:root {
    --lime:      #cfdf58;
    --lime-dark: #b2c526;
    --forest:    #2e6645;
    --sage:      #5a7a66;
    --ink:       #161d19;
    --ink-light: #3a4a40;
    --bg:        #f4f7f0;
    --white:     #ffffff;
    --surface:   #eef2e8;
    --border:    rgba(46,102,69,0.13);
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--ink); overflow-x: hidden; }

  /* NAV */
  nav {
    position: fixed; top: 0; width: 100%; z-index: 100;
    padding: 0.9rem 2rem;
    display: flex; justify-content: space-between; align-items: center;
    background: rgba(244,247,240,0.93);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }
  .nav-brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; }
  .nav-logo-wrap { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; }
  .nav-logo { height: 36px; width: auto; display: block; }
  .nav-wordmark {
    font-family: 'Fraunces', serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--forest);
    letter-spacing: -0.03em;
    line-height: 1;
  }
  .nav-wordmark { font-family: 'Fraunces', serif; font-size: 1.3rem; font-weight: 700; color: var(--forest); letter-spacing: -0.03em; line-height: 1; }
  .nav-cta {
    background: var(--forest); color: var(--lime);
    padding: 0.6rem 1.3rem; border-radius: 100px;
    text-decoration: none; font-size: 0.875rem; font-weight: 600;
    transition: all 0.2s; letter-spacing: -0.01em;
  }
  .nav-cta:hover { background: var(--ink); transform: translateY(-1px); }

  /* HERO */
  #hero {
    min-height: 100vh; background: var(--forest);
    position: relative; display: flex; align-items: center;
    padding: 7rem 2rem 5rem; overflow: hidden;
  }
  #hero::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(circle, rgba(207,223,88,0.15) 1px, transparent 1px);
    background-size: 28px 28px; pointer-events: none;
  }
  .hero-arc {
    position: absolute; right: -140px; top: -100px;
    width: 750px; height: 750px; border-radius: 50%;
    border: 100px solid var(--lime); opacity: 0.07; pointer-events: none;
  }

  .hero-phones {
    position: absolute; right: 5vw; top: 50%;
    transform: translateY(-50%);
    display: flex; gap: 14px; align-items: flex-end; z-index: 2;
  }
  .phone-frame {
    border-radius: 22px; overflow: hidden;
    border: 2px solid rgba(207,223,88,0.2);
    box-shadow: 0 24px 60px rgba(0,0,0,0.35);
    background: #111; flex-shrink: 0;
  }
  .phone-frame img { width: 100%; display: block; }
  .phone-frame.featured {
    border-color: rgba(207,223,88,0.45);
    box-shadow: 0 32px 80px rgba(0,0,0,0.45); z-index: 3;
  }

  .hero-content { position: relative; z-index: 3; max-width: 530px; }
  .hero-tag {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: rgba(207,223,88,0.13); color: var(--lime);
    font-size: 0.8rem; font-weight: 500;
    padding: 0.4rem 0.9rem; border-radius: 100px; margin-bottom: 1.75rem;
    border: 1px solid rgba(207,223,88,0.22);
  }
  h1 {
    font-family: 'Fraunces', serif;
    font-size: clamp(3rem, 6vw, 4.8rem); font-weight: 700;
    color: var(--white); line-height: 1.05; margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
  }
  h1 em { font-style: italic; color: var(--lime); font-weight: 400; }
  .hero-sub {
    font-size: 1.05rem; color: rgba(255,255,255,0.62);
    line-height: 1.75; margin-bottom: 2.25rem;
    font-weight: 300; max-width: 440px;
  }
  .hero-cta-row {
    display: flex; flex-wrap: wrap; gap: 0.9rem;
    align-items: center; margin-bottom: 2rem;
  }
  .btn-gplay { display: inline-block; transition: transform 0.2s, opacity 0.2s; }
  .btn-gplay:hover { transform: translateY(-2px); opacity: 0.92; }
  .btn-gplay img { height: 52px; width: auto; display: block; }
  .btn-outline-light {
    display: inline-flex; align-items: center; gap: 0.4rem;
    color: rgba(255,255,255,0.6); font-size: 0.9rem; text-decoration: none;
    border-bottom: 1px solid rgba(255,255,255,0.25); padding-bottom: 2px;
    transition: color 0.2s, border-color 0.2s; font-weight: 400;
  }
  .btn-outline-light:hover { color: var(--lime); border-color: var(--lime); }
  .hero-pills { display: flex; gap: 1.25rem; flex-wrap: wrap; }
  .pill { font-size: 0.78rem; color: rgba(255,255,255,0.4); display: flex; align-items: center; gap: 0.4rem; }
  .pill-dot { width: 5px; height: 5px; background: var(--lime-dark); border-radius: 50%; opacity: 0.7; }

  /* PROBLEM */
  #problem { background: var(--white); padding: 6rem 2rem; }
  #problem .container { max-width: 680px; margin: 0 auto; text-align: center; }
  .section-tag {
    display: inline-block; font-size: 0.72rem; font-weight: 600;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--sage); margin-bottom: 1.25rem;
  }
  .problem-headline {
    font-family: 'Fraunces', serif;
    font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 700;
    line-height: 1.15; color: var(--forest); margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
  }
  .problem-text { font-size: 1.1rem; line-height: 1.8; color: var(--ink-light); font-weight: 300; }
  .problem-text strong { font-weight: 600; color: var(--forest); }
  .highlight {
    display: inline-block; background: var(--lime); color: var(--forest);
    padding: 0.05em 0.35em; border-radius: 4px; font-weight: 700;
  }

  /* FEATURES */
  #features { background: var(--surface); padding: 6rem 2rem; }
  .section-header-row {
    display: flex; justify-content: space-between;
    align-items: flex-end; margin-bottom: 3rem; gap: 2rem; flex-wrap: wrap;
  }
  #features h2 {
    font-family: 'Fraunces', serif;
    font-size: clamp(1.9rem, 3.5vw, 2.5rem); font-weight: 700;
    color: var(--forest); line-height: 1.2; letter-spacing: -0.03em; max-width: 380px;
  }
  .section-sub { font-size: 0.92rem; color: var(--sage); max-width: 240px; line-height: 1.6; font-weight: 300; text-align: right; }
  .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
  .feature-card {
    background: var(--white); border: 1px solid var(--border);
    border-radius: 16px; padding: 2rem 1.75rem;
    transition: transform 0.25s, box-shadow 0.25s;
    position: relative; overflow: hidden;
  }
  .feature-card::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
    background: var(--lime); border-radius: 0 0 16px 16px;
    transform: scaleX(0); transition: transform 0.3s;
  }
  .feature-card:hover { transform: translateY(-5px); box-shadow: 0 20px 50px rgba(46,102,69,0.1); }
  .feature-card:hover::after { transform: scaleX(1); }
  .feature-icon { font-size: 2rem; margin-bottom: 1.25rem; display: block; }
  .feature-card h3 {
    font-family: 'Fraunces', serif; font-size: 1.2rem; font-weight: 700;
    margin-bottom: 0.75rem; color: var(--forest); letter-spacing: -0.02em; line-height: 1.3;
  }
  .feature-card p { font-size: 0.9rem; line-height: 1.7; color: var(--ink-light); font-weight: 300; }

  /* SCREENSHOTS */
  #screenshots { background: var(--white); padding: 5rem 2rem; }
  #screenshots .section-header-center { text-align: center; margin-bottom: 3.5rem; }
  #screenshots h2 {
    font-family: 'Fraunces', serif; font-size: clamp(1.7rem, 3vw, 2.2rem);
    color: var(--forest); font-weight: 700; letter-spacing: -0.03em; margin-bottom: 0.5rem;
  }
  #screenshots p.sub { color: var(--sage); font-size: 0.92rem; font-weight: 300; }
  .screenshots-row { display: flex; gap: 1.5rem; justify-content: center; align-items: flex-end; flex-wrap: wrap; }
  .screen-wrap { display: flex; flex-direction: column; align-items: center; gap: 0.9rem; }
  .screen-label { font-size: 0.75rem; font-weight: 500; color: var(--sage); letter-spacing: 0.04em; text-transform: uppercase; }
  .screen-img {
    border-radius: 20px; overflow: hidden;
    border: 1.5px solid var(--border);
    box-shadow: 0 20px 50px rgba(46,102,69,0.1);
    transition: transform 0.3s; flex-shrink: 0;
  }
  .screen-wrap.featured .screen-img {
    border-color: rgba(207,223,88,0.55);
    box-shadow: 0 28px 70px rgba(46,102,69,0.18);
  }
  .screen-img:hover { transform: translateY(-6px); }
  .screen-img img { width: 100%; height: auto; display: block; }

  /* PERSONAS */
  #personas { background: var(--forest); padding: 6rem 2rem; position: relative; overflow: hidden; }
  #personas::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(circle, rgba(207,223,88,0.07) 1px, transparent 1px);
    background-size: 32px 32px; pointer-events: none;
  }
  #personas .section-header-center { text-align: center; margin-bottom: 3.5rem; position: relative; z-index: 2; }
  #personas .section-tag { color: var(--lime-dark); }
  #personas h2 {
    font-family: 'Fraunces', serif; font-size: clamp(1.9rem, 3.5vw, 2.6rem);
    color: var(--white); font-weight: 700; letter-spacing: -0.03em; line-height: 1.2;
  }
  #personas h2 em { font-style: italic; color: var(--lime); font-weight: 400; }
  .personas-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; position: relative; z-index: 2; }
  .persona-card {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px; padding: 2rem 1.75rem; transition: background 0.25s, border-color 0.25s;
  }
  .persona-card:hover { background: rgba(255,255,255,0.09); border-color: rgba(207,223,88,0.3); }
  .persona-icon { font-size: 2rem; margin-bottom: 1rem; display: block; }
  .persona-card h3 {
    font-family: 'Fraunces', serif; font-size: 1.15rem; font-weight: 700;
    color: var(--white); margin-bottom: 0.6rem; letter-spacing: -0.02em;
  }
  .persona-card p { font-size: 0.88rem; line-height: 1.7; color: rgba(255,255,255,0.55); font-weight: 300; }

  /* CTA */
  #cta-final { background: var(--lime); padding: 6rem 2rem; text-align: center; position: relative; overflow: hidden; }
  #cta-final::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(circle, rgba(46,102,69,0.1) 1px, transparent 1px);
    background-size: 24px 24px; pointer-events: none;
  }
  #cta-final .content { position: relative; z-index: 2; max-width: 600px; margin: 0 auto; }
  #cta-final h2 {
    font-family: 'Fraunces', serif; font-size: clamp(2.2rem, 5vw, 3.5rem);
    color: var(--forest); font-weight: 700; margin-bottom: 1rem;
    line-height: 1.1; letter-spacing: -0.04em;
  }
  #cta-final p { font-size: 1rem; color: rgba(46,102,69,0.7); margin-bottom: 2.5rem; font-weight: 300; line-height: 1.7; }
  .cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; align-items: center; }
  .btn-gplay-dark { display: inline-block; transition: transform 0.2s, filter 0.2s; }
  .btn-gplay-dark:hover { transform: translateY(-2px); filter: brightness(0.9); }
  .btn-gplay-dark img { height: 52px; width: auto; display: block; }
  .btn-outline-forest {
    display: inline-flex; align-items: center; gap: 0.5rem; color: var(--forest);
    border: 2px solid rgba(46,102,69,0.3); padding: 0.85rem 1.7rem; border-radius: 100px;
    font-size: 0.9rem; text-decoration: none; font-family: 'DM Sans', sans-serif;
    transition: all 0.2s; font-weight: 500;
  }
  .btn-outline-forest:hover { border-color: var(--forest); background: rgba(46,102,69,0.08); }

  /* FOOTER */
  footer { background: var(--ink); padding: 2.5rem 2rem; text-align: center; }
  .footer-brand { display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none; justify-content: center; margin-bottom: 1.25rem; }
  .footer-logo-wrap { display: flex; align-items: center; gap: 0.5rem; justify-content: center; margin-bottom: 1.25rem; text-decoration: none; }
  .footer-logo { height: 32px; width: auto; display: block; filter: brightness(10); opacity: 0.85; }
  .footer-wordmark {
    font-family: 'Fraunces', serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--bg);
    opacity: 0.85;
    letter-spacing: -0.03em;
    line-height: 1;
  }
  .footer-wordmark { font-family: 'Fraunces', serif; font-size: 1.15rem; font-weight: 700; color: rgba(244,247,240,0.85); letter-spacing: -0.03em; }
  .footer-links { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1.25rem; }
  .footer-links a { color: rgba(244,247,240,0.35); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; font-weight: 300; }
  .footer-links a:hover { color: var(--lime); }
  .footer-copy { color: rgba(244,247,240,0.2); font-size: 0.78rem; }
  .ios-note { color: rgba(244,247,240,0.25); font-size: 0.75rem; margin-top: 0.5rem; font-weight: 300; }

  /* REVEAL */
  .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
  .reveal.visible { opacity: 1; transform: translateY(0); }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }

  .container { max-width: 1060px; margin: 0 auto; }

  @media (max-width: 900px) {
    .hero-phones { display: none; }
    .hero-content { max-width: 100%; }
    .features-grid { grid-template-columns: 1fr; }
    .personas-grid { grid-template-columns: 1fr; gap: 1rem; }
    .section-header-row { flex-direction: column; align-items: flex-start; }
    .section-sub { text-align: left; max-width: 100%; }
  }
  @media (max-width: 600px) {
    #hero { padding-top: 6rem; }
    nav { padding: 0.85rem 1.25rem; }
    .screenshots-row { gap: 0.75rem; }
  }