:root {
      --emerald-deep: #022c22;
      --emerald-dark: #064e3b;
      --emerald-main: #047857;
      --emerald-soft: #ecfdf5;
      --mint: #dff7ea;
      --lime-accent: #d9eb70;
      --text-main: #111827;
      --text-muted: #5f6f67;
      --card-border: rgba(210, 232, 220, 0.9);
      --shadow-soft: 0 18px 55px rgba(15, 23, 42, 0.08);
      --shadow-premium: 0 28px 80px rgba(2, 44, 34, 0.22);
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: var(--text-main);
      background:
        radial-gradient(circle at 12% 8%, rgba(209, 250, 229, 0.7), transparent 28%),
        radial-gradient(circle at 90% 16%, rgba(204, 251, 241, 0.42), transparent 28%),
        linear-gradient(180deg, #f7fcf9 0%, #eef8f2 100%);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
      overflow-x: hidden;
    }

    h1,
    h2,
    h3 {
      letter-spacing: -0.04em;
    }

    ::selection {
      background: rgba(16, 185, 129, 0.22);
      color: #064e3b;
    }

    .hero-bg {
      background:
        radial-gradient(circle at 18% 22%, rgba(167, 243, 208, 0.2), transparent 28%),
        radial-gradient(circle at 78% 18%, rgba(45, 212, 191, 0.16), transparent 28%),
        radial-gradient(circle at 50% 100%, rgba(217, 235, 112, 0.13), transparent 36%),
        linear-gradient(135deg, #0f766e 0%, #047857 42%, #064e3b 76%, #022c22 100%);
      position: relative;
      overflow: hidden;
      isolation: isolate;
    }

    .hero-bg::before {
      content: "";
      position: absolute;
      inset: -1px;
      background:
        linear-gradient(120deg, rgba(255, 255, 255, 0.1), transparent 30%),
        radial-gradient(circle at 22% 35%, rgba(255, 255, 255, 0.08), transparent 18%);
      pointer-events: none;
      z-index: 0;
    }

    .hero-bg::after {
      content: "";
      position: absolute;
      left: -12%;
      right: -12%;
      bottom: -84px;
      height: 170px;
      background: #ffffff;
      border-radius: 50% 50% 0 0 / 100% 100% 0 0;
      z-index: 1;
      opacity: 0.98;
    }

    .dark-gradient {
      background:
        radial-gradient(circle at 18% 10%, rgba(16, 185, 129, 0.2), transparent 24%),
        radial-gradient(circle at 82% 18%, rgba(20, 184, 166, 0.14), transparent 26%),
        linear-gradient(135deg, #0f3f34 0%, #065f46 52%, #022c22 100%);
      position: relative;
      overflow: hidden;
      isolation: isolate;
    }

    .light-section {
      background:
        radial-gradient(circle at top, rgba(209, 250, 229, 0.5), transparent 34%),
        linear-gradient(180deg, #f9fcfa 0%, #f1f8f4 100%);
    }

    .mint-section {
      background:
        radial-gradient(circle at 15% 10%, rgba(187, 247, 208, 0.42), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(204, 251, 241, 0.36), transparent 28%),
        linear-gradient(180deg, #edf8f1 0%, #e7f5ed 100%);
    }

    .white-section {
      background:
        radial-gradient(circle at 50% 0%, rgba(236, 253, 245, 0.72), transparent 32%),
        #ffffff;
    }

    .texture-overlay {
      position: absolute;
      inset: 0;
      background:
        linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
      background-size: 44px 44px;
      opacity: 0.9;
      pointer-events: none;
      z-index: 0;
    }

    .section-lead {
      max-width: 38rem;
      margin-left: auto;
      margin-right: auto;
    }

    #nav {
      background: #ffffff;
      transition: all 0.3s ease;
    }

    nav {
      box-shadow: 0 8px 26px rgba(15, 23, 42, 0.055);
      border-bottom: 1px solid rgba(226, 232, 240, 0.95);
    }

    .navbar-menu a {
      position: relative;
      padding-bottom: 4px;
    }

    .navbar-menu a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 0;
      height: 2px;
      border-radius: 999px;
      background: linear-gradient(90deg, #047857, #0f766e);
      transition: width 0.25s ease;
    }

    .navbar-menu a:hover::after {
      width: 100%;
    }

    @keyframes qrGlow {
      0%, 100% {
        box-shadow:
          0 0 18px rgba(16, 185, 129, 0.48),
          0 0 38px rgba(45, 212, 191, 0.18),
          0 28px 70px rgba(2, 44, 34, 0.3);
      }

      50% {
        box-shadow:
          0 0 28px rgba(16, 185, 129, 0.68),
          0 0 58px rgba(45, 212, 191, 0.28),
          0 34px 86px rgba(2, 44, 34, 0.36);
      }
    }

    @keyframes float {
      0%, 100% {
        transform: translateY(0);
      }

      50% {
        transform: translateY(-10px);
      }
    }

    @keyframes float-slow {
      0%, 100% {
        transform: translateX(-50%) translateY(0);
      }

      50% {
        transform: translateX(-50%) translateY(-7px);
      }
    }

    @keyframes float-slow-desktop {
      0%, 100% {
        transform: translateY(0);
      }

      50% {
        transform: translateY(-7px);
      }
    }

    @keyframes float-reverse {
      0%, 100% {
        transform: translateY(0);
      }

      50% {
        transform: translateY(8px);
      }
    }

    @keyframes pulseRing {
      0% {
        transform: scale(0.95);
        opacity: 0.46;
      }

      70% {
        transform: scale(1.12);
        opacity: 0;
      }

      100% {
        transform: scale(1.12);
        opacity: 0;
      }
    }

    .qr-glow {
      animation: qrGlow 2.8s ease-in-out infinite;
      border: 10px solid rgba(255, 255, 255, 0.95);
      background: #ffffff;
    }

    .animate-float {
      animation: float 3s ease-in-out infinite;
    }

    .animate-float-slow {
      animation: float-slow 4s ease-in-out infinite;
    }

    .animate-float-reverse {
      animation: float-reverse 3.5s ease-in-out infinite;
    }

    .metric-tag {
      position: absolute;
      background: rgba(255, 255, 255, 0.94);
      color: #065f46;
      padding: 8px 13px;
      border-radius: 9999px;
      font-weight: 650;
      font-size: 0.88rem;
      box-shadow: 0 16px 42px rgba(2, 44, 34, 0.18);
      white-space: nowrap;
      z-index: 30;
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255, 255, 255, 0.82);
    }

    .carbon-tag {
      left: 50%;
    }

    @media (min-width: 768px) {
      .carbon-tag {
        left: 25%;
        animation-name: float-slow-desktop;
      }
    }

    .metric-tag i {
      filter: drop-shadow(0 2px 4px rgba(5, 150, 105, 0.2));
    }

    .hero-subline {
      display: block;
      width: 8.5rem;
      height: 4px;
      border-radius: 9999px;
      background: linear-gradient(90deg, #c8d948, #d9eb70, #f1ff9c, #c8d948);
      margin: 0 auto;
      box-shadow: 0 0 22px rgba(217, 235, 112, 0.5);
    }

    .glass-card {
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 253, 250, 0.9) 100%);
      border: 1px solid var(--card-border);
      border-radius: 1.55rem;
      box-shadow: var(--shadow-soft);
      backdrop-filter: blur(16px);
      transition:
        transform 0.28s ease,
        box-shadow 0.28s ease,
        border-color 0.28s ease,
        background 0.28s ease;
      position: relative;
      overflow: hidden;
    }

    .glass-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 20% 0%, rgba(16, 185, 129, 0.07), transparent 32%),
        linear-gradient(135deg, rgba(255, 255, 255, 0.72), transparent 42%);
      opacity: 0;
      transition: opacity 0.28s ease;
      pointer-events: none;
    }

    .glass-card:hover {
      transform: translateY(-7px);
      box-shadow: 0 24px 64px rgba(15, 23, 42, 0.12);
      border-color: rgba(16, 185, 129, 0.25);
    }

    .glass-card:hover::before {
      opacity: 1;
    }

    .soft-card {
      background:
        radial-gradient(circle at 50% 0%, rgba(236, 253, 245, 0.92), transparent 45%),
        linear-gradient(180deg, #ffffff 0%, #f7fcf9 100%);
      border: 1px solid #dceee5;
      border-radius: 1.55rem;
      box-shadow: 0 14px 38px rgba(15, 23, 42, 0.055);
      transition:
        transform 0.28s ease,
        box-shadow 0.28s ease,
        border-color 0.28s ease;
      position: relative;
      overflow: hidden;
    }

    .soft-card::after {
      content: "";
      position: absolute;
      inset: auto 18px 0 18px;
      height: 3px;
      border-radius: 999px 999px 0 0;
      background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.45), transparent);
      opacity: 0;
      transition: opacity 0.28s ease;
    }

    .soft-card:hover {
      transform: translateY(-7px);
      box-shadow: 0 24px 62px rgba(15, 23, 42, 0.1);
      border-color: rgba(16, 185, 129, 0.24);
    }

    .soft-card:hover::after {
      opacity: 1;
    }

    .dark-card {
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.105) 0%, rgba(255, 255, 255, 0.055) 100%);
      border: 1px solid rgba(255, 255, 255, 0.13);
      border-radius: 1.55rem;
      box-shadow: 0 14px 36px rgba(2, 44, 34, 0.2);
      backdrop-filter: blur(12px);
      transition:
        transform 0.28s ease,
        box-shadow 0.28s ease,
        border-color 0.28s ease,
        background 0.28s ease;
      position: relative;
      overflow: hidden;
    }

    .dark-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at top, rgba(187, 247, 208, 0.12), transparent 45%);
      opacity: 0;
      transition: opacity 0.28s ease;
    }

    .dark-card:hover {
      transform: translateY(-7px);
      box-shadow: 0 26px 66px rgba(2, 44, 34, 0.34);
      border-color: rgba(255, 255, 255, 0.24);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.07) 100%);
    }

    .dark-card:hover::before {
      opacity: 1;
    }

    .icon-wrap {
      width: 3.9rem;
      height: 3.9rem;
      margin: 0 auto 1.05rem;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 1.15rem;
      background:
        radial-gradient(circle at 30% 25%, #ffffff 0%, transparent 34%),
        linear-gradient(180deg, #ecfdf5 0%, #dff7ea 100%);
      color: #047857;
      box-shadow:
        inset 0 0 0 1px rgba(16, 185, 129, 0.1),
        0 12px 28px rgba(5, 150, 105, 0.12);
      position: relative;
      z-index: 1;
    }

    .icon-wrap-dark {
      width: 3.9rem;
      height: 3.9rem;
      margin: 0 auto 1.05rem;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 1.15rem;
      background:
        radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.22), transparent 35%),
        rgba(255, 255, 255, 0.12);
      color: #bbf7d0;
      box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.1),
        0 12px 30px rgba(2, 44, 34, 0.2);
      position: relative;
      z-index: 1;
    }

    .demo-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.86rem 1.35rem;
      border-radius: 9999px;
      font-weight: 650;
      font-size: 0.94rem;
      color: #ffffff;
      background:
        linear-gradient(135deg, #10b981 0%, #059669 44%, #047857 100%);
      box-shadow: 0 14px 28px rgba(5, 150, 105, 0.2);
      transition:
        transform 0.25s ease,
        box-shadow 0.25s ease,
        opacity 0.25s ease;
      position: relative;
      z-index: 1;
      overflow: hidden;
    }

    .demo-btn::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.22), transparent);
      transform: translateX(-120%);
      transition: transform 0.55s ease;
    }

    .demo-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(5, 150, 105, 0.28);
    }

    .demo-btn:hover::before {
      transform: translateX(120%);
    }

    .main-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 9999px;
      font-weight: 650;
      transition: all 0.28s ease;
      box-shadow: 0 16px 34px rgba(5, 150, 105, 0.2);
    }

    .main-btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 22px 44px rgba(5, 150, 105, 0.28);
    }

    .contact-email-card {
      background: rgba(255, 255, 255, 0.92);
      border: 1px solid rgba(187, 247, 208, 0.8);
      box-shadow: 0 14px 34px rgba(15, 23, 42, 0.06);
      backdrop-filter: blur(12px);
    }

    .navbar-toggle .bar {
      transition: all 0.3s ease;
    }

    .navbar-toggle.active .bar:nth-child(1) {
      transform: rotate(45deg) translate(6px, 6px);
    }

    .navbar-toggle.active .bar:nth-child(2) {
      opacity: 0;
    }

    .navbar-toggle.active .bar:nth-child(3) {
      transform: rotate(-45deg) translate(6px, -6px);
    }

    .hero-visual-shell {
      position: relative;
    }

    .hero-visual-shell::before {
      content: "";
      position: absolute;
      inset: 10% 9%;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.07);
      filter: blur(2px);
      animation: pulseRing 3s ease-out infinite;
      z-index: 0;
    }

    .hero-visual-shell::after {
      content: "";
      position: absolute;
      inset: 18%;
      border-radius: 999px;
      background: radial-gradient(circle, rgba(217, 235, 112, 0.17), transparent 66%);
      z-index: 0;
    }

    footer {
      position: relative;
      overflow: hidden;
    }

    footer::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 20% 0%, rgba(16, 185, 129, 0.14), transparent 30%),
        radial-gradient(circle at 80% 10%, rgba(20, 184, 166, 0.1), transparent 28%);
      pointer-events: none;
    }

    footer > div {
      position: relative;
      z-index: 1;
    }

    @media (min-width: 768px) {
      .hero-subline {
        margin: 0;
      }
    }

    @media (max-width: 767px) {
      .hero-subline {
        margin: 0 auto;
      }

      .hero-bg::after {
        bottom: -112px;
        height: 150px;
      }
    }

    @media (min-width: 640px) {
      .hero-subline {
        width: 10rem;
      }
    }

    @media (min-width: 768px) {
      .hero-subline {
        width: 11rem;
      }
    }

    @media (max-width: 640px) {
      .metric-tag {
        font-size: 0.72rem;
        padding: 5px 8px;
      }

      .qr-glow {
        border-width: 7px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0s !important;
      }
    }