/* ==========================================================================
   TERRA EARTH GAIA - DESIGN SYSTEM & ESTÉTICA TRANSCENDENTAL
   Estilo Zen-Cosmic, Glassmorphism, Foco e Controles Etéreos
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Outfit:wght@300;400;500;600&display=swap');

:root {
  --font-serif: 'Cinzel', serif, Georgia;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --bg-cosmic: #030308;
  --color-gold: #e2c07a;
  --color-cyan: #5ce1e6;
  --color-violet: #a855f7;
  --color-text: #f0f4f8;
  --color-text-muted: rgba(240, 244, 248, 0.65);
  
  --glass-bg: rgba(12, 16, 28, 0.45);
  --glass-bg-hover: rgba(18, 24, 42, 0.75);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-focus: rgba(92, 225, 230, 0.5);
  --glass-blur: blur(16px);
  
  --glow-cyan: 0 0 25px rgba(92, 225, 230, 0.35);
  --glow-gold: 0 0 25px rgba(226, 192, 122, 0.35);
  --glow-halo: 0 0 60px rgba(92, 225, 230, 0.25);
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-cosmic);
  color: var(--color-text);
  font-family: var(--font-sans);
  user-select: none;
  -webkit-user-select: none;
}

/* ==========================================================================
   BACKGROUND VIBRACIONAL & FREQUÊNCIAS CURATIVAS
   ========================================================================== */
.universe-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.healing-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-image: url('../img/earthrainbowbridge.jpg');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  transition: opacity 1.5s ease, transform 12s ease-in-out;
  opacity: 0.82;
  filter: brightness(0.95) contrast(1.08) saturate(1.15);
  will-change: transform, opacity;
  animation: subtleBreathing 16s ease-in-out infinite alternate;
}

@keyframes subtleBreathing {
  0% {
    transform: scale(1.0);
    filter: brightness(0.9) contrast(1.05) saturate(1.1);
  }
  50% {
    transform: scale(1.035);
    filter: brightness(1.05) contrast(1.12) saturate(1.25);
  }
  100% {
    transform: scale(1.0);
    filter: brightness(0.9) contrast(1.05) saturate(1.1);
  }
}

/* Overlay sutil para integração do 3D */
.vibration-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(3, 3, 12, 0.1) 0%, rgba(3, 3, 8, 0.6) 80%, rgba(2, 2, 6, 0.88) 100%);
  pointer-events: none;
  z-index: 2;
}

/* Canvas Three.js */
#webgl-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  cursor: grab;
}

#webgl-canvas:active {
  cursor: grabbing;
}

/* ==========================================================================
   HEADER DISCRETO COM LOGO & STATUS TRANSCENDENTAL
   ========================================================================== */
.app-header {
  position: fixed;
  top: 18px;
  left: 24px;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 14px;
  pointer-events: none;
  transition: var(--transition-smooth);
}

.brand-badge {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 40px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.brand-badge:hover,
.brand-badge:focus-visible {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-focus);
  box-shadow: var(--glow-cyan);
  transform: translateY(-1px);
}

.brand-symbol {
  color: var(--color-gold);
  font-size: 16px;
  filter: drop-shadow(0 0 8px rgba(226, 192, 122, 0.6));
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #ffffff;
  font-weight: 600;
}

.freq-tag {
  font-size: 11px;
  color: var(--color-cyan);
  background: rgba(92, 225, 230, 0.12);
  padding: 2px 7px;
  border-radius: 12px;
  border: 1px solid rgba(92, 225, 230, 0.25);
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   GUIA DE RESPIRAÇÃO CONSCIENTE (MEDITAÇÃO / COERÊNCIA CARDÍACA)
   ========================================================================== */
.breathing-guide {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.breathing-guide.active {
  opacity: 1;
}

.breath-circle {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1.5px solid rgba(92, 225, 230, 0.35);
  background: radial-gradient(circle, rgba(92, 225, 230, 0.08) 0%, rgba(168, 85, 247, 0.04) 70%, transparent 100%);
  box-shadow: 0 0 50px rgba(92, 225, 230, 0.15);
  transition: transform 4s cubic-bezier(0.4, 0, 0.2, 1), border-color 1s ease, box-shadow 1s ease;
  will-change: transform;
}

.breath-circle.inhale {
  transform: scale(1.45);
  border-color: rgba(92, 225, 230, 0.7);
  box-shadow: 0 0 70px rgba(92, 225, 230, 0.35);
}

.breath-circle.hold {
  transform: scale(1.45);
  border-color: rgba(226, 192, 122, 0.7);
  box-shadow: 0 0 70px rgba(226, 192, 122, 0.35);
}

.breath-circle.exhale {
  transform: scale(0.95);
  border-color: rgba(168, 85, 247, 0.6);
  box-shadow: 0 0 40px rgba(168, 85, 247, 0.25);
}

.breath-circle.rest {
  transform: scale(0.95);
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
}

.breath-caption {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #ffffff;
  text-shadow: 0 0 16px rgba(0, 0, 0, 0.9);
  pointer-events: none;
  transition: opacity 0.4s ease;
}

/* ==========================================================================
   VISUALIZADOR DE ONDAS HARMÔNICAS 432HZ
   ========================================================================== */
.audio-visualizer-bar {
  position: fixed;
  bottom: 84px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 3px;
  height: 24px;
  z-index: 15;
  pointer-events: none;
  opacity: 0.6;
  transition: var(--transition-smooth);
}

.vis-stick {
  width: 2.5px;
  background: linear-gradient(to top, var(--color-cyan), var(--color-violet), var(--color-gold));
  border-radius: 2px;
  height: 3px;
  transition: height 0.08s ease;
}

/* ==========================================================================
   HUD & BARRA DE AÇÃO DISCRETA (ZEN MINIMALIST)
   Inativo: Discreto e translúcido
   Foco/Hover: Destaque aprimorado, vibrante e nítido
   ========================================================================== */
.hud-wrapper {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 25;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 48px;
  opacity: 0.28; /* Estado padrão ultra-discreto */
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              background 0.4s ease,
              border-color 0.4s ease,
              box-shadow 0.4s ease,
              transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

/* Quando o usuário passa o mouse, toca ou foca em qualquer controle */
.hud-wrapper:hover,
.hud-wrapper:focus-within,
.hud-wrapper.awake {
  opacity: 1;
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-focus);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6), var(--glow-cyan);
  transform: translateX(-50%) translateY(-2px);
}

/* Botões do HUD */
.hud-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-text-muted);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: pointer;
  position: relative;
  transition: var(--transition-smooth);
}

.hud-btn:hover,
.hud-btn:focus-visible {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(92, 225, 230, 0.4);
  box-shadow: 0 0 15px rgba(92, 225, 230, 0.3);
  transform: scale(1.08);
  outline: none;
}

.hud-btn.active {
  color: var(--color-cyan);
  background: rgba(92, 225, 230, 0.15);
  border-color: var(--color-cyan);
  box-shadow: 0 0 15px rgba(92, 225, 230, 0.4);
}

/* Botão principal de Play/Pause com destaque dourado */
.hud-btn-main {
  width: 48px;
  height: 48px;
  background: rgba(226, 192, 122, 0.18);
  border: 1px solid rgba(226, 192, 122, 0.5);
  color: var(--color-gold);
  font-size: 18px;
  box-shadow: 0 0 20px rgba(226, 192, 122, 0.25);
}

.hud-btn-main:hover,
.hud-btn-main:focus-visible {
  background: rgba(226, 192, 122, 0.35);
  border-color: var(--color-gold);
  box-shadow: 0 0 25px rgba(226, 192, 122, 0.6);
  color: #ffffff;
}

/* Tooltip etéreo */
.hud-btn::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 54px;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 5px 11px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.5px;
  white-space: nowrap;
  background: rgba(8, 12, 22, 0.9);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
}

.hud-btn:hover::after,
.hud-btn:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   CONTROLES COMPLEMENTARES (VOLUME, TIMER, ETC)
   ========================================================================== */
.volume-control-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 0;
  overflow: hidden;
  transition: width 0.35s ease, margin 0.35s ease, opacity 0.35s ease;
  opacity: 0;
}

.volume-control-wrapper.open {
  width: 80px;
  opacity: 1;
  margin-right: 4px;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 8px var(--color-cyan);
  cursor: pointer;
}

.volume-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 8px var(--color-cyan);
  border: none;
  cursor: pointer;
}

/* ==========================================================================
   MODAIS E DRAWERS TRANSCENDENTAIS (BÊNÇÃO DE GAIA & INFOS)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(2, 3, 8, 0.78);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
  padding: 20px;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  max-width: 540px;
  width: 100%;
  background: linear-gradient(135deg, rgba(16, 22, 40, 0.85) 0%, rgba(8, 12, 24, 0.95) 100%);
  border: 1px solid rgba(226, 192, 122, 0.3);
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), var(--glow-gold);
  color: var(--color-text);
  transform: translateY(20px) scale(0.96);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.modal-overlay.open .modal-card {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-size: 20px;
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.modal-header {
  text-align: center;
  margin-bottom: 22px;
}

.modal-icon {
  font-size: 32px;
  color: var(--color-gold);
  margin-bottom: 8px;
  display: inline-block;
  filter: drop-shadow(0 0 10px rgba(226, 192, 122, 0.7));
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 6px;
}

.modal-subtitle {
  font-size: 13px;
  color: var(--color-cyan);
  letter-spacing: 1px;
}

.prayer-body {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(240, 244, 248, 0.88);
  font-style: italic;
  text-align: center;
  margin-bottom: 24px;
}

.prayer-body p {
  margin-bottom: 12px;
}

.sacred-numbers {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--color-gold);
  margin-top: 16px;
  font-style: normal;
}

.modal-footer {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 18px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.modal-footer a {
  color: var(--color-gold);
  text-decoration: none;
  transition: var(--transition-fast);
}

.modal-footer a:hover {
  color: #ffffff;
  text-shadow: 0 0 8px var(--color-gold);
}

/* ==========================================================================
   INDICADOR NOOSFERA & PULSO COLETIVO (HEADER)
   ========================================================================== */
.noosphere-pulse-badge {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(92, 225, 230, 0.25);
  border-radius: 40px;
  font-size: 11px;
  letter-spacing: 0.8px;
  color: rgba(255, 255, 255, 0.85);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.noosphere-pulse-badge:hover {
  background: var(--glass-bg-hover);
  border-color: var(--color-cyan);
  box-shadow: 0 0 20px rgba(92, 225, 230, 0.4);
  transform: translateY(-1px);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 10px var(--color-cyan);
  animation: pulseDotAnim 2s ease-in-out infinite;
}

@keyframes pulseDotAnim {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.35); opacity: 1; box-shadow: 0 0 16px var(--color-cyan); }
  100% { transform: scale(0.9); opacity: 0.7; }
}

/* ==========================================================================
   SINCRONÁRIO DA PAZ & KIN MAIA (MODAL)
   ========================================================================== */
.kin-today-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(226, 192, 122, 0.3);
  border-radius: 16px;
  padding: 18px 20px;
  margin-bottom: 20px;
  text-align: center;
}

.kin-label {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.kin-badge-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 10px;
}

.kin-number {
  background: rgba(226, 192, 122, 0.2);
  color: var(--color-gold);
  border: 1px solid rgba(226, 192, 122, 0.5);
  padding: 3px 10px;
  border-radius: 20px;
  font-family: var(--font-serif);
  font-size: 12px;
  font-weight: 700;
}

.kin-name {
  font-family: var(--font-serif);
  font-size: 16px;
  letter-spacing: 1.5px;
  color: #ffffff;
  font-weight: 600;
}

.kin-affirmation {
  font-size: 12px;
  line-height: 1.6;
  color: rgba(240, 244, 248, 0.8);
  font-style: italic;
}

.kin-calc-section {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 18px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 12px;
  text-align: center;
}

.kin-form-row {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  margin-bottom: 14px;
}

.kin-date-input {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  padding: 8px 14px;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
}

.kin-date-input:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 10px rgba(92, 225, 230, 0.4);
}

.kin-action-btn {
  background: linear-gradient(135deg, var(--color-cyan) 0%, #38bdf8 100%);
  color: #030308;
  border: none;
  padding: 9px 18px;
  border-radius: 10px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 1px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
}

.kin-action-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 15px rgba(92, 225, 230, 0.6);
}

.user-kin-result {
  background: rgba(92, 225, 230, 0.08);
  border: 1px solid rgba(92, 225, 230, 0.35);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
  animation: fadeIn 0.4s ease;
}

.user-kin-result.hidden {
  display: none;
}

.user-kin-title {
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--color-gold);
  font-weight: 600;
  margin-bottom: 4px;
}

.user-kin-desc {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.75);
}

/* ==========================================================================
   SOLFEGGIO & GERADOR DE FREQUÊNCIAS (MODAL)
   ========================================================================== */
.solfeggio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.solfeggio-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 14px 12px;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
}

.solfeggio-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(92, 225, 230, 0.4);
  transform: translateY(-2px);
}

.solfeggio-card.active {
  background: rgba(92, 225, 230, 0.12);
  border-color: var(--color-cyan);
  box-shadow: 0 0 15px rgba(92, 225, 230, 0.3);
}

.freq-hz {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: 2px;
}

.freq-name {
  font-size: 12px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 4px;
}

.freq-desc {
  font-size: 10.5px;
  line-height: 1.4;
  color: var(--color-text-muted);
}

.schumann-monitor-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(92, 225, 230, 0.2);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 12px;
}

.monitor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
}

.status-live {
  color: var(--color-cyan);
  font-weight: 600;
  text-shadow: 0 0 8px var(--color-cyan);
}

.schumann-meter {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 6px;
}

.meter-fill {
  width: 78%;
  height: 100%;
  background: linear-gradient(to right, var(--color-cyan), var(--color-gold), var(--color-violet));
  animation: meterPulse 4s ease-in-out infinite alternate;
}

@keyframes meterPulse {
  0% { width: 72%; opacity: 0.8; }
  100% { width: 85%; opacity: 1; filter: brightness(1.2); }
}

.schumann-harmonics {
  font-size: 10px;
  color: var(--color-text-muted);
  text-align: center;
}

/* ==========================================================================
   GAUGES DE CALIBRAÇÃO VISUAL & LUZ (MODAL)
   ========================================================================== */
.modal-card-wide {
  max-width: 660px;
  width: 94%;
}

/* Abas de Navegação do Modal */
.modal-tabs-nav {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  padding-bottom: 12px;
}

.modal-tab-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--color-text-muted);
  border-radius: 22px;
  padding: 8px 18px;
  font-size: 11.5px;
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
}

.modal-tab-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border-color: rgba(92, 225, 230, 0.4);
}

.modal-tab-btn.active {
  background: rgba(92, 225, 230, 0.16);
  border-color: var(--color-cyan);
  color: #ffffff;
  box-shadow: 0 0 14px rgba(92, 225, 230, 0.3);
}

.modal-tab-content {
  display: none;
  animation: fadeInTab 0.3s ease;
}

.modal-tab-content.active {
  display: block;
}

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

.gauges-dashboard {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.gauges-dashboard-3 {
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.gauge-card {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 14px 14px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.gauge-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(92, 225, 230, 0.4), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gauge-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(92, 225, 230, 0.3);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.gauge-card:hover::before {
  opacity: 1;
}

.gauge-card-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.gauge-card-icon {
  font-size: 13px;
  color: var(--color-gold);
}

.gauge-card-title {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: #ffffff;
  text-transform: uppercase;
}

.gauge-meter-wrapper {
  position: relative;
  width: 100%;
  max-width: 150px;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 6px;
}

.gauge-svg {
  width: 100%;
  height: 72px;
  overflow: visible;
}

.gauge-track {
  stroke: rgba(255, 255, 255, 0.12);
}

.gauge-progress {
  stroke-dasharray: 141.4;
  stroke-dashoffset: 70.7;
  transition: stroke-dashoffset 0.15s ease-out;
}

.gauge-temp-progress {
  stroke: #e2c07a;
  filter: drop-shadow(0 0 6px rgba(226, 192, 122, 0.6));
}

.gauge-sat-progress {
  stroke: #5ce1e6;
  filter: drop-shadow(0 0 6px rgba(92, 225, 230, 0.6));
}

.gauge-bri-progress {
  stroke: #ffd13b;
  filter: drop-shadow(0 0 6px rgba(255, 209, 59, 0.6));
}

.gauge-con-progress {
  stroke: #a855f7;
  filter: drop-shadow(0 0 6px rgba(168, 85, 247, 0.6));
}

.gauge-octa-progress {
  stroke: #5ce1e6;
  filter: drop-shadow(0 0 6px rgba(92, 225, 230, 0.6));
}

.gauge-scale-progress {
  stroke: #ffd13b;
  filter: drop-shadow(0 0 6px rgba(255, 209, 59, 0.6));
}

.gauge-speed-progress {
  stroke: #a855f7;
  filter: drop-shadow(0 0 6px rgba(168, 85, 247, 0.6));
}

.gauge-needle {
  stroke: #ffffff;
  transform-origin: 60px 65px;
  transform: rotate(0deg);
  transition: transform 0.12s cubic-bezier(0.1, 0.9, 0.2, 1);
  filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.8));
}

.gauge-pivot {
  fill: #ffffff;
  filter: drop-shadow(0 0 5px var(--color-cyan));
}

.gauge-digital-val {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 1px;
  margin-top: -8px;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.4);
}

.gauge-state-badge {
  font-size: 9.5px;
  color: var(--color-cyan);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-top: 1px;
  font-weight: 500;
}

.gauge-slider-container {
  width: 100%;
  margin-top: 6px;
}

.gauge-range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: var(--color-text-muted);
  margin-bottom: 5px;
}

.gauge-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  outline: none;
  cursor: pointer;
  transition: background 0.2s ease;
}

.gauge-slider:hover {
  background: rgba(255, 255, 255, 0.2);
}

.gauge-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--color-cyan);
  box-shadow: 0 0 10px var(--color-cyan);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.gauge-slider::-webkit-slider-thumb:hover {
  transform: scale(1.25);
  box-shadow: 0 0 14px var(--color-cyan);
}

.gauge-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--color-cyan);
  box-shadow: 0 0 10px var(--color-cyan);
  cursor: pointer;
}

/* Gradientes nos trilhos */
.gauge-slider-temp {
  background: linear-gradient(to right, #38bdf8 0%, rgba(255, 255, 255, 0.2) 50%, #f59e0b 100%);
}

.gauge-slider-sat {
  background: linear-gradient(to right, #64748b 0%, rgba(255, 255, 255, 0.2) 50%, #38bdf8 75%, #ec4899 100%);
}

.gauge-slider-bri {
  background: linear-gradient(to right, #1e293b 0%, rgba(255, 255, 255, 0.2) 50%, #fde047 100%);
}

.gauge-slider-con {
  background: linear-gradient(to right, #475569 0%, rgba(255, 255, 255, 0.2) 50%, #c084fc 100%);
}

.gauge-slider-octa {
  background: linear-gradient(to right, #0284c7 0%, #38bdf8 50%, #5ce1e6 100%);
}

.gauge-slider-scale {
  background: linear-gradient(to right, #b45309 0%, #f59e0b 50%, #fde047 100%);
}

.gauge-slider-speed {
  background: linear-gradient(to right, #475569 0%, #9333ea 50%, #ec4899 100%);
}

/* Sincronização Harmônica */
.harmonic-sync-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(226, 192, 122, 0.4);
  border-radius: 12px;
  padding: 10px 14px;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: 14px;
}

.harmonic-sync-btn:hover {
  background: rgba(226, 192, 122, 0.1);
  color: #ffffff;
}

.harmonic-sync-btn.active {
  background: rgba(226, 192, 122, 0.18);
  border-style: solid;
  border-color: var(--color-gold);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(226, 192, 122, 0.35);
}

.harmonic-sync-btn.active i {
  color: var(--color-gold);
}

.dynamics-preset-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--color-text);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition-fast);
}

.dynamics-preset-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-cyan);
  color: #ffffff;
}

.dynamics-preset-btn.active {
  background: rgba(92, 225, 230, 0.18);
  border-color: var(--color-cyan);
  color: #ffffff;
  box-shadow: 0 0 10px rgba(92, 225, 230, 0.3);
}

/* Presets */
.gauge-presets-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 10px 14px;
  margin-bottom: 14px;
}

.preset-label {
  font-size: 10.5px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.preset-buttons-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.gauge-preset-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--color-text);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition-fast);
}

.gauge-preset-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-cyan);
  color: #ffffff;
}

.gauge-preset-btn.active {
  background: rgba(92, 225, 230, 0.18);
  border-color: var(--color-cyan);
  color: #ffffff;
  box-shadow: 0 0 10px rgba(92, 225, 230, 0.3);
}

/* Footer & Reset */
.gauge-modal-footer {
  display: flex;
  justify-content: center;
  padding-top: 14px;
}

.gauge-reset-action-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--color-text);
  padding: 8px 18px;
  border-radius: 24px;
  font-size: 11.5px;
  font-family: var(--font-sans);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.gauge-reset-action-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-gold);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(226, 192, 122, 0.3);
}

.gauge-reset-action-btn i {
  color: var(--color-gold);
}

@media (max-width: 640px) {
  .gauges-dashboard,
  .gauges-dashboard-3 {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .gauge-card {
    padding: 12px 14px;
  }
  
  .gauge-svg {
    height: 65px;
  }
}

/* ==========================================================================
   TELA INICIAL DE CONEXÃO & ENTRADA TRANSCENDENTAL (SPLASH)
   ========================================================================== */
.welcome-splash {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: radial-gradient(circle at center, rgba(8, 12, 28, 0.88) 0%, rgba(2, 3, 8, 0.98) 100%);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  transition: opacity 1s ease, visibility 1s ease;
}

.welcome-splash.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-symbol {
  font-size: 42px;
  color: var(--color-gold);
  margin-bottom: 14px;
  filter: drop-shadow(0 0 20px rgba(226, 192, 122, 0.8));
  animation: pulseSymbol 3s ease-in-out infinite alternate;
}

@keyframes pulseSymbol {
  from { transform: scale(1.0); filter: drop-shadow(0 0 15px rgba(226, 192, 122, 0.6)); }
  to { transform: scale(1.08); filter: drop-shadow(0 0 30px rgba(226, 192, 122, 0.95)); }
}

.splash-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4.5vw, 40px);
  letter-spacing: 5px;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 10px;
}

.splash-desc {
  max-width: 480px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 30px;
}

.enter-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 34px;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #030308;
  background: linear-gradient(135deg, var(--color-gold) 0%, #fff1c4 100%);
  border: none;
  border-radius: 40px;
  cursor: pointer;
  font-weight: 700;
  box-shadow: 0 0 35px rgba(226, 192, 122, 0.5);
  transition: var(--transition-smooth);
}

.enter-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 0 50px rgba(226, 192, 122, 0.8);
}

.enter-btn i {
  font-size: 14px;
}

/* ==========================================================================
   NOTIFICAÇÃO FLUTUANTE DISCRETA (TOAST)
   ========================================================================== */
.zen-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(12, 16, 28, 0.85);
  border: 1px solid rgba(92, 225, 230, 0.4);
  color: #ffffff;
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 12px;
  letter-spacing: 1px;
  backdrop-filter: blur(12px);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), var(--glow-cyan);
}

.zen-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   TIMER DE MEDITAÇÃO BADGE
   ========================================================================== */
.meditation-timer-badge {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 20;
  padding: 6px 14px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  font-size: 12px;
  font-family: var(--font-serif);
  letter-spacing: 1.5px;
  color: var(--color-cyan);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.meditation-timer-badge.active {
  opacity: 1;
}

/* ==========================================================================
   RESPONSIVIDADE MOBILE
   ========================================================================== */
@media (max-width: 640px) {
  .app-header {
    top: 12px;
    left: 14px;
  }
  
  .brand-title {
    font-size: 11px;
  }
  
  .freq-tag {
    font-size: 9px;
  }
  
  .hud-wrapper {
    bottom: 16px;
    padding: 6px 10px;
    gap: 6px;
    max-width: 94vw;
  }
  
  .hud-btn {
    width: 38px;
    height: 38px;
    font-size: 14px;
  }
  
  .hud-btn-main {
    width: 44px;
    height: 44px;
    font-size: 16px;
  }
  
  .hud-btn::after {
    display: none; /* Em mobile, sem hover tooltip */
  }
  
  .modal-card {
    padding: 24px 20px;
  }
  
  .breath-circle {
    width: 200px;
    height: 200px;
  }
}