/* ============================================================
   PlantMapper — Shared Design System
   Used by every page (Plant Finder, Cottage Garden, future tabs).
   Calming, modern, app-like aesthetic.
   ============================================================ */

:root {
  /* Palette — greens & creams */
  --bg:           #f7f8f3;   /* warm off-white */
  --bg-elev:      #ffffff;
  --bg-cream:     #f6f1e4;   /* soft cream panels */
  --ink:          #1f2a23;   /* deep green-black */
  --ink-soft:     #4a554c;
  --muted:        #76817a;
  --line:         #e6ebe2;
  --line-strong:  #d3dccd;

  --green:        #5e8a5a;   /* primary leaf green */
  --green-deep:   #426544;
  --green-soft:   #eaf1e4;
  --cream:        #f3eedf;
  --earth:        #b9a37e;
  --sun:          #e9b85a;
  --bee:          #d39a2b;

  /* Cottage / ecosystem accent — muted rose */
  --rose:         #c98a93;
  --rose-deep:    #a96b75;
  --rose-soft:    #f4e6e7;

  /* Type */
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Inter", "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Source Serif Pro", Georgia, serif;

  /* Shape */
  --radius-sm: 10px;
  --radius:    16px;
  --radius-lg: 22px;

  /* Shadow */
  --shadow-1: 0 1px 2px rgba(30,45,30,0.04), 0 2px 6px rgba(30,45,30,0.04);
  --shadow-2: 0 4px 10px rgba(30,45,30,0.06), 0 10px 30px rgba(30,45,30,0.06);

  --container: 1180px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body {
  background:
    radial-gradient(1200px 600px at 90% -10%, #e9efe1 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 0%, #eef3e6 0%, transparent 55%),
    var(--bg);
  min-height: 100vh;
}

/* ===================== Tab themes =============================
   Each ecosystem tab can carry its own warm accent by adding a
   theme class to <body>. Structure, type and layout stay identical
   across every tab; only the accent colour and background warmth
   change. Future tabs can add their own theme block the same way. */
body.theme-med {
  --rose:      #c07a4e;   /* terracotta */
  --rose-deep: #9c5a35;
  --rose-soft: #f1e4d4;   /* warm sand */
  --bg-cream:  #f3e9d8;
  background:
    radial-gradient(1200px 600px at 90% -10%, #f1e4d1 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 0%, #eee7d5 0%, transparent 55%),
    var(--bg);
}

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

.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;
}

a { color: var(--green-deep); }

/* ===================== Site navigation ======================= */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.86);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 12px;
  padding-bottom: 12px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px; height: 36px;
  background: var(--green-soft);
  border-radius: 50%;
  flex: none;
}

.brand-name { font-size: 1.05rem; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 500;
  padding: 7px 13px;
  border-radius: 999px;
  transition: background .15s ease, color .15s ease;
}
.nav-links a:hover { background: var(--green-soft); color: var(--green-deep); }
.nav-links a.is-active { background: var(--green); color: #fff; }
.nav-links a.is-active:hover { background: var(--green-deep); color: #fff; }

.nav-soon {
  font-size: 0.78rem;
  color: var(--muted);
  padding: 4px 10px;
  border: 1px dashed var(--line-strong);
  border-radius: 999px;
}

/* ===================== Buttons (shared) ======================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  font: inherit;
  font-weight: 500;
  font-size: 0.96rem;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease,
              box-shadow .2s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--green); color: #fff; box-shadow: var(--shadow-1); }
.btn-primary:hover { background: var(--green-deep); box-shadow: var(--shadow-2); }

.btn-rose { background: var(--rose); color: #fff; box-shadow: var(--shadow-1); }
.btn-rose:hover { background: var(--rose-deep); box-shadow: var(--shadow-2); }

.btn-outline {
  background: var(--bg-elev);
  color: var(--green-deep);
  border-color: var(--line-strong);
}
.btn-outline:hover { border-color: var(--green); background: var(--green-soft); }

.btn-soon {
  background: var(--bg-cream);
  color: var(--earth);
  border: 1px dashed var(--earth);
  cursor: default;
}
.btn-soon:hover { transform: none; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
  padding: 9px 14px;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-size: 0.92rem;
  transition: border-color .15s, color .15s, background .15s;
}
.btn-ghost:hover { border-color: var(--green); color: var(--green-deep); background: var(--green-soft); }

/* ===================== Hero (Plant Finder) ==================== */
.hero { padding: 24px 0 30px; }

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding-top: 16px;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 10px 0 4px;
  color: var(--ink);
  max-width: 16ch;
}

.hero-sub {
  margin: 0;
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  color: var(--ink-soft);
  max-width: 56ch;
}

.hero-cta {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green);
  color: white;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 500;
  box-shadow: var(--shadow-1);
  transition: transform .15s ease, background .15s ease, box-shadow .2s ease;
}
.hero-cta:hover { background: var(--green-deep); transform: translateY(-1px); box-shadow: var(--shadow-2); }

/* ===================== Filter tool ============================ */
.tool {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin: 14px 0 28px;
  box-shadow: var(--shadow-1);
}

.tool-head { margin-bottom: 20px; }

.tool-head h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  margin: 0 0 6px;
}

.tool-sub { margin: 0; color: var(--muted); }
.tool-sub em { font-style: normal; color: var(--green-deep); font-weight: 500; }

.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
}

.field { display: flex; flex-direction: column; gap: 6px; }

.field-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 11px 36px 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--bg-elev);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color .15s ease, box-shadow .15s ease;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%23556356' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
}
.field select:hover { border-color: var(--green); }
.field select:focus-visible {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(94,138,90,0.18);
}

.filter-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 4px;
  flex-wrap: wrap;
}

.count { font-size: 0.9rem; color: var(--muted); }

/* ===================== Plant cards (Finder) =================== */
.results { margin-bottom: 50px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-1);
  transition: transform .18s ease, box-shadow .25s ease, border-color .2s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--line-strong);
}

.card-art {
  height: 160px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--green-soft), #f7f1df 110%);
}

.card-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity .35s ease;
  z-index: 2;
}
.card-photo.loaded { opacity: 1; }

.card-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background-repeat: no-repeat;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 130'><g fill='none' stroke='%235e8a5a' stroke-width='1.4' opacity='0.9'><path d='M100 120 C 95 80, 110 50, 150 35'/><path d='M100 120 C 105 80, 90 50, 50 35'/><path d='M100 120 L 100 60'/></g><g fill='%235e8a5a' opacity='0.85'><ellipse cx='150' cy='35' rx='18' ry='9' transform='rotate(-25 150 35)'/><ellipse cx='50' cy='35' rx='18' ry='9' transform='rotate(25 50 35)'/><ellipse cx='100' cy='55' rx='16' ry='8'/></g></svg>");
  background-size: cover;
  background-position: center;
  opacity: 0.85;
}

.card[data-category="Tree"]      .card-art { background: linear-gradient(160deg, #d9e6cf, #f5ead0); }
.card[data-category="Shrub"]     .card-art { background: linear-gradient(160deg, #e3ecd6, #f3edd5); }
.card[data-category="Climber"]   .card-art { background: linear-gradient(160deg, #dde9d0, #efe1c2); }
.card[data-category="Perennial"] .card-art { background: linear-gradient(160deg, #e6efd9, #fbf2dc); }
.card[data-category="Bulb"]      .card-art { background: linear-gradient(160deg, #efe8d2, #f7e4cc); }
.card[data-category="Grass"]     .card-art { background: linear-gradient(160deg, #e8edd1, #efe7c8); }
.card[data-category="Aquatic"]   .card-art { background: linear-gradient(160deg, #d6e7e3, #e2efdb); }

.card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; }

.card-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.card-cat {
  margin: -4px 0 4px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green-deep);
  font-weight: 600;
}

.card-desc { margin: 0 0 6px; font-size: 0.94rem; color: var(--ink-soft); }

.card-facts {
  margin: 6px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 14px;
  font-size: 0.86rem;
}
.card-facts > div { display: flex; flex-direction: column; }
.card-facts dt {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0;
}
.card-facts dd { margin: 1px 0 0; color: var(--ink); }

.bee-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--bee);
  font-weight: 600;
}
.bee-badge::before {
  content: "";
  width: 10px; height: 10px;
  background: var(--bee);
  border-radius: 999px;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(211,154,43,0.18);
}

.empty {
  background: var(--bg-elev);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 28px;
  color: var(--ink-soft);
  text-align: center;
}
.empty em { color: var(--green-deep); font-style: normal; font-weight: 600; }

/* ===================== Footer ================================= */
.foot {
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,0.6);
  margin-top: 10px;
}
.foot-inner {
  padding: 30px 24px 36px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 26px;
}
.foot-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin: 0 0 10px;
}
.foot-col p { margin: 0 0 8px; color: var(--ink-soft); font-size: 0.9rem; }
.foot-col a {
  display: block;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 3px 0;
}
.foot-col a:hover { color: var(--green-deep); }
.foot-base {
  border-top: 1px solid var(--line);
  padding: 16px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
}

/* ===================== Responsive ============================= */
@media (max-width: 760px) {
  .foot-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .tool { padding: 20px; border-radius: var(--radius); }
  .hero { padding: 14px 0 20px; }
  .hero-cta { width: 100%; justify-content: center; }
  .card-facts { grid-template-columns: 1fr; }
  .foot-inner { grid-template-columns: 1fr; }
  .nav-soon { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}
