:root {
    --green: #3a7d52;
    --green-light: #5a9e70;
    --green-muted: #2d6142;
    --bg: #141a17;
    --bg-card: #1b2420;
    --bg-card2: #1f2b25;
    --text: #e8ede9;
    --text-muted: #8fa898;
    --border: rgba(58,125,82,0.18);
    --radius: 14px;
    --shadow: 0 2px 16px rgba(0,0,0,0.25);
  }
  [data-theme="light"] {
    --bg: #f2f5f2;
    --bg-card: #ffffff;
    --bg-card2: #eaf0ea;
    --text: #1a231e;
    --text-muted: #5a7060;
    --border: rgba(58,125,82,0.15);
    --shadow: 0 2px 16px rgba(0,0,0,0.07);
  }
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
    min-height: 100vh;
  }
 
  /* NAV */
  nav {
    position: sticky; top: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 48px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
  }
  .logo {
    font-family: 'Instrument Serif', serif;
    font-size: 1.35rem;
    color: var(--green);
    letter-spacing: -0.01em;
  }
  .nav-right { display: flex; align-items: center; gap: 20px; }
  .theme-toggle {
    background: none; border: 1px solid var(--border);
    border-radius: 8px; padding: 6px 12px;
    color: var(--text-muted); cursor: pointer; font-size: 0.82rem;
    font-family: 'DM Sans', sans-serif;
    transition: border-color 0.2s, color 0.2s;
  }
  .theme-toggle:hover { border-color: var(--green); color: var(--green); }
  .nav-cta {
    background: var(--green); color: #fff;
    border: none; border-radius: 9px;
    padding: 8px 18px; font-size: 0.88rem;
    font-family: 'DM Sans', sans-serif; font-weight: 500;
    cursor: pointer; transition: background 0.2s;
    text-decoration: none;
  }
  .nav-cta:hover { background: var(--green-light); }
 
  /* LAYOUT */
  section { padding: 96px 48px; max-width: 1060px; margin: 0 auto; }
  section.full { max-width: none; padding-left: 0; padding-right: 0; }
 
  /* HERO */
  .hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    padding-top: 112px;
    padding-bottom: 96px;
  }
  .hero-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--green);
    background: rgba(58,125,82,0.12);
    border: 1px solid var(--border);
    padding: 5px 12px;
    border-radius: 40px;
    margin-bottom: 24px;
  }
  .hero h1 {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(2.4rem, 4vw, 3.4rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 20px;
  }
  .hero h1 em { font-style: italic; color: var(--green); }
  .hero p {
    font-size: 1.08rem;
    color: var(--text-muted);
    max-width: 400px;
    margin-bottom: 36px;
  }
  .hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
  .btn-primary {
    background: var(--green); color: #fff;
    border: none; border-radius: 10px;
    padding: 13px 24px; font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif; font-weight: 500;
    cursor: pointer; transition: background 0.2s;
    text-decoration: none; display: inline-block;
  }
  .btn-primary:hover { background: var(--green-light); }
  .btn-secondary {
    background: none;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 13px 24px; font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer; transition: border-color 0.2s, color 0.2s;
    text-decoration: none; display: inline-block;
  }
  .btn-secondary:hover { border-color: var(--green); color: var(--green); }
 
  /* PHONE MOCKUP */
  .phone-wrap {
    display: flex; justify-content: center; align-items: center;
  }
  .phone {
    width: 220px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 28px 20px 24px;
    box-shadow: var(--shadow);
    position: relative;
  }
  .phone-notch {
    width: 60px; height: 8px;
    background: var(--border);
    border-radius: 4px;
    margin: 0 auto 24px;
  }
  .phone-tag {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 6px;
  }
  .phone-event {
    font-family: 'Instrument Serif', serif;
    font-size: 1.18rem;
    color: var(--text);
    margin-bottom: 18px;
  }
  .phone-row {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--bg-card2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 11px 14px;
    margin-bottom: 10px;
  }
  .phone-row-label { font-size: 0.82rem; color: var(--text-muted); }
  .phone-row-val { font-size: 0.88rem; font-weight: 500; color: var(--text); }
  .phone-badge {
    display: inline-block;
    font-size: 0.72rem; font-weight: 500;
    background: rgba(58,125,82,0.18);
    color: var(--green-light);
    border: 1px solid rgba(58,125,82,0.25);
    border-radius: 40px; padding: 2px 9px;
  }
  .phone-join {
    width: 100%; margin-top: 16px;
    background: var(--green); color: #fff;
    border: none; border-radius: 9px;
    padding: 11px; font-size: 0.9rem;
    font-family: 'DM Sans', sans-serif; font-weight: 500;
    cursor: pointer;
  }
  .phone-avatars {
    display: flex; gap: -6px; margin-bottom: 6px;
  }
  .avatar {
    width: 26px; height: 26px; border-radius: 50%;
    border: 2px solid var(--bg-card);
    margin-right: -8px;
  }
  .avatar:nth-child(1) { background: #6aa882; }
  .avatar:nth-child(2) { background: #4e8c6a; }
  .avatar:nth-child(3) { background: #8cb89e; }
  .avatar:nth-child(4) { background: #3d7354; }
 
  /* SECTION LABEL */
  .section-label {
    font-size: 0.75rem; font-weight: 500;
    letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--green); margin-bottom: 14px;
  }
  .section-title {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(1.9rem, 3vw, 2.6rem);
    line-height: 1.18; letter-spacing: -0.02em;
    color: var(--text); margin-bottom: 16px;
  }
  .section-sub {
    font-size: 1rem; color: var(--text-muted);
    max-width: 480px; margin-bottom: 56px;
  }
 
  /* HOW IT WORKS */
  .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .step {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
  }
  .step-num {
    width: 36px; height: 36px; border-radius: 50%;
    background: rgba(58,125,82,0.12);
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.82rem; font-weight: 500; color: var(--green);
    margin-bottom: 18px;
  }
  .step-icon { font-size: 1.4rem; margin-bottom: 14px; }
  .step h3 { font-size: 1.05rem; font-weight: 500; color: var(--text); margin-bottom: 8px; }
  .step p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.55; }
 
  /* PROBLEM */
  .problem-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 48px; align-items: center;
  }
  .problem-quote {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(1.7rem, 2.5vw, 2.2rem);
    line-height: 1.25; letter-spacing: -0.02em;
    color: var(--text); margin-bottom: 32px;
  }
  .problem-quote em { font-style: italic; color: var(--green); }
  .bullets { display: flex; flex-direction: column; gap: 14px; }
  .bullet {
    display: flex; align-items: flex-start; gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 18px;
  }
  .bullet-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--green); flex-shrink: 0; margin-top: 7px;
  }
  .bullet span { font-size: 0.95rem; color: var(--text-muted); }
 
  /* SOLUTION */
  .solution-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
  .sol-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow);
  }
  .sol-icon { font-size: 1.5rem; margin-bottom: 14px; }
  .sol-card h3 { font-size: 1rem; font-weight: 500; color: var(--text); margin-bottom: 8px; }
  .sol-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.55; }
 
  /* DIVIDER */
  .divider {
    height: 1px; background: var(--border);
    max-width: 1060px; margin: 0 auto;
  }
 
  /* FINAL CTA */
  .final-cta {
    text-align: center;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 96px 48px;
  }
  .final-cta .section-label { justify-content: center; display: block; }
  .final-cta .section-title { margin: 0 auto 14px; }
  .final-cta p { color: var(--text-muted); font-size: 1rem; margin-bottom: 40px; }
  .email-form {
    display: flex; gap: 10px; max-width: 420px;
    margin: 0 auto; flex-wrap: wrap; justify-content: center;
  }
  .email-input {
    flex: 1; min-width: 220px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 13px 16px; font-size: 0.95rem;
    color: var(--text); font-family: 'DM Sans', sans-serif;
    outline: none; transition: border-color 0.2s;
  }
  .email-input::placeholder { color: var(--text-muted); }
  .email-input:focus { border-color: var(--green); }
  .email-submit {
    background: var(--green); color: #fff;
    border: none; border-radius: 10px;
    padding: 13px 22px; font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif; font-weight: 500;
    cursor: pointer; transition: background 0.2s; white-space: nowrap;
  }
  .email-submit:hover { background: var(--green-light); }
  .email-note { font-size: 0.78rem; color: var(--text-muted); margin-top: 14px; }
 
  /* Loops form restyled */
  .newsletter-form-container { width: 100%; max-width: 440px; margin: 0 auto; }
  .newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
  .newsletter-form-input {
    flex: 1; min-width: 220px;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 10px; padding: 13px 16px; font-size: 0.95rem;
    color: var(--text); font-family: 'DM Sans', sans-serif;
    outline: none; transition: border-color 0.2s;
  }
  .newsletter-form-input::placeholder { color: var(--text-muted); }
  .newsletter-form-input:focus { border-color: var(--green); }
  .newsletter-form-button, .newsletter-loading-button {
    background: var(--green); color: #fff; border: none; border-radius: 10px;
    padding: 13px 22px; font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif; font-weight: 500;
    cursor: pointer; transition: background 0.2s; white-space: nowrap;
  }
  .newsletter-form-button:hover { background: var(--green-light); }
  .newsletter-loading-button { display: none; opacity: 0.75; cursor: default; }
  .newsletter-success, .newsletter-error { justify-content: center; text-align: center; }
  .newsletter-success-message { font-family: 'DM Sans', sans-serif; color: var(--green-light); font-size: 1rem; }
  .newsletter-error-message { font-family: 'DM Sans', sans-serif; color: #e05252; font-size: 0.9rem; }
  .newsletter-back-button {
    color: var(--text-muted); font-family: 'DM Sans', sans-serif; font-size: 0.85rem;
    background: transparent; border: none; cursor: pointer; margin: 10px auto;
    display: block; text-decoration: underline;
  }
 
  /* FOOTER */
  footer {
    padding: 32px 48px;
    display: flex; align-items: center; justify-content: space-between;
    border-top: 1px solid var(--border);
    max-width: none;
  }
  .footer-logo {
    font-family: 'Instrument Serif', serif;
    font-size: 1.1rem; color: var(--green);
  }
  .footer-text { font-size: 0.82rem; color: var(--text-muted); }
 
  /* ANIMATIONS */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .hero-left { animation: fadeUp 0.7s ease both; }
  .hero-right { animation: fadeUp 0.7s 0.15s ease both; }
  .step { animation: fadeUp 0.5s ease both; }
  .step:nth-child(2) { animation-delay: 0.08s; }
  .step:nth-child(3) { animation-delay: 0.16s; }
 
  /* RESPONSIVE */
  @media (max-width: 760px) {
    nav { padding: 14px 20px; }
    section { padding: 72px 20px; }
    .hero { grid-template-columns: 1fr; gap: 48px; padding-top: 72px; }
    .phone-wrap { order: -1; }
    .steps { grid-template-columns: 1fr; }
    .problem-grid { grid-template-columns: 1fr; }
    .solution-grid { grid-template-columns: 1fr; }
    .final-cta { padding: 72px 20px; }
    footer { padding: 24px 20px; flex-direction: column; gap: 8px; text-align: center; }
  }