:root {
  --bg: #0f0f14;
  --bg-elevated: #1a1a22;
  --bg-card: #20202a;
  --border: #2e2e3a;
  --text: #f0f0f0;
  --text-dim: #9a9aa5;
  --accent: #c8a96e;
  --danger: #e05252;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ── Login ───────────────────────────────────── */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.logo {
  font-size: 22px;
  margin: 0 0 20px;
  text-align: center;
  letter-spacing: -0.3px;
}

#login-form, #register-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 15px;
}

input:focus { outline: 2px solid var(--accent); }

.btn-primary {
  background: var(--accent);
  color: #1a1a2e;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  margin-top: 4px;
}

.btn-secondary {
  width: 100%;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 12px;
  margin-top: 12px;
  cursor: pointer;
  font-size: 15px;
}

.error-text {
  color: var(--danger);
  font-size: 13px;
  margin-top: 10px;
}

#register-box {
  margin-top: 18px;
  color: var(--text-dim);
  font-size: 13px;
}
#register-box summary { cursor: pointer; }
#register-box form { margin-top: 10px; }

/* ── App shell ───────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 10px;
}

.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
}

.tabs a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  white-space: nowrap;
}

.tabs a.active {
  background: var(--bg-card);
  color: var(--text);
}

main {
  padding: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

/* ── Grid de carátulas ───────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border);
}

.card img {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  display: block;
  background: var(--bg-elevated);
}

.card-body { padding: 8px 10px; }

.card-title {
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-progress {
  font-size: 11px;
  color: var(--text-dim);
}

.progress-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin-top: 6px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--accent);
}

/* ── Estado tabs (librería) ─────────────────── */
.state-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  overflow-x: auto;
}
.state-tabs button {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 20px;
  cursor: pointer;
  white-space: nowrap;
  font-size: 13px;
}
.state-tabs button.active {
  background: var(--accent);
  color: #1a1a2e;
  border-color: var(--accent);
  font-weight: 600;
}

/* ── Buscador ────────────────────────────────── */
.search-input {
  width: 100%;
  padding: 14px 16px;
  font-size: 16px;
  margin-bottom: 20px;
}

/* ── Detalle de serie ────────────────────────── */
.detail-header {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.detail-header img {
  width: 180px;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.detail-info { flex: 1; min-width: 240px; }
.detail-info h2 { margin: 0 0 10px; }
.detail-info p { color: var(--text-dim); line-height: 1.5; }

.estado-select {
  padding: 8px 12px;
  margin-top: 10px;
}

.season {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.season-header {
  padding: 14px 16px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
}
.season-body { padding: 0 16px; }
.episode-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--border);
}
.episode-row img {
  width: 80px;
  border-radius: 6px;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--bg-elevated);
}
.episode-info { flex: 1; }
.episode-title { font-size: 14px; margin: 0 0 4px; }
.episode-date { font-size: 12px; color: var(--text-dim); }

.btn-season-complete {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}

/* ── Stats ───────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.stat-tile {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}
.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 999;
}