/* ==============================================================================
   Speak & Trade 2.0 • dp idiomas • Fluência que Conecta
   Design System & Estilização Executiva
   Paleta: Deep Space (#0B1429), Ice Sheet (#F3F5F8), Ciano (#0799B8), Rubi (#D91B26), Âmbar (#D97706)
   Ergonomia 40+ & Acessibilidade WCAG AA (>= 4.5:1)
   ============================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;700;800&display=swap');

:root {
  --color-deep-space: #0B1429;
  --color-deep-space-rgb: 11, 20, 41;
  --color-surface-dark: #121E38;
  --color-surface-card: #18284A;
  --color-surface-card-hover: #1E335C;
  --color-ice-sheet: #F3F5F8;
  --color-cyan-action: #0799B8;
  --color-cyan-glow: rgba(7, 153, 184, 0.35);
  --color-ruby-alert: #D91B26;
  --color-ruby-glow: rgba(217, 27, 38, 0.4);
  --color-amber-gold: #D97706;
  --color-amber-glow: rgba(217, 119, 6, 0.35);
  --color-text-main: #FFFFFF;
  --color-text-muted: #94A3B8;
  --color-text-dim: #64748B;
  --color-border-subtle: rgba(255, 255, 255, 0.08);
  --color-border-focus: #0799B8;
  
  --radius-card: 28px;
  --radius-pill: 9999px;
  --radius-btn: 16px;
  --min-touch-target: 48px;
  
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--color-deep-space);
  color: var(--color-text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Touch Targets Mandatórios 48px (Ergonomia 40+) */
button, .touch-target, select, input {
  min-height: var(--min-touch-target);
  font-family: inherit;
}

/* Tipografia Fonética Padrão Executivo */
.phonetic-text {
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
  line-height: 1.5;
  color: #38BDF8;
  font-weight: 600;
}

.phonetic-text b, .phonetic-text strong, .phonetic-tonic {
  color: #FACC15;
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: rgba(250, 204, 21, 0.5);
  text-underline-offset: 3px;
}

/* Cartões com cantos de 28px */
.card-executive {
  background: linear-gradient(180deg, rgba(24, 40, 74, 0.85) 0%, rgba(18, 30, 56, 0.95) 100%);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-executive:hover {
  border-color: rgba(7, 153, 184, 0.3);
  transform: translateY(-2px);
}

/* Botão Rubi "Meu Repertório" Sticky */
.btn-ruby-repertorio {
  background: linear-gradient(135deg, #EF4444 0%, #D91B26 100%);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 18px var(--color-ruby-glow);
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-ruby-repertorio:hover {
  background: linear-gradient(135deg, #DC2626 0%, #B91C1C 100%);
  box-shadow: 0 6px 24px rgba(217, 27, 38, 0.6);
  transform: translateY(-1px);
}

.btn-ruby-repertorio:active {
  transform: translateY(1px);
}

/* Botão de Ação Ciano */
.btn-cyan {
  background: linear-gradient(135deg, #0BB8DC 0%, #0799B8 100%);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-btn);
  font-weight: 700;
  box-shadow: 0 4px 16px var(--color-cyan-glow);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-cyan:hover {
  background: linear-gradient(135deg, #0799B8 0%, #067E97 100%);
  box-shadow: 0 6px 20px rgba(7, 153, 184, 0.5);
  transform: translateY(-1px);
}

/* Badge Metálico Deal-Ready */
.deal-ready-badge {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 50%, #B45309 100%);
  color: #0B1429;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 10px var(--color-amber-glow);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* Indicador de Gravação Ativa */
.recording-active-pulse {
  animation: pulse-red 1.2s infinite ease-in-out;
}

@keyframes pulse-red {
  0% {
    box-shadow: 0 0 0 0 rgba(217, 27, 38, 0.7);
  }
  70% {
    box-shadow: 0 0 0 16px rgba(217, 27, 38, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(217, 27, 38, 0);
  }
}

/* Barra de Navegação Inferior Mobile-First */
.mobile-bottom-nav {
  background: rgba(11, 20, 41, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--color-border-subtle);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #0B1429;
}
::-webkit-scrollbar-thumb {
  background: #1E335C;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #0799B8;
}

/* Animações de Transição de View */
.view-container {
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modal Overlay */
.modal-overlay {
  background: rgba(11, 20, 41, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* Estilos de Gauge */
.gauge-arc {
  transition: stroke-dashoffset 0.8s ease-in-out;
}