/* ── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green-50:  #f0fdf4;
  --green-100: #dcfce7;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  --green-900: #14532d;
  --stone-50:  #fafaf9;
  --stone-100: #f5f5f4;
  --stone-600: #57534e;
  --stone-800: #292524;
  --white: #ffffff;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,.12);
  --transition: .25s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  color: var(--stone-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
input, textarea, button { font-family: inherit; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.75rem; border-radius: 999px; font-weight: 600;
  font-size: .95rem; cursor: pointer; border: 2px solid transparent;
  transition: var(--transition); white-space: nowrap;
}
.btn--primary {
  background: var(--green-600); color: var(--white);
}
.btn--primary:hover { background: var(--green-700); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn--outline {
  border-color: var(--green-600); color: var(--green-700);
}
.btn--outline:hover { background: var(--green-50); }

/* ── Nav ─────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,.9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--stone-100);
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: var(--shadow); }
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1140px; margin: 0 auto; padding: 1rem 1.5rem;
}
.nav__logo {
  display: flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: 1.2rem; color: var(--green-700);
}
.nav__logo-icon { font-size: 1.4rem; }
.nav__links {
  display: flex; gap: 2rem;
}
.nav__links a {
  font-weight: 500; font-size: .9rem; color: var(--stone-600);
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--green-700); }
.nav__toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--stone-800); }

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--green-50) 0%, var(--stone-50) 60%);
  padding: 7rem 1.5rem 4rem;
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -20%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--green-100) 0%, transparent 70%);
  border-radius: 50%;
}
.hero__content { max-width: 640px; position: relative; z-index: 1; }
.hero__tag {
  display: inline-block; background: var(--green-100); color: var(--green-700);
  font-size: .8rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  padding: .3rem .8rem; border-radius: 999px; margin-bottom: 1.25rem;
}
.hero__title {
  font-family: var(--font-display); font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.1; color: var(--green-900); margin-bottom: 1.25rem;
}
.hero__title em { color: var(--green-600); font-style: normal; }
.hero__sub { font-size: 1.1rem; color: var(--stone-600); max-width: 480px; margin-bottom: 2rem; }
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__visual { position: absolute; right: 10%; top: 50%; transform: translateY(-50%); }
.hero__badge {
  background: var(--white); border-radius: var(--radius); padding: 2rem 2.5rem;
  box-shadow: var(--shadow-lg); text-align: center;
  border-top: 4px solid var(--green-500);
}
.hero__badge-num { display: block; font-family: var(--font-display); font-size: 4rem; color: var(--green-600); line-height: 1; }
.hero__badge-txt { font-size: .9rem; font-weight: 600; color: var(--stone-600); text-transform: uppercase; letter-spacing: .1em; }

/* ── Stats ────────────────────────────────────────────────────────────────── */
.stats { background: var(--green-700); padding: 3.5rem 0; }
.stats__grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 2rem; text-align: center;
}
.stat__num { display: block; font-family: var(--font-display); font-size: 2.8rem; color: var(--white); line-height: 1; }
.stat__label { font-size: .85rem; color: var(--green-100); font-weight: 500; margin-top: .3rem; }

/* ── Sections ────────────────────────────────────────────────────────────── */
.section { padding: 6rem 0; }
.section--alt { background: var(--stone-50); }
.section__tag {
  display: inline-block; background: var(--green-100); color: var(--green-700);
  font-size: .8rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  padding: .3rem .8rem; border-radius: 999px; margin-bottom: 1rem;
}
.section__title { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 1rem; line-height: 1.2; }
.section__header { text-align: center; max-width: 600px; margin: 0 auto 3rem; }
.section__header p { color: var(--stone-600); }
.section__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.section__text p { color: var(--stone-600); margin-bottom: 1.5rem; }

/* ── Check list ──────────────────────────────────────────────────────────── */
.check-list li {
  padding: .4rem 0 .4rem 1.8rem; position: relative; color: var(--stone-600);
}
.check-list li::before {
  content: '✓'; position: absolute; left: 0; color: var(--green-600); font-weight: 700;
}

/* ── Card stack ──────────────────────────────────────────────────────────── */
.card-stack { position: relative; height: 260px; }
.card-stack__item {
  position: absolute; background: var(--white); border-radius: var(--radius);
  padding: 1.25rem 1.75rem; box-shadow: var(--shadow); font-weight: 600; white-space: nowrap;
  border-left: 4px solid var(--green-500);
}
.card-stack__item--1 { top: 0; left: 0; }
.card-stack__item--2 { top: 80px; left: 40px; }
.card-stack__item--3 { top: 160px; left: 80px; }

/* ── Products ────────────────────────────────────────────────────────────── */
.products__grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem;
}
.product-card {
  background: var(--white); border-radius: var(--radius); padding: 2rem;
  box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition);
  border-top: 4px solid var(--green-500);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.product-card__emoji { font-size: 2.5rem; margin-bottom: 1rem; }
.product-card h3 { font-size: 1.1rem; margin-bottom: .5rem; color: var(--green-900); }
.product-card p { font-size: .9rem; color: var(--stone-600); }

/* ── Contact form ────────────────────────────────────────────────────────── */
.contact-form { max-width: 680px; margin: 0 auto; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form__group { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1.25rem; }
.form__group label { font-size: .85rem; font-weight: 600; color: var(--stone-800); }
.form__group input, .form__group textarea {
  padding: .75rem 1rem; border: 1.5px solid #e2e8f0; border-radius: 8px;
  font-size: .95rem; transition: border-color var(--transition);
  background: var(--white); color: var(--stone-800);
}
.form__group input:focus, .form__group textarea:focus {
  outline: none; border-color: var(--green-500);
}
.form__group input.error, .form__group textarea.error { border-color: #ef4444; }
.form__footer { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.form__status { font-size: .9rem; font-weight: 500; }
.form__status.success { color: var(--green-600); }
.form__status.error   { color: #ef4444; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer { background: var(--green-900); color: var(--green-100); padding: 4rem 0 2rem; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer__tagline { font-size: .9rem; color: var(--green-100); margin-top: .5rem; opacity: .7; }
.footer h4 { font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 1rem; color: var(--white); }
.footer p, .footer a { font-size: .9rem; color: var(--green-100); opacity: .8; line-height: 2; }
.footer a:hover { opacity: 1; color: var(--green-500); }
.footer .nav__logo { color: var(--white); }
.footer__copy { border-top: 1px solid rgba(255,255,255,.1); padding-top: 1.5rem; text-align: center; }
.footer__copy p { font-size: .85rem; opacity: .5; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .section__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__visual { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .form__row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav__links { display: none; }
  .nav__links.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--white); padding: 1rem 1.5rem; box-shadow: var(--shadow); gap: 1rem; }
  .nav__toggle { display: block; }
  .hero { padding-top: 5rem; }
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
}