:root {
  --bg: #fdf6ec;
  --card: #ffffff;
  --ink: #3a3a3a;
  --accent: #f4a261;
  --accent-dark: #e76f51;
  --spot: #2a9d8f;
  --muted: #9a9a9a;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--card);
  box-shadow: var(--shadow);
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 1.5rem;
}

h1 { font-size: 1.6rem; }

.btn {
  display: inline-block;
  border: none;
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  color: #fff;
}

.btn-add { background: var(--accent); }
.btn-add:hover { background: var(--accent-dark); }
.btn-spot { background: var(--spot); width: 100%; }
.btn-spot:hover { filter: brightness(0.95); }
.btn-cancel { background: var(--muted); }

.cat-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

.cat-card {
  background: var(--card);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.cat-photo {
  aspect-ratio: 4 / 3;
  background: #f0e6d8;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cat-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.no-photo { font-size: 3rem; opacity: 0.5; }

.cat-body { padding: 1rem; }
.cat-body h2 { margin: 0 0 0.25rem; font-size: 1.2rem; }

.seen {
  margin: 0 0 0.85rem;
  color: var(--spot);
  font-weight: 600;
  font-size: 0.9rem;
}
.seen.never { color: var(--muted); font-style: italic; font-weight: 400; }

.empty { font-size: 1.1rem; }

.add-form {
  background: var(--card);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.add-form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-weight: 600;
}

.add-form input[type="text"],
.add-form input[type="file"] {
  padding: 0.55rem;
  border: 1px solid #e0d6c8;
  border-radius: 8px;
  font-size: 1rem;
}

.hint { font-weight: 400; color: var(--muted); font-size: 0.85rem; }

.actions { display: flex; gap: 0.75rem; align-items: center; }

footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}