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

:root {
  --green-dark:  #2d4a2d;
  --green-mid:   #3d6b3d;
  --green-light: #e8f0e8;
  --amber:       #c8860a;
  --red-invasive:#c0392b;
  --text-main:   #1a2e1a;
  --text-muted:  #5a7a5a;
  --card-radius: 14px;
  --modal-bg:    #fafaf8;
  --chip-bg:     #e0ead0;
  --section-border: #d0ddc0;
}

html { font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--green-light);
  color: var(--text-main);
  min-height: 100dvh;
  overscroll-behavior: none;
}

/* ── Header ───────────────────────────────────────────────────── */
.app-header {
  background: var(--green-dark);
  color: #fff;
  padding: 14px 16px 10px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.35);
}

.app-header h1 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.2;
}

.app-header p {
  font-size: .72rem;
  opacity: .7;
  margin-top: 2px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* ── Search Bar ───────────────────────────────────────────────── */
.search-wrap {
  background: var(--green-dark);
  padding: 0 12px 10px;
  position: sticky;
  top: 68px;
  z-index: 99;
}

.search-input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  border: none;
  border-radius: 999px;
  font-size: 1rem;
  background: rgba(255,255,255,.15);
  color: #fff;
  outline: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,.7)' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 12px center;
  touch-action: manipulation;
}

.search-input::placeholder { color: rgba(255,255,255,.55); }
.search-input:focus { background-color: rgba(255,255,255,.22); }

/* ── Card Grid ────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 12px;
}

.weed-card {
  position: relative;
  border-radius: var(--card-radius);
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
  background: #c8d8c0;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: transform .15s, box-shadow .15s;
}

.weed-card:active { transform: scale(.97); box-shadow: 0 1px 4px rgba(0,0,0,.2); }

.weed-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #b8cab0;
}

.card-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px 10px 10px;
  background: linear-gradient(to top, rgba(0,0,0,.72) 0%, transparent 100%);
  color: #fff;
}

.card-name {
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.2;
  text-shadow: 0 1px 4px rgba(0,0,0,.5);
}

.badge-invasive {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--red-invasive);
  color: #fff;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 999px;
  box-shadow: 0 1px 4px rgba(0,0,0,.3);
}

/* ── No Results ───────────────────────────────────────────────── */
.no-results {
  display: none;
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.no-results .emoji { font-size: 2.5rem; margin-bottom: 10px; }
.no-results p { font-size: .95rem; line-height: 1.5; }

/* ── Modal Overlay ────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* ── Modal Sheet ──────────────────────────────────────────────── */
.modal-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  top: 0;
  z-index: 201;
  background: var(--modal-bg);
  transform: translateY(100%);
  transition: transform .32s cubic-bezier(.32,0,.18,1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-sheet.open { transform: translateY(0); }

/* drag-dismiss indicator */
.modal-drag-bar {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,.5);
  z-index: 10;
  pointer-events: none;
}

/* ── Modal Hero / Carousel ────────────────────────────────────── */
.modal-hero {
  position: relative;
  flex-shrink: 0;
  height: 42vh;
  max-height: 340px;
  background: #b8cab0;
}

/* carousel track — horizontal scroll-snap */
.carousel-track {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  overflow-x: scroll;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.carousel-track::-webkit-scrollbar { display: none; }

.carousel-slide {
  flex-shrink: 0;
  width: 100%;
  height: 100%;
  scroll-snap-align: start;
  position: relative;
  background: #b8cab0;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* placeholder slide for missing photos */
.carousel-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: rgba(255,255,255,.6);
  background: #3a5a3a;
}

.carousel-placeholder .ph-icon { font-size: 2.2rem; opacity: .5; }
.carousel-placeholder .ph-label { font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; }

/* dot indicators */
.carousel-dots {
  position: absolute;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 6;
  pointer-events: none;
}

.carousel-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,.45);
  transition: background .2s, transform .2s;
}

.carousel-dot.active {
  background: #fff;
  transform: scale(1.35);
}

.modal-hero-gradient {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, var(--modal-bg) 0%, transparent 100%);
  pointer-events: none;
  z-index: 5;
}

/* ── Modal Close Bar ──────────────────────────────────────────── */
.modal-close-bar {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 10;
}

.btn-close {
  background: rgba(0,0,0,.45);
  border: none;
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  line-height: 1;
}

/* ── Modal Scrollable Body ────────────────────────────────────── */
.modal-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: 0 16px 32px;
  padding-bottom: max(32px, env(safe-area-inset-bottom));
}

/* ── Modal Content ────────────────────────────────────────────── */
.modal-name {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
  margin-top: 4px;
}

.modal-scientific {
  font-style: italic;
  color: var(--text-muted);
  font-size: .9rem;
  margin-top: 4px;
  margin-bottom: 14px;
}

.modal-family {
  color: var(--text-muted);
  font-size: .8rem;
}

/* chips row */
.chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.chip {
  background: var(--chip-bg);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: .78rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 500;
}

.chip-icon { font-size: .9rem; }

/* invasive warning */
.invasive-warning {
  background: #fde8e8;
  border: 1.5px solid #f0b0b0;
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 18px;
  font-size: .82rem;
  color: #8b1a1a;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.45;
}

.invasive-warning .warn-icon { font-size: 1rem; flex-shrink: 0; margin-top: 1px; }

/* info sections */
.info-section {
  margin-bottom: 20px;
  border: 1.5px solid var(--section-border);
  border-radius: 12px;
  overflow: hidden;
}

.info-section-header {
  background: var(--chip-bg);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-section-icon { font-size: 1.1rem; }

.info-section-title {
  font-weight: 700;
  font-size: .9rem;
  color: var(--green-dark);
  letter-spacing: .02em;
}

.info-section-body {
  padding: 12px 14px;
  font-size: .88rem;
  line-height: 1.6;
  color: var(--text-main);
}

.info-section-body ul {
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.info-section-body li { line-height: 1.45; }

/* ── Footer pad ───────────────────────────────────────────────── */
.grid-footer {
  text-align: center;
  padding: 20px 16px 32px;
  padding-bottom: max(32px, env(safe-area-inset-bottom));
  font-size: .75rem;
  color: var(--text-muted);
}