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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  overflow-x: clip;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Prevent scrolling when mobile drawer is open */
body.mobile-menu-open {
  overflow: hidden !important;
  touch-action: none;
}

    /* Top Navigation Bar */
    .header {
      width: 100%;
      background-color: var(--bg-header);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--header-border);
      position: sticky;
      top: 0;
      z-index: 100;
      transition: background-color 0.25s ease, border-color 0.25s ease;
    }

    .nav-container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 14px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-left {
      display: flex;
      align-items: center;
    }

    .logo-link {
      display: inline-flex;
      align-items: center;
      text-decoration: none;
      line-height: 1;
    }

    .logo-img {
      height: 42px;
      width: auto;
      display: block;
      object-fit: contain;
      margin-left: -10px;
      transition: opacity 0.2s ease;
    }

    .logo-img:hover {
      opacity: 0.85;
    }

    .logo-img.logo-dark,
    .logo-picture.logo-dark {
      display: none;
    }

    [data-theme="dark"] .logo-img.logo-light,
    [data-theme="dark"] .logo-picture.logo-light {
      display: none;
    }

    [data-theme="dark"] .logo-img.logo-dark,
    [data-theme="dark"] .logo-picture.logo-dark {
      display: inline-flex;
    }

    .nav-center {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-link {
      font-size: 14px;
      font-weight: 400;
      color: var(--text-primary);
      text-decoration: none;
      transition: opacity 0.15s ease;
    }

    .nav-link:hover {
      opacity: 0.7;
    }

    .nav-right {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn-secondary {
      border: 1px solid var(--btn-secondary-border);
      background: transparent;
      color: var(--btn-secondary-text);
      padding: 7px 16px;
      font-size: 14px;
      font-weight: 450;
      border-radius: 9999px;
      text-decoration: none;
      transition: all 0.18s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      white-space: nowrap;
    }

    .btn-secondary:hover {
      background-color: var(--btn-secondary-hover-bg);
      border-color: var(--btn-secondary-hover-border);
    }

    .btn-download-nav {
      background-color: var(--btn-primary-bg);
      color: var(--btn-primary-text);
      padding: 7px 18px;
      font-size: 14px;
      font-weight: 500;
      border-radius: 9999px;
      text-decoration: none;
      transition: background-color 0.18s ease;
      display: inline-block;
      white-space: nowrap;
    }

    .btn-download-nav:hover {
      background-color: var(--btn-primary-hover);
    }

    .theme-toggle-btn {
      background: transparent;
      border: 1px solid var(--btn-secondary-border);
      color: var(--text-primary);
      width: 36px;
      height: 36px;
      border-radius: 50%;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: all 0.18s ease;
      margin-left: 2px;
      padding: 0;
    }

    .theme-toggle-btn:hover {
      background-color: var(--btn-secondary-hover-bg);
      border-color: var(--btn-secondary-hover-border);
    }

    .theme-toggle-btn svg {
      width: 17px;
      height: 17px;
      fill: none;
      stroke: currentColor;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .icon-sun { display: none; }
    .icon-moon { display: block; }
    [data-theme="dark"] .icon-sun { display: block; }
    [data-theme="dark"] .icon-moon { display: none; }

    /* Mobile Menu Hamburger Button */
    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: 1px solid var(--btn-secondary-border);
      color: var(--text-primary);
      width: 38px;
      height: 38px;
      border-radius: 50%;
      cursor: pointer;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 4px;
      padding: 0;
      transition: all 0.2s ease;
      margin-left: 2px;
      z-index: 102;
    }

    .mobile-menu-btn:hover {
      background-color: var(--btn-secondary-hover-bg);
      border-color: var(--btn-secondary-hover-border);
    }

    .hamburger-line {
      width: 16px;
      height: 1.5px;
      background-color: var(--text-primary);
      border-radius: 2px;
      transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
      transform-origin: center;
    }

    /* Morphing Hamburger into X */
    .mobile-menu-btn.is-active .hamburger-line:nth-child(1) {
      transform: translateY(5.5px) rotate(45deg);
    }
    .mobile-menu-btn.is-active .hamburger-line:nth-child(2) {
      opacity: 0;
      transform: scaleX(0);
    }
    .mobile-menu-btn.is-active .hamburger-line:nth-child(3) {
      transform: translateY(-5.5px) rotate(-45deg);
    }

    /* Mobile Navigation Drawer Overlay */
    .mobile-nav-drawer {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      height: 100dvh;
      z-index: 99;
      pointer-events: none;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.25s ease, visibility 0.25s ease;
    }

    .mobile-nav-drawer.is-open {
      pointer-events: auto;
      opacity: 1;
      visibility: visible;
    }

    .mobile-nav-backdrop {
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, 0.45);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      opacity: 0;
      transition: opacity 0.25s ease;
    }

    .mobile-nav-drawer.is-open .mobile-nav-backdrop {
      opacity: 1;
    }

    .mobile-nav-panel {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      padding-top: calc(70px + env(safe-area-inset-top, 0px));
      padding-left: 24px;
      padding-right: 24px;
      padding-bottom: max(32px, env(safe-area-inset-bottom, 24px));
      background: var(--bg-header);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border-bottom: 1px solid var(--header-border);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
      transform: translateY(-20px);
      transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
      max-height: 100vh;
      max-height: 100dvh;
      overflow-y: auto;
    }

    [data-theme="dark"] .mobile-nav-panel {
      box-shadow: 0 20px 48px rgba(0, 0, 0, 0.6);
    }

    .mobile-nav-drawer.is-open .mobile-nav-panel {
      transform: translateY(0);
    }

    .mobile-nav-links {
      display: flex;
      flex-direction: column;
      gap: 2px;
      margin-bottom: 24px;
    }

    .mobile-nav-link {
      font-size: 18px;
      font-weight: 500;
      color: var(--text-primary);
      text-decoration: none;
      padding: 14px 4px;
      border-bottom: 1px solid var(--card-border);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: color 0.18s ease, opacity 0.18s ease;
    }

    .mobile-nav-link:hover,
    .mobile-nav-link:active {
      color: var(--accent-orange);
    }

    .mobile-nav-actions {
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding-top: 8px;
    }

    .mobile-btn-login,
    .mobile-btn-join {
      width: 100%;
      height: 46px;
      font-size: 15px;
      font-weight: 500;
      border-radius: 9999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    /* ==========================================================================
       Hero Section
       ========================================================================== */
    .hero-section {
      width: 100%;
      padding-top: 64px;
      padding-bottom: 72px;
    }

    .container {
      max-width: 1240px;
      width: 100%;
      margin: 0 auto;
      padding: 0 32px;
    }

    .hero-text-block {
      max-width: 780px;
      text-align: left;
    }

    .hero-tag {
      font-size: 14px;
      font-weight: 450;
      color: var(--text-tag);
      margin-bottom: 12px;
      display: block;
      letter-spacing: -0.01em;
      transition: color 0.25s ease;
    }

    .hero-title {
      font-size: 46px;
      line-height: 1.15;
      font-weight: 600;
      color: var(--text-primary);
      letter-spacing: -0.03em;
      margin: 0 0 14px 0;
      text-wrap: balance;
      transition: color 0.25s ease;
    }

    .hero-subtitle {
      font-size: 19px;
      line-height: 1.55;
      font-weight: 400;
      color: var(--text-secondary);
      letter-spacing: -0.01em;
      margin-top: 0;
      margin-bottom: 34px;
      max-width: 660px;
      transition: color 0.25s ease;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 56px;
      flex-wrap: wrap;
    }

    .hero-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: var(--btn-primary-bg);
      color: var(--btn-primary-text);
      padding: 12px 22px;
      font-size: 14.5px;
      font-weight: 500;
      border-radius: 9999px;
      text-decoration: none;
      border: 1px solid transparent;
      cursor: pointer;
      transition: background-color 0.18s ease, transform 0.1s ease;
    }

    .hero-cta-btn:hover {
      background-color: var(--btn-primary-hover);
    }

    .hero-secondary-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: transparent;
      color: var(--btn-secondary-text);
      border: 1px solid var(--btn-secondary-border);
      padding: 12px 22px;
      font-size: 14.5px;
      font-weight: 450;
      border-radius: 9999px;
      text-decoration: none;
      cursor: pointer;
      transition: all 0.18s ease;
    }

    .hero-secondary-btn:hover {
      background-color: var(--btn-secondary-hover-bg);
      border-color: var(--btn-secondary-hover-border);
    }

    .hero-media-container {
      width: 100%;
      max-width: 1179px;
      aspect-ratio: 16 / 9;
      max-height: 720px;
      min-height: 200px;
      border-radius: 12px;
      overflow: hidden;
      background-color: var(--media-container-bg);
      box-shadow: var(--media-container-shadow);
      border: 1px solid var(--media-container-border);
      position: relative;
      transition: all 0.25s ease;
    }

    .hero-media-container picture,
    .hero-media-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center;
      display: block;
    }


/* ==========================================================================
   Closing CTA Section (Conversion Banner)
   ========================================================================== */
.final-cta-section {
  padding: 80px 0 100px;
  background-color: var(--bg-body);
  position: relative;
}

.final-cta-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 64px 40px;
  text-align: center;
  max-width: 960px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.cta-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tag);
  margin-bottom: 14px;
}

.cta-title {
  font-size: 38px;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.cta-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 32px;
  line-height: 1.55;
}

.cta-btn-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.cta-btn-main {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 9999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.cta-btn-main:hover {
  background-color: var(--btn-primary-hover);
  transform: translateY(-1px);
}

.cta-btn-sub {
  border: 1px solid var(--btn-secondary-border);
  background: transparent;
  color: var(--btn-secondary-text);
  padding: 12px 26px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 9999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: all 0.2s ease;
}

.cta-btn-sub:hover {
  background-color: var(--btn-secondary-hover-bg);
  border-color: var(--btn-secondary-hover-border);
}

.cta-guarantees {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-guarantee-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.cta-guarantee-item svg {
  color: #10b981;
}

/* ==========================================================================
   Global Footer
   ========================================================================== */
.footer {
  width: 100%;
  background-color: var(--bg-body);
  border-top: 1px solid var(--header-border);
  padding: 72px 0 40px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.footer-container {
  max-width: 1240px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 64px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--header-border);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  margin-bottom: 16px;
  text-decoration: none;
}

.footer-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.footer-tagline {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 0;
  max-width: 280px;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.footer-links-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.nav-badge-pill {
  font-size: 10px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 9999px;
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  line-height: 1.4;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  margin: 0;
}

.footer-copy a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
}

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

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
  :root {
    --header-height: 64px;
  }
  .nav-center {
    display: none;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .container {
    padding: 0 28px;
  }
  .hero-section {
    padding-top: 52px;
    padding-bottom: 60px;
  }
  .hero-title {
    font-size: clamp(34px, 4.5vw, 40px);
  }
  .hero-subtitle {
    font-size: 17.5px;
    line-height: 1.5;
    margin-bottom: 28px;
  }
  .hero-cta-group {
    margin-bottom: 44px;
  }
  .final-cta-section {
    padding: 64px 0 80px;
  }
  .final-cta-card {
    padding: 48px 28px;
  }
  .cta-title {
    font-size: 32px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .footer-links-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  .hero-section {
    padding-top: 44px;
    padding-bottom: 52px;
  }
  .hero-title {
    font-size: clamp(30px, 5.5vw, 36px);
  }
  .hero-subtitle {
    font-size: 16.5px;
    line-height: 1.5;
  }
  .final-cta-card {
    padding: 40px 22px;
    border-radius: 18px;
  }
  .cta-title {
    font-size: 28px;
  }
  .cta-subtitle {
    font-size: 15.5px;
    margin-bottom: 26px;
  }
  .footer-links-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 60px;
  }
  .nav-container {
    padding: 12px 18px;
  }
  .logo-img {
    height: 35px;
    margin-left: -6px;
  }
  /* In mobile view, move login and join actions into drawer to keep header clean */
  .nav-right .btn-secondary,
  .nav-right .btn-download-nav {
    display: none;
  }
  .nav-right {
    gap: 8px;
  }
  .container {
    padding: 0 18px;
  }
  .hero-section {
    padding-top: 28px;
    padding-bottom: 32px;
  }
  .hero-tag {
    font-size: 13px;
    margin-bottom: 10px;
  }
  .hero-title {
    font-size: clamp(26px, 7.5vw, 32px);
    line-height: 1.2;
    margin-bottom: 12px;
  }
  .hero-subtitle {
    font-size: 15.5px;
    line-height: 1.5;
    margin-bottom: 24px;
  }
  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 32px;
  }
  .hero-cta-btn,
  .hero-secondary-btn {
    width: 100%;
    justify-content: center;
    padding: 13px 20px;
    font-size: 14.5px;
  }
  .hero-media-container {
    border-radius: 10px;
  }
  .final-cta-section {
    padding: 44px 0 52px;
  }
  .final-cta-card {
    padding: 32px 18px;
    border-radius: 16px;
  }
  .cta-tag {
    font-size: 11px;
    margin-bottom: 10px;
  }
  .cta-title {
    font-size: clamp(28px, 7.5vw, 32px);
    line-height: 1.25;
    margin-bottom: 12px;
  }
  .cta-subtitle {
    font-size: 14.5px;
    line-height: 1.5;
    margin-bottom: 22px;
  }
  .cta-btn-group {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 24px;
  }
  .cta-btn-main,
  .cta-btn-sub {
    width: 100%;
    justify-content: center;
    padding: 13px 20px;
    font-size: 14.5px;
  }
  .cta-guarantees {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .cta-guarantee-item {
    font-size: 12.5px;
  }
  .footer {
    padding: 44px 0 32px;
  }
  .footer-top {
    gap: 36px;
    padding-bottom: 40px;
  }
  .footer-brand-col {
    align-items: flex-start;
  }
  .footer-logo-img {
    height: 34px;
  }
  .footer-tagline {
    font-size: 13.5px;
    max-width: 100%;
  }
  .footer-links-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
  .footer-col-title {
    font-size: 12px;
    margin-bottom: 14px;
  }
  .footer-link {
    font-size: 13.5px;
    padding: 4px 0;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-top: 24px;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 10px 14px;
  }
  .container {
    padding: 0 14px;
  }
  .footer-links-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-brand-col {
    align-items: center;
    text-align: center;
  }
  .footer-link-col {
    text-align: center;
  }
  .footer-links-list {
    align-items: center;
  }
  .footer {
    padding-bottom: max(32px, env(safe-area-inset-bottom, 24px));
  }
}