:root {
  --bg: #080b12;
  --panel: #0f1422;
  --panel-2: #0d1324;
  --card: #0f172a;
  --card-2: #0c1324;
  --border: #1c2740;
  --muted: #95a4c5;
  --text: #e9f1ff;
  --accent: #58c567;
  --accent-2: #79d085;
  --report-again: #ef4444;
  --report-hard: #f97316;
  --report-good: #facc15;
  --report-easy: #22c55e;
  --report-unanswered: #4b5563;
  --good: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;
  --radius: 16px;
  --shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #101822;
}

::-webkit-scrollbar-thumb {
  background: #233348;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #324867;
}

body {
  margin: 0;
  font-family: "Noto Sans", "Inter", system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 14% 20%, rgba(121, 208, 133, 0.09), transparent 28%),
    radial-gradient(circle at 92% 0%, rgba(88, 197, 103, 0.08), transparent 24%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

h1,
h2,
h3,
.brand-name,
.logo {
  font-family: "Lexend", "Inter", system-ui, -apple-system, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(8, 11, 18, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "brand account"
    "select progress";
  gap: 10px 16px;
  align-items: center;
  padding: 14px 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  grid-area: brand;
}

.logo {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  color: #0a1020;
  font-weight: 800;
  box-shadow: 0 12px 35px rgba(88, 197, 103, 0.35);
  letter-spacing: -0.01em;
}

.brand-name {
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-sub {
  color: var(--muted);
  font-size: 13px;
}

.select-wrap {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px 12px;
  min-width: 220px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 6px;
  width: 100%;
}

select {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 14px;
  width: 100%;
  font-family: inherit;
  appearance: none;
  padding: 6px 0;
}

select:focus-visible {
  outline: none;
}

.chevron {
  color: var(--muted);
  font-size: 16px;
}

.btn {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, box-shadow 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: 0 10px 35px rgba(88, 197, 103, 0.15);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b0f1d;
  border-color: transparent;
  box-shadow: 0 12px 40px rgba(88, 197, 103, 0.35);
}

.btn.ghost {
  background: transparent;
  border-style: dashed;
}

.pill {
  background: rgba(88, 197, 103, 0.1);
  color: var(--text);
  border: 1px solid rgba(88, 197, 103, 0.3);
  border-radius: 12px;
  padding: 8px 12px;
  font-weight: 600;
  width: fit-content;
}

#progressShort {
  font-size: 14px;
  line-height: 1.2;
}

.pill-small {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--muted);
  font-size: 12px;
  width: fit-content;
}

.filter-pill {
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, box-shadow 120ms ease, background 120ms ease;
}

.filter-pill:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.filter-pill.selected {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(121, 208, 133, 0.16);
  box-shadow: 0 10px 30px rgba(88, 197, 103, 0.2);
}

.badge {
  background: rgba(121, 208, 133, 0.12);
  border: 1px solid rgba(121, 208, 133, 0.35);
  color: var(--accent-2);
  padding: 6px 10px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.avatar {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: #1b2235;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--accent-2);
  border: 1px solid var(--border);
}

.rating {
  display: flex;
  gap: 8px;
}

.rate-btn {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-2);
  color: var(--text);
  display: grid;
  place-items: center;
  font-size: 18px;
  cursor: pointer;
  transition: border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
}

.rate-btn.selected {
  border-color: var(--accent);
  box-shadow: 0 10px 30px rgba(88, 197, 103, 0.24);
  transform: translateY(-1px);
}

#ratingUp.selected {
  border-color: var(--good);
  box-shadow: 0 10px 30px rgba(88, 197, 103, 0.24);
}

#ratingDown.selected {
  border-color: var(--danger);
  box-shadow: 0 10px 30px rgba(239, 68, 68, 0.24);
  color: var(--danger);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  display: grid;
  gap: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.card-body {
  display: grid;
  gap: 12px;
}

.muted {
  color: var(--muted);
}

.select-block {
  display: grid;
  gap: 6px;
  grid-area: select;
  width: 100%;
}

.select-block label {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pill-stack {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.progress-short {
  grid-area: progress;
  justify-self: end;
}

.user-area {
  grid-area: account;
  justify-self: end;
  display: flex;
  align-items: center;
}

.user-dropdown {
  position: relative;
}

.avatar-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px 10px;
  cursor: pointer;
  color: var(--text);
}

.user-caret {
  color: var(--muted);
  font-size: 14px;
}

.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 6px;
  display: none;
  min-width: 160px;
  z-index: 6;
}

.user-dropdown.open .user-menu {
  display: grid;
  gap: 6px;
}

.menu-item {
  width: 100%;
  text-align: left;
  background: var(--card-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
}

.menu-item:hover {
  border-color: var(--accent);
  box-shadow: 0 10px 25px rgba(88, 197, 103, 0.2);
}

@media (max-width: 880px) {
  .topbar {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand account"
      "select progress";
    align-items: center;
    gap: 8px 12px;
    padding: 10px 12px;
  }
  .select-wrap {
    min-width: 0;
    width: 100%;
    padding: 6px 10px;
  }
  select {
    font-size: 13px;
  }
  .logo {
    width: 32px;
    height: 32px;
    border-radius: 10px;
  }
  .pill {
    padding: 6px 9px;
    font-size: 12px;
  }
  #progressShort {
    font-size: 12px;
  }
  .btn {
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 14px;
  }
  .rate-btn {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
  .controls {
    justify-content: flex-start;
  }
}

@media (max-width: 520px) {
  .topbar {
    grid-template-columns: 1fr;
    grid-template-areas:
      "brand"
      "account"
      "select"
      "progress";
  }
  .user-area,
  .progress-short {
    justify-self: start;
  }
}