:root {
  --bg: #F2F4F7;
  --surface: #FFFFFF;
  --border: #E2E8F0;
  --accent: #2B6CB0;
  --accent-light: #EBF4FF;
  --accent-hover: #2C5282;
  --text: #1A202C;
  --muted: #718096;
  --success: #276749;
  --success-bg: #F0FFF4;
  --error: #C53030;
  --error-bg: #FFF5F5;
  --radius: 14px;
  --shadow: 0 2px 12px rgba(0,0,0,0.07);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  padding: 0;
  min-height: 100vh;
}

/* ── Hero ── */
.hero {
  background: var(--accent);
  color: #fff;
  padding: 48px 32px 40px;
  text-align: center;
}
.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.hero p {
  font-size: 1rem;
  opacity: 0.85;
  max-width: 560px;
  margin: 0 auto 24px;
  line-height: 1.6;
}
.badge-row {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center;
}
.badge {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 40px;
  padding: 5px 14px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* ── Filter tabs ── */
.filter-wrap {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.filter-wrap::-webkit-scrollbar { display: none; }
.tab {
  flex-shrink: 0;
  padding: 14px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.tab:hover { color: var(--accent); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── Grid ── */
.main { padding: 28px 20px 60px; max-width: 1320px; margin: 0 auto; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

/* ── Card ── */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.18s, transform 0.18s;
}
.card:hover { box-shadow: 0 8px 28px rgba(0,0,0,0.11); transform: translateY(-2px); }
.card[data-hidden="true"] { display: none; }

.card-header {
  padding: 18px 20px 14px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-bottom: 1px solid var(--border);
}
.card-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-light);
}
.card-icon svg { width: 22px; height: 22px; stroke: var(--accent); }
.card-title { font-weight: 700; font-size: 0.97rem; color: var(--text); margin-bottom: 3px; }
.card-desc { font-size: 0.82rem; color: var(--muted); line-height: 1.45; }

.card-body { padding: 16px 20px; flex: 1; display: flex; flex-direction: column; gap: 12px; }

/* ── Drop zone ── */
.drop {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 22px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: var(--bg);
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-light); }
.drop-icon { font-size: 1.6rem; margin-bottom: 6px; }
.drop-text { font-size: 0.82rem; color: var(--muted); }
.drop-text strong { color: var(--accent); }

/* ── File list ── */
.file-list { display: none; gap: 4px; flex-direction: column; }
.file-item {
  background: var(--bg); border-radius: 7px;
  padding: 6px 10px; font-size: 0.78rem; color: var(--text);
  display: flex; align-items: center; gap: 6px;
}
.file-item span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-item .sz { color: var(--muted); flex-shrink: 0; }

/* ── Options ── */
.opts { display: flex; flex-wrap: wrap; gap: 10px; }
.opt { flex: 1 1 130px; display: flex; flex-direction: column; gap: 4px; }
.opt label { font-size: 0.75rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.opt select, .opt input[type="number"], .opt input[type="range"] {
  width: 100%; padding: 8px 12px; border-radius: 8px;
  border: 1.5px solid var(--border); background: var(--surface);
  font-size: 0.85rem; color: var(--text); outline: none;
  transition: border-color 0.15s;
}
.opt select:focus, .opt input:focus { border-color: var(--accent); }
.opt-checkbox { display: flex; align-items: center; gap: 6px; padding-top: 22px; }
.opt-checkbox input { width: 16px; height: 16px; accent-color: var(--accent); }
.opt-checkbox label { font-size: 0.83rem; color: var(--text); font-weight: 500; text-transform: none; letter-spacing: 0; }

/* ── Button ── */
.btn-go {
  width: 100%; padding: 12px;
  background: var(--accent); color: #fff;
  border: none; border-radius: 10px;
  font-weight: 700; font-size: 0.93rem;
  cursor: pointer; transition: background 0.15s, opacity 0.15s;
  margin-top: auto;
}
.btn-go:hover { background: var(--accent-hover); }
.btn-go:disabled { opacity: 0.45; cursor: not-allowed; }

/* ── Status ── */
.status {
  border-radius: 8px; padding: 10px 14px;
  font-size: 0.83rem; font-weight: 500;
  display: none;
}
.status.ok { background: var(--success-bg); color: var(--success); display: block; }
.status.err { background: var(--error-bg); color: var(--error); display: block; }
.status.loading { background: var(--accent-light); color: var(--accent); display: block; }

/* ── Image preview ── */
.img-preview { display: none; gap: 6px; flex-wrap: wrap; }
.img-preview img {
  width: 56px; height: 56px; object-fit: cover;
  border-radius: 6px; border: 1px solid var(--border);
}

/* ── Crop canvas ── */
.crop-wrap {
  display: none; position: relative;
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
  background: #111; cursor: crosshair; max-height: 240px;
}
.crop-wrap canvas { display: block; max-width: 100%; max-height: 240px; }
#crop-sel {
  position: absolute; border: 2px solid #fff;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.5);
  pointer-events: none; display: none;
}

footer {
  text-align: center; padding: 24px;
  font-size: 0.8rem; color: var(--muted);
  border-top: 1px solid var(--border);
  background: var(--surface);
}