:root {
  --bg: #0b0e14;
  --bg-elev: #131824;
  --bg-card: #171d2b;
  --border: #262e40;
  --text: #e8ecf3;
  --text-muted: #8b94a7;
  --accent: #6e5bff;
  --accent-hover: #8a7bff;
  --accent-soft: rgba(110, 91, 255, 0.15);
  --green: #34d399;
  --amber: #fbbf24;
  --red: #f87171;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

.hidden { display: none !important; }

/* ---------- Pantallas ---------- */
.screen { display: none; min-height: 100vh; }
.screen.active { display: block; }

/* ---------- Login ---------- */
#login-screen {
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(110, 91, 255, 0.18), transparent),
    var(--bg);
}
#login-screen.active { display: flex; }

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 380px;
  box-shadow: var(--shadow);
}

.logo {
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo.small { font-size: 16px; }
.logo-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #c084fc);
  box-shadow: 0 0 12px var(--accent);
  flex-shrink: 0;
}
.login-sub { color: var(--text-muted); margin-top: 6px; margin-bottom: 28px; }

/* ---------- Layout ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-actions { display: flex; align-items: center; gap: 14px; }

@media (max-width: 640px) {
  .topbar {
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 16px;
  }
  .topbar .logo.small { width: 100%; justify-content: center; }
  .topbar-actions {
    width: 100%;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }
  .topbar-actions .btn { padding: 7px 12px; font-size: 13px; }
  .topbar-actions .badge { font-size: 11px; padding: 4px 10px; }
}

.badge {
  background: var(--accent-soft);
  color: var(--accent-hover);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.layout {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: 24px;
  padding: 28px;
  max-width: 1400px;
  margin: 0 auto;
  align-items: start;
}
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.panel h2 {
  margin: 0 0 20px;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--text);
  text-transform: uppercase;
  font-weight: 600;
}

/* ---------- Formulario ---------- */
.field { margin-bottom: 18px; }
.field label {
  display: block;
  margin-bottom: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.hint { color: var(--text-muted); font-size: 12px; font-weight: 400; }

input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Segmented control (modalidad) */
.segmented {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.segmented button {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}
.segmented button.active {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-align: center;
  overflow: hidden;
}
.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.dz-icon { font-size: 28px; display: block; }
.dropzone p { color: var(--text-muted); margin: 8px 0 0; font-size: 13px; }
.dropzone-preview { position: relative; width: 100%; }
.dropzone-preview img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  border-radius: 6px;
  background: #000;
}

/* Grid de parámetros */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* Advanced details */
.advanced {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 18px;
}
.advanced summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-muted);
  user-select: none;
}
.advanced summary:hover { color: var(--text); }
.advanced .field { margin-top: 16px; }

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  margin: 8px 0;
}

/* Switch */
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { display: none; }
.slider {
  position: absolute; inset: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: 0.2s;
}
.slider::before {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  left: 3px; top: 2px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: 0.2s;
}
.switch input:checked + .slider { background: var(--accent); border-color: var(--accent); }
.switch input:checked + .slider::before { transform: translateX(20px); background: #fff; }

/* Cost box */
.cost-box {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 18px;
}
.cost-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  margin-bottom: 6px;
}
.cost-row .muted { color: var(--text-muted); }
.cost-row.muted { color: var(--text-muted); }
#cost-usd { font-weight: 700; font-size: 18px; color: var(--accent-hover); }
.cost-box .hint input {
  width: 70px;
  display: inline-block;
  padding: 3px 6px;
  margin-left: 4px;
  font-size: 12px;
}

/* Botones */
.btn {
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: 0.15s;
  font-family: inherit;
}
.btn:hover { border-color: var(--accent); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn.primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.ghost { background: transparent; }
.btn.grey { color: var(--text-muted); }
.btn.big { width: 100%; padding: 14px; font-size: 15px; }
.btn.small { padding: 6px 12px; font-size: 12px; margin-top: 8px; }

.error-text { color: var(--red); font-size: 13px; min-height: 18px; margin: 10px 0 0; }

/* ---------- Monitor ---------- */
.monitor {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 24px;
  min-height: 200px;
}
.monitor-empty, .gallery-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 40px 10px;
  font-size: 14px;
}

.status-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  margin-bottom: 12px;
}
.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.status-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 10px;
}
.status-badge.pending { background: rgba(251, 191, 36, 0.15); color: var(--amber); }
.status-badge.processing { background: rgba(110, 91, 255, 0.15); color: var(--accent-hover); }
.status-badge.completed { background: rgba(52, 211, 153, 0.15); color: var(--green); }
.status-badge.failed { background: rgba(248, 113, 113, 0.15); color: var(--red); }

.player {
  width: 100%;
  max-height: 420px;
  border-radius: 8px;
  background: #000;
  margin-top: 10px;
}
.monitor-actions { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }

/* ---------- Galería ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}
.gallery-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-card);
  transition: border-color 0.15s, transform 0.15s;
  position: relative;
}
.gallery-item:hover { border-color: var(--accent); transform: translateY(-2px); }
.gallery-item video {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: #000;
  display: block;
}
.gallery-item .gmeta {
  padding: 8px 10px;
  font-size: 11px;
  color: var(--text-muted);
}
.gallery-item .gmodel { font-weight: 700; color: var(--text); }
.gallery-item .gstatus {
  position: absolute; top: 6px; right: 6px;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0,0,0,0.6);
  font-weight: 700;
}
.gstatus.completed { color: var(--green); }
.gstatus.processing { color: var(--accent-hover); }
.gstatus.pending { color: var(--amber); }
.gstatus.failed { color: var(--red); }

/* ---------- Multi-usuario: saldo, depósitos, admin ---------- */
.badge.balance {
  background: rgba(52, 211, 153, 0.15);
  color: var(--green);
}
.small-btn { padding: 8px 14px; }
.center { text-align: center; }

#telegram-widget { margin: 16px 0; }

.cost-box .credits { font-weight: 700; }
#cost-credits { font-weight: 700; color: var(--amber); }

/* Admin nav */
.admin-nav {
  display: flex;
  gap: 10px;
  padding: 12px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
}
.stat-val { font-size: 20px; font-weight: 700; color: var(--accent-hover); }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.users-list { display: flex; flex-direction: column; gap: 10px; }
.user-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  gap: 12px;
  flex-wrap: wrap;
}
.user-info { flex: 1; min-width: 180px; }
.user-adjust { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.adj-input {
  width: 110px;
  padding: 6px 8px;
  font-size: 12px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
}

/* Modal de depósito */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal-box {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  width: 440px;
  max-width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-box h2 { margin: 0 0 20px; font-size: 16px; }
.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  padding: 4px 10px;
}
.deposit-qr-wrap {
  text-align: center;
  margin: 16px 0;
}
.deposit-qr-wrap img { width: 220px; height: 220px; border-radius: 10px; }
.deposit-status { color: var(--amber); font-size: 13px; font-weight: 600; }

/* Acceso administrador (sin Telegram) */
.admin-login {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 16px 0;
  background: var(--bg-elev);
}
.admin-login summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-muted);
  user-select: none;
}
.admin-login summary:hover { color: var(--text); }
.admin-login .field { margin-top: 14px; }

/* Aviso de mantenimiento */
.maintenance-bar {
  background: rgba(251, 191, 36, 0.15);
  color: var(--amber);
  border-bottom: 1px solid var(--amber);
  padding: 10px 28px;
  font-size: 13px;
  font-weight: 600;
}

/* Panel de configuración admin */
.settings-form {
  display: grid;
  gap: 14px;
}
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  flex-wrap: wrap;
}
.settings-row label { flex: 1; min-width: 220px; font-size: 13px; font-weight: 600; }
.settings-row .hint { display: block; }
.settings-row input,
.settings-row select {
  width: 160px;
  flex-shrink: 0;
}
#settings-status.ok { color: var(--green); }
#settings-status.error { color: var(--red); }