/* GreenLuxury Landing Page - Thuần HTML/CSS */

:root{
  --bg: #f6fbf7;
  --surface: #ffffff;
  --text: #0f2a1d;
  --muted: #4d6b5d;
  --brand: #2f9e44;
  --brand-2: #37b24d;
  --accent: #20c997;
  --danger: #e03131;
  --border: rgba(15,42,29,.12);
  --shadow: 0 16px 40px rgba(16,24,40,.12);
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1120px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -10%, rgba(32,201,151,.16), transparent 60%),
              radial-gradient(1000px 600px at 100% 0%, rgba(47,158,68,.14), transparent 55%),
              var(--bg);
}

a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display:block; }

.container{ width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

.skip-link{
  position:absolute;
  left: 16px;
  top: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 999px;
  transform: translateY(-140%);
  transition: transform .2s ease;
  z-index: 999;
}
.skip-link:focus{ transform: translateY(0); outline: none; }

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(246,251,247,.72);
  border-bottom: 1px solid rgba(15,42,29,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: .2px;
}
.brand-mark{
  width: 38px;
  height: 38px;
  display:grid;
  place-items:center;
  background: linear-gradient(135deg, rgba(32,201,151,.22), rgba(47,158,68,.18));
  border: 1px solid rgba(47,158,68,.25);
  border-radius: 12px;
}

.nav{ position: relative; }
.nav-menu{
  display:flex;
  align-items:center;
  gap: 8px;
}
.nav-menu a{
  padding: 10px 12px;
  border-radius: 999px;
  color: rgba(15,42,29,.84);
  font-weight: 600;
  transition: background .2s ease, color .2s ease;
}
.nav-menu a:hover{ background: rgba(32,201,151,.12); color: var(--text); }

.nav-cta{
  background: linear-gradient(135deg, rgba(47,158,68,.18), rgba(32,201,151,.14));
  border: 1px solid rgba(47,158,68,.22);
}

.nav-toggle{
  display:none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(15,42,29,.12);
  background: var(--surface);
  cursor:pointer;
  position: relative;
}
.nav-toggle span{ position:absolute; left: 50%; top: 50%; width: 18px; height: 2px; background: rgba(15,42,29,.7); border-radius: 2px; transform: translate(-50%,-50%); }
.nav-toggle span:first-child{ transform: translate(-50%,-7px); }
.nav-toggle span:last-child{ transform: translate(-50%,5px); }

.hero{ padding: 44px 0 22px; position: relative; overflow:hidden; }
.hero-grid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  align-items:center;
  gap: 22px;
}

.hero-badge{
  display:inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(32,201,151,.12);
  border: 1px solid rgba(32,201,151,.22);
  color: rgba(15,42,29,.88);
  font-weight: 700;
  margin: 0 0 12px;
}

h1{
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.06;
  margin: 0 0 14px;
}
.accent{ color: var(--brand); }

.lead{
  margin: 0 0 18px;
  color: rgba(15,42,29,.76);
  font-size: 16.5px;
  line-height: 1.6;
}

.hero-actions{ display:flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 800;
  border: 1px solid transparent;
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
}
.btn:active{ transform: translateY(1px); }

.btn-primary{
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #062012;
  border-color: rgba(47,158,68,.35);
  box-shadow: 0 14px 30px rgba(47,158,68,.22);
}
.btn-ghost{
  background: rgba(255,255,255,.6);
  border-color: rgba(15,42,29,.12);
  color: rgba(15,42,29,.9);
}

.hero-stats{
  list-style:none;
  padding:0;
  margin: 18px 0 0;
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.hero-stats li{
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(15,42,29,.10);
  border-radius: 16px;
  padding: 14px 12px;
}
.stat-num{ font-weight: 900; font-size: 18px; }
.stat-label{ color: rgba(15,42,29,.70); font-weight: 650; font-size: 13.5px; margin-top: 4px; }

.hero-media{ display:flex; justify-content:flex-end; }
.media-card{
  width: min(420px, 100%);
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(15,42,29,.10);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.media-top{
  padding: 14px 16px;
  display:flex;
  justify-content: space-between;
  align-items:center;
  gap: 14px;
  border-bottom: 1px solid rgba(15,42,29,.08);
  background: linear-gradient(180deg, rgba(32,201,151,.12), rgba(255,255,255,.0));
}
.media-pill{
  font-weight: 900;
  font-size: 12.5px;
  letter-spacing: .4px;
  color: rgba(15,42,29,.82);
  background: rgba(32,201,151,.10);
  border: 1px solid rgba(32,201,151,.18);
  padding: 7px 10px;
  border-radius: 999px;
}

.media-rating{ display:flex; align-items:center; gap: 4px; }
.media-rating-text{ margin-left: 6px; font-weight: 900; }

.media-visual{
  position: relative;
  height: 240px;
  padding: 18px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.veg{
  border-radius: 18px;
  border: 1px solid rgba(15,42,29,.08);
  background: linear-gradient(180deg, rgba(47,158,68,.26), rgba(32,201,151,.14));
  position: relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
}

.veg img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display:block;
}
.veg::after{
  content:"";
  position:absolute;
  width: 70px;
  height: 70px;
  border-radius: 999px;
  top: -22px;
  left: -18px;
  background: rgba(255,255,255,.45);
  filter: blur(.2px);
}
.veg-1{ background: linear-gradient(180deg, rgba(47,158,68,.32), rgba(32,201,151,.10)); }
.veg-2{ background: linear-gradient(180deg, rgba(32,201,151,.32), rgba(47,158,68,.08)); }
.veg-3{ background: linear-gradient(180deg, rgba(47,158,68,.22), rgba(32,201,151,.16)); }
.veg-4{ background: linear-gradient(180deg, rgba(32,201,151,.24), rgba(47,158,68,.10)); }
.veg-5{ background: linear-gradient(180deg, rgba(47,158,68,.28), rgba(32,201,151,.14)); }
.veg-6{ background: linear-gradient(180deg, rgba(32,201,151,.28), rgba(47,158,68,.12)); }

.media-bottom{
  padding: 12px 16px 16px;
  border-top: 1px solid rgba(15,42,29,.08);
  color: rgba(15,42,29,.72);
  font-weight: 650;
}

.hero-waves{
  color: rgba(32,201,151,.16);
  position:absolute;
  left:0; right:0;
  bottom:-10px;
  pointer-events:none;
}

.section{ padding: 56px 0; position: relative; }
.section-alt{ background: linear-gradient(180deg, rgba(255,255,255,.0), rgba(255,255,255,.62)); border-top: 1px solid rgba(15,42,29,.06); border-bottom: 1px solid rgba(15,42,29,.06); }

.section-head{ margin-bottom: 24px; }
.section-head h2{ margin:0 0 10px; font-size: 30px; line-height: 1.2; }
.section-head p{ margin:0; color: rgba(15,42,29,.74); font-weight: 650; }
.section-head-tight h2{ font-size: 28px; }

.features-grid{ display:grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.feature{
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(15,42,29,.10);
  border-radius: var(--radius);
  padding: 18px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.feature:hover{ transform: translateY(-4px); box-shadow: 0 18px 40px rgba(16,24,40,.12); }
.feature-icon{ font-size: 24px; margin-bottom: 10px; }
.feature h3{ margin: 0 0 8px; font-size: 16.5px; }
.feature p{ margin:0; color: rgba(15,42,29,.72); line-height: 1.6; font-weight: 620; }

.product-grid{ display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.product{
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(15,42,29,.10);
  border-radius: var(--radius);
  padding: 18px;
}
.product-media{ font-size: 34px; margin-bottom: 8px; }
.product h3{ margin: 6px 0 8px; font-size: 18px; }
.product p{ margin:0 0 14px; color: rgba(15,42,29,.72); line-height: 1.6; font-weight: 620; }
.product-meta{ display:flex; gap: 8px; flex-wrap: wrap; }
.chip{
  background: rgba(32,201,151,.10);
  border: 1px solid rgba(32,201,151,.18);
  color: rgba(15,42,29,.86);
  font-weight: 850;
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 12.5px;
}

.steps{ list-style:none; padding:0; margin:0; display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.step{
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(15,42,29,.10);
  border-radius: var(--radius);
  padding: 18px;
  display:flex;
  gap: 12px;
}
.step-num{
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display:grid;
  place-items:center;
  background: linear-gradient(135deg, rgba(47,158,68,.22), rgba(32,201,151,.16));
  border: 1px solid rgba(47,158,68,.22);
  font-weight: 950;
}
.step h3{ margin: 2px 0 8px; font-size: 16.5px; }
.step p{ margin:0; color: rgba(15,42,29,.72); line-height: 1.6; font-weight: 620; }

.contact{
  padding-top: 40px;
}
.contact-grid{
  display:grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 18px;
  align-items:start;
}

.contact-cards{ display:grid; grid-template-columns: 1fr; gap: 12px; margin-top: 14px; }
.contact-card{
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(15,42,29,.10);
  border-radius: var(--radius);
  padding: 14px;
  display:flex;
  align-items:center;
  gap: 12px;
}
.contact-card-icon{
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display:grid;
  place-items:center;
  background: rgba(32,201,151,.10);
  border: 1px solid rgba(32,201,151,.18);
  font-size: 20px;
}
.contact-card-label{ font-weight: 900; margin-bottom: 2px; }
.contact-link{ color: var(--brand); font-weight: 900; text-decoration: underline; text-underline-offset: 4px; }
.contact-text{ color: rgba(15,42,29,.72); font-weight: 700; }

.contact-form{
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(15,42,29,.10);
  border-radius: var(--radius);
  padding: 18px;
}

.form-row{ display:grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
label{ display:flex; flex-direction:column; gap: 8px; margin-bottom: 12px; font-weight: 800; color: rgba(15,42,29,.86); }
input, textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(15,42,29,.14);
  background: rgba(255,255,255,.86);
  color: var(--text);
  font-weight: 650;
  outline: none;
}
input:focus, textarea:focus{ border-color: rgba(32,201,151,.65); box-shadow: 0 0 0 4px rgba(32,201,151,.14); }
textarea{ resize: vertical; min-height: 120px; }

.form-actions{ display:flex; align-items:center; justify-content: space-between; gap: 12px; margin-top: 6px; flex-wrap: wrap; }
.form-note{ margin:0; color: rgba(15,42,29,.62); font-weight: 650; font-size: 13px; }

.site-footer{
  padding: 30px 0 46px;
  border-top: 1px solid rgba(15,42,29,.08);
  background: rgba(255,255,255,.35);
}
.footer-inner{ display:flex; align-items:flex-start; justify-content: space-between; gap: 16px; }
.footer-brand{ display:flex; align-items:center; gap: 10px; font-size: 15px; }
.footer-text{ margin: 10px 0 0; color: rgba(15,42,29,.68); font-weight: 650; }
.to-top{ font-weight: 900; color: rgba(15,42,29,.86); border: 1px solid rgba(15,42,29,.14); padding: 10px 12px; border-radius: 999px; background: rgba(255,255,255,.6); }

@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-media{ justify-content:flex-start; }
  .features-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-grid{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .form-row{ grid-template-columns: 1fr; }
  .nav-menu{ display:none; }
  .nav-toggle{ display:inline-block; }
  .nav-menu.open{ display:flex; position:absolute; right:0; top: calc(100% + 10px); flex-direction: column; background: rgba(255,255,255,.92); border: 1px solid rgba(15,42,29,.10); padding: 10px; width: 220px; border-radius: 18px; }
}