/* ABOUTME: AuraSmart landing page stylesheet */
/* ABOUTME: Modern CSS variables + responsive layout, no preprocessor, no frameworks */

/* ============================================
   1. Design Tokens (CSS Variables)
   ============================================ */
:root {
  /* Colors */
  --primary: #0f172a;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border-color: #e2e8f0;
  --trust-bg: #1e293b;
  --trust-highlight: #38bdf8;
  --trust-text: #94a3b8;
  --star: #f59e0b;
  --verified: #10b981;
  --icon-bg: #eff6ff;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-hero: 16px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
  --shadow-hero: 0 20px 40px rgba(0, 0, 0, 0.12);
}

/* ============================================
   2. Reset & Base
   ============================================ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Smooth scroll for all in-page anchor links (#features, #ecosystem, #reviews, #cta) */
html {
  scroll-behavior: smooth;
  /* Keep anchored sections clear of the sticky header */
  scroll-padding-top: 5.5rem;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ============================================
   3. Header & Navigation
   ============================================ */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  object-fit: cover;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

/* ============================================
   4. CTA Button
   ============================================ */
.btn-cta {
  background-color: var(--accent);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  display: inline-block;
  transition: background-color 0.2s, transform 0.1s;
  border: none;
  cursor: pointer;
  font: inherit;
  font-size: 1rem;
}

.btn-cta:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-cta-lg {
  font-size: 1.1rem;
  padding: 1rem 2rem;
}

/* ============================================
   5. Hero Section
   ============================================ */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3rem;
  line-height: 1.15;
  color: var(--primary);
  margin-bottom: 1.25rem;
  font-weight: 800;
}

.hero-content p {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-badges {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
  align-items: center;
  flex-wrap: wrap;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.hero-image {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-hero);
  box-shadow: var(--shadow-hero);
}

/* ============================================
   6. Ecosystem Banner
   ============================================ */
.ecosystem-section {
  background-color: var(--bg-white);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 2rem;
  text-align: center;
}

.ecosystem-title {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.ecosystem-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.ecosystem-logo {
  font-weight: 700;
  color: var(--text-muted);
  font-size: 1.1rem;
  opacity: 0.7;
}

/* ============================================
   7. Features Grid
   ============================================ */
.features-section {
  max-width: 1200px;
  margin: 5rem auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3.5rem auto;
}

.section-header h2 {
  font-size: 2.25rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

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

.feature-card {
  background-color: var(--bg-white);
  padding: 2.5rem 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--primary);
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ============================================
   8. Trust & Guarantee Section
   ============================================ */
.trust-section {
  background-color: var(--trust-bg);
  color: #ffffff;
  padding: 5rem 2rem;
  margin-top: 5rem;
}

.trust-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  text-align: center;
}

.trust-item h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--trust-highlight);
}

.trust-item p {
  color: var(--trust-text);
  font-size: 0.95rem;
}

/* ============================================
   9. Testimonials Section
   ============================================ */
.testimonials-section {
  max-width: 1200px;
  margin: 5rem auto;
  padding: 0 2rem;
}

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

.testimonial-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
}

.stars {
  color: var(--star);
  margin-bottom: 1rem;
}

.testimonial-text {
  font-style: italic;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}

.testimonial-author {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary);
}

.verified-tag {
  color: var(--verified);
  font-size: 0.8rem;
  font-weight: 500;
  margin-left: 0.5rem;
}

/* ============================================
   10. Footer
   ============================================ */
footer {
  background-color: var(--bg-white);
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem;
  padding-bottom: calc(3rem + 5.5rem);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-links {
  margin-top: 0.5rem;
  color: var(--trust-text);
}

/* ============================================
   11. Limited Offer Announcement Bar
   ============================================ */
.announcement-bar {
  background-color: var(--primary);
  color: #ffffff;
  text-align: center;
  padding: 0.65rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.announcement-bar strong {
  color: var(--trust-highlight);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ============================================
   12. FAQ Accordion
   ============================================ */
.faq-section {
  max-width: 800px;
  margin: 5rem auto;
  padding: 0 2rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.faq-item.open {
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--primary);
  text-align: left;
}

.faq-chevron {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--icon-bg);
  color: var(--accent);
  border-radius: var(--radius-sm);
  transition: transform 0.35s ease;
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

.faq-answer-inner {
  overflow: hidden;
}

.faq-answer p {
  padding: 0 1.5rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  grid-template-rows: 1fr;
}

/* ============================================
   13. Sticky Bottom Buy Bar
   ============================================ */
.sticky-buy-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background-color: var(--bg-white);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.08);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  transform: translateY(100%);
  transition: transform 0.35s ease;
}

.sticky-buy-bar.visible {
  transform: translateY(0);
}

.sticky-bar-thumb {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 1px solid var(--border-color);
}

.sticky-bar-info {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

.sticky-bar-name {
  font-weight: 600;
  color: var(--primary);
  font-size: 0.95rem;
}

.sticky-bar-price {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.sticky-bar-price strong {
  color: var(--accent);
  font-size: 1.05rem;
}

.sticky-bar-price s {
  opacity: 0.6;
  margin-left: 0.35rem;
}

.btn-cta-sm {
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
}

/* ============================================
   14. 30-Second Smart Home Quiz
   ============================================ */
.quiz-section {
  max-width: 760px;
  margin: 5rem auto;
  padding: 0 2rem;
}

.quiz-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
  overflow: hidden;
}

.quiz-progress {
  height: 6px;
  background-color: var(--bg-light);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.quiz-progress-fill {
  height: 100%;
  background-color: var(--accent);
  border-radius: 999px;
  transition: width 0.4s ease;
}

.quiz-step {
  display: none;
}

.quiz-step.active {
  display: block;
  animation: fade-in-up 0.35s ease;
}

.quiz-question-title {
  font-size: 1.35rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--bg-light);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font: inherit;
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s, background-color 0.15s, transform 0.1s;
}

.quiz-option:hover {
  border-color: var(--accent);
  background-color: var(--icon-bg);
  transform: translateY(-1px);
}

.quiz-option-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.quiz-loading {
  text-align: center;
  padding: 2.5rem 0 1.5rem;
  animation: fade-in 0.3s ease;
}

.quiz-spinner {
  width: 44px;
  height: 44px;
  margin: 0 auto 1.25rem;
  border: 4px solid var(--icon-bg);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.quiz-loading-text {
  font-weight: 600;
  color: var(--primary);
  font-size: 1.05rem;
}

.quiz-result {
  text-align: center;
  animation: fade-in-up 0.4s ease;
}

.quiz-result-badge {
  display: inline-block;
  background-color: var(--icon-bg);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.quiz-result-plan {
  font-size: 1.75rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.quiz-result-desc {
  color: var(--text-muted);
  font-size: 0.975rem;
  max-width: 480px;
  margin: 0 auto 1.75rem;
}

.quiz-coupon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  max-width: 340px;
  margin: 0 auto 1rem;
  padding: 0.9rem 1.25rem;
  border: 2px dashed var(--accent);
  border-radius: var(--radius-md);
  background-color: rgba(37, 99, 235, 0.04);
}

.quiz-coupon-code {
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.quiz-coupon-copy {
  background: none;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.8rem;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
}

.quiz-coupon-copy:hover {
  background-color: var(--accent);
  color: #fff;
}

.quiz-result-fineprint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}

.quiz-result-cta {
  margin-bottom: 1rem;
}

.quiz-retake {
  display: block;
  margin: 0 auto;
  background: none;
  border: none;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: underline;
}

.quiz-retake:hover {
  color: var(--accent);
}

/* ============================================
   15. Real-time Savings Calculator
   ============================================ */
.calculator-section {
  max-width: 760px;
  margin: 5rem auto;
  padding: 0 2rem;
}

.calc-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
}

.calc-bill {
  text-align: center;
  margin-bottom: 1.75rem;
}

.calc-bill-value {
  display: block;
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}

.calc-bill-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.calc-range {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
  height: 1.5rem;
}

.calc-scale {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

.calc-result {
  margin-top: 1.75rem;
  padding: 1.25rem;
  background-color: var(--icon-bg);
  border-radius: var(--radius-md);
  text-align: center;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 500;
}

.calc-result strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

/* ============================================
   16. Customer Signup Modal
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  position: relative;
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
  padding: 2.5rem;
  transform: translateY(16px) scale(0.96);
  transition: transform 0.25s ease;
}

.modal-overlay.open .modal-card {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 50%;
  background: var(--bg-light);
  color: var(--text-muted);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
}

.modal-close:hover {
  background: var(--border-color);
  color: var(--primary);
}

.modal-logo {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  object-fit: cover;
  margin: 0 auto 1.25rem;
}

.modal-title {
  font-size: 1.45rem;
  color: var(--primary);
  text-align: center;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.modal-subtitle {
  color: var(--text-muted);
  font-size: 0.925rem;
  text-align: center;
  margin-bottom: 1.75rem;
}

.modal-field {
  display: block;
  margin-bottom: 1rem;
}

.modal-field span {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

.modal-field input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.95rem;
  color: var(--text-main);
  background: var(--bg-light);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.modal-field input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.modal-submit {
  width: 100%;
  margin-top: 0.5rem;
}

.modal-fineprint {
  margin-top: 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.modal-success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background-color: var(--verified);
  color: #fff;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pop-in 0.35s ease;
}

/* ============================================
   17. Live Purchase Notification Toast
   ============================================ */
.live-toast {
  position: fixed;
  left: 1.25rem;
  bottom: 6.5rem;
  z-index: 80;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  max-width: 340px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 0.85rem 1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s ease;
}

.live-toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.live-toast-pulse {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--verified);
  animation: pulse 1.6s ease infinite;
}

.live-toast-body {
  min-width: 0;
}

.live-toast-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1.4;
}

.live-toast-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.live-toast-close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem;
}

.live-toast-close:hover {
  color: var(--primary);
}

/* ============================================
   18. Keyframes
   ============================================ */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
  50% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pop-in {
  0% { opacity: 0; transform: scale(0.5); }
  70% { transform: scale(1.08); }
  100% { opacity: 1; transform: scale(1); }
}

/* ============================================
   19. Reduced Motion Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .faq-answer,
  .faq-chevron,
  .sticky-buy-bar,
  .quiz-progress-fill,
  .modal-overlay,
  .modal-card,
  .live-toast,
  .quiz-step.active,
  .quiz-loading,
  .quiz-result,
  .modal-success-icon,
  .live-toast-pulse,
  .quiz-spinner {
    transition: none;
    animation: none;
  }
}

/* ============================================
   20. Responsive — Tablet & Mobile (<= 900px)
   ============================================ */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 3rem 1.5rem;
  }

  .hero-badges {
    justify-content: center;
  }

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

  .trust-container {
    grid-template-columns: 1fr;
  }

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

/* ============================================
   21. Responsive — Small Mobile (<= 640px)
   ============================================ */
@media (max-width: 640px) {
  header {
    padding: 0.875rem 1.25rem;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding: 2.5rem 1.25rem;
  }

  .hero-content h1 {
    font-size: 2.25rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .section-header h2 {
    font-size: 1.75rem;
  }

  .features-section,
  .testimonials-section {
    margin: 3.5rem auto;
    padding: 0 1.25rem;
  }

  .trust-section {
    padding: 3.5rem 1.25rem;
  }

  .ecosystem-logos {
    gap: 1.75rem;
  }

  .announcement-bar {
    padding: 0.6rem 1rem;
  }

  .faq-section {
    margin: 3.5rem auto;
    padding: 0 1.25rem;
  }

  .faq-question {
    padding: 1rem 1.25rem;
    font-size: 1rem;
  }

  .faq-answer p {
    padding: 0 1.25rem 1.25rem;
  }

  /* Quiz */
  .quiz-section {
    margin: 3.5rem auto;
    padding: 0 1.25rem;
  }

  .quiz-card {
    padding: 1.75rem 1.25rem;
  }

  .quiz-question-title {
    font-size: 1.15rem;
  }

  /* Calculator */
  .calculator-section {
    margin: 3.5rem auto;
    padding: 0 1.25rem;
  }

  .calc-card {
    padding: 1.75rem 1.25rem;
  }

  .calc-bill-value {
    font-size: 2.25rem;
  }

  /* Compact sticky bar layout */
  .sticky-buy-bar {
    padding: 0.6rem 1rem;
    gap: 0.75rem;
    justify-content: space-between;
  }

  .sticky-bar-name {
    font-size: 0.85rem;
  }

  .btn-cta-sm {
    padding: 0.55rem 1.1rem;
    font-size: 0.85rem;
  }

  /* Modal */
  .modal-card {
    padding: 2rem 1.5rem;
  }

  /* Toast */
  .live-toast {
    left: 1rem;
    right: 1rem;
    max-width: none;
    bottom: 6rem;
  }
}