:root {
  --bg: #07111f;
  --panel: rgba(255,255,255,0.08);
  --panel-strong: rgba(255,255,255,0.12);
  --text: #f6f8fb;
  --muted: #9fb0c8;
  --line: rgba(255,255,255,0.14);
  --accent: #58d5ff;
  --accent-2: #b6f36d;
  --danger: #ff7676;
  --shadow: 0 20px 50px rgba(0,0,0,0.35);
  --radius: 20px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(88,213,255,0.18), transparent 34rem),
    radial-gradient(circle at top right, rgba(182,243,109,0.12), transparent 28rem),
    var(--bg);
  min-height: 100vh;
}

.hero {
  position: relative;
  padding: 24px clamp(18px, 4vw, 56px) 120px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(4, 13, 28, 0.98) 0%, rgba(4, 13, 28, 0.85) 45%, rgba(4, 13, 28, 0.35) 100%),
    url("images/youtube-header.jpg") center right / cover no-repeat;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 30px rgba(88,213,255,0.2);
}
.brand span { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; }
.sheet-link {
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
}
.sheet-link:hover { background: rgba(255,255,255,0.12); }

.hero-content { max-width: 850px; margin-top: 62px; }
.eyebrow {
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-weight: 800;
  font-size: 12px;
  margin: 0 0 10px;
}
h1 { font-size: clamp(38px, 7vw, 76px); line-height: 0.95; margin: 0; }
.subtitle { color: var(--muted); font-size: clamp(17px, 2vw, 22px); line-height: 1.55; max-width: 720px; }

.container { width: min(1180px, calc(100% - 32px)); margin: -28px auto 60px; }
.panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.11), rgba(255,255,255,0.07));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
}
.controls { padding: 18px; }
label { display: block; color: var(--muted); font-size: 13px; font-weight: 700; margin-bottom: 8px; }
input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(0,0,0,0.25);
  color: var(--text);
  padding: 13px 14px;
  font-size: 15px;
  outline: none;
}
input:focus, select:focus { border-color: rgba(88,213,255,0.75); box-shadow: 0 0 0 4px rgba(88,213,255,0.12); }
.search-box { margin-bottom: 14px; }
.filters-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.chip-area { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chip, .objective-buttons button, #clearFilters {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255,255,255,0.06);
  padding: 9px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.chip:hover, .objective-buttons button:hover, #clearFilters:hover { background: rgba(255,255,255,0.14); }
.chip.active, .objective-buttons button.active {
  border-color: rgba(88,213,255,0.9);
  background: rgba(88,213,255,0.18);
}
.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}
#clearFilters { border-radius: 12px; }

.recommendation { padding: 18px; margin-top: 16px; }
.recommendation h2 { margin: 0 0 6px; }
.recommendation p { margin: 0 0 14px; color: var(--muted); }
.objective-buttons { display: flex; flex-wrap: wrap; gap: 8px; }

.results-head { display: flex; justify-content: space-between; align-items: end; margin: 28px 4px 14px; }
.results-head h2 { margin: 0; font-size: 28px; }
.results-head span { color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.07);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  min-height: 244px;
  display: flex;
  flex-direction: column;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-4px); background: rgba(255,255,255,0.11); border-color: rgba(88,213,255,0.45); }
.card-top { display: flex; gap: 13px; align-items: center; margin-bottom: 14px; }
.drone-avatar {
  width: 56px;
  height: 56px;
  flex: 0 0 56px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(88,213,255,0.85), rgba(182,243,109,0.75));
  color: #06111c;
  font-weight: 900;
  overflow: hidden;
}
.drone-avatar img { width: 100%; height: 100%; object-fit: cover; }
.card h3 { margin: 0; font-size: 21px; line-height: 1.2; }
.card-meta { color: var(--muted); font-size: 13px; margin-top: 4px; }
.card-description { color: #d7e1ef; line-height: 1.45; font-size: 14px; margin: 0 0 14px; flex: 1; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.tag {
  color: #d9f8ff;
  background: rgba(88,213,255,0.13);
  border: 1px solid rgba(88,213,255,0.25);
  padding: 5px 8px;
  border-radius: 999px;
  font-size: 12px;
}
.score-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin: 12px 0; }
.score {
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--line);
  padding: 8px;
  border-radius: 12px;
  font-size: 12px;
  color: var(--muted);
}
.score strong { display: block; color: var(--text); font-size: 17px; }

#detailModal {
  width: min(820px, calc(100% - 26px));
  color: var(--text);
  background: #0a1423;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 0;
  box-shadow: var(--shadow);
}
#detailModal::backdrop { background: rgba(0,0,0,0.7); backdrop-filter: blur(5px); }
.modal-head { display: flex; justify-content: space-between; gap: 20px; padding: 22px; border-bottom: 1px solid var(--line); }
.modal-head h2 { margin: 0; font-size: 34px; }
#closeModal {
  width: 42px; height: 42px; border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.08);
  color: var(--text);
  font-size: 28px;
  cursor: pointer;
}
.modal-content { padding: 20px 22px 24px; display: grid; gap: 10px; }
.detail-row { display: grid; grid-template-columns: 220px 1fr; gap: 14px; padding: 12px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,0.04); }
.detail-label { color: var(--muted); font-weight: 800; }
.detail-value { overflow-wrap: anywhere; }
.footer { color: var(--muted); text-align: center; padding: 28px; border-top: 1px solid var(--line); }
.error { color: var(--danger); }

@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .filters-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .topbar { align-items: flex-start; }
  .cards { grid-template-columns: 1fr; }
  .status-row { flex-direction: column; align-items: stretch; }
  .detail-row { grid-template-columns: 1fr; gap: 6px; }
}

.panel.recommender {
  margin-top: 24px;
  padding: 28px 32px 34px;
}

.recommender h2 {
  margin: 0 0 10px;
  font-size: 28px;
  line-height: 1.1;
}

.recommender p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.4;
}

.objective-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
  margin-bottom: 4px;
}

.objective-buttons button {
  padding: 10px 18px;
  border-radius: 999px;
}