:root {
      --accent-green: #10e396;
      --accent-dark-green: #00b686;
      --primary-gradient: linear-gradient(135deg, #10e396 0%, #00b686 100%);
      --bg-body: #060b09;
      --bg-surface: #0e1814;
      --bg-card: #15221e;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --text-main: #e6f4ef;
      --text-muted: #79988e;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: 'Poppins', sans-serif;
      -webkit-tap-highlight-color: transparent;
    }

    body {
      background-color: var(--bg-body);
      color: var(--text-main);
      overflow-x: hidden;
      min-height: 100vh;
      min-height: 100dvh;
      display: flex;
      flex-direction: column;
    }

    /* ---------------- HEADER / NAVBAR ---------------- */
    .nav {
      max-width: 1200px;
      width: 100%;
      margin: 0 auto;
      padding: 16px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      z-index: 10;
    }

    .logo-badge {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: var(--text-main);
    }

    .logo-badge img {
      width: 38px;
      height: 38px;
      filter: drop-shadow(0 4px 10px rgba(16, 227, 150, 0.35));
    }

    .logo-badge span {
      font-weight: 800;
      font-size: 20px;
      letter-spacing: -0.5px;
    }

    .nav-actions {
      display: flex;
      gap: 10px;
    }

    .btn {
      padding: 9px 18px;
      border-radius: 12px;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      border: none;
      transition: transform 0.15s ease, opacity 0.15s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
    }

    .btn-login {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-main);
      border: 1px solid var(--border-subtle);
    }

    .btn-login:hover {
      border-color: var(--accent-green);
      color: var(--accent-green);
    }

    .btn-signup {
      background: var(--primary-gradient);
      color: #042118;
      box-shadow: 0 4px 14px rgba(16, 227, 150, 0.25);
    }

    .btn-signup:hover {
      transform: scale(1.02);
    }

    .btn-signup:active {
      transform: scale(0.97);
    }

    /* ---------------- HERO SECTION ---------------- */
    .hero {
      max-width: 900px;
      width: 100%;
      margin: 30px auto 16px auto;
      text-align: center;
      padding: 0 20px;
      flex-shrink: 0;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      background: rgba(16, 227, 150, 0.12);
      border: 1px solid rgba(16, 227, 150, 0.25);
      border-radius: 20px;
      font-size: 11.5px;
      font-weight: 700;
      color: var(--accent-green);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }

    .hero h1 {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.22;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .hero h1 span {
      color: var(--accent-green);
    }

    .hero p {
      color: var(--text-muted);
      font-size: 14.5px;
      line-height: 1.6;
      max-width: 650px;
      margin: 0 auto 24px auto;
    }

    .hero-cta {
      display: flex;
      justify-content: center;
      gap: 12px;
    }

    /* ---------------- SECTION HEADER ---------------- */
    .section-header {
      text-align: center;
      max-width: 700px;
      margin: 30px auto 14px auto;
      padding: 0 20px;
    }

    .section-header h2 {
      font-size: 24px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 8px;
    }

    .section-header p {
      font-size: 13.5px;
      color: var(--text-muted);
    }

    /* ---------------- SHOWCASE GRID ---------------- */
    .showcase-grid {
      max-width: 1180px;
      width: 100%;
      margin: 16px auto 50px auto;
      padding: 0 20px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 26px;
      align-items: stretch;
    }

    .showcase-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: 24px;
      padding: 22px;
      box-shadow: 0 16px 40px rgba(0,0,0,0.5);
      display: flex;
      flex-direction: column;
      text-align: left;
      transition: transform 0.2s ease, border-color 0.2s ease;
    }

    .showcase-card:hover {
      border-color: rgba(16, 227, 150, 0.3);
      transform: translateY(-3px);
    }

    .card-tag {
      display: inline-block;
      align-self: flex-start;
      font-size: 10.5px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent-green);
      background: rgba(16, 227, 150, 0.1);
      padding: 3px 10px;
      border-radius: 8px;
      margin-bottom: 12px;
    }

    /* Uniform Image Frame Container */
    .image-frame {
      width: 100%;
      height: 360px;
      background: #09120e;
      border-radius: 16px;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      border: 1px solid rgba(255, 255, 255, 0.04);
    }

    .image-frame img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center top;
      display: block;
    }

    .showcase-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-top: 18px;
      margin-bottom: 8px;
      color: #fff;
    }

    .showcase-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ---------------- PC FOOTER (HIDDEN ON MOBILE) ---------------- */
    .pc-footer {
      background: #09120e;
      border-top: 1px solid var(--border-subtle);
      margin-top: auto;
      padding: 44px 20px 24px 20px;
      display: block;
    }

    .footer-container {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: 0.3px;
    }

    .footer-col p {
      color: var(--text-muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 13px;
      transition: color 0.15s;
    }

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

    .footer-bottom {
      max-width: 1200px;
      margin: 32px auto 0 auto;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
    }

    /* ---------------- MOBILE APP BOTTOM BAR (HIDDEN ON PC) ---------------- */
    .mobile-app-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(14, 24, 20, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-top: 1px solid var(--border-subtle);
      padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px)) 16px;
      z-index: 999;
      gap: 12px;
      box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.5);
    }

    .mobile-app-bar .btn {
      flex: 1;
      padding: 12px 14px;
      font-size: 13.5px;
      font-weight: 700;
      border-radius: 14px;
    }

    /* ---------------- AUTH MODAL ---------------- */
    .modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.78);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      z-index: 99999;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 16px;
    }

    .modal-overlay.active {
      display: flex;
    }

    .auth-card {
      background: #0e1814;
      border: 1px solid rgba(16, 227, 150, 0.25);
      border-radius: 28px;
      width: 100%;
      max-width: 400px;
      padding: 30px 24px 26px 24px;
      position: relative;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
      animation: modalPop 0.2s ease-out;
    }

    @keyframes modalPop {
      from { opacity: 0; transform: scale(0.95) translateY(10px); }
      to { opacity: 1; transform: scale(1) translateY(0); }
    }

    .close-x {
      position: absolute;
      top: 18px;
      right: 18px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      color: #fff;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      line-height: 1;
      cursor: pointer;
      transition: 0.15s;
    }

    .close-x:hover {
      background: rgba(255, 82, 82, 0.15);
      color: #ff6e6e;
      border-color: #ff6e6e;
    }

    .auth-tabs {
      display: flex;
      background: #060c09;
      border: 1px solid var(--border-subtle);
      border-radius: 14px;
      padding: 4px;
      margin-bottom: 20px;
    }

    .auth-tab {
      flex: 1;
      padding: 9px 0;
      background: transparent;
      border: none;
      color: var(--text-muted);
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      border-radius: 10px;
      transition: all 0.15s ease;
    }

    .auth-tab.active {
      background: var(--bg-card);
      color: var(--accent-green);
    }

    .auth-form {
      display: flex;
      flex-direction: column;
      gap: 13px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 5px;
      text-align: left;
    }

    .form-group label {
      font-size: 11.5px;
      color: var(--text-muted);
      font-weight: 600;
      margin-left: 2px;
    }

    .form-group input {
      background: #14221d;
      border: 1px solid var(--border-subtle);
      color: #fff;
      padding: 12px 16px;
      border-radius: 14px;
      font-size: 13.5px;
      outline: none;
      transition: border-color 0.2s ease;
    }

    .form-group input:focus {
      border-color: var(--accent-green);
    }

    .forgot-password-wrap {
      display: flex;
      justify-content: flex-end;
      margin-top: -4px;
      margin-bottom: 2px;
    }

    .forgot-password-link {
      color: var(--accent-green);
      font-size: 12px;
      font-weight: 600;
      text-decoration: none;
      transition: opacity 0.15s ease;
    }

    .forgot-password-link:hover {
      text-decoration: underline;
    }

    /* ---------------- MOBILE RESPONSIVE ---------------- */
    @media (max-width: 768px) {
      .nav-actions {
        display: none;
      }
      .pc-footer {
        display: none !important;
      }

      .mobile-app-bar {
        display: flex;
      }

      body {
        padding-bottom: 84px;
      }

      .nav {
        padding: 14px 16px;
      }

      .logo-badge span {
        font-size: 18px;
      }

      .hero {
        margin: 20px auto 14px auto;
        padding: 0 16px;
      }

      .hero h1 {
        font-size: 27px;
        line-height: 1.25;
      }

      .hero p {
        font-size: 13px;
        margin-bottom: 14px;
      }

      .hero-cta {
        display: none;
      }

      .section-header h2 {
        font-size: 20px;
      }

      .showcase-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 14px;
        margin: 10px auto 30px auto;
      }

      .image-frame {
        height: auto;
      }

      .image-frame img {
        height: auto;
        object-fit: contain;
      }

      .showcase-card {
        padding: 16px;
        border-radius: 20px;
      }

      .modal-overlay {
        align-items: flex-end;
        padding: 0;
      }

      .auth-card {
        max-width: 100%;
        border-radius: 26px 26px 0 0;
        border-bottom: none;
        border-left: none;
        border-right: none;
        padding: 24px 20px calc(24px + env(safe-area-inset-bottom, 0px)) 20px;
        animation: sheetUp 0.25s cubic-bezier(0.2, 0.9, 0.3, 1);
      }

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