/* style.css */

/* ------------------- */
/* ROOT & THEME VARIABLES */
/* ------------------- */

:root {
  /* Light Theme */
  --bg-primary: #ffffff;
  --bg-secondary: #f4f6f8;
  --bg-tertiary: #e9edf0;
  --bg-accent: #0a2540;
  --text-primary: #1a1a1a;
  --text-secondary: #5a6470;
  --text-on-accent: #ffffff;
  --accent-primary: #0070f3;
  --accent-secondary: #0a2540;
  --border-color: #dde3e9;
  --shadow-color: rgba(10, 37, 64, 0.1);
  --shadow-color-light: rgba(10, 37, 64, 0.05);

  /* Typography */
  --font-primary: "system-ui", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  --font-secondary: "Georgia", "Times New Roman", serif;
  --font-size-base: 16px;
  --line-height-base: 1.7;

  /* Spacing */
  --space-xs: 0.25rem; /* 4px */
  --space-s: 0.5rem; /* 8px */
  --space-m: 1rem; /* 16px */
  --space-l: 1.5rem; /* 24px */
  --space-xl: 2.5rem; /* 40px */
  --space-xxl: 4rem; /* 64px */
  --space-xxxl: 6rem; /* 96px */

  /* Borders & Radius */
  --border-radius-s: 4px;
  --border-radius-m: 8px;
  --border-radius-l: 16px;

  /* Transitions */
  --transition-fast: all 0.2s ease-in-out;
  --transition-medium: all 0.3s ease-in-out;
  --transition-slow: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0a192f;
    --bg-secondary: #112240;
    --bg-tertiary: #1f3a5f;
    --bg-accent: #90a4d4;
    --text-primary: #ccd6f6;
    --text-secondary: #8892b0;
    --text-on-accent: #0a192f;
    --accent-primary: #64ffda;
    --accent-secondary: #ccd6f6;
    --border-color: #2d4871;
    --shadow-color: rgba(2, 12, 27, 0.7);
    --shadow-color-light: rgba(2, 12, 27, 0.5);
  }
}

/* ------------------- */
/* GLOBAL & BASE STYLES */
/* ------------------- */

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: var(--line-height-base);
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-l);
  padding-right: var(--space-l);
}

@media (max-width: 768px) {
  .container {
    padding-left: var(--space-m);
    padding-right: var(--space-m);
  }
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--accent-secondary);
  margin-bottom: var(--space-m);
}

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

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

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

h4 {
  font-size: clamp(1.1rem, 2.5vw, 1.25rem);
}

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

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

a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

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

ul,
ol {
  padding-left: var(--space-l);
  color: var(--text-secondary);
}

ul li,
ol li {
  margin-bottom: var(--space-s);
}

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

@media (max-width: 768px) {
  section {
    padding-top: var(--space-xxl);
    padding-bottom: var(--space-xxl);
  }
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xxl);
}

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

.section-header p {
  margin-left: auto;
  margin-right: auto;
  font-size: 1.125rem;
}

/* ------------------- */
/* 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.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ------------------- */
/* HEADER & NAVIGATION */
/* ------------------- */

.main-header {
  padding: var(--space-l) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-medium);
}

@media (prefers-color-scheme: dark) {
  .main-header {
    background-color: rgba(10, 25, 47, 0.8);
  }
}

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

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent-secondary);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  opacity: 1;
}

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

.nav-links a {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 1rem;
  padding: var(--space-s) 0;
  position: relative;
  text-decoration: none;
}

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

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

.cta-button {
  background-color: var(--accent-primary);
  color: var(--text-on-accent);
  padding: var(--space-s) var(--space-l);
  border-radius: var(--border-radius-m);
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  border: 2px solid transparent;
  transition: var(--transition-medium);
}

.cta-button:hover {
  background-color: transparent;
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  text-decoration: none;
}

@media (prefers-color-scheme: light) {
  .cta-button {
    color: var(--bg-primary);
  }
  .cta-button:hover {
    color: var(--accent-primary);
  }
}

/* Mobile navigation styles would go here if a hamburger menu was in the HTML */

/* ------------------- */
/* HERO SECTION */
/* ------------------- */

.hero-section {
  background-color: var(--bg-secondary);
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xxl);
}

.hero-section .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-xxl);
}

.hero-content {
  animation: fadeInUp 0.8s ease-out forwards;
}

.hero-content h1 {
  margin-bottom: var(--space-l);
}

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

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 1s 0.4s ease-out forwards;
  opacity: 0;
}

.hero-image img {
  border-radius: var(--border-radius-l);
  box-shadow: 0 20px 40px var(--shadow-color);
}

@media (max-width: 992px) {
  .hero-section .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content .subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-image {
    order: -1;
    margin-bottom: var(--space-xl);
  }
}

/* ------------------- */
/* VALUES SECTION */
/* ------------------- */

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.value-card {
  background-color: var(--bg-secondary);
  padding: var(--space-xl);
  border-radius: var(--border-radius-l);
  border: 1px solid var(--border-color);
  transition: var(--transition-medium);
  transform: translateY(0);
}

.value-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px var(--shadow-color);
  border-color: var(--accent-primary);
}

.value-icon {
  margin-bottom: var(--space-m);
}

.value-icon svg {
  width: 40px;
  height: 40px;
  color: var(--accent-primary);
}

.value-card h3 {
  margin-bottom: var(--space-s);
}

.value-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ------------------- */
/* VIDEO GUIDE SECTION */
/* ------------------- */

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

.video-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--border-radius-l);
  overflow: hidden;
  box-shadow: 0 20px 40px var(--shadow-color);
  cursor: pointer;
}

.video-thumbnail {
  width: 100%;
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(5px);
  transition: var(--transition-medium);
}

.play-button svg {
  width: 50px;
  height: 50px;
  color: var(--bg-primary);
  transition: var(--transition-medium);
}

.video-container:hover .play-button {
  transform: translate(-50%, -50%) scale(1.1);
  background-color: rgba(255, 255, 255, 0.3);
}

.video-description {
  margin-top: var(--space-xxl);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.video-description h3 {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  text-align: left;
}

.feature-item h4 {
  color: var(--accent-secondary);
  margin-bottom: var(--space-s);
}

.feature-item p {
  font-size: 0.95rem;
}

/* ------------------- */
/* WORKBOOK SECTION (ACCORDION) */
/* ------------------- */

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

.accordion {
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-m);
  overflow: hidden;
}

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

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  background-color: var(--bg-secondary);
  border: none;
  padding: var(--space-l);
  text-align: left;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent-secondary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-medium);
}

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

.accordion-icon {
  transition: var(--transition-medium);
  flex-shrink: 0;
  margin-left: var(--space-m);
}

.accordion-icon svg {
  width: 24px;
  height: 24px;
  color: var(--text-secondary);
}

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

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.25, 0.8, 0.25, 1),
    padding 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  background-color: var(--bg-primary);
}

.accordion-content p,
.accordion-content ul {
  padding: var(--space-l);
  padding-top: 0;
  font-size: 1rem;
  line-height: 1.8;
}
.accordion-content p:first-child,
.accordion-content ul:first-child {
  padding-top: var(--space-l);
}

.accordion-content.active {
  max-height: 1500px; /* Adjust as needed */
}

.accordion-content ul {
  list-style-type: "✓ ";
  padding-left: var(--space-l);
}

.accordion-content ul li {
  padding-left: var(--space-s);
}

/* ------------------- */
/* TESTIMONIALS SECTION */
/* ------------------- */

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

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

.testimonial-card {
  background-color: var(--bg-primary);
  padding: var(--space-xl);
  border-radius: var(--border-radius-m);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.testimonial-card .quote {
  flex-grow: 1;
  font-family: var(--font-secondary);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: var(--space-l);
  position: relative;
  padding-left: var(--space-xl);
}

.testimonial-card .quote::before {
  content: "“";
  position: absolute;
  left: 0;
  top: -10px;
  font-size: 4rem;
  color: var(--accent-primary);
  opacity: 0.3;
  font-family: var(--font-secondary);
}

.author {
  margin-top: auto;
  padding-top: var(--space-m);
  border-top: 1px solid var(--border-color);
}

.author-name {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0;
}

.author-title {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

@media (max-width: 992px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

/* ------------------- */
/* CTA SECTION */
/* ------------------- */

.cta-section {
  background-color: var(--bg-accent);
  color: var(--text-on-accent);
}

.cta-section .container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  align-items: center;
  gap: var(--space-xxl);
}

.cta-content h2,
.cta-content p {
  color: var(--text-on-accent);
}

.cta-content h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
}

.cta-content p {
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

.cta-content .cta-button {
  background-color: var(--bg-primary);
  color: var(--accent-secondary);
  font-size: 1.1rem;
  padding: var(--space-m) var(--space-xl);
}

.cta-content .cta-button:hover {
  background-color: var(--accent-primary);
  color: var(--bg-primary);
  border-color: var(--bg-primary);
}

@media (prefers-color-scheme: dark) {
  .cta-section {
    background-color: var(--bg-tertiary);
  }
  .cta-section .cta-content h2,
  .cta-section .cta-content p {
    color: var(--text-primary);
  }
  .cta-content .cta-button {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
  }
  .cta-content .cta-button:hover {
    background-color: transparent;
    color: var(--accent-primary);
    border-color: var(--accent-primary);
  }
}

.cta-image img {
  border-radius: var(--border-radius-m);
}

@media (max-width: 992px) {
  .cta-section .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .cta-image {
    display: none;
  }
}

/* ------------------- */
/* REGISTRATION FORM */
/* ------------------- */

.registration-form-section {
  background-color: var(--bg-secondary);
}

#registration-form-container {
  max-width: 550px;
  margin: 0 auto;
  background-color: var(--bg-primary);
  padding: var(--space-xxl);
  border-radius: var(--border-radius-l);
  box-shadow: 0 10px 30px var(--shadow-color-light);
}

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

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-s);
  color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
  width: 100%;
  padding: var(--space-m);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-m);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 112, 243, 0.2);
}

@media (prefers-color-scheme: dark) {
  .form-group input[type="text"]:focus,
  .form-group input[type="email"]:focus,
  .form-group input[type="password"]:focus {
    box-shadow: 0 0 0 3px rgba(100, 255, 218, 0.2);
  }
}

.terms-agreement {
  display: flex;
  align-items: flex-start;
  gap: var(--space-s);
}

.terms-agreement input[type="checkbox"] {
  margin-top: 5px;
  width: 16px;
  height: 16px;
  accent-color: var(--accent-primary);
}

.terms-agreement label {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.registration-form .cta-button {
  width: 100%;
  padding: var(--space-m);
  font-size: 1.1rem;
}

#thank-you-message {
  max-width: 550px;
  margin: 0 auto;
  background-color: var(--bg-primary);
  padding: var(--space-xxl);
  border-radius: var(--border-radius-l);
  box-shadow: 0 10px 30px var(--shadow-color-light);
  text-align: center;
}

#thank-you-message h3 {
  color: var(--accent-secondary);
}

/* ------------------- */
/* FOOTER */
/* ------------------- */

.main-footer {
  background-color: var(--bg-accent);
  color: var(--text-on-accent);
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xl);
  font-size: 0.9rem;
}

@media (prefers-color-scheme: dark) {
  .main-footer {
    background-color: #051224;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-xxl);
}

.footer-column h4 {
  margin-bottom: var(--space-m);
  color: var(--bg-primary);
  font-size: 1.1rem;
}

.footer-column p,
.footer-column li {
  color: var(--text-secondary);
  opacity: 0.8;
}

@media (prefers-color-scheme: dark) {
  .footer-column h4 {
    color: var(--accent-primary);
  }
  .footer-column p,
  .footer-column li {
    color: var(--text-secondary);
  }
}

.footer-column.about p {
  line-height: 1.6;
}

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

.footer-column ul li {
  margin-bottom: var(--space-s);
}

.footer-column a {
  color: var(--text-secondary);
  text-decoration: none;
  opacity: 0.8;
  transition: var(--transition-fast);
}

.footer-column a:hover {
  color: var(--bg-primary);
  opacity: 1;
}

@media (prefers-color-scheme: dark) {
  .footer-column a:hover {
    color: var(--accent-primary);
  }
}

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

.footer-bottom {
  border-top: 1px solid rgba(221, 227, 233, 0.2);
  padding-top: var(--space-xl);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  opacity: 0.7;
}

@media (prefers-color-scheme: dark) {
  .footer-bottom {
    border-top-color: var(--border-color);
  }
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xxl);
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* ------------------- */
/* COOKIE BANNER */
/* ------------------- */

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  padding: var(--space-l);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-l);
  box-shadow: 0 -5px 20px var(--shadow-color);
  z-index: 2000;
  transform: translateY(100%);
  transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

.cookie-banner p {
  margin: 0;
  font-size: 0.9rem;
  text-align: center;
}

#accept-cookies {
  background-color: var(--accent-primary);
  color: var(--text-on-accent);
  border: none;
  padding: var(--space-s) var(--space-l);
  border-radius: var(--border-radius-m);
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition-fast);
}

#accept-cookies:hover {
  opacity: 0.9;
}

@media (prefers-color-scheme: light) {
  #accept-cookies {
    color: var(--bg-primary);
  }
}

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