/* ==========================================================================
   ClinicNet Landing Page — Consolidated Stylesheet
   Replaces: style.css, custom-style.css, custom-styles.css
   ========================================================================== */

/* ==========================================================================
   1. CSS CUSTOM PROPERTIES & RESET
   ========================================================================== */

:root {
  /* Colors */
  --color-primary: #02b2c8;
  --color-primary-dark: #029aad;
  --color-primary-darker: #017e8e;
  --color-primary-light: #e8f9fb;
  --color-primary-subtle: #f0fafb;

  --color-bg: #ffffff;
  --color-bg-alt: #f8fafb;
  --color-bg-dark: #0b1a2b;

  --color-text-heading: #1a202c;
  --color-text-body: #4a5568;
  --color-text-muted: #718096;
  --color-text-white: #ffffff;

  --color-border: #e2e8f0;
  --color-border-light: #edf2f7;
  --color-success: #10b981;
  --color-error: #ef4444;

  /* Typography */
  --font-heading: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* 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;
  --space-4xl: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --header-height: 72px;

  /* Borders */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08), 0 4px 8px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(0, 0, 0, 0.05);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-body);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

ul {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.25;
  font-weight: 400;
}


/* ==========================================================================
   2. LAYOUT
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-3xl);
}

.section-title {
  font-size: 2.25rem;
  margin-bottom: var(--space-md);
  color: var(--color-text-heading);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}


/* ==========================================================================
   3. BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1.4;
}

.btn:focus-visible {
  outline: 3px solid rgba(2, 178, 200, 0.4);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-text-white);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-white);
}

.btn-secondary-outline {
  background-color: transparent;
  color: var(--color-text-body);
  border-color: var(--color-border);
}

.btn-secondary-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-text {
  background: none;
  color: var(--color-text-body);
  border: none;
  padding: 0.625rem 0.75rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
}

.btn-text:hover {
  color: var(--color-primary);
}

.btn-lg {
  padding: 0.8125rem 2rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}


/* ==========================================================================
   4. HEADER
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--transition-base);
  height: var(--header-height);
}

.site-header.header-scrolled {
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

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

.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-logo img {
  width: 40px;
  height: 40px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-links a {
  color: var(--color-text-body);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-subtle);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: var(--space-lg);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1001;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-heading);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.menu-open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.menu-open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* ==========================================================================
   5. HERO
   ========================================================================== */

.hero {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  background: linear-gradient(170deg, var(--color-bg) 0%, var(--color-primary-light) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 1rem;
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  color: var(--color-text-heading);
}

.hero-subtitle {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-screenshot {
  width: 100%;
  max-width: 540px;
}

.screenshot-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4xl) var(--space-xl);
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  min-height: 320px;
}


/* ==========================================================================
   6. SOCIAL PROOF BAR
   ========================================================================== */

.social-proof {
  padding: var(--space-2xl) 0;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.social-proof .container {
  text-align: center;
}

.social-proof-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.social-proof-icons {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  flex-wrap: wrap;
}

.proof-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.proof-icon span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 600;
}


/* ==========================================================================
   7. HOW IT WORKS
   ========================================================================== */

.how-it-works {
  background-color: var(--color-bg);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.step-card {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-text-white);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.step-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.step-description {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}


/* ==========================================================================
   8. FEATURES
   ========================================================================== */

.features {
  background-color: var(--color-bg-alt);
}

/* Hero features — alternating layout */
.hero-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-bottom: var(--space-4xl);
}

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

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

.hero-feature-title {
  font-size: 1.75rem;
  margin-bottom: var(--space-md);
}

.hero-feature-description {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.hero-feature-visual .screenshot-placeholder {
  min-height: 280px;
}

/* Secondary features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  background: var(--color-bg);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.feature-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.feature-card-title {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
  font-family: var(--font-body);
  font-weight: 700;
}

.feature-card-description {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}


/* ==========================================================================
   9. VIDEO SECTION
   ========================================================================== */

.video-section {
  background-color: var(--color-bg);
}

.video-wrapper {
  position: relative;
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding-bottom: 56.25%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}


/* ==========================================================================
   10. PRICING
   ========================================================================== */

.pricing {
  background-color: var(--color-bg-alt);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.pricing-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

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

.pricing-card-featured:hover {
  box-shadow: var(--shadow-xl);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary);
  color: var(--color-text-white);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-card-header {
  text-align: center;
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-xl);
}

.pricing-plan-name {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--color-text-heading);
  margin-bottom: var(--space-xs);
}

.pricing-plan-audience {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.pricing-currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-heading);
}

.pricing-amount {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-text-heading);
}

.pricing-period {
  font-size: 1rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.pricing-features {
  margin-bottom: var(--space-xl);
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: 0.4375rem 0;
  font-size: 0.9375rem;
  color: var(--color-text-body);
  line-height: 1.5;
}

.pricing-check {
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-note {
  font-size: 0.8125rem;
  color: var(--color-primary);
  line-height: 1.5;
  margin-bottom: var(--space-lg);
  text-align: center;
}


/* ==========================================================================
   11. TESTIMONIALS
   ========================================================================== */

.testimonials {
  background-color: var(--color-bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.testimonial-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: box-shadow var(--transition-base);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
}

.testimonial-quote {
  position: relative;
  margin-bottom: var(--space-xl);
}

.quote-icon {
  position: absolute;
  top: -8px;
  left: -4px;
}

.testimonial-quote p {
  font-size: 1rem;
  color: var(--color-text-body);
  line-height: 1.7;
  font-style: italic;
  padding-top: var(--space-lg);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  border: 2px solid var(--color-primary);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9375rem;
  color: var(--color-primary-dark);
  letter-spacing: 0.02em;
}

.testimonial-name {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-text-heading);
}

.testimonial-clinic {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}


/* ==========================================================================
   12. UPDATES / TIMELINE
   ========================================================================== */

.updates {
  background-color: var(--color-bg-alt);
}

.timeline {
  position: relative;
  max-width: 680px;
  margin: 0 auto;
  padding-left: var(--space-2xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-2xl);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: calc(-1 * var(--space-2xl) + 1px);
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 3px solid var(--color-bg-alt);
}

.timeline-date {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-xs);
}

.timeline-title {
  font-size: 1.125rem;
  font-family: var(--font-body);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.timeline-description {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}


/* ==========================================================================
   13. FAQ
   ========================================================================== */

.faq {
  background-color: var(--color-bg);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

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

.faq-item:first-child {
  border-top: 1px solid var(--color-border-light);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text-heading);
  list-style: none;
  transition: color var(--transition-fast);
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::marker {
  content: '';
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-chevron {
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

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

.faq-answer {
  padding-bottom: var(--space-lg);
}

.faq-answer p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}


/* ==========================================================================
   14. FINAL CTA
   ========================================================================== */

.final-cta {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #162d4a 100%);
  text-align: center;
}

.final-cta-inner {
  max-width: 640px;
  margin: 0 auto;
}

.final-cta-title {
  font-size: 2.25rem;
  color: var(--color-text-white);
  margin-bottom: var(--space-md);
}

.final-cta-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-2xl);
}

.final-cta .btn-primary {
  font-size: 1.0625rem;
  padding: 0.875rem 2.5rem;
}

.final-cta-contact {
  margin-top: var(--space-2xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.final-cta-contact > p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
}

.contact-options {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: var(--color-primary);
}

.contact-link svg {
  flex-shrink: 0;
}


/* ==========================================================================
   15. FOOTER
   ========================================================================== */

.site-footer {
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
  padding: var(--space-2xl) 0;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.footer-links {
  display: flex;
  gap: var(--space-xl);
}

.footer-links a {
  color: var(--color-text-body);
  font-size: 0.875rem;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-legal-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-legal-links a {
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--color-text-muted);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}


/* ==========================================================================
   16. MODAL (Clinic Locator)
   ========================================================================== */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: var(--space-lg);
}

.modal-content {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-xl);
  animation: modal-enter 0.25s ease-out;
}

@keyframes modal-enter {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
}

.modal-header h3 {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: var(--space-xs);
  line-height: 1;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-text-heading);
}

.modal-body {
  padding: var(--space-xl);
}

.modal-description {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: var(--space-xs);
}

.form-group input[type="email"] {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text-heading);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-group input[type="email"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(2, 178, 200, 0.15);
}

.form-group input[type="email"]::placeholder {
  color: var(--color-text-muted);
}

.form-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
}

.error-message {
  color: var(--color-error);
  font-size: 0.8125rem;
  margin-top: var(--space-xs);
}

.success-message {
  text-align: center;
  padding: var(--space-lg);
}

.success-message p {
  color: var(--color-success);
  font-weight: 600;
}


/* ==========================================================================
   17. CSS-ONLY ANIMATIONS (Scroll reveal via IntersectionObserver)
   ========================================================================== */

.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}


/* ==========================================================================
   18. RESPONSIVE — TABLET
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }

  .hero-subtitle {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-visual {
    order: -1;
  }

  .hero-screenshot {
    max-width: 480px;
  }

  .hero-feature {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    text-align: center;
  }

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

  .steps-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-brand {
    flex-direction: column;
  }

  .footer-nav {
    justify-content: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-legal-links {
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
  }
}


/* ==========================================================================
   19. RESPONSIVE — MOBILE
   ========================================================================== */

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  /* Mobile menu */
  .mobile-menu-toggle {
    display: flex;
  }

  /* The header's backdrop-filter makes it the containing block for fixed
     descendants, so anchor the menu to the header bottom with absolute
     positioning instead of trying to position it against the viewport. */
  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: calc(100vh - var(--header-height) - var(--promo-height));
    height: calc(100dvh - var(--header-height) - var(--promo-height));
    background-color: var(--color-bg);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-xl);
    gap: var(--space-lg);
    overflow-y: auto;
  }

  .header-nav.nav-open {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links a {
    padding: var(--space-md);
    font-size: 1.0625rem;
    border-radius: var(--radius-sm);
  }

  .nav-actions {
    flex-direction: column;
    margin-left: 0;
    gap: var(--space-md);
  }

  .nav-actions .btn {
    width: 100%;
    justify-content: center;
  }

  /* Hero */
  .hero {
    padding-top: calc(var(--header-height) + var(--space-2xl));
    padding-bottom: var(--space-2xl);
  }

  .hero-title {
    font-size: 2.125rem;
  }

  .hero-subtitle {
    font-size: 1.0625rem;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .screenshot-placeholder {
    min-height: 200px;
    padding: var(--space-2xl) var(--space-lg);
  }

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

  .hero-feature-title {
    font-size: 1.5rem;
  }

  .hero-feature-visual .screenshot-placeholder {
    min-height: 200px;
  }

  /* Pricing */
  .pricing-amount {
    font-size: 2.75rem;
  }

  /* Social proof */
  .social-proof-icons {
    gap: var(--space-xl);
  }

  /* Final CTA */
  .final-cta-title {
    font-size: 1.75rem;
  }

  .contact-options {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }

  /* Steps — horizontal on mobile */
  .steps-grid {
    max-width: 100%;
  }

  /* Footer */
  .footer-links {
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .final-cta-title {
    font-size: 1.5rem;
  }

  .pricing-amount {
    font-size: 2.5rem;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
  }
}


/* ==========================================================================
   20. PROMO BAR, COUNTDOWN & DISCOUNT BADGES
   ========================================================================== */

:root {
  --promo-height: 48px;
}

.promo-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1002;
  height: var(--promo-height);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-lg);
  background-color: var(--color-bg-dark);
  color: var(--color-text-white);
}

.promo-bar-inner {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.promo-text {
  font-size: 0.875rem;
  font-weight: 600;
}

.promo-countdown {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-variant-numeric: tabular-nums;
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 2rem;
}

.countdown-value {
  font-weight: 800;
  font-size: 0.9375rem;
  line-height: 1.1;
}

.countdown-label {
  font-size: 0.5625rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
  line-height: 1;
}

.countdown-sep {
  font-weight: 700;
  opacity: 0.5;
  margin-top: -0.75rem;
}

.discount-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-error);
  color: var(--color-text-white);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.promo-bar-badge {
  position: absolute;
  right: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
}

/* Offset fixed header and hero to make room for the promo bar */
.site-header {
  top: var(--promo-height);
}

.hero {
  padding-top: calc(var(--promo-height) + var(--header-height) + var(--space-3xl));
}

/* Hero adjustments: badge next to CTAs, embedded demo video */
.hero-ctas {
  align-items: center;
}

.hero-video {
  width: 100%;
  max-width: 540px;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero-video iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Pricing: struck-through old price + discount badge */
.pricing-card-header .discount-badge {
  margin-bottom: var(--space-md);
}

.pricing-price-old {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.pricing-price-old s {
  text-decoration-thickness: 2px;
  text-decoration-color: var(--color-error);
}

.pricing-price-old-period {
  font-size: 0.875rem;
}

/* Final CTA: button + badge row */
.final-cta-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  :root {
    --promo-height: 44px;
  }

  .promo-bar {
    gap: var(--space-md);
    padding: 0 var(--space-md);
  }

  .promo-text {
    display: none;
  }

  .promo-bar-badge {
    position: static;
    transform: none;
    order: -1;
  }

  .hero {
    padding-top: calc(var(--promo-height) + var(--header-height) + var(--space-2xl));
  }
}

/* Feature screenshots (real app captures) */
.hero-feature-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-lg);
}