/* ══════════════════════════════════════════════════════════════════════════ */
/* Supreme Player — Portal do Aparelho (Styles)                               */
/* Design System: Dark Glassmorphic Crimson, Plus Jakarta Sans, Red Glow       */
/* ══════════════════════════════════════════════════════════════════════════ */

:root {
  --bg: #070406;
  --bg-gradient: linear-gradient(180deg, rgba(7, 4, 6, 0.82) 0%, rgba(7, 4, 6, 0.95) 100%), url("assets/bg.png");
  --card-bg: rgba(22, 11, 16, 0.76);
  --card-hover: rgba(36, 16, 24, 0.88);
  --input-bg: rgba(12, 6, 9, 0.85);
  
  --primary: #DC2626;
  --primary-hover: #B91C1C;
  --primary-glow: rgba(220, 38, 38, 0.4);
  
  --accent: #EF4444;
  --accent-glow: rgba(239, 68, 68, 0.3);
  
  --text: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(239, 68, 68, 0.5);
  --border-strong: rgba(255, 255, 255, 0.16);
  
  --ok: #10B981;
  --ok-glow: rgba(16, 185, 129, 0.25);
  --err: #EF4444;
  --err-glow: rgba(239, 68, 68, 0.25);
  --warn: #F59E0B;
  
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

html, body {
  min-height: 100%;
}

body {
  background-color: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text);
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* ── Navbar Superior ── */
.portal-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 11, 24, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
}

.portal-nav-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px var(--primary-glow);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: #FFFFFF;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-item {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-item:hover {
  color: #fff;
}

.nav-item.security-pill {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--ok);
}

.security-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* ── Layout Principal ── */
.portal-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px 20px 60px;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}

/* ── Card Container ── */
.glass-card {
  width: 100%;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 36px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 40px rgba(220, 38, 38, 0.12);
  transition: transform var(--transition), border-color var(--transition);
}

.card-header {
  text-align: center;
  margin-bottom: 28px;
}

.header-icon-wrap {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.2), rgba(239, 68, 68, 0.2));
  border: 1px solid rgba(239, 68, 68, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.header-icon-wrap svg {
  width: 28px;
  height: 28px;
}

.card-title {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 8px;
}

.card-subtitle {
  font-size: 0.94rem;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto;
}

/* ── Seletor de Abas de Entrada (Gate Tabs) ── */
.gate-nav-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
  background: rgba(12, 6, 9, 0.7);
  padding: 6px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.gate-tab-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.gate-tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.gate-tab-btn.active {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.28) 0%, rgba(185, 28, 28, 0.36) 100%);
  border-color: rgba(239, 68, 68, 0.55);
  color: #fff;
  box-shadow: 0 4px 18px rgba(220, 38, 38, 0.25);
}

.gate-tab-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.96rem;
}

.gate-tab-badge {
  display: inline-block;
  font-size: 0.70rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 999px;
  margin-top: 4px;
  text-transform: uppercase;
}

.gate-tab-btn .gate-tab-badge.badge-quick {
  background: rgba(16, 185, 129, 0.2);
  color: #6EE7B7;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.gate-tab-btn .gate-tab-badge.badge-full {
  background: rgba(239, 68, 68, 0.2);
  color: #FCA5A5;
  border: 1px solid rgba(239, 68, 68, 0.35);
}

/* Success Card for Quick Upload */
.quick-success-card {
  text-align: center;
  padding: 26px 20px;
  border-radius: var(--radius);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  margin-top: 20px;
}
.quick-success-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.25);
  border: 2px solid #10B981;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #10B981;
}
.quick-success-title {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.quick-success-desc {
  color: #D1FAE5;
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 18px;
}
.quick-success-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── Formulários e Inputs ── */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.label-hint {
  font-size: 0.75rem;
  text-transform: none;
  font-weight: 500;
  color: var(--text-dim);
}

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-dim);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.input-icon svg {
  width: 18px;
  height: 18px;
}

.form-control {
  width: 100%;
  padding: 12px 16px 12px 44px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--input-bg);
  color: #fff;
  font-size: 0.98rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18);
  background: rgba(10, 18, 38, 0.9);
}

.form-control.mac-input {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 1.05rem;
}

.form-control.key-input {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-weight: 700;
  letter-spacing: 0.25em;
  font-size: 1.15rem;
}

textarea.form-control {
  min-height: 90px;
  padding: 12px 14px;
  resize: vertical;
}

.input-action-btn {
  position: absolute;
  right: 12px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

.input-action-btn:hover {
  color: #fff;
}

/* ── Botões ── */
.btn-primary {
  width: 100%;
  padding: 13px 20px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), #1E40AF);
  color: #fff;
  font-size: 0.98rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 18px var(--primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(37, 99, 235, 0.45);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-secondary {
  padding: 10px 18px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background var(--transition), border-color var(--transition);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-ghost {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}

.btn-ghost:hover {
  color: #fff;
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.04);
}

.btn-ghost.danger:hover {
  color: var(--err);
  border-color: rgba(239, 68, 68, 0.4);
  background: rgba(239, 68, 68, 0.08);
}

.btn-activate {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}

.btn-activate:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
}

/* ── Mensagens e Alertas ── */
.portal-alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
  animation: fadeIn 200ms ease;
}

.portal-alert.err {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #FCA5A5;
}

.portal-alert.ok {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6EE7B7;
}

.portal-alert.info {
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: #BAE6FD;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Seção Ajuda / TV Guide (Abas de TVs) ── */
.tv-guide-card {
  margin-top: 32px;
  border-top: 1px solid var(--border);
  padding-top: 28px;
}

.tv-guide-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.tv-guide-header h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.tv-guide-arrow {
  transition: transform var(--transition);
  color: var(--text-dim);
}

.tv-guide-arrow.open {
  transform: rotate(180deg);
}

.tv-guide-content {
  margin-top: 18px;
}

.tv-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  margin-bottom: 16px;
  padding-bottom: 4px;
}

.tv-tab-btn {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition);
}

.tv-tab-btn:hover {
  color: #fff;
  border-color: var(--border-strong);
}

.tv-tab-btn.active {
  background: rgba(37, 99, 235, 0.2);
  border-color: var(--accent);
  color: var(--accent);
}

.tv-tab-pane {
  background: rgba(7, 12, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.tv-tab-pane ol {
  padding-left: 20px;
}

.tv-tab-pane li {
  margin-bottom: 6px;
}

.tv-tab-pane li strong {
  color: #fff;
}

/* ── PAINEL DO APARELHO (Autenticado) ── */
.device-header {
  background: rgba(7, 12, 26, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.device-info-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.device-badge-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(56, 189, 248, 0.2));
  border: 1px solid rgba(56, 189, 248, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.device-meta-title {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.device-mac-text {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.05em;
}

.device-pills {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.status-badge.active {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--ok);
}

.status-badge.expired {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--warn);
}

.status-badge.empty {
  background: rgba(148, 163, 184, 0.15);
  border: 1px solid rgba(148, 163, 184, 0.25);
  color: var(--text-muted);
}

.status-badge.blocked {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--err);
}

/* ── Lista de Playlists ── */
.lists-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.playlist-card {
  background: rgba(7, 12, 26, 0.55);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.playlist-card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.playlist-card.active-list {
  border-color: rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.04);
}

.playlist-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.playlist-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.playlist-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.playlist-active-pill {
  font-size: 0.68rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: var(--ok);
  text-transform: uppercase;
}

.playlist-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.playlist-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.playlist-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.icon-btn:hover {
  color: #fff;
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.08);
}

.icon-btn.danger:hover {
  color: var(--err);
  border-color: rgba(239, 68, 68, 0.4);
  background: rgba(239, 68, 68, 0.1);
}

.icon-btn svg {
  width: 17px;
  height: 17px;
}

/* ── Estado Vazio (Nenhuma Lista) ── */
.empty-state {
  text-align: center;
  padding: 44px 20px;
  background: rgba(7, 12, 26, 0.4);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.empty-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  color: var(--text-dim);
}

.empty-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.empty-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  max-width: 360px;
  margin: 0 auto 18px;
}

/* ── Modal / Formulário de Adicionar / Editar Lista ── */
.editor-card {
  background: rgba(7, 12, 26, 0.8);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 18px;
  animation: fadeIn 200ms ease;
}

.mode-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 20px;
  background: rgba(0, 0, 0, 0.3);
  padding: 4px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.mode-btn {
  padding: 10px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
}

.mode-btn.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 10px var(--primary-glow);
}

.form-actions-row {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* ── Modal de Confirmação Moderno ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 150ms ease;
}

.modal-box {
  width: 100%;
  max-width: 440px;
  background: #0E162D;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  animation: scaleUp 180ms ease;
}

@keyframes scaleUp {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.modal-icon-danger {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--err);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
}

.modal-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.btn-danger {
  padding: 10px 18px;
  border-radius: var(--radius);
  background: var(--err);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: opacity var(--transition);
}

.btn-danger:hover {
  opacity: 0.9;
}

/* ── Footer ── */
.portal-footer {
  text-align: center;
  padding: 24px;
  font-size: 0.82rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* ── Responsividade ── */
@media (max-width: 640px) {
  .glass-card {
    padding: 24px 18px;
  }
  .card-title {
    font-size: 1.35rem;
  }
  .device-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .playlist-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .playlist-actions {
    width: 100%;
    justify-content: flex-end;
    border-top: 1px solid var(--border);
    padding-top: 12px;
  }
}