:root {
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-secondary: "Georgia", "Times New Roman", serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;

  --ease-in-quad: cubic-bezier(0.55, 0.085, 0.68, 0.53);
  --ease-in-cubic: cubic-bezier(0.55, 0.055, 0.675, 0.19);
  --ease-in-quart: cubic-bezier(0.895, 0.03, 0.685, 0.22);
  --ease-in-quint: cubic-bezier(0.755, 0.05, 0.855, 0.06);
  --ease-in-sine: cubic-bezier(0.47, 0, 0.745, 0.715);
  --ease-in-expo: cubic-bezier(0.95, 0.05, 0.795, 0.035);
  --ease-in-circ: cubic-bezier(0.6, 0.04, 0.98, 0.335);
  --ease-in-back: cubic-bezier(0.6, -0.28, 0.735, 0.045);
  --ease-out-quad: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out-cubic: cubic-bezier(0.215, 0.61, 0.355, 1);
  --ease-out-quart: cubic-bezier(0.165, 0.84, 0.44, 1);
  --ease-out-quint: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-out-sine: cubic-bezier(0.39, 0.575, 0.565, 1);
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-out-circ: cubic-bezier(0.075, 0.82, 0.165, 1);
  --ease-out-back: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-in-out-quad: cubic-bezier(0.455, 0.03, 0.515, 0.955);
  --ease-in-out-cubic: cubic-bezier(0.645, 0.045, 0.355, 1);
  --ease-in-out-quart: cubic-bezier(0.77, 0, 0.175, 1);
  --ease-in-out-quint: cubic-bezier(0.86, 0, 0.07, 1);
  --ease-in-out-sine: cubic-bezier(0.445, 0.05, 0.55, 0.95);
  --ease-in-out-expo: cubic-bezier(1, 0, 0, 1);
  --ease-in-out-circ: cubic-bezier(0.785, 0.135, 0.15, 0.86);
  --ease-in-out-back: cubic-bezier(0.68, -0.55, 0.265, 1.55);

  --transition-fast: all 0.2s var(--ease-out-quad);
  --transition-medium: all 0.4s var(--ease-in-out-cubic);
  --transition-slow: all 0.6s var(--ease-in-out-sine);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

@media (prefers-color-scheme: light) {
  :root {
    --color-background: #f9f9f9;
    --color-surface: #ffffff;
    --color-surface-accent: #f0f2f5;
    --color-primary: #0d2847;
    --color-secondary: #4a5568;
    --color-accent: #007bff;
    --color-accent-hover: #0056b3;
    --color-text-primary: #1a202c;
    --color-text-secondary: #4a5568;
    --color-border: #e2e8f0;
    --color-success: #28a745;
    --color-shadow: rgba(0, 0, 0, 0.05);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #121212;
    --color-surface: #1e1e1e;
    --color-surface-accent: #2a2a2a;
    --color-primary: #e0e0e0;
    --color-secondary: #a0aec0;
    --color-accent: #3391ff;
    --color-accent-hover: #57a5ff;
    --color-text-primary: #f7fafc;
    --color-text-secondary: #a0aec0;
    --color-border: #4a4a4a;
    --color-success: #38c172;
    --color-shadow: rgba(0, 0, 0, 0.25);
  }
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.65;
  font-weight: 400;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

h1 {
  font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw + 1rem, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw + 1rem, 2rem);
}

h4 {
  font-size: clamp(1.1rem, 2vw + 0.5rem, 1.25rem);
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
}

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

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

ul,
ol {
  margin-left: 1.5rem;
  margin-bottom: 1.25rem;
  padding-left: 1rem;
}

li {
  margin-bottom: 0.5rem;
  color: var(--color-text-secondary);
}

strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  position: relative;
  overflow: hidden;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 4rem;
}

.section-header p {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
}

.button-primary,
.button-secondary,
.button-accent {
  display: inline-block;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-medium);
  text-align: center;
  text-decoration: none;
}

.button-primary:hover,
.button-secondary:hover,
.button-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px -10px var(--color-shadow);
  text-decoration: none;
}

.button-primary {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

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

.button-secondary {
  background-color: var(--color-surface-accent);
  color: var(--color-primary);
  border-color: var(--color-border);
}

.button-secondary:hover {
  background-color: var(--color-surface);
  border-color: var(--color-accent);
}

.button-accent {
  background-color: var(--color-accent);
  color: #ffffff;
}

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

.button-accent.large {
  padding: 1.25rem 3rem;
  font-size: 1.1rem;
}

.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-medium);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background-color: rgba(18, 18, 18, 0.8);
  }
}

.main-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo a {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin: 0 1.5rem;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  position: relative;
  padding-bottom: 0.25rem;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: var(--transition-fast);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.hero {
  padding-top: 6rem;
  padding-bottom: 6rem;
  text-align: center;
}

.hero-content {
  max-width: 800px;
}

.hero .subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-top: 1.5rem;
  margin-bottom: 2.5rem;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.introduction {
  background-color: var(--color-surface);
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  text-align: center;
}

.intro-item svg {
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.intro-item h2 {
  font-size: 1.5rem;
}

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

.accordion {
  max-width: 900px;
  margin: 0 auto;
}

.accordion-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: 1.5rem;
  overflow: hidden;
  transition: var(--transition-medium);
}

.accordion-item:last-child {
  margin-bottom: 0;
}

.accordion-header {
  width: 100%;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
}

.accordion-header svg {
  transition: transform 0.3s var(--ease-in-out-cubic);
  color: var(--color-accent);
  flex-shrink: 0;
}

.accordion-header[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease-in-out-cubic),
    padding 0.5s var(--ease-in-out-cubic);
}

.content-wrapper {
  padding: 0 2rem 2rem 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.content-wrapper .content-image {
  width: 100%;
  max-width: 300px;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin: 0 auto;
}

.content-wrapper .text-content {
  font-size: 1rem;
}

.content-wrapper .text-content h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.content-wrapper .text-content p,
.content-wrapper .text-content ul,
.content-wrapper .text-content ol {
  color: var(--color-text-secondary);
}

.templates-download {
  background-color: var(--color-surface-accent);
}

.download-box {
  background-color: var(--color-surface);
  padding: 4rem;
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 20px 40px -15px var(--color-shadow);
}

.download-icon svg {
  color: var(--color-accent);
  margin-bottom: 2rem;
}

.download-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 450px;
  margin: 2rem auto 0;
}

.download-form input {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  transition: var(--transition-fast);
}

.download-form input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

.form-thank-you {
  padding: 2rem;
  border-radius: var(--radius-md);
  background-color: var(--color-surface-accent);
}

.form-thank-you h3 {
  color: var(--color-success);
}

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

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background-color: var(--color-surface);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.testimonial-card .quote {
  font-family: var(--font-secondary);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-text-primary);
  flex-grow: 1;
  position: relative;
  padding-left: 2rem;
}

.testimonial-card .quote::before {
  content: "“";
  position: absolute;
  left: 0;
  top: -0.5rem;
  font-size: 3rem;
  font-family: var(--font-secondary);
  color: var(--color-accent);
  opacity: 0.5;
}

.testimonial-card .author {
  margin-top: 1.5rem;
  margin-bottom: 0;
  font-weight: 600;
  color: var(--color-primary);
  text-align: right;
}

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

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.faq-item {
  padding: 2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.faq-item h4 {
  margin-bottom: 0.75rem;
}

.faq-item p {
  margin-bottom: 0;
}

.faq-link {
  text-align: center;
  margin-top: 3rem;
}

.faq-link a {
  font-weight: 600;
  font-size: 1.1rem;
}

.final-cta {
  background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
  text-align: center;
  color: #ffffff;
}

.final-cta h2,
.final-cta p {
  color: #ffffff;
}

.final-cta p {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.9;
  margin-bottom: 2.5rem;
}

.final-cta .button-accent {
  background-color: #ffffff;
  color: var(--color-primary);
}

.final-cta .button-accent:hover {
  background-color: var(--color-surface-accent);
  color: var(--color-primary);
}

.site-footer {
  background-color: var(--color-primary);
  color: var(--color-text-secondary);
  padding-top: 5rem;
  padding-bottom: 0;
  font-size: 0.95rem;
}

.site-footer h4 {
  color: var(--color-surface);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.site-footer p,
.site-footer a {
  color: var(--color-secondary);
  margin-bottom: 0;
}

.site-footer a:hover {
  color: #ffffff;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  padding-bottom: 4rem;
}

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

.footer-column li {
  margin-bottom: 0.75rem;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 1.5rem 0;
}

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

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 1.5rem;
  z-index: 2000;
  box-shadow: 0 -5px 20px var(--color-shadow);
  transform: translateY(100%);
  transition: transform 0.5s var(--ease-in-out-cubic);
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.cookie-content p {
  margin: 0;
  flex-grow: 1;
}

.cookie-content .button-primary {
  padding: 0.75rem 1.5rem;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out-cubic),
    transform 0.6s var(--ease-out-cubic);
}

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

@media screen and (min-width: 769px) {
  .content-wrapper {
    grid-template-columns: 300px 1fr;
  }
}

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

  .main-navigation .button-primary {
    display: none;
  }

  .hero-content {
    padding: 0 1rem;
  }

  .testimonial-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .download-box {
    padding: 2rem;
  }

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

  .footer-column ul {
    margin: 0 auto;
    max-width: 250px;
  }
}

@media screen and (max-width: 480px) {
  html {
    font-size: 14px;
  }

  section {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .cookie-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}