/* style.css */

/* 1. CSS Variables and Theming
-------------------------------------------------- */
:root {
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol";
  --font-secondary: "Roboto Slab", serif;

  /* Light Theme */
  --color-primary: #007bff;
  --color-primary-dark: #0056b3;
  --color-secondary: #17a2b8;
  --color-text: #343a40;
  --color-text-muted: #6c757d;
  --color-background: #ffffff;
  --color-surface: #f8f9fa;
  --color-border: #dee2e6;
  --color-success: #28a745;
  --color-error: #dc3545;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
  --border-radius: 8px;
  --transition-speed: 0.3s;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #0091ff;
    --color-primary-dark: #33aaff;
    --color-secondary: #20c997;
    --color-text: #e9ecef;
    --color-text-muted: #adb5bd;
    --color-background: #121212;
    --color-surface: #1e1e1e;
    --color-border: #495057;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  }
}

/* 2. Base and Reset Styles
  -------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-speed) ease,
    color var(--transition-speed) ease;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

h1 {
  font-size: 3.052rem;
}
h2 {
  font-size: 2.441rem;
}
h3 {
  font-size: 1.953rem;
}
h4 {
  font-size: 1.563rem;
}

p {
  margin-bottom: 1.25rem;
  max-width: 75ch;
}

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

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

ul,
ol {
  list-style-position: inside;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.5rem;
}

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

/* 3. Layout and Container
  -------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
}

/* 4. Buttons
  -------------------------------------------------- */
.button {
  display: inline-block;
  font-weight: 600;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  border: 2px solid transparent;
  padding: 0.8rem 1.75rem;
  font-size: 1rem;
  border-radius: var(--border-radius);
  transition: all var(--transition-speed) ease-in-out;
  text-decoration: none;
}

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

.button-primary:hover {
  background-color: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

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

.button-secondary:hover {
  background-color: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
  text-decoration: none;
}

.button-large {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

.button-full {
  display: block;
  width: 100%;
}

/* 5. Header and Navigation
  -------------------------------------------------- */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: background-color var(--transition-speed) ease,
    border-color var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

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

.logo {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-secondary);
  text-decoration: none;
  color: var(--color-text);
}

.logo span {
  color: var(--color-primary);
}

.logo:hover {
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 2.5rem;
}

.nav-menu a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-speed) ease-in-out;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-cta {
  display: block;
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

/* 6. Hero Section
  -------------------------------------------------- */
.hero {
  background-color: var(--color-surface);
  padding: 8rem 0;
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

.hero-text .subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
}

.hero-cta-group {
  display: flex;
  gap: 1.5rem;
}

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

.hero-image-container img {
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  transform: perspective(1500px) rotateY(-15deg) rotateX(5deg);
  transition: transform 0.5s ease-out;
}

.hero-image-container:hover img {
  transform: perspective(1500px) rotateY(0) rotateX(0);
}

/* 7. Solutions Section
  -------------------------------------------------- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.solution-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  text-align: center;
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.solution-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
}

.solution-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto 1.5rem auto;
}

.solution-icon svg {
  width: 28px;
  height: 28px;
}

.solution-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

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

/* 8. How It Works Section
  -------------------------------------------------- */
.section-howitworks {
  background-color: var(--color-surface);
}

.howitworks-steps {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.howitworks-steps::before {
  content: "";
  position: absolute;
  top: 1.5rem;
  left: 2rem;
  bottom: 1.5rem;
  width: 4px;
  background-color: var(--color-primary);
  opacity: 0.2;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  position: relative;
  margin-bottom: 3rem;
}

.step:last-child {
  margin-bottom: 0;
}

.step-number {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
  font-weight: 700;
  font-family: var(--font-secondary);
  border: 4px solid var(--color-surface);
  z-index: 1;
}

.step-content h4 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.step-content p {
  color: var(--color-text-muted);
}

/* 9. Features (Tabs) Section
  -------------------------------------------------- */
.tabs-container {
  max-width: 900px;
  margin: 0 auto;
}

.tabs-nav {
  display: flex;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
  gap: 1rem;
}

.tab-button {
  padding: 1rem 1.5rem;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 3px solid transparent;
  transition: color var(--transition-speed) ease,
    border-color var(--transition-speed) ease;
}

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

.tab-button.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.5s ease-in-out;
}

.tab-content h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.tab-content ul {
  padding-left: 1.5rem;
}

.tab-content li {
  padding-left: 0.5rem;
  position: relative;
}

.tab-content li::before {
  content: "✓";
  position: absolute;
  left: -1rem;
  color: var(--color-success);
  font-weight: bold;
}

/* 10. CTA Form Section
  -------------------------------------------------- */
.section-cta-form {
  background-color: var(--color-primary);
  color: #fff;
}

.section-cta-form h2 {
  color: #fff;
}

.section-cta-form p {
  color: rgba(255, 255, 255, 0.85);
}

.cta-form-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.cta-form-block {
  background-color: var(--color-surface);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
}

#quick-register-form h3 {
  color: var(--color-text);
  text-align: center;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.form-group input[type="email"],
.form-group input[type="password"] {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-background);
  color: var(--color-text);
  font-size: 1rem;
  transition: border-color var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

.form-terms {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.form-terms input[type="checkbox"] {
  margin-top: 0.3rem;
}

.form-terms label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

#form-thank-you h4,
#form-thank-you p {
  color: var(--color-text);
  text-align: center;
}

/* 11. Testimonials Section
  -------------------------------------------------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--border-radius);
  border-left: 5px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.testimonial-text {
  flex-grow: 1;
  font-style: italic;
  color: var(--color-text-muted);
  position: relative;
  padding-left: 2rem;
}

.testimonial-text::before {
  content: "“";
  font-family: Georgia, serif;
  font-size: 4rem;
  color: var(--color-primary);
  opacity: 0.2;
  position: absolute;
  top: -1rem;
  left: -0.5rem;
}

.testimonial-author {
  margin-top: 1.5rem;
  text-align: right;
}

.author-name {
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
}

.author-title {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* 12. FAQ (Accordion) Section
  -------------------------------------------------- */
.section-faq {
  background-color: var(--color-surface);
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  overflow: hidden;
}

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

.accordion-header {
  width: 100%;
  background-color: var(--color-background);
  border: none;
  padding: 1.5rem;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text);
  transition: background-color var(--transition-speed) ease;
}

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

.accordion-item.active .accordion-header {
  color: var(--color-primary);
}

.accordion-header svg {
  transition: transform var(--transition-speed) ease;
  flex-shrink: 0;
  margin-left: 1rem;
}

.accordion-item.active .accordion-header svg {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.accordion-content p {
  padding: 0 1.5rem 1.5rem 1.5rem;
  margin: 0;
}

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

/* 13. Footer
  -------------------------------------------------- */
.site-footer {
  background-color: var(--color-text);
  color: rgba(255, 255, 255, 0.8);
  padding: 4rem 0 2rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-column h4 {
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.footer-column.footer-about .logo {
  color: #fff;
  font-size: 2rem;
}

.footer-column.footer-about p {
  font-size: 0.95rem;
  margin-top: 1rem;
}

.footer-links {
  list-style: none;
  padding: 0;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
}

.footer-links a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-contact address,
.footer-contact p {
  font-style: normal;
  font-size: 0.95rem;
  line-height: 1.8;
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-contact a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: 1.5rem;
}

.social-links a {
  color: rgba(255, 255, 255, 0.8);
}

.social-links a:hover {
  color: #fff;
}

/* 14. Animations and Utility Classes
  -------------------------------------------------- */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease-out;
}

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

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

/* 15. Responsive Design
  -------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    order: 2;
  }

  .hero-image-container {
    order: 1;
    margin-bottom: 2rem;
  }

  .hero-image-container img {
    transform: none;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .cta-form-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .cta-text-block {
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-about,
  .footer-contact {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  h1 {
    font-size: 2.5rem;
  }
  .hero-text h1 {
    font-size: 2.8rem;
  }
  h2 {
    font-size: 2rem;
  }

  section {
    padding: 4rem 0;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 71px;
    left: 0;
    width: 100%;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    text-align: center;
    box-shadow: var(--shadow-md);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu li {
    margin: 0;
  }

  .nav-menu a {
    padding: 1rem;
    display: block;
    width: 100%;
  }

  .nav-menu a::after {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .mobile-nav-toggle {
    display: block;
  }

  .mobile-nav-toggle svg {
    width: 32px;
    height: 32px;
    color: var(--color-text);
  }

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

  .footer-about,
  .footer-contact {
    grid-column: span 1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-cta-group {
    flex-direction: column;
  }
}

/* 16. Cookie Banner
  -------------------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  color: var(--color-text);
  padding: 1.5rem;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 2000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  transform: translateY(100%);
  animation: slideUp 0.5s ease-out forwards;
}

@keyframes slideUp {
  to {
    transform: translateY(0);
  }
}

.cookie-banner-content p {
  margin: 0;
  color: var(--color-text-muted);
}

.cookie-banner-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.cookie-banner.hidden {
  display: none;
}

@media (max-width: 768px) {
  .cookie-banner {
    flex-direction: column;
    text-align: center;
  }
}