/* ============================================================
   RFXapp Landing Page — Design System
   Matches the app frontend exactly: sharp corners, B&W palette,
   system fonts, Lucide icons, minimal shadows.
   ============================================================ */

/* ────────────────────────────────────────────────────────────
   CSS Custom Properties
   ──────────────────────────────────────────────────────────── */
:root {
  --color-primary: #000000;
  --color-white: #FFFFFF;
  --color-bg: #FFFFFF;
  --color-bg-alt: #FAFAFA;
  --color-bg-hover: #F5F5F5;
  --color-border: #E5E5E5;
  --color-text: #000000;
  --color-text-secondary: #999999;
  --color-text-muted: #666666;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --color-info: #3B82F6;
  --color-indigo: #6366F1;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --nav-height: 60px;
  --container-width: 1200px;
  --transition: all 0.15s;
}

/* ────────────────────────────────────────────────────────────
   Reset & Base
   ──────────────────────────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

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

ul, ol {
  list-style: none;
}

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

/* ────────────────────────────────────────────────────────────
   Typography
   ──────────────────────────────────────────────────────────── */
h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.1;
}

h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.8px;
  line-height: 1.2;
}

h3 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

h4 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  line-height: 1.3;
}

p {
  line-height: 1.6;
}

/* ────────────────────────────────────────────────────────────
   Layout
   ──────────────────────────────────────────────────────────── */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

/* ────────────────────────────────────────────────────────────
   Navigation
   ──────────────────────────────────────────────────────────── */
.nav {
  height: var(--nav-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  height: 32px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 8px;
  flex: 1;
}

.nav-link {
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link.active {
  color: var(--color-text);
  background: var(--color-bg-hover);
}

.nav-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-shrink: 0;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-text);
  padding: 4px;
  cursor: pointer;
  line-height: 1;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 32px;
  z-index: 99;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.mobile-menu a:hover {
  color: var(--color-text);
  background: var(--color-bg-hover);
}

.mobile-menu .mobile-menu-cta {
  margin-top: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ────────────────────────────────────────────────────────────
   Buttons
   ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  border-radius: 0;
  font-family: inherit;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
}

.btn-primary:hover {
  background: #333;
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

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

.btn-sm {
  padding: 6px 14px;
  font-size: 12px;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 15px;
}

.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
  border: none;
  font-weight: 700;
}

.btn-white:hover {
  background: var(--color-bg-hover);
}

/* ────────────────────────────────────────────────────────────
   Cards
   ──────────────────────────────────────────────────────────── */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 32px;
}

.card-sm {
  padding: 20px 24px;
}

.card-lg {
  padding: 40px;
}

/* ────────────────────────────────────────────────────────────
   Hero
   ──────────────────────────────────────────────────────────── */
.hero {
  padding: 48px 0;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  letter-spacing: -1.5px;
  line-height: 1.1;
  max-width: 800px;
  margin: 0 auto 24px;
}

.hero .hero-subtitle {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-image {
  max-width: 900px;
  margin: 32px auto 0;
  border: 1px solid var(--color-border);
}

.hero-image img {
  width: 100%;
  height: auto;
}

/* ────────────────────────────────────────────────────────────
   Sections
   ──────────────────────────────────────────────────────────── */
.section {
  padding: 48px 0;
}

.section-alt {
  background: var(--color-bg-alt);
  padding: 48px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 32px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ────────────────────────────────────────────────────────────
   Feature Grid
   ──────────────────────────────────────────────────────────── */
.feature-card {
  padding: 32px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.feature-card .feature-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 20px;
  color: var(--color-text);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Feature rows (alternating left/right on product page) */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.feature-row:last-child {
  border-bottom: none;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-row-content h3 {
  font-size: 24px;
  margin-bottom: 16px;
}

.feature-row-content p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.feature-row-content ul {
  list-style: none;
  padding: 0;
}

.feature-row-content ul li {
  padding: 6px 0;
  font-size: 14px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-row-content ul li i {
  width: 16px;
  height: 16px;
  color: var(--color-success);
  flex-shrink: 0;
}

.feature-row-image {
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.feature-row-image img {
  width: 100%;
  height: auto;
}

/* ────────────────────────────────────────────────────────────
   Steps (How it works)
   ──────────────────────────────────────────────────────────── */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  margin: 0 auto 20px;
}

.step-connector {
  position: absolute;
  top: 24px;
  left: calc(50% + 32px);
  width: calc(100% - 64px);
  height: 1px;
  background: var(--color-border);
}

.step:last-child .step-connector {
  display: none;
}

.step h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ────────────────────────────────────────────────────────────
   Pricing
   ──────────────────────────────────────────────────────────── */
.pricing-toggle {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 32px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 4px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.pricing-toggle-btn {
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 700;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.pricing-toggle-btn.active {
  background: var(--color-white);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  border: 1px solid var(--color-border);
  padding: 40px;
  background: var(--color-white);
}

.pricing-card.featured {
  border-color: var(--color-primary);
  border-width: 2px;
}

.pricing-card-header {
  margin-bottom: 32px;
}

.pricing-card-name {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.pricing-card-price {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1;
  margin-bottom: 8px;
}

.pricing-card-price .currency {
  font-size: 24px;
  vertical-align: top;
  line-height: 1.5;
}

.pricing-card-price .period {
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text-secondary);
}

.pricing-card-price .price {
  display: none;
}

.pricing-card-price .price.active {
  display: inline;
}

.pricing-card-desc {
  font-size: 14px;
  color: var(--color-text-muted);
}

.pricing-card-features {
  margin-bottom: 32px;
}

.pricing-card-features li {
  padding: 10px 0;
  font-size: 14px;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-bg-hover);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-card-features li:last-child {
  border-bottom: none;
}

.pricing-card-features li i {
  width: 16px;
  height: 16px;
  color: var(--color-success);
  flex-shrink: 0;
}

.pricing-card .btn {
  width: 100%;
}

/* Feature comparison table */
.compare-table-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.compare-table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-text-secondary);
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.compare-table th:not(:first-child) {
  text-align: center;
}

.compare-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-bg-hover);
  color: var(--color-text-muted);
}

.compare-table td:not(:first-child) {
  text-align: center;
  font-weight: 600;
}

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

/* ────────────────────────────────────────────────────────────
   Comparison Page Tables
   ──────────────────────────────────────────────────────────── */
.comparison-section {
  margin-bottom: 0;
}

.comparison-section h3 {
  margin-bottom: 24px;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  border: 1px solid var(--color-border);
}

.comparison-table th {
  padding: 16px 20px;
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.comparison-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-bg-hover);
  color: var(--color-text-muted);
  vertical-align: top;
}

.comparison-table td:first-child {
  font-weight: 600;
  color: var(--color-text);
  width: 200px;
}

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

/* ────────────────────────────────────────────────────────────
   Accordion / FAQ
   ──────────────────────────────────────────────────────────── */
.accordion {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--color-border);
  margin-bottom: 8px;
}

.accordion-header {
  padding: 16px 20px;
  font-size: 14px;
  font-weight: 700;
  background: var(--color-white);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  border: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
  color: var(--color-text);
}

.accordion-header:hover {
  background: var(--color-bg-alt);
}

.accordion-header i {
  width: 16px;
  height: 16px;
  transition: transform 0.2s;
  flex-shrink: 0;
  color: var(--color-text-secondary);
}

.accordion-item.open .accordion-header i {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-item.open .accordion-content {
  max-height: 500px;
}

.accordion-content-inner {
  padding: 0 20px 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ────────────────────────────────────────────────────────────
   CTA Banner
   ──────────────────────────────────────────────────────────── */
.cta-banner {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 48px 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-banner p {
  color: #999;
  font-size: 16px;
  max-width: 500px;
  margin: 0 auto 32px;
}

/* ────────────────────────────────────────────────────────────
   Pain Points
   ──────────────────────────────────────────────────────────── */
.pain-card {
  text-align: center;
  padding: 40px 32px;
  border: 1px solid var(--color-border);
}

.pain-card .pain-icon {
  width: 32px;
  height: 32px;
  margin: 0 auto 16px;
  color: var(--color-text-secondary);
}

.pain-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.pain-card p {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ────────────────────────────────────────────────────────────
   Use Case Cards
   ──────────────────────────────────────────────────────────── */
.use-case-card {
  padding: 32px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.use-case-card .use-case-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 16px;
  color: var(--color-text);
}

.use-case-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.use-case-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.use-case-card .use-case-helps {
  font-size: 13px;
  color: var(--color-text);
  font-weight: 600;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

/* ────────────────────────────────────────────────────────────
   Footer
   ──────────────────────────────────────────────────────────── */
.footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 48px 0 32px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 14px;
  color: #999;
  margin-top: 16px;
  line-height: 1.5;
}

.footer-logo {
  height: 28px;
  width: auto;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #999;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: #CCC;
  padding: 4px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 24px;
  font-size: 13px;
  color: #666;
}

/* ────────────────────────────────────────────────────────────
   Article / Prose (guides)
   ──────────────────────────────────────────────────────────── */
.article-header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.article-header h1 {
  font-size: 36px;
  max-width: 720px;
  margin: 0 auto 12px;
  text-align: center;
}

.article-meta {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.article-hero-image {
  max-width: 720px;
  margin: 0 auto 40px;
  border: 1px solid var(--color-border);
}

.article-hero-image img {
  width: 100%;
  height: auto;
}

.article-content {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: #333;
}

.article-content h2 {
  margin-top: 48px;
  margin-bottom: 16px;
  font-size: 24px;
}

.article-content h3 {
  margin-top: 32px;
  margin-bottom: 12px;
  font-size: 20px;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content ul,
.article-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.article-content strong {
  font-weight: 700;
  color: var(--color-text);
}

.article-content blockquote {
  border-left: 3px solid var(--color-primary);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--color-bg-alt);
  font-style: italic;
  color: var(--color-text-muted);
}

.article-cta-box {
  border: 1px solid var(--color-border);
  padding: 32px;
  margin: 40px 0;
  text-align: center;
  background: var(--color-bg-alt);
}

.article-cta-box h3 {
  font-size: 20px;
  margin-bottom: 12px;
  margin-top: 0;
}

.article-cta-box p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

/* Breadcrumb */
.breadcrumb {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  text-align: center;
}

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

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

/* Related guides */
.related-guides {
  margin-top: 48px;
  margin-bottom: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.related-guides h3 {
  margin-bottom: 24px;
  text-align: center;
}

/* ────────────────────────────────────────────────────────────
   Guide Cards (resources page)
   ──────────────────────────────────────────────────────────── */
.guide-card {
  padding: 32px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  display: flex;
  flex-direction: column;
}

.guide-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.guide-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.5;
  flex: 1;
  margin-bottom: 16px;
}

.guide-card .guide-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  transition: var(--transition);
}

.guide-card .guide-link:hover {
  color: var(--color-text-muted);
}

/* ────────────────────────────────────────────────────────────
   Page Header (for inner pages)
   ──────────────────────────────────────────────────────────── */
.page-hero {
  padding: 48px 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-hero h1 {
  font-size: 40px;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ────────────────────────────────────────────────────────────
   Legal Pages
   ──────────────────────────────────────────────────────────── */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 48px 0;
}

.legal-content h2 {
  margin-top: 40px;
  margin-bottom: 16px;
}

.legal-content h3 {
  margin-top: 24px;
  margin-bottom: 12px;
  font-size: 18px;
}

.legal-content p {
  font-size: 15px;
  color: #333;
  line-height: 1.7;
  margin-bottom: 16px;
}

.legal-content ul,
.legal-content ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal-content ul {
  list-style: disc;
}

.legal-content ol {
  list-style: decimal;
}

.legal-content li {
  font-size: 15px;
  color: #333;
  line-height: 1.7;
  margin-bottom: 8px;
}

.legal-content strong {
  font-weight: 700;
}

/* ────────────────────────────────────────────────────────────
   About Page
   ──────────────────────────────────────────────────────────── */
.about-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 0;
}

.about-content h2 {
  margin-top: 48px;
  margin-bottom: 16px;
}

.about-content p {
  font-size: 16px;
  color: #333;
  line-height: 1.7;
  margin-bottom: 20px;
}

.about-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 20px;
}

.about-content li {
  font-size: 16px;
  color: #333;
  line-height: 1.7;
  margin-bottom: 8px;
}

/* ────────────────────────────────────────────────────────────
   Badges
   ──────────────────────────────────────────────────────────── */
.badge {
  padding: 4px 12px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  border-radius: 4px;
  background: var(--color-primary);
  color: var(--color-white);
}

/* ────────────────────────────────────────────────────────────
   Image Placeholder
   ──────────────────────────────────────────────────────────── */
.img-placeholder {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 600;
  min-height: 300px;
}

/* ────────────────────────────────────────────────────────────
   Responsive
   ──────────────────────────────────────────────────────────── */

/* Tablet */
@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .step-connector {
    display: none;
  }

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

  .feature-row {
    gap: 40px;
  }
}

/* Small tablet */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-actions {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
    margin-left: auto;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero .hero-subtitle {
    font-size: 16px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature-row.reverse {
    direction: ltr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .container {
    padding: 0 24px;
  }

  .nav-inner {
    padding: 0 24px;
  }

  .section,
  .section-alt {
    padding: 40px 0;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .hero {
    padding: 32px 0;
  }

  .hero h1 {
    font-size: 28px;
  }

  .section,
  .section-alt {
    padding: 32px 0;
  }

  .container {
    padding: 0 20px;
  }

  .nav-inner {
    padding: 0 20px;
  }

  .card, .feature-card, .pain-card, .use-case-card, .guide-card {
    padding: 24px;
  }

  .pricing-card {
    padding: 28px;
  }

  .article-header h1 {
    font-size: 28px;
  }

  .article-content {
    font-size: 15px;
  }

  .cta-banner {
    padding: 48px 0;
  }
}