(--color-silver);
}

/* Dropdown */
.has-children {
  position: relative;
}

.sub-nav {
  display: none;
  list-style: none;
  margin: 0;
  padding: var(--space-sm) 0 var(--space-sm) var(--space-lg);
}

@media (min-width: 1024px) {
  .sub-nav {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-primary);
    padding: var(--space-md);
    min-width: 220px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  }

  .has-children:hover .sub-nav {
    display: block;
  }
}

.main-nav.is-open .sub-nav {
  display: block;
}

.sub-nav li {
  margin: 0;
}

.sub-nav a {
  padding: var(--space-xs) 0;
  font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   Page Header
   -------------------------------------------------------------------------- */
.page-header,
.article-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.page-header h1,
.article-header h1 {
  margin-bottom: var(--space-sm);
}

.meta {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* --------------------------------------------------------------------------
   Archive Notice
   -------------------------------------------------------------------------- */
.archive-notice {
  background: var(--color-warning);
  border: 1px solid var(--color-warning-border);
  border-radius: 4px;
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.archive-notice a {
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Sidebar
   -------------------------------------------------------------------------- */
.sidebar {
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.sidebar-section {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-section:last-child {
  border-bottom: none;
}

.sidebar-section h3 {
  font-size: 1rem;
  margin-top: 0;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-nav li {
  margin-bottom: var(--space-sm);
}

.sidebar-nav a {
  text-decoration: none;
}

.sidebar-nav a:hover,
.sidebar-nav a[aria-current="page"] {
  text-decoration: underline;
}

.sidebar-ad {
  min-height: 250px;
}

/* Email capture */
.email-capture {
  background: var(--color-bg-alt);
  padding: var(--space-lg);
  border-radius: 4px;
  border: none;
}

.email-capture p {
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.email-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.email-form input[type="email"] {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 1rem;
}

.email-form button {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.email-form button:hover {
  background: var(--color-accent-hover);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3xl) 0 var(--space-xl);
  margin-top: var(--space-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer-section h3 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-silver);
  margin-top: 0;
  margin-bottom: var(--space-md);
}

.footer-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-section li {
  margin-bottom: var(--space-sm);
}

.footer-section a {
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
}

.footer-section a:hover {
  color: var(--color-silver);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-xl);
  font-size: 0.875rem;
  color: var(--color-silver);
}

.footer-bottom p {
  margin: 0 0 var(--space-sm);
}

.disclosure {
  font-size: 0.8rem;
}

/* --------------------------------------------------------------------------
   Article Footer
   -------------------------------------------------------------------------- */
.article-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.article-nav a {
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   Ads
   -------------------------------------------------------------------------- */
.ad-unit {
  background: var(--color-bg-alt);
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ad-inline {
  margin: var(--space-xl) 0;
}

/* --------------------------------------------------------------------------
   Email Signup
   -------------------------------------------------------------------------- */
.email-signup-box {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2a2a4e 100%);
  color: #fff;
  padding: var(--space-xl);
  border-radius: 8px;
  margin: var(--space-2xl) 0;
  text-align: center;
}

.email-signup-box h3 {
  color: #fff;
  margin-top: 0;
  font-size: 1.5rem;
}

.email-signup-box p {
  color: var(--color-silver);
  margin-bottom: var(--space-lg);
}

.email-signup-form .form-row {
  display: flex;
  gap: var(--space-sm);
  max-width: 450px;
  margin: 0 auto;
}

.email-signup-form input[type="email"] {
  flex: 1;
  padding: var(--space-md);
  border: 2px solid transparent;
  border-radius: 4px;
  font-size: 1rem;
}

.email-signup-form input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

.email-signup-form button {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
  white-space: nowrap;
}

.email-signup-form button:hover {
  background: var(--color-accent-hover);
}

.email-signup-box small {
  display: block;
  margin-top: var(--space-md);
  color: var(--color-silver);
  font-size: 0.85rem;
}

.email-signup-box .coming-soon {
  color: var(--color-silver);
}

@media (max-width: 500px) {
  .email-signup-form .form-row {
    flex-direction: column;
  }
}

/* --------------------------------------------------------------------------
   Affiliate CTA
   -------------------------------------------------------------------------- */
.affiliate-cta {
  background: var(--color-bg-alt);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
  text-align: center;
}

.affiliate-cta h3 {
  margin-top: 0;
  color: var(--color-primary);
}

.affiliate-cta p {
  margin-bottom: var(--space-md);
}

.btn-affiliate {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  margin: var(--space-sm);
  transition: background var(--transition-fast);
}

.btn-affiliate:hover {
  background: var(--color-accent-hover);
  color: #fff;
}

.affiliate-cta .disclosure {
  display: block;
  margin-top: var(--space-md);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.affiliate-placeholder {
  border-style: dashed;
}

/* --------------------------------------------------------------------------
   Product Grid
   -------------------------------------------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-radius: 4px;
}

.product-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background: #fff;
  border-radius: 4px;
}

.product-item img {
  max-width: 100%;
  height: auto;
  transition: transform var(--transition-normal);
}

.product-item img:hover {
  transform: scale(1.05);
}

@media (max-width: 600px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 400px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
}

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

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .site-footer,
  .sidebar,
  .ad-unit,
  .nav-toggle {
    display: none;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .content-wrapper {
    display: block;
  }
}