/* =====================
       RESET & VARIABLES
    ====================== */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    :root {
      --primary: #1f6f54;        /* forest green */
      --primary-dark: #14523e;
      --accent: #9fcfb9;         /* soft sage */
      --dark: #0f2f24;           /* deep evergreen */
      --gray: #5f7f73;
      --light: #f4f9f7;
      --border: #dbe7e1;
      --white: #ffffff;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      color: var(--dark);
      line-height: 1.6;
      background: var(--white);
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* =====================
       BUTTONS
    ====================== */
    .btn {
      display: inline-block;
      padding: 0.75rem 1.5rem;
      border-radius: 6px;
      font-weight: 600;
      transition: 0.3s ease;
    }

    .btn-primary {
      background: var(--primary);
      color: white;
    }

    .btn-primary:hover {
      background: var(--primary-dark);
    }

    .btn-outline {
      border: 1px solid var(--border);
      color: var(--dark);
      background: white;
    }

    /* =====================
       NAVBAR
    ====================== */
    header {
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      background: var(--white);
      z-index: 100;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,0.8);
    }

    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }

    .logo {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: 0.5px;
    }

    .nav-links {
      display: flex;
      gap: 1.5rem;
      font-weight: 500;
      color: var(--gray);
    }

    /* =====================
             HERO
    ====================== */
    .hero {
      padding: 5.5rem 0;
      background: linear-gradient(
        180deg,
        var(--light),
        var(--white)
      );
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 3rem;
      align-items: center;
    }

    .hero h1 {
      font-size: 3rem;
      line-height: 1.2;
      margin-bottom: 1rem;
      color: var(--dark);
    }

    .hero p {
      color: var(--gray);
      margin-bottom: 2rem;
      font-size: 1.1rem;
      max-width: 520px;
    }

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

    .hero-mockup {
      background: linear-gradient(
        135deg,
        #163c2f,
        #0f2f24
      );
      border-radius: 14px;
      height: 320px;
      box-shadow: 0 20px 45px rgba(15, 47, 36, 0.25);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    /* =====================
            SECTIONS
    ====================== */
    .section {
      padding: 4.5rem 0;
    }

    .section-title {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 3rem;
    }

    .section-title h2 {
      font-size: 2.2rem;
      margin-bottom: 0.75rem;
    }

    .section-title p {
      color: var(--gray);
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .feature-card {
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 2.2rem;
      background: var(--white);
      transition: 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 35px rgba(15, 47, 36, 0.08);
    }

    .feature-icon {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: var(--primary);
      margin-bottom: 1rem;
    }

    .feature-card h3 {
      margin-bottom: 0.5rem;
    }

    .feature-card p {
      color: var(--gray);
    }


    /* =====================
              CTA
    ====================== */
    .cta {
      background: linear-gradient(
        135deg,
        #1f6f54,
        #14523e
      );
      color: white;
      text-align: center;
      padding: 4.5rem 1.5rem;
      border-radius: 18px;
      margin: 4rem auto;
      max-width: 1000px;
    }

    .cta h2 {
      font-size: 2.3rem;
      margin-bottom: 1rem;
    }

    .cta p {
      color: #d8efe6;
      margin-bottom: 2rem;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    /* =====================
             FOOTER
    ====================== */
    footer {
      border-top: 1px solid var(--border);
      padding: 2rem 0;
      color: var(--gray);
      font-size: 0.9rem;
    }

    .footer-grid {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }


    
    /* =====================
          RESPONSIVE
    ====================== */
    @media (max-width: 900px) {
      .hero-grid { grid-template-columns: 1fr; }
      .features-grid { grid-template-columns: 1fr; }
      .hero h1 { font-size: 2.4rem; }
    }