:root {
      --bg: #050816;
      --bg-alt: #0b1020;
      --card: #111827;
      --accent: #22c55e;
      --accent-soft: rgba(34, 197, 94, 0.08);
      --text: #f9fafb;
      --muted: #9ca3af;
      --border: #1f2937;
      --danger: #f97373;
      --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
      --radius-lg: 18px;
      --radius-xl: 28px;
    }

    * {
      box-sizing: border-box;
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
        sans-serif;
      background: radial-gradient(circle at top, #1f2937 0, #020617 45%, #020617 100%);
      color: var(--text);
      line-height: 1.6;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    /* Layout */

    .page {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    .container {
      width: 100%;
      max-width: 1120px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* Top nav */

    header {
      position: sticky;
      top: 0;
      z-index: 40;
      backdrop-filter: blur(18px);
      background: linear-gradient(
        to bottom,
        rgba(2, 6, 23, 0.88),
        rgba(2, 6, 23, 0.6),
        transparent
      );
      border-bottom: 1px solid rgba(15, 23, 42, 0.9);
    }

    .nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.9rem 0;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }

    .logo-mark {
      width: 32px;
      height: 32px;
      border-radius: 10px;
      /*background: radial-gradient(circle at 20% 0%, #22c55e, #14532d 55%, #020617 100%);*/
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ecfdf3;
      font-size: 0.9rem;
      font-weight: 700;
      /*box-shadow: 0 10px 25px rgba(34, 197, 94, 0.6);*/
    }

    .logo-text-main {
      font-weight: 650;
      letter-spacing: 0.04em;
      font-size: 1.02rem;
    }

    .logo-sub {
      font-size: 0.7rem;
      color: var(--muted);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.4rem;
      font-size: 0.9rem;
    }

    .nav-links a {
      padding: 0.2rem 0.6rem;
      color: #e5e7eb;
      position: relative;
    }

    .nav-links a:not(.nav-cta)::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(to right, #22c55e, #4ade80);
    transition: width 0.16s ease-out;
    }

    .nav-links a:not(.nav-cta):hover::after {
    width: 100%;
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      /*padding: 0.5rem 1.6rem;*/
      border-radius: 999px;
      font-size: 1.1rem;
      background: radial-gradient(circle at top left, #22c55e, #16a34a 45%, #166534);
      color: #ecfdf3;
      box-shadow: 0 13px 30px rgba(34, 197, 94, 0.65);
      border: 1px solid rgba(34, 197, 94, 0.85);
      text-shadow: 0 0 8px rgba(22, 163, 74, 0.7);
    }

    /* Mobile nav */

    .nav-toggle {
      display: none;
      border: none;
      background: none;
      color: var(--text);
      font-size: 1.4rem;
      cursor: pointer;
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        right: 1.25rem;
        top: 3.1rem;
        flex-direction: column;
        padding: 0.75rem 0.9rem;
        gap: 0.4rem;
        background: rgba(15, 23, 42, 0.98);
        border-radius: 0.9rem;
        border: 1px solid rgba(31, 41, 55, 1);
        box-shadow: 0 16px 40px rgba(15, 23, 42, 0.95);
      }
      .nav-toggle {
        display: block;
      }

      header.nav-open .nav-links {
        display: flex;
      }
    }

    /* Hero */

    .hero {
      padding: 3.5rem 0 3rem;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 3fr) minmax(0, 2.7fr);
      gap: 2.4rem;
      align-items: center;
    }

    @media (max-width: 900px) {
      .hero-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.2rem 0.6rem;
      border-radius: 999px;
      font-size: 0.75rem;
      background: rgba(15, 23, 42, 0.9);
      border: 1px solid rgba(55, 65, 81, 0.8);
      color: var(--muted);
      margin-bottom: 0.55rem;
    }

    .hero-kicker-dot {
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: radial-gradient(circle at 30% 0, #22c55e, #16a34a);
      box-shadow: 0 0 15px rgba(34, 197, 94, 0.8);
    }

    .hero-title {
      font-size: clamp(2.2rem, 4vw, 3rem);
      line-height: 1.1;
      letter-spacing: -0.04em;
      margin: 0 0 0.75rem;
    }

    .hero-title span {
      background: linear-gradient(to right, #22c55e, #a3e635);
      -webkit-background-clip: text;
      color: transparent;
    }

    .hero-text {
      color: var(--muted);
      max-width: 32rem;
      font-size: 0.98rem;
      margin-bottom: 1.5rem;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 0.9rem;
      margin-bottom: 1.4rem;
    }

    .btn-primary {
      padding: 0.7rem 1.3rem;
      border-radius: 999px;
      border: 1px solid rgba(34, 197, 94, 0.9);
      background: radial-gradient(circle at top left, #22c55e 0, #16a34a 40%, #15803d 100%);
      color: #ecfdf3;
      font-size: 0.9rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      box-shadow: 0 18px 40px rgba(22, 163, 74, 0.75);
      cursor: pointer;
    }

    .btn-secondary {
      padding: 0.7rem 1.2rem;
      border-radius: 999px;
      border: 1px solid rgba(55, 65, 81, 0.9);
      background: rgba(15, 23, 42, 0.96);
      color: #e5e7eb;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      cursor: pointer;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 0.9rem;
      font-size: 0.8rem;
      color: var(--muted);
    }

    .hero-meta-item {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      padding: 0.3rem 0.65rem;
      border-radius: 999px;
      background: rgba(15, 23, 42, 0.9);
      border: 1px solid rgba(31, 41, 55, 0.9);
    }

    .hero-meta-dot {
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: #22c55e;
    }

    /* Hero code card */

    .code-card {
      border-radius: var(--radius-xl);
      background: radial-gradient(circle at top, #0b1120, #020617 55%, #020617);
      border: 1px solid rgba(30, 64, 175, 0.6);
      box-shadow: var(--shadow-soft);
      padding: 1.1rem 1.1rem 1.2rem;
      position: relative;
      overflow: hidden;
    }

    .code-glow {
      position: absolute;
      inset: -40%;
      background:
        radial-gradient(circle at 0 0, rgba(34, 197, 94, 0.25), transparent 55%),
        radial-gradient(circle at 100% 0, rgba(59, 130, 246, 0.22), transparent 60%);
      mix-blend-mode: screen;
      opacity: 0.9;
      pointer-events: none;
    }

    .code-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 0.8rem;
      position: relative;
      z-index: 1;
    }

    .code-dots {
      display: flex;
      gap: 0.3rem;
    }

    .code-dot {
      width: 9px;
      height: 9px;
      border-radius: 999px;
      background: #1f2937;
      border: 1px solid #111827;
    }

    .code-dot:nth-child(1) {
      background: #ef4444;
    }

    .code-dot:nth-child(2) {
      background: #f59e0b;
    }

    .code-dot:nth-child(3) {
      background: #22c55e;
    }

    .code-title {
      font-size: 0.75rem;
      color: var(--muted);
    }

    .code-body {
      position: relative;
      z-index: 1;
    }

    pre {
      margin: 0;
      padding: 0.6rem 0.7rem;
      border-radius: 1rem;
      background: rgba(15, 23, 42, 0.9);
      border: 1px solid rgba(30, 64, 175, 0.65);
      font-family: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular,
        Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      font-size: 0.78rem;
      color: #e5e7eb;
      overflow-x: auto;
    }

    code {
      white-space: pre;
    }

    .code-kw {
      color: #22c55e;
    }

    .code-fn {
      color: #38bdf8;
    }

    .code-num {
      color: #fbbf24;
    }

    .code-str {
      color: #fb7185;
    }

    .code-comment {
      color: #6b7280;
    }

    .code-footer {
      margin-top: 0.7rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 0.6rem;
      font-size: 0.7rem;
      color: var(--muted);
    }

    .lang-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
      padding: 0.25rem 0.6rem;
      border-radius: 999px;
      border: 1px solid rgba(55, 65, 81, 0.9);
      background: rgba(15, 23, 42, 0.9);
    }

    /* Sections */

    section {
      padding: 2.8rem 0 0;
    }

    .section-header {
      margin-bottom: 1.5rem;
    }

    .eyebrow {
      font-size: 0.75rem;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 0.3rem;
    }

    .section-title {
      font-size: 1.4rem;
      letter-spacing: -0.03em;
      margin: 0 0 0.45rem;
    }

    .section-text {
      color: var(--muted);
      font-size: 0.9rem;
      max-width: 40rem;
      margin: 0;
    }

    /* About */

    .about-grid {
      display: grid;
      grid-template-columns: minmax(0, 2.4fr) minmax(0, 2.1fr);
      gap: 1.9rem;
      align-items: flex-start;
    }

    @media (max-width: 900px) {
      .about-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    .about-card {
      border-radius: var(--radius-lg);
      background: var(--bg-alt);
      border: 1px solid var(--border);
      padding: 1.1rem 1.2rem;
    }

    .about-list {
      list-style: none;
      padding: 0;
      margin: 0.6rem 0 0;
      display: grid;
      gap: 0.7rem;
      font-size: 0.9rem;
      color: var(--muted);
    }

    .about-list li {
      display: flex;
      align-items: flex-start;
      gap: 0.4rem;
    }

    .bullet {
      margin-top: 0.3rem;
      width: 6px;
      height: 6px;
      border-radius: 999px;
      background: #4ade80;
      box-shadow: 0 0 10px rgba(74, 222, 128, 0.8);
      flex-shrink: 0;
    }

    /* Features */

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1.1rem;
    }

    @media (max-width: 900px) {
      .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 640px) {
      .feature-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    .feature-card {
      border-radius: var(--radius-lg);
      background: rgba(15, 23, 42, 0.98);
      border: 1px solid rgba(31, 41, 55, 1);
      padding: 0.9rem 0.9rem 1rem;
      font-size: 0.88rem;
      color: var(--muted);
    }

    .feature-icon {
      width: 28px;
      height: 28px;
      border-radius: 999px;
      background: var(--accent-soft);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #4ade80;
      font-size: 0.9rem;
      margin-bottom: 0.5rem;
    }

    .feature-title {
      font-size: 0.92rem;
      font-weight: 600;
      margin-bottom: 0.25rem;
      color: #e5e7eb;
    }

    /* Why use */

    .why-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.8fr) minmax(0, 2.2fr);
      gap: 1.8rem;
    }

    @media (max-width: 900px) {
      .why-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    .reason-card {
      border-radius: var(--radius-lg);
      background: rgba(15, 23, 42, 0.98);
      border: 1px solid rgba(31, 41, 55, 1);
      padding: 0.9rem 1rem;
      font-size: 0.88rem;
      color: var(--muted);
      display: flex;
      gap: 0.6rem;
    }

    .reason-tag {
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: #a5b4fc;
      margin-bottom: 0.25rem;
    }

    /* How to use */

    .steps {
      display: grid;
      gap: 0.8rem;
      margin-top: 0.6rem;
    }

    .step {
      display: flex;
      gap: 0.7rem;
      font-size: 0.88rem;
      color: var(--muted);
      align-items: flex-start;
    }

    .step-index {
      width: 22px;
      height: 22px;
      border-radius: 999px;
      border: 1px solid rgba(75, 85, 99, 1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.78rem;
      color: #d1d5db;
      flex-shrink: 0;
      background: rgba(15, 23, 42, 0.96);
    }

    .inline-code {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
        "Liberation Mono", "Courier New", monospace;
      background: rgba(15, 23, 42, 0.95);
      border-radius: 999px;
      padding: 0.1rem 0.45rem;
      font-size: 0.78rem;
      border: 1px solid rgba(31, 41, 55, 0.9);
      color: #e5e7eb;
    }

    /* Contact */

    .contact-grid {
      display: grid;
      grid-template-columns: minmax(0, 2fr) minmax(0, 2.2fr);
      gap: 1.6rem;
      align-items: flex-start;
    }

    @media (max-width: 900px) {
      .contact-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    .contact-card {
      border-radius: var(--radius-lg);
      background: rgba(15, 23, 42, 0.98);
      border: 1px solid rgba(31, 41, 55, 1);
      padding: 1.1rem 1.1rem 1.25rem;
      box-shadow: 0 14px 40px rgba(15, 23, 42, 0.85);
    }

    .contact-form {
      display: grid;
      gap: 0.8rem;
      font-size: 0.88rem;
    }

    label {
      display: block;
      margin-bottom: 0.25rem;
      color: #e5e7eb;
      font-size: 0.8rem;
    }

    input,
    textarea {
      width: 100%;
      padding: 0.55rem 0.6rem;
      border-radius: 0.6rem;
      border: 1px solid rgba(55, 65, 81, 1);
      background: rgba(15, 23, 42, 0.98);
      color: #e5e7eb;
      font-size: 0.85rem;
      resize: vertical;
    }

    input:focus,
    textarea:focus {
      outline: none;
      border-color: #22c55e;
      box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.5);
    }

    .contact-hint {
      font-size: 0.78rem;
      color: var(--muted);
      margin-top: 0.15rem;
    }

    .contact-meta {
      font-size: 0.86rem;
      color: var(--muted);
    }

    .contact-meta a {
      color: #a5b4fc;
    }

    /* Footer */

    footer {
      padding: 2.1rem 0 2.3rem;
      margin-top: 2.4rem;
      border-top: 1px solid rgba(15, 23, 42, 0.96);
      font-size: 0.78rem;
      color: var(--muted);
    }

    .footer-inner {
      display: flex;
      flex-wrap: wrap;
      gap: 0.8rem;
      justify-content: space-between;
      align-items: center;
    }

    .interactive-bg-layer {
        position: fixed;
        inset: -20%;
        pointer-events: none;
        z-index: -1;
        background:
            radial-gradient(circle at calc(50% + var(--bg-offset-x, 0px))
                                calc(20% + var(--bg-offset-y, 0px)),
            rgba(34, 197, 94, 0.18),
            transparent 55%)
            ,
            radial-gradient(circle at 0% 100%, rgba(59, 130, 246, 0.15), transparent 60%),
            radial-gradient(circle at 100% 0%, rgba(147, 51, 234, 0.10), transparent 55%);
        filter: blur(0px);
        transform:
            perspective(900px)
            rotateX(var(--bg-tilt-x, 0deg))
            rotateY(var(--bg-tilt-y, 0deg));
        transition: filter 200ms ease-out;
    }