/* BigPlants — Marketing & Support Website
   Brand palette taken from the app (lib/core/constants/app_colors.dart) */

:root {
  --primary: #0F5238;
  --primary-container: #2D6A4F;
  --primary-fixed: #B1F0CE;
  --secondary: #3F6653;
  --secondary-container: #BEEAD1;
  --secondary-fixed: #D7F5E3;
  --leaf-mint: #B1F0CE;
  --soil: #6E5C4D;
  --surface: #F8FAF9;
  --surface-low: #F2F4F3;
  --surface-container: #ECEEED;
  --on-surface: #191C1C;
  --on-surface-variant: #404943;
  --outline: #707973;
  --outline-variant: #BFC9C1;
  --white: #FFFFFF;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(15, 82, 56, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 82, 56, 0.14);
  --max-width: 1120px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--on-surface);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary-container); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.2; color: var(--primary); margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 249, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--outline-variant);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--primary);
}
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--on-surface-variant); font-weight: 500; }
.nav a:hover { color: var(--primary); text-decoration: none; }
.nav .btn { color: var(--white); }
.nav-toggle { display: none; background: none; border: 0; font-size: 1.6rem; cursor: pointer; color: var(--primary); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: var(--white);
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  border: 0;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { background: var(--primary-container); text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn.secondary { background: transparent; color: var(--primary); border: 1.5px solid var(--outline-variant); }
.btn.secondary:hover { background: var(--surface-low); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #0F5238 0%, #2D6A4F 55%, #3F6653 100%);
  color: var(--white);
  padding: 80px 0 90px;
}
.hero::after {
  content: "";
  position: absolute;
  right: -120px; top: -120px;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(177,240,206,0.35), transparent 70%);
  border-radius: 50%;
}
.hero .container { position: relative; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero h1 { color: var(--white); }
.hero p { font-size: 1.15rem; color: rgba(255,255,255,0.9); max-width: 30em; }
.hero .badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-actions .btn { background: var(--white); color: var(--primary); }
.hero-actions .btn:hover { background: var(--leaf-mint); }
.hero-actions .btn.secondary { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.4); }
.hero-actions .btn.secondary:hover { background: rgba(255,255,255,0.1); }

/* Phone mockup */
.hero-visual { display: flex; justify-content: center; }
.phone {
  width: 270px;
  aspect-ratio: 9 / 19;
  background: linear-gradient(180deg, #ECEEED, #F8FAF9);
  border-radius: 38px;
  border: 10px solid #0b3a28;
  box-shadow: var(--shadow-lg);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.phone .notch { width: 90px; height: 22px; background: #0b3a28; border-radius: 999px; margin: -8px auto 6px; }
.phone-card {
  background: var(--white);
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 4px 14px rgba(15,82,56,0.08);
}
.phone-card .leaf { font-size: 1.6rem; }
.phone-card h4 { margin: 6px 0 2px; color: var(--primary); font-size: 0.95rem; }
.phone-card span { font-size: 0.78rem; color: var(--on-surface-variant); }
.phone-pill { background: var(--secondary-fixed); color: var(--primary); border-radius: 999px; padding: 4px 10px; font-size: 0.72rem; font-weight: 600; display: inline-block; }

/* ---------- Sections ---------- */
section { padding: 76px 0; }
.section-head { text-align: center; max-width: 40em; margin: 0 auto 52px; }
.section-head p { color: var(--on-surface-variant); font-size: 1.08rem; }
.eyebrow { color: var(--primary-container); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; }

/* Feature grid */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature {
  background: var(--white);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature .icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--secondary-container);
  display: grid; place-items: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.feature h3 { margin-bottom: 8px; }
.feature p { color: var(--on-surface-variant); margin: 0; font-size: 0.97rem; }

/* Alternating showcase */
.showcase { background: var(--surface-low); }
.showcase .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 72px;
}
.showcase .row:last-child { margin-bottom: 0; }
.showcase .row.reverse .text { order: 2; }
.showcase .text h2 { color: var(--primary); }
.showcase .text p { color: var(--on-surface-variant); font-size: 1.05rem; }
.showcase ul { list-style: none; padding: 0; margin: 18px 0 0; }
.showcase li { padding-left: 28px; position: relative; margin-bottom: 10px; color: var(--on-surface-variant); }
.showcase li::before { content: "🌿"; position: absolute; left: 0; }
.mock-panel {
  background: linear-gradient(150deg, #B1F0CE 0%, #BEEAD1 100%);
  border-radius: 24px;
  min-height: 320px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  box-shadow: var(--shadow);
}
.mock-panel .chip { background: var(--white); border-radius: 14px; padding: 14px 18px; box-shadow: 0 3px 10px rgba(15,82,56,0.06); }
.mock-panel .chip strong { color: var(--primary); display: block; }
.mock-panel .chip span { color: var(--on-surface-variant); font-size: 0.88rem; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step { background: var(--white); border-radius: var(--radius); padding: 28px; border: 1px solid var(--outline-variant); position: relative; }
.step .num {
  width: 40px; height: 40px; border-radius: 12px;
  background: var(--primary); color: var(--white);
  display: grid; place-items: center; font-weight: 800; margin-bottom: 14px;
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--on-surface-variant); margin: 0; font-size: 0.96rem; }

/* CTA band */
.cta {
  background: linear-gradient(135deg, #0F5238, #2D6A4F);
  color: var(--white);
  text-align: center;
  border-radius: 28px;
  padding: 60px 32px;
  margin: 0 auto;
  max-width: var(--max-width);
}
.cta h2 { color: var(--white); }
.cta p { color: rgba(255,255,255,0.9); max-width: 34em; margin-left: auto; margin-right: auto; }
.cta .btn { background: var(--white); color: var(--primary); margin-top: 18px; }
.cta .btn:hover { background: var(--leaf-mint); }

/* ---------- Footer ---------- */
.site-footer { background: #0b3a28; color: rgba(255,255,255,0.8); padding: 56px 0 28px; margin-top: 80px; }
.site-footer .cols { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; }
.site-footer h4 { color: var(--white); margin: 0 0 14px; font-size: 1rem; }
.site-footer a { color: rgba(255,255,255,0.8); display: block; margin-bottom: 8px; }
.site-footer a:hover { color: var(--leaf-mint); text-decoration: none; }
.site-footer .brand { color: var(--white); margin-bottom: 12px; }
.site-footer .muted { font-size: 0.9rem; line-height: 1.7; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); margin-top: 36px; padding-top: 20px; font-size: 0.85rem; text-align: center; }

/* ---------- Legal / content pages ---------- */
.page-hero { background: linear-gradient(135deg, #0F5238, #2D6A4F); color: var(--white); padding: 64px 0 56px; }
.page-hero h1 { color: var(--white); margin-bottom: 8px; }
.page-hero p { color: rgba(255,255,255,0.85); margin: 0; }
.content { padding: 56px 0 24px; }
.content .container { max-width: 820px; }
.content h2 { font-size: 1.45rem; margin-top: 2em; }
.content h2:first-child { margin-top: 0; }
.content h3 { font-size: 1.1rem; margin-top: 1.6em; color: var(--primary-container); }
.content p, .content li { color: var(--on-surface-variant); }
.content ul { padding-left: 22px; }
.content li { margin-bottom: 8px; }
.content .updated { color: var(--outline); font-size: 0.9rem; font-style: italic; }
.callout {
  background: var(--secondary-fixed);
  border-left: 4px solid var(--primary-container);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 24px 0;
}
.callout p { margin: 0; color: var(--primary); }

/* FAQ */
.faq details {
  background: var(--white);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  padding: 4px 20px;
  margin-bottom: 14px;
}
.faq summary { cursor: pointer; font-weight: 600; color: var(--primary); padding: 14px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--primary-container); }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--on-surface-variant); margin: 0 0 16px; }

/* Contact cards */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin: 32px 0; }
.contact-card { background: var(--white); border: 1px solid var(--outline-variant); border-radius: var(--radius); padding: 26px; }
.contact-card .icon { font-size: 1.8rem; margin-bottom: 10px; }
.contact-card h3 { margin-bottom: 4px; }
.contact-card p { margin: 0; color: var(--on-surface-variant); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .features, .steps { grid-template-columns: 1fr; }
  .showcase .row { grid-template-columns: 1fr; gap: 28px; }
  .showcase .row.reverse .text { order: 0; }
  .site-footer .cols { grid-template-columns: 1fr; gap: 28px; }
  .contact-grid { grid-template-columns: 1fr; }
  .nav { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; background: var(--surface); padding: 18px 24px; gap: 16px; border-bottom: 1px solid var(--outline-variant); }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
}