/* style.css */

: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: "Merriweather", serif;

  /* Light Theme Colors */
  --color-background: #f8f9fa;
  --color-surface: #ffffff;
  --color-primary: #005f73;
  --color-primary-dark: #004c5c;
  --color-secondary: #0a9396;
  --color-accent: #94d2bd;
  --color-text-primary: #212529;
  --color-text-secondary: #495057;
  --color-text-muted: #6c757d;
  --color-border: #dee2e6;
  --color-success: #2a9d8f;
  --color-error: #e63946;
  --color-white: #ffffff;
  --color-black: #000000;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* 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: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem; /* 36px */
  --font-size-5xl: 3rem; /* 48px */

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Other */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --transition-fast: 0.2s ease-in-out;
  --transition-medium: 0.3s ease-in-out;
  --container-width: 1140px;
  --container-padding: 1.5rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #121212;
    --color-surface: #1e1e1e;
    --color-primary: #94d2bd;
    --color-primary-dark: #ee9b00;
    --color-secondary: #0a9396;
    --color-accent: #005f73;
    --color-text-primary: #e0e0e0;
    --color-text-secondary: #adb5bd;
    --color-text-muted: #6c757d;
    --color-border: #343a40;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3),
      0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3),
      0 4px 6px -2px rgba(0, 0, 0, 0.2);
  }
}

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

html {
  scroll-behavior: smooth;
  font-size: 100%;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-secondary);
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

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

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
}

h4 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
}

p {
  margin-bottom: var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

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

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

ul,
ol {
  padding-left: var(--space-5);
  margin-bottom: var(--space-4);
}

li {
  margin-bottom: var(--space-2);
}

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

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

/* Buttons */
.button {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--border-radius-md);
  text-align: center;
  cursor: pointer;
  transition: background-color var(--transition-medium),
    color var(--transition-medium), transform var(--transition-fast),
    box-shadow var(--transition-medium);
  border: 2px solid transparent;
  text-decoration: none;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

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

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

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

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

.button.tertiary-button {
  background-color: transparent;
  color: var(--color-secondary);
  padding-left: 0;
  padding-right: 0;
  border: none;
  box-shadow: none;
}
.button.tertiary-button:hover {
  transform: none;
  box-shadow: none;
  text-decoration: underline;
}

.button.large-button {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

/* Header */
.site-header {
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
  padding: var(--space-4) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

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

.logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
}

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

.nav-links {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: var(--space-8);
}

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

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

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

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

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

.mobile-menu-toggle svg {
  width: 28px;
  height: 28px;
  color: var(--color-text-primary);
}

/* Hero Section */
.hero-section {
  background-color: var(--color-background);
  padding-top: var(--space-20);
  padding-bottom: var(--space-24);
  text-align: center;
}

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

.hero-content h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-6);
}

.hero-content .subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Features Overview Section */
.features-overview {
  background-color: var(--color-surface);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.feature-card {
  background-color: var(--color-background);
  padding: var(--space-8);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: transform var(--transition-medium),
    box-shadow var(--transition-medium);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  margin-bottom: var(--space-6);
}

.feature-icon svg {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  margin: 0 auto;
}

.feature-card h3 {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-xl);
}

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

.steps-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  position: relative;
}

.steps-container::before {
  content: "";
  position: absolute;
  top: var(--space-8);
  bottom: var(--space-8);
  left: 24px;
  width: 2px;
  background-color: var(--color-border);
  transform: translateX(-50%);
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-6);
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  z-index: 1;
  border: 4px solid var(--color-background);
}

.step-content h3 {
  margin-top: 0;
  margin-bottom: var(--space-2);
}

/* Courses Section */
.courses-section {
  background-color: var(--color-surface);
}

.tabs-container {
  width: 100%;
}

.tabs-nav {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-12);
}

.tab-link {
  padding: var(--space-3) var(--space-6);
  border: none;
  background-color: transparent;
  cursor: pointer;
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  transition: color var(--transition-medium);
}

.tab-link::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-medium);
}

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

.tab-link.active::after {
  transform: scaleX(1);
}

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

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

.course-list {
  display: grid;
  gap: var(--space-12);
}

.course-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  background-color: var(--color-background);
  padding: var(--space-8);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.course-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--border-radius-md);
}

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

.course-details li {
  padding-left: var(--space-6);
  position: relative;
}

.course-details li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--color-success);
}

/* For whom section */
.for-whom-section {
  background-color: var(--color-background);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.audience-card {
  padding: var(--space-8);
  background-color: var(--color-surface);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--color-accent);
}

/* Testimonials Section */
.testimonials-section {
  background-color: var(--color-surface);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

.testimonial-card {
  background-color: var(--color-background);
  padding: var(--space-8);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  position: relative;
}

.testimonial-card::before {
  content: "“";
  font-family: var(--font-secondary);
  font-size: 6rem;
  color: var(--color-accent);
  position: absolute;
  top: var(--space-2);
  left: var(--space-6);
  opacity: 0.2;
  line-height: 1;
}

.testimonial-card p {
  font-style: italic;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-6);
}

.testimonial-card footer {
  text-align: right;
}

.testimonial-card cite {
  font-weight: 700;
  display: block;
  font-style: normal;
}

.testimonial-card span {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

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

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.team-member-card {
  padding: var(--space-6);
  background-color: var(--color-surface);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
}

.member-role {
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.member-bio {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.team-cta {
  text-align: center;
  margin-top: var(--space-12);
}

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

.accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

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

.accordion-header {
  width: 100%;
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-background);
  border: none;
  text-align: left;
  font-size: var(--font-size-lg);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text-primary);
}

.accordion-header svg {
  transition: transform var(--transition-medium);
  flex-shrink: 0;
}

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

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium),
    padding var(--transition-medium);
}

.accordion-content p {
  padding: 0 var(--space-6) var(--space-6) var(--space-6);
  margin: 0;
}

.faq-more {
  text-align: center;
  margin-top: var(--space-12);
}

/* CTA Section */
.cta-section {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.cta-section h2,
.cta-section p {
  color: var(--color-white);
}

.registration-form {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

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

.registration-form input {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--font-size-base);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-accent);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
}

.registration-form input:focus {
  outline: none;
  border-color: var(--color-white);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.5);
}

.registration-form .button {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-white);
}

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

.form-terms {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
}

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

.form-thank-you {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  padding: var(--space-8);
  border-radius: var(--border-radius-md);
}

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

/* Footer */
.site-footer {
  background-color: var(--color-surface);
  padding-top: var(--space-16);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
}

.footer-column h4 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
}

.footer-column p {
  font-size: var(--font-size-sm);
}

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

.footer-links li {
  margin-bottom: var(--space-3);
}

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

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

.footer-column address {
  font-style: normal;
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  text-align: center;
}

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

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

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

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

/* Responsive Styles */
@media (min-width: 768px) {
  .course-card {
    grid-template-columns: 300px 1fr;
  }
}

@media (min-width: 1024px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonial-card:nth-child(2) {
    transform: translateY(var(--space-6));
  }
}

@media (max-width: 1023px) {
  .team-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 991px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-surface);
    flex-direction: column;
    padding: var(--space-24) var(--space-8) 0;
    gap: var(--space-6);
    box-shadow: var(--shadow-lg);
    transition: right 0.4s ease-in-out;
  }

  .nav-links.active {
    right: 0;
  }

  .site-header .button.primary-button {
    display: none;
  }

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

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

  .about-column {
    grid-column: 1 / 3;
  }
}

@media (max-width: 767px) {
  h1 {
    font-size: var(--font-size-3xl);
  }
  h2 {
    font-size: var(--font-size-2xl);
  }
  .hero-content h1 {
    font-size: var(--font-size-4xl);
  }

  section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }

  .hero-section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-16);
  }

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

  .registration-form {
    flex-direction: column;
  }

  .steps-container::before {
    left: 24px;
    transform: none;
  }

  .step {
    align-items: flex-start;
  }

  .step-number {
    width: 48px;
    height: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .about-column {
    grid-column: auto;
  }
}

/* Cookie Banner */
.cookie-consent-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  padding: var(--space-6);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 2000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
  transform: translateY(100%);
  animation: slideUp 0.5s ease-out forwards;
}

.cookie-consent-banner p {
  margin: 0;
  font-size: var(--font-size-sm);
}

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

#cookie-consent-accept {
  flex-shrink: 0;
  padding: var(--space-2) var(--space-4);
}

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

@media (max-width: 767px) {
  .cookie-consent-banner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }
}