@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Lora:ital,wght@0,400;0,500;0,600;1,400&family=DM+Sans:wght@300;400;500;600;700&display=swap');

/* =========================================================
   GRIDWISEGUIDE — main.css
   GridwiseGuide.co.uk | Home Battery Storage UK
   ========================================================= */

/* ---------------------------------------------------------
   1. DESIGN TOKENS
   --------------------------------------------------------- */
:root {
  /* Backgrounds */
  --bg-page:        #f8f6f1;
  --bg-surface:     #ffffff;
  --bg-subtle:      #f2ede4;
  --bg-muted:       #e8e2d8;
  --bg-dark:        #1a2e1a;

  /* Accent — amber-green */
  --accent:         #4a8c2a;
  --accent-mid:     #3a7020;
  --accent-dark:    #2a5015;
  --accent-light:   #e4f2d8;
  --accent-pale:    #f2faea;
  --accent-glow:    rgba(74, 140, 42, 0.12);

  /* Gold — cost/financial signals */
  --gold:           #a07808;
  --gold-light:     #fffae8;
  --gold-border:    #e0c040;

  /* Slate — text hierarchy */
  --slate-900:      #1a2a1a;
  --slate-700:      #2d4a2d;
  --slate-500:      #4a6b4a;
  --slate-300:      #9ab89a;
  --slate-100:      #edf4ed;

  /* Text */
  --text-primary:   #1a2a1a;
  --text-body:      #2e3e2e;
  --text-secondary: #4a6050;
  --text-muted:     #7a8f7a;

  /* Borders */
  --border:         #ddd8ce;
  --border-strong:  #c8c0b4;

  /* Status */
  --success:        #2d7a4a;
  --warning:        #a07808;
  --danger:         #b44030;

  /* Typography */
  --font-display:   'DM Serif Display', Georgia, serif;
  --font-body:      'Lora', Georgia, serif;
  --font-ui:        'DM Sans', system-ui, sans-serif;

  /* Layout */
  --max-w:          1180px;
  --content-w:      760px;
  --radius:         6px;
  --radius-lg:      12px;

  /* Shadows */
  --shadow-sm:      0 1px 4px rgba(28, 42, 28, 0.07);
  --shadow-md:      0 4px 16px rgba(28, 42, 28, 0.10);
  --shadow-card:    0 2px 8px rgba(28, 42, 28, 0.07), 0 0 0 1px var(--border);
}

/* ---------------------------------------------------------
   2. RESET & BASE
   --------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--text-body);
  background-color: var(--bg-page);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-light);
  text-underline-offset: 3px;
  transition: color 0.15s, text-decoration-color 0.15s;
}

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

ul, ol {
  padding-left: 1.5rem;
}

/* ---------------------------------------------------------
   3. TYPOGRAPHY
   --------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  color: var(--slate-900);
}

h1 {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  color: var(--slate-900);
}

h1.hero-h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
}

h2 {
  font-size: 1.65rem;
  color: var(--slate-900);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

h2:first-child {
  margin-top: 0;
}

h3 {
  font-size: 1.2rem;
  color: var(--slate-700);
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

h4 {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--slate-700);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.1rem;
}

strong {
  font-weight: 600;
  color: var(--slate-700);
}

/* Section eyebrow */
.eyebrow {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  display: block;
  margin-bottom: 0.5rem;
}

/* Drop cap — first <p> in .article-content */
.article-content > p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-size: 3.4rem;
  float: left;
  line-height: 0.85;
  margin-right: 0.12em;
  margin-top: 0.08em;
  color: var(--accent);
}

/* ---------------------------------------------------------
   4. LAYOUT UTILITIES
   --------------------------------------------------------- */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.container-content {
  max-width: var(--content-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  padding-block: 4rem;
}

.section-sm {
  padding-block: 2.5rem;
}

/* ---------------------------------------------------------
   5. COMPLIANCE RIBBON
   --------------------------------------------------------- */
.compliance-ribbon {
  background-color: var(--bg-dark);
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 400;
  text-align: center;
  padding: 0.55rem 1.5rem;
  line-height: 1.4;
}

.compliance-ribbon strong {
  color: #ffffff;
  font-weight: 700;
}

/* ---------------------------------------------------------
   6. SITE HEADER
   --------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-logo {
  font-family: var(--font-ui);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--slate-900);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.site-logo em {
  font-style: normal;
  color: var(--accent);
}

.site-logo:hover {
  color: var(--slate-900);
  text-decoration: none;
}

.logo-mark {
  font-size: 1.3rem;
  line-height: 1;
}

.site-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}

.site-nav a:hover {
  color: var(--slate-900);
  background: var(--accent-pale);
}

.site-nav .nav-cta {
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: var(--radius);
}

.site-nav .nav-cta:hover {
  background: var(--accent-mid);
  color: #ffffff;
}

/* ---------------------------------------------------------
   7. BREADCRUMB
   --------------------------------------------------------- */
.breadcrumb {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
}

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

.breadcrumb span {
  margin-inline: 0.4rem;
}

/* ---------------------------------------------------------
   8. HERO — HOMEPAGE
   --------------------------------------------------------- */
.hero {
  background: var(--bg-surface);
  padding-block: 4rem 3rem;
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 3rem;
  align-items: start;
}

.hero-copy h1 {
  margin-bottom: 1rem;
}

.hero-copy h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.pill {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-dark);
  background: var(--accent-light);
  border: 1px solid rgba(74, 140, 42, 0.25);
  border-radius: 100px;
  padding: 0.3rem 0.75rem;
  white-space: nowrap;
}

/* Hero Quote Card */
.quote-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.75rem;
  position: sticky;
  top: 84px;
}

.quote-card-label {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.quote-card h2 {
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group select {
  width: 100%;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ---------------------------------------------------------
   9. BUTTONS
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-weight: 600;
  border-radius: var(--radius);
  padding: 0.7rem 1.4rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  font-size: 0.95rem;
  line-height: 1.2;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  width: 100%;
}

.btn-primary:hover {
  background: var(--accent-mid);
  color: #ffffff;
  text-decoration: none;
}

.btn-dark {
  background: var(--bg-dark);
  color: #ffffff;
}

.btn-dark:hover {
  background: #253825;
  color: #ffffff;
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent-pale);
  text-decoration: none;
}

.btn-lg {
  font-size: 1.05rem;
  padding: 0.85rem 1.75rem;
}

.btn-calc {
  display: block;
  width: 100%;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  background: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: var(--radius);
  padding: 0.85rem 1.5rem;
  cursor: pointer;
  margin-top: 1.25rem;
  transition: background 0.15s;
  text-align: center;
}

.btn-calc:hover {
  background: var(--accent-mid);
}

/* CTA Disclaimer */
.cta-disclaimer {
  font-family: var(--font-ui);
  font-size: 0.73rem;
  color: var(--text-muted);
  margin-top: 0.6rem;
  line-height: 1.4;
  text-align: center;
}

/* ---------------------------------------------------------
   10. VAT BADGE
   --------------------------------------------------------- */
.vat-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--success);
  background: var(--accent-pale);
  border: 1px solid var(--accent-light);
  border-radius: var(--radius);
  padding: 0.45rem 0.75rem;
  margin-bottom: 1rem;
}

.vat-badge span {
  color: var(--success);
  font-weight: 700;
}

/* ---------------------------------------------------------
   11. TRUST BAR
   --------------------------------------------------------- */
.trust-bar {
  background: var(--accent-pale);
  border-top: 1px solid var(--accent-light);
  border-bottom: 1px solid var(--accent-light);
  padding-block: 1.25rem;
}

.trust-bar-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.5rem 2.5rem;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-dark);
}

.trust-item svg {
  flex-shrink: 0;
}

/* ---------------------------------------------------------
   12. PROFILE CARDS
   --------------------------------------------------------- */
.profile-section {
  background: var(--bg-page);
  padding-block: 4rem;
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

.section-header p {
  max-width: 560px;
  margin-inline: auto;
  color: var(--text-secondary);
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.profile-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s, transform 0.15s;
}

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

.profile-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.profile-card h3 {
  font-size: 1.1rem;
  color: var(--slate-900);
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.profile-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ---------------------------------------------------------
   13. STATS STRIP
   --------------------------------------------------------- */
.stats-strip {
  background: var(--bg-dark);
  padding-block: 2.5rem;
}

.stats-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item {
  color: #ffffff;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: #ffffff;
  display: block;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.4;
}

/* ---------------------------------------------------------
   14. RESOURCE GRID
   --------------------------------------------------------- */
.resource-section {
  background: var(--bg-page);
  padding-block: 4rem;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.resource-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s, transform 0.15s;
}

.resource-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}

.resource-card-header {
  padding: 1.25rem 1.5rem 1rem;
}

.resource-tag {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
  background: var(--accent-light);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 0.6rem;
}

.resource-card-body {
  padding: 0 1.5rem 1.5rem;
  flex: 1;
}

.resource-card h3 {
  font-size: 1.05rem;
  color: var(--slate-900);
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

.resource-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

.resource-card-footer {
  padding: 0.75rem 1.5rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
}

/* ---------------------------------------------------------
   15. CTA BANNER
   --------------------------------------------------------- */
.cta-banner {
  background: var(--accent);
  padding-block: 3.5rem;
  text-align: center;
}

.cta-banner h2 {
  color: #ffffff;
  font-size: 1.8rem;
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.cta-banner p {
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: 1.5rem;
}

.cta-banner .btn-dark {
  background: var(--bg-dark);
}

.cta-banner .cta-disclaimer {
  color: rgba(255,255,255,0.65);
  margin-top: 0.75rem;
}

/* Dark CTA Banner variant */
.cta-banner-dark {
  background: var(--bg-dark);
  padding-block: 3rem;
  text-align: center;
}

.cta-banner-dark h2 {
  color: #ffffff;
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.cta-banner-dark p {
  color: rgba(255,255,255,0.75);
  margin-bottom: 1.5rem;
}

/* ---------------------------------------------------------
   16. AUTHORITY LINKS
   --------------------------------------------------------- */
.authority-links {
  background: var(--bg-subtle);
  padding-block: 2.5rem;
  border-top: 1px solid var(--border);
}

.authority-links h3 {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  margin-top: 0;
}

.authority-links ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.authority-links ul li a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--accent-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-light);
  transition: border-color 0.15s;
}

.authority-links ul li a:hover {
  border-color: var(--accent);
}

/* ---------------------------------------------------------
   17. COMPLIANCE / BUS NOTE
   --------------------------------------------------------- */
.compliance-note {
  background: var(--gold-light);
  border: 1px solid var(--gold-border);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--gold);
  margin-block: 1.5rem;
  line-height: 1.5;
}

.compliance-note strong {
  color: var(--gold);
  font-weight: 700;
}

.compliance-note a {
  color: var(--gold);
  font-weight: 600;
}

/* ---------------------------------------------------------
   18. ARTICLE LAYOUT (2-col with sidebar)
   --------------------------------------------------------- */
.article-wrap {
  background: var(--bg-page);
  padding-block: 3rem;
}

.article-layout {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 3rem;
  align-items: start;
}

.article-main {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  min-width: 0;
}

.article-content {
  /* drop cap handled by global rule */
}

/* ---------------------------------------------------------
   19. DIRECT ANSWER BLOCK (DAB)
   --------------------------------------------------------- */
.dab {
  background: var(--accent-pale);
  border: 1px solid var(--accent-light);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  margin-block: 1rem 1.5rem;
}

.dab-label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
}

.dab p {
  font-size: 0.95rem;
  color: var(--slate-700);
  margin: 0;
  line-height: 1.6;
}

.dab p strong {
  color: var(--slate-900);
}

/* ---------------------------------------------------------
   20. DATA CALLOUT BOXES
   --------------------------------------------------------- */
.callout {
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-block: 1.75rem;
}

.callout-gold {
  background: var(--gold-light);
  border: 1px solid var(--gold-border);
  border-left: 4px solid var(--gold);
}

.callout-gold .callout-label {
  color: var(--gold);
}

.callout-green {
  background: var(--accent-pale);
  border: 1px solid var(--accent-light);
  border-left: 4px solid var(--accent);
}

.callout-green .callout-label {
  color: var(--accent);
}

.callout-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.callout h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.callout p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}

.callout ol, .callout ul {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* ---------------------------------------------------------
   21. STAT STRIP (article inline)
   --------------------------------------------------------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-block: 1.75rem;
}

.stat-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  text-align: center;
}

.stat-card .stat-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--accent);
  display: block;
  line-height: 1.1;
}

.stat-card .stat-desc {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* ---------------------------------------------------------
   22. SIDEBAR
   --------------------------------------------------------- */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: 84px;
}

.sidebar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--slate-900);
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

/* TOC */
.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-list li {
  border-bottom: 1px solid var(--border);
}

.toc-list li:last-child {
  border-bottom: none;
}

.toc-list a {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.45rem 0;
  transition: color 0.15s;
}

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

/* Key Facts */
.key-facts {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.key-fact {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.key-fact-icon {
  flex-shrink: 0;
  font-size: 0.9rem;
  margin-top: 0.05em;
}

.key-fact strong {
  color: var(--slate-900);
  font-weight: 600;
}

/* ---------------------------------------------------------
   23. CALCULATOR
   --------------------------------------------------------- */
.calculator {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-block: 2rem;
  box-shadow: var(--shadow-md);
}

.calc-header {
  background: var(--bg-dark);
  padding: 1.5rem 2rem;
}

.calc-header h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: #ffffff;
  margin: 0 0 0.25rem;
}

.calc-header p {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin: 0;
}

.calc-body {
  background: var(--bg-surface);
  padding: 2rem;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.calc-group label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 0.35rem;
}

.calc-group input,
.calc-group select {
  width: 100%;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.calc-group input:focus,
.calc-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.calc-hint {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-muted);
  display: block;
  margin-top: 0.25rem;
}

.calc-results {
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
  display: none;
}

.calc-results.visible {
  display: block;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.result-item {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
}

.result-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 0.3rem;
}

.result-label {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.result-recommendation {
  background: var(--accent-pale);
  border: 1px solid var(--accent-light);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--slate-700);
  line-height: 1.6;
}

.calc-disclaimer {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1.25rem;
  margin-bottom: 0;
  line-height: 1.5;
}

/* ---------------------------------------------------------
   24. COMPARISON TABLE
   --------------------------------------------------------- */
.comparison-table-wrap {
  overflow-x: auto;
  margin-block: 1.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.875rem;
}

.comparison-table th {
  background: var(--bg-dark);
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 1rem;
  text-align: left;
  white-space: nowrap;
}

.comparison-table th:first-child {
  border-radius: 0;
}

.comparison-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-body);
  vertical-align: top;
  line-height: 1.4;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tr:nth-child(even) td {
  background: var(--bg-subtle);
}

.comparison-table tr:hover td {
  background: var(--accent-pale);
}

.best-badge {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-left: 0.4rem;
  vertical-align: middle;
}

.editor-pick-badge {
  display: inline-block;
  background: var(--gold);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  vertical-align: middle;
}

/* ---------------------------------------------------------
   25. PICK CARDS (Comparison Page)
   --------------------------------------------------------- */
.pick-cards {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-block: 2rem;
}

.pick-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.pick-card.top-pick {
  border-color: var(--accent);
  border-width: 2px;
}

.pick-card-header {
  background: var(--bg-subtle);
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.pick-card.top-pick .pick-card-header {
  background: var(--accent-light);
}

.pick-card-header h3 {
  font-size: 1.2rem;
  color: var(--slate-900);
  margin: 0;
}

.rank-badge {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.rank-badge-green {
  background: var(--accent);
  color: #ffffff;
}

.rank-badge-blue {
  background: var(--slate-700);
  color: #ffffff;
}

.rank-badge-premium {
  background: var(--gold);
  color: #ffffff;
}

.rank-badge-solar {
  background: var(--bg-dark);
  color: #ffffff;
}

.pick-specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border);
}

.spec-cell {
  padding: 1rem 1.25rem;
  border-right: 1px solid var(--border);
  text-align: center;
}

.spec-cell:last-child {
  border-right: none;
}

.spec-value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--slate-900);
  display: block;
  margin-bottom: 0.2rem;
}

.spec-label {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.pick-body {
  padding: 1.5rem 1.75rem;
}

.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.pros h4, .cons h4 {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.pros h4 { color: var(--success); }
.cons h4 { color: var(--danger); }

.pros ul, .cons ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.pros li, .cons li {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  line-height: 1.4;
}

.pros li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05em;
}

.cons li::before {
  content: '✗';
  color: var(--danger);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05em;
}

.pick-analysis {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.65;
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
  margin-top: 0;
}

.pick-cta {
  padding: 1.25rem 1.75rem;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.pick-cta .btn {
  white-space: nowrap;
}

.pick-cta .cta-disclaimer {
  text-align: left;
  font-size: 0.72rem;
  margin: 0;
  flex: 1;
  min-width: 200px;
}

/* ---------------------------------------------------------
   26. FAQ ACCORDION
   --------------------------------------------------------- */
.faq-list {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-block: 1.5rem;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.1rem 1.25rem;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--slate-900);
  line-height: 1.4;
  transition: background 0.15s;
}

.faq-question:hover {
  background: var(--bg-subtle);
}

.faq-question[aria-expanded="true"] {
  background: var(--accent-pale);
  color: var(--accent-dark);
}

.faq-chevron {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform 0.2s;
  color: var(--text-muted);
}

.faq-question[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

.faq-answer {
  display: none;
  padding: 0 1.25rem 1.1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.faq-answer.open {
  display: block;
}

/* ---------------------------------------------------------
   27. PAGE HERO (inner pages)
   --------------------------------------------------------- */
.page-hero {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding-block: 3rem 2.5rem;
}

.page-hero-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.page-hero h1 {
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

.page-hero .lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.meta-pill {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.3rem 0.75rem;
}

/* ---------------------------------------------------------
   28. FOOTER
   --------------------------------------------------------- */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.75);
  padding-block: 3rem 2rem;
  margin-top: auto;
}

.footer-grid {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand .site-logo {
  color: #ffffff;
  margin-bottom: 0.75rem;
  display: inline-flex;
}

.footer-brand p {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
  margin-bottom: 0;
}

.footer-nav h4 {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.45);
  margin-bottom: 0.75rem;
}

.footer-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-nav ul li a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-nav ul li a:hover {
  color: #ffffff;
}

.footer-disclosure {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
}

.disclosure-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 3rem;
}

.disclosure-section h4 {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.45);
  margin-bottom: 0.5rem;
}

.disclosure-section p {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
  margin: 0;
}

.footer-bottom {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  margin: 0;
}

/* ---------------------------------------------------------
   29. QUICK COMPARISON TABLE (D page)
   --------------------------------------------------------- */
.quick-compare-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  margin-block: 1.75rem;
}

.quick-compare-table th {
  background: var(--bg-dark);
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 1rem;
  text-align: left;
}

.quick-compare-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-body);
  vertical-align: middle;
}

.quick-compare-table tr:last-child td {
  border-bottom: none;
}

.quick-compare-table tr:nth-child(even) td {
  background: var(--bg-subtle);
}

/* ---------------------------------------------------------
   30. RESPONSIVE
   --------------------------------------------------------- */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .quote-card {
    position: static;
    max-width: 480px;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

@media (max-width: 768px) {
  .site-nav {
    display: none;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

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

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

  .stats-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .stat-strip {
    grid-template-columns: 1fr;
  }

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

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

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

  .spec-cell:nth-child(2) {
    border-right: none;
  }

  .pros-cons {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .article-main {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .trust-bar-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

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

  .pick-specs {
    grid-template-columns: 1fr 1fr;
  }
}