/* style.css */

:root {
  /* Light Theme Palette */
  --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-family-serif: "Georgia", "Times New Roman", serif;

  --color-background-light: #f8f9fa;
  --color-surface-light: #ffffff;
  --color-primary-light: #005f73;
  --color-secondary-light: #0a9396;
  --color-accent-light: #ee9b00;
  --color-text-primary-light: #212529;
  --color-text-secondary-light: #495057;
  --color-border-light: #dee2e6;
  --color-success-light: #2a9d8f;
  --color-shadow-light: rgba(0, 0, 0, 0.08);

  /* Dark Theme Palette */
  --color-background-dark: #121212;
  --color-surface-dark: #1e1e1e;
  --color-primary-dark: #94d2bd;
  --color-secondary-dark: #ade8f4;
  --color-accent-dark: #ffbe0b;
  --color-text-primary-dark: #e0e0e0;
  --color-text-secondary-dark: #a8a8a8;
  --color-border-dark: #444444;
  --color-success-dark: #52b788;
  --color-shadow-dark: rgba(0, 0, 0, 0.25);

  /* Assign default theme */
  --color-background: var(--color-background-light);
  --color-surface: var(--color-surface-light);
  --color-primary: var(--color-primary-light);
  --color-secondary: var(--color-secondary-light);
  --color-accent: var(--color-accent-light);
  --color-text-primary: var(--color-text-primary-light);
  --color-text-secondary: var(--color-text-secondary-light);
  --color-border: var(--color-border-light);
  --color-success: var(--color-success-light);
  --color-shadow: var(--color-shadow-light);

  /* Typography */
  --font-size-xs: 0.75rem; /* 12px */
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-base: 1rem; /* 16px */
  --font-size-lg: 1.125rem; /* 18px */
  --font-size-xl: 1.25rem; /* 20px */
  --font-size-2xl: 1.5rem; /* 24px */
  --font-size-3xl: 2rem; /* 32px */
  --font-size-4xl: 2.5rem; /* 40px */
  --font-size-5xl: 3.5rem; /* 56px */

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 5rem;

  /* Other properties */
  --border-radius: 8px;
  --transition-speed: 0.3s;
  --container-width: 1200px;
  --header-height: 80px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: var(--color-background-dark);
    --color-surface: var(--color-surface-dark);
    --color-primary: var(--color-primary-dark);
    --color-secondary: var(--color-secondary-dark);
    --color-accent: var(--color-accent-dark);
    --color-text-primary: var(--color-text-primary-dark);
    --color-text-secondary: var(--color-text-secondary-dark);
    --color-border: var(--color-border-dark);
    --color-success: var(--color-success-dark);
    --color-shadow: var(--color-shadow-dark);
  }
}

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

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

body {
  font-family: var(--font-family-sans);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  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 {
  color: var(--color-text-primary);
  line-height: 1.3;
  font-weight: 700;
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  max-width: 75ch;
}

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

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

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

ul,
ol {
  list-style-position: inside;
  padding-left: var(--spacing-md);
}

ul {
  list-style-type: none;
  padding-left: 0;
}

ul li {
  padding-left: 1.5em;
  position: relative;
  margin-bottom: var(--spacing-sm);
}

ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: bold;
}

blockquote {
  border-left: 4px solid var(--color-accent);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  background-color: var(--color-surface);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  font-style: italic;
}

blockquote p {
  margin-bottom: var(--spacing-sm);
}

blockquote footer {
  font-style: normal;
  font-weight: 600;
  color: var(--color-text-primary);
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

section {
  padding-top: var(--spacing-4xl);
  padding-bottom: var(--spacing-4xl);
  position: relative;
}

.section-intro {
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

/* Header */
.main-header {
  background-color: var(--color-surface);
  height: var(--header-height);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px var(--color-shadow);
  transition: background-color var(--transition-speed) ease;
}

.main-header .container {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.logo:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.main-nav ul {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.main-nav a {
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: var(--font-size-base);
  text-decoration: none;
  position: relative;
  padding-bottom: var(--spacing-xs);
}

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

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-text-primary);
}

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

/* CTA Buttons */
.cta-button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-primary);
  color: var(--color-surface);
  font-weight: 700;
  border-radius: var(--border-radius);
  text-decoration: none;
  transition: background-color var(--transition-speed) ease,
    transform var(--transition-speed) ease;
  border: 2px solid transparent;
}

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

.header-cta {
  font-size: var(--font-size-sm);
}

/* Text Links */
.text-link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
}

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

/* Hero Section */
body {
  padding-top: var(--header-height);
}

.hero {
  background-color: var(--color-surface);
  text-align: center;
  padding: var(--spacing-4xl) 0;
}

.hero h1 {
  font-size: var(--font-size-5xl);
  max-width: 20ch;
  margin: 0 auto var(--spacing-lg);
}

.hero .subtitle {
  font-size: var(--font-size-xl);
  max-width: 70ch;
  margin: 0 auto var(--spacing-2xl);
  color: var(--color-text-secondary);
}

.hero-cta {
  font-size: var(--font-size-lg);
  padding: var(--spacing-md) var(--spacing-2xl);
}

/* Solutions Overview Section */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.solution-card {
  background-color: var(--color-surface);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 15px var(--color-shadow);
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.solution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px var(--color-shadow);
}

.solution-card svg {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

.solution-card h3 {
  font-size: var(--font-size-xl);
}

/* How It Works Section */
.how-it-works {
  background-color: var(--color-surface);
}

.steps-container {
  position: relative;
  margin-top: var(--spacing-2xl);
}

.steps-container::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
  transform: translateX(-50%);
}

.step {
  display: flex;
  align-items: flex-start;
  position: relative;
  padding-left: 60px;
  margin-bottom: var(--spacing-2xl);
}

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

.step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  border: 4px solid var(--color-background);
}

.step-content h4 {
  font-size: var(--font-size-lg);
}

/* Features Tabs Section */
.tabs-navigation {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-2xl);
  border-bottom: 1px solid var(--color-border);
}

.tab-link {
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  background: none;
  cursor: pointer;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-secondary);
  position: relative;
  transition: color var(--transition-speed) ease;
}

.tab-link::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background-color: var(--color-primary);
  transition: width var(--transition-speed) ease;
}

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

.tab-link.active {
  color: var(--color-text-primary);
}

.tab-link.active::after {
  width: 100%;
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Target Audience Section */
.target-audience .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.audience-image img {
  border-radius: var(--border-radius);
  box-shadow: 0 10px 30px var(--color-shadow);
}

.target-audience ul li {
  padding-left: 2em;
}

.target-audience ul li::before {
  content: "→";
}

/* Case Study Section */
.case-study {
  background-color: var(--color-surface);
}

/* Pricing Plans Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  align-items: center;
}

.plan-card {
  background-color: var(--color-surface);
  padding: var(--spacing-2xl);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  text-align: center;
  transition: all var(--transition-speed) ease;
}

.plan-card.popular {
  border: 2px solid var(--color-primary);
  transform: scale(1.05);
  box-shadow: 0 10px 40px var(--color-shadow);
}

.plan-card h3 {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
}

.plan-card .price {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  margin: var(--spacing-md) 0;
  color: var(--color-text-primary);
}

.plan-card .price span {
  font-size: var(--font-size-base);
  font-weight: 400;
  color: var(--color-text-secondary);
}

.plan-card .plan-description {
  min-height: 60px;
  color: var(--color-text-secondary);
}

.plan-card ul {
  text-align: left;
  margin: var(--spacing-lg) 0;
  padding: 0;
}

.plan-card ul li {
  padding-left: 2em;
}

.plan-card ul li::before {
  content: "✓";
  color: var(--color-success);
}

.plan-cta {
  width: 100%;
  margin-top: var(--spacing-lg);
}

/* Testimonials Section */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.testimonial blockquote {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 4px 15px var(--color-shadow);
}

.testimonial footer {
  margin-top: var(--spacing-md);
}

/* Team Section */
.team {
  background-color: var(--color-surface);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

.team-member {
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
}

.team-member p {
  font-size: var(--font-size-sm);
}

.team-link-wrapper {
  text-align: center;
  margin-top: var(--spacing-2xl);
}

/* FAQ Section */
.accordion-item {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-md);
}

.accordion-header {
  width: 100%;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  cursor: pointer;
  text-align: left;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

.accordion-header svg {
  transition: transform var(--transition-speed) ease;
  min-width: 24px;
}

.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: var(--spacing-md) 0;
  margin: 0;
}

.faq-link-wrapper {
  text-align: center;
  margin-top: var(--spacing-2xl);
}

/* Blog Teaser Section */
.blog-teaser {
  background-color: var(--color-surface);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-2xl);
}

.blog-post-teaser {
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 4px 15px var(--color-shadow);
  display: flex;
  flex-direction: column;
}

.blog-post-teaser img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.blog-post-content {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-post-content h4 {
  flex-grow: 1;
}

/* Final CTA & Registration Form */
.final-cta {
  background-color: var(--color-primary);
  color: var(--color-surface);
  text-align: center;
}

.final-cta h2 {
  color: var(--color-surface);
}

.final-cta p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-2xl);
}

.registration-form-container {
  max-width: 600px;
  margin: 0 auto;
}

#quick-registration-form {
  display: flex;
  gap: var(--spacing-md);
}

.form-group {
  flex-grow: 1;
}

#quick-registration-form input {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
}

#quick-registration-form .cta-button {
  background-color: var(--color-accent);
  color: #000;
}

#quick-registration-form .cta-button:hover {
  background-color: var(--color-secondary);
  color: var(--color-surface);
}

#form-thank-you {
  background-color: var(--color-success);
  color: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
}

.form-terms {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

.form-terms a {
  color: var(--color-surface);
  text-decoration: underline;
}

/* Footer */
.main-footer {
  background-color: var(--color-surface);
  padding-top: var(--spacing-3xl);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-column h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
}

.footer-column p,
.footer-column address {
  color: var(--color-text-secondary);
  font-style: normal;
}

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

.footer-column ul li {
  padding: 0;
  margin-bottom: var(--spacing-sm);
}

.footer-column ul li::before {
  content: none;
}

.footer-column a {
  color: var(--color-text-secondary);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a svg {
  color: var(--color-text-secondary);
  transition: color var(--transition-speed) ease;
}

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

/* Animations on Scroll */
.fade-in-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

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

.cookie-banner p {
  margin: 0;
  margin-right: var(--spacing-lg);
}

.cookie-banner button {
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-primary);
  color: var(--color-surface);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  white-space: nowrap;
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

/* Media Queries for Responsiveness */

/* Large Desktops (2K) */
@media (min-width: 1920px) {
  :root {
    --font-size-base: 1.1rem;
    --container-width: 1400px;
  }
}

/* Tablets and small desktops */
@media (max-width: 1024px) {
  h1 {
    font-size: var(--font-size-3xl);
  }
  h2 {
    font-size: var(--font-size-2xl);
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .plan-card.popular {
    transform: scale(1);
  }

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

  .team-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }

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

  .audience-image {
    order: -1;
    margin-bottom: var(--spacing-xl);
  }

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

  #quick-registration-form {
    flex-direction: column;
  }
}

/* Mobile Devices */
@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  h1 {
    font-size: var(--font-size-2xl);
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero .subtitle {
    font-size: var(--font-size-base);
  }

  section {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
  }

  .main-nav {
    display: none; /* Hide for mobile menu implementation */
  }

  /* Mobile Menu Styles (to be toggled with JS) */
  .mobile-nav-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
  }

  .mobile-nav-toggle .icon-menu,
  .mobile-nav-toggle .icon-close {
    display: block;
  }

  .nav-open .mobile-nav-toggle .icon-menu {
    display: none;
  }
  .nav-open .mobile-nav-toggle .icon-close {
    display: block;
  }

  .main-nav.mobile-visible {
    display: flex;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--color-surface);
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .main-nav.mobile-visible ul {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-2xl);
  }

  .main-nav.mobile-visible a {
    font-size: var(--font-size-2xl);
  }

  .header-cta {
    display: none;
  }

  .tabs-navigation {
    flex-direction: column;
  }

  .tab-link {
    border-bottom: 1px solid var(--color-border);
  }

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

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

  .cookie-banner {
    flex-direction: column;
    text-align: center;
  }

  .cookie-banner p {
    margin: 0;
    margin-bottom: var(--spacing-md);
  }
}