/* css/main.css */

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

:root {
  --primary-bg: #1e2a38;
  --secondary-bg: #18222e;
  --card-bg: #2c3e50;
  --accent-blue: #3498db;
  --text-primary: #ecf0f1;
  --text-secondary: #bdc3c7;
  --text-muted: #7f8c8d;
  --border-color: #111820;
  --success: #27ae60;
  --danger: #e74c3c;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  background: var(--primary-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(24, 34, 46, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  padding: 1rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--accent-blue);
}

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

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.mobile-menu-btn span {
  width: 100%;
  height: 3px;
  background: var(--text-primary);
  border-radius: 3px;
  transition: all 0.3s ease;
}

.mobile-menu-btn.active span:first-child {
  transform: translateY(9px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:last-child {
  transform: translateY(-9px) rotate(-45deg);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #1e2a38 0%, #18222e 50%, #2c3e50 100%);
  opacity: 0.8;
}

.hero-background::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(52, 152, 219, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(52, 152, 219, 0.08) 0%,
      transparent 50%
    );
}

.hero-container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  opacity: 0;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.title-line {
  display: block;
  overflow: hidden;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-slogan {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--danger);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-features {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.feature-icon {
  font-size: 1.5rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: var(--accent-blue);
  color: white;
  box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn-primary:hover {
  background: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.btn-secondary {
  background: var(--card-bg);
  color: var(--text-primary);
  border: 1px solid var(--accent-blue);
}

.btn-secondary:hover {
  background: var(--accent-blue);
  transform: translateY(-2px);
}

.btn-icon {
  font-size: 1.25rem;
  display: flex;
  align-items: center;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  height: 600px;
  opacity: 0;
}

.pdf-cards {
  position: relative;
  width: 100%;
  height: 100%;
}

.pdf-card {
  position: absolute;
  width: 380px;
  height: 480px;
  background: linear-gradient(135deg, var(--card-bg) 0%, #34495e 100%);
  border-radius: 15px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(52, 152, 219, 0.3);
  overflow: hidden;
}

.pdf-card::before {
  content: "📄";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 5rem;
  opacity: 0.3;
  z-index: -1;
  pointer-events: none;
}

.pdf-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: relative;
  z-index: 1;
}
.card-1 {
  top: 0;
  left: 0;
  z-index: 3;
}

.card-2 {
  top: 50px;
  left: 50px;
  z-index: 2;
  opacity: 0.8;
}

.card-3 {
  top: 100px;
  left: 100px;
  z-index: 1;
  opacity: 0.6;
}

/* Sections */
section {
  padding: 100px 0;
  position: relative;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 4rem;
}

/* Features Grid */
.features {
  background: var(--secondary-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
  box-shadow: 0 10px 30px rgba(52, 152, 219, 0.2);
}

.feature-icon-wrapper {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Why Choose Section */
.why-choose {
  background: var(--primary-bg);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.why-card {
  background: var(--card-bg);
  padding: 2.5rem;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  opacity: 0;
  transform: scale(0.9);
}

.why-card:hover {
  transform: scale(1.05);
  border-color: var(--accent-blue);
  box-shadow: 0 15px 40px rgba(52, 152, 219, 0.2);
}

.why-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
}

.why-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.why-card p {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Tech Stack */
.tech-stack {
  background: var(--secondary-bg);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.tech-item {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  opacity: 0;
}

.tech-item:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
}

.tech-icon-wrapper {
  margin-bottom: 1rem;
}

.tech-emoji {
  font-size: 3rem;
}

.tech-item h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.tech-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Download Section */
.download-section {
  background: var(--primary-bg);
}

.download-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.download-card {
  background: var(--card-bg);
  padding: 3rem 2rem;
  border-radius: 15px;
  text-align: center;
  border: 2px solid var(--border-color);
  transition: all 0.3s ease;
  opacity: 0;
  transform: scale(0.95);
}

.download-card.recommended {
  border-color: var(--accent-blue);
  box-shadow: 0 0 30px rgba(52, 152, 219, 0.3);
}

.download-card:hover {
  transform: scale(1.05);
  border-color: var(--accent-blue);
  box-shadow: 0 15px 40px rgba(52, 152, 219, 0.3);
}

.platform-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
}

.download-card h3 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.download-card p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.btn-download {
  width: 100%;
  justify-content: center;
  background: var(--accent-blue);
  color: white;
}

.btn-download:hover {
  background: #2980b9;
}

.download-note {
  text-align: center;
  color: var(--text-secondary);
}

.download-note p {
  margin: 0.5rem 0;
}

/* Support Section */
.support-section {
  background: linear-gradient(
    135deg,
    var(--card-bg) 0%,
    var(--primary-bg) 100%
  );
  text-align: center;
}

.support-actions {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.btn-support {
  background: var(--success);
  color: white;
  font-size: 1.1rem;
  padding: 1.25rem 2.5rem;
}

.btn-support:hover {
  background: #229954;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(39, 174, 96, 0.3);
}

.btn-star {
  background: var(--card-bg);
  color: var(--text-primary);
  border: 2px solid var(--accent-blue);
  font-size: 1.1rem;
  padding: 1.25rem 2.5rem;
}

.btn-star:hover {
  background: var(--accent-blue);
  transform: translateY(-3px);
}

/* Footer */
.footer {
  background: var(--secondary-bg);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  text-align: center;
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

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

.footer-license {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent-blue);
}

/* Responsive Design */
@media (max-width: 968px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-visual {
    height: 400px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 100px 0 60px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-features {
    flex-direction: column;
    gap: 1rem;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 100%;
    max-width: 300px;
    background: var(--secondary-bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    transition: right 0.3s ease;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
    z-index: 1000;
  }

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

  section {
    padding: 60px 0;
  }

  .features-grid,
  .why-grid,
  .tech-grid,
  .download-cards {
    grid-template-columns: 1fr;
  }

  .pdf-card {
    width: 280px;
    height: 380px;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Smooth Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-blue);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: #2980b9;
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 2rem;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transform: translateY(-20px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  border: 1px solid var(--border-color);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
  opacity: 1;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 1.5rem;
  color: var(--text-primary);
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.3s ease;
}

.modal-close-btn:hover {
  color: var(--accent-blue);
}

.modal-body p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-list {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.modal-list li {
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.modal-body code {
  background: var(--secondary-bg);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: "Fira Code", "Cascadia Code", monospace;
  color: var(--accent-blue);
}

.command-box {
  display: flex;
  align-items: center;
  background: var(--secondary-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin-bottom: 1.5rem;
  justify-content: space-between;
  flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.command-box code {
  flex-grow: 1;
  background: transparent;
  padding: 0;
  margin-right: 1rem;
  word-break: break-all; /* Ensure long commands wrap */
}

.copy-btn {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.3s ease, transform 0.3s ease;
  flex-shrink: 0; /* Prevent button from shrinking */
}

.copy-btn:hover {
  background: #2980b9;
  transform: translateY(-1px);
}

.modal-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: -0.5rem;
  margin-bottom: 1.5rem;
}

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

.modal-footer .btn-primary {
  padding: 0.8rem 1.8rem;
}

/* Responsive adjustments for modal */
@media (max-width: 600px) {
  .modal-content {
    padding: 1.5rem;
  }

  .modal-header h2 {
    font-size: 1.2rem;
  }

  .modal-close-btn {
    font-size: 1.5rem;
  }

  .command-box {
    flex-direction: column;
    align-items: stretch;
    gap: 0.8rem;
  }

  .command-box code {
    margin-right: 0;
    text-align: center;
  }

  .copy-btn {
    width: 100%;
  }
}
/* -------------------------------
   Video Showcase Section
--------------------------------- */
.video-showcase {
  padding: 30px 0;
  background: linear-gradient(
    135deg,
    var(--card-bg) 0%,
    var(--primary-bg) 100%
  );
  text-align: center;
  color: var(--text-color, #fff);
}

.video-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 20px;
}

.video-wrapper {
  position: relative;
  margin-top: 40px;
  border-radius: 16px;
  overflow: hidden;
}

.demo-video {
  width: 100%;
  height: auto;
  border-radius: 16px;
  outline: none;
}

/* Play overlay styling */
.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 0.4s ease;
}

.play-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.play-button {
  font-size: 4rem;
  color: #fff;
  transition: transform 0.3s ease;
}

.play-overlay:hover .play-button {
  transform: scale(1.1);
}