/* ==========================================================================
   CADERNO CLÁSSICO • IDENTIDADE VISUAL REAL E CLÁSSICA
   Método Lumen — Reforço Diário de 20 Minutos no Lar
   Identidade: Marfim / Off-White, Linho, Bordas Amadeiradas e Dourado Envelhecido
   Zero Emojis • Governança Ecossistema Volt
   ========================================================================== */

:root {
  /* Design Tokens Canônicos (Gravura 2D) • Ecossistema Volt */
  --color-ink-midnight: #0F1E36;
  --color-ink-deep: #070E1A;
  --color-gold-brass: #C5A059;
  --color-gold-light: #E2C98A;
  --color-parchment: #F9F6EE;
  --color-parchment-soft: #F4EFE6;
  --color-burgundy: #6B1D2F;
  --color-burgundy-deep: #48101E;

  --font-display: 'Cinzel', 'Times New Roman', Georgia, serif;
  --font-editorial: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;

  /* Paleta Canônica Marfim & Linho Suave */
  --color-parchment-base: #F9F6EE;
  --color-parchment-surface: #ffffff;
  --color-parchment-warm: #F4EFE6;
  --color-parchment-sheet: #FCFBF8;
  --color-parchment-border: #E7DECB;
  --color-parchment-muted: #ece5d6;

  /* Tipografia & Tinta Azul Marinho Profundo */
  --color-ink-deep: #070E1A;
  --color-ink-soft: #334155;
  --color-ink-muted: #64748b;
  --color-ink-light: #94a3b8;

  /* Dourado Envelhecido & Bronze Clássico */
  --color-gold-aged: #C5A059;
  --color-gold-burnished: #92400e;
  --color-gold-warm: #d97706;
  --color-gold-light: #fef3c7;
  --color-gold-badge: #fde68a;
  --color-gold-glow: rgba(180, 83, 9, 0.15);
  --color-gold-border: rgba(180, 83, 9, 0.25);

  /* Madeira Nobre & Nogueira da Prancheta */
  --color-wood-dark: #2b1b10;
  --color-wood-frame: #3d2617;
  --color-wood-grain: #1f130b;
  --color-wood-clip: #78350f;

  /* Linhas de Pauta Clássica */
  --rule-line-color: rgba(15, 23, 42, 0.08);
  --rule-line-accent: rgba(180, 83, 9, 0.12);

  /* Tema Menino (Padrão) */
  --gender-primary: #1e3a8a;
  --gender-cobalt: #1d4ed8;
  --gender-secondary: #b45309;
  --gender-surface: #f0f7ff;
  --gender-border: #bfdbfe;
  --gender-badge-bg: #dbeafe;
  --gender-badge-text: #1e3a8a;
  --gender-accent-glow: rgba(30, 58, 138, 0.15);
}

/* ==========================================================================
   TEMAS DE GÊNERO DINÂMICOS
   ========================================================================== */

.theme-boy {
  --gender-primary: #0f2942; /* Azul marinho profundo heráldico */
  --gender-cobalt: #1e3a8a;  /* Azul nobre */
  --gender-secondary: #b45309; /* Bronze envelhecido */
  --gender-surface: #f0f7ff;
  --gender-border: #bfdbfe;
  --gender-badge-bg: #dbeafe;
  --gender-badge-text: #1e3a8a;
  --gender-accent-glow: rgba(30, 58, 138, 0.15);
}

.theme-girl {
  --gender-primary: #be123c; /* Rosa chá nobre / rubi clássico */
  --gender-cobalt: #7c3aed;  /* Lavanda suave */
  --gender-secondary: #d97706; /* Dourado champanhe */
  --gender-surface: #fff1f2;
  --gender-border: #fecdd3;
  --gender-badge-bg: #ffe4e6;
  --gender-badge-text: #be123c;
  --gender-accent-glow: rgba(190, 18, 60, 0.15);
}

/* ==========================================================================
   ESTADOS ATIVOS DETERMINÍSTICOS E REATIVIDADE POR SEXO NO PAINEL DE CONTROLES
   Garante imersão visual imediata: Azul Marinho Heráldico (Menino) vs Rubi Nobre (Menina)
   ========================================================================== */

/* Regras Base de Seletores */
.btn-age-select.active {
  border-color: #b45309 !important;
  background-color: rgba(254, 243, 199, 0.5) !important;
  box-shadow: 0 1px 4px rgba(180, 83, 9, 0.18) !important;
}

.btn-gender-select.active.gender-boy {
  border-color: #1e3a8a !important;
  background-color: #eff6ff !important;
  box-shadow: 0 1px 4px rgba(30, 58, 138, 0.18) !important;
}

.btn-gender-select.active.gender-girl {
  border-color: #be123c !important;
  background-color: #fff1f2 !important;
  box-shadow: 0 1px 4px rgba(190, 18, 60, 0.18) !important;
}

.btn-theme-select.active {
  border-color: #b45309 !important;
  background-color: rgba(254, 243, 199, 0.5) !important;
  box-shadow: 0 1px 4px rgba(180, 83, 9, 0.18) !important;
}

.theme-girl .btn-theme-select.active {
  border-color: #be123c !important;
  background-color: rgba(255, 241, 242, 0.7) !important;
  box-shadow: 0 1px 4px rgba(190, 18, 60, 0.18) !important;
}

/* ==========================================================================
   PAINEL DE CONTROLES REATIVO: MODO MENINO (AZUL MARINHO NOBRE HERÁLDICO)
   ========================================================================== */
#simulator-controls-panel.gender-boy .simulator-step-card {
  border-color: rgba(30, 58, 138, 0.22);
  box-shadow: 0 4px 16px -2px rgba(15, 41, 66, 0.06), 0 2px 6px -1px rgba(30, 58, 138, 0.06);
}

#simulator-controls-panel.gender-boy .step-badge {
  background-color: #1e3a8a !important;
  color: #ffffff !important;
  box-shadow: 0 2px 6px rgba(30, 58, 138, 0.35);
}

#simulator-controls-panel.gender-boy .step-indicator-tag {
  color: #1e3a8a;
}

#simulator-controls-panel.gender-boy #theme-step-subtitle {
  color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-age-select:hover {
  border-color: rgba(30, 58, 138, 0.45);
}

#simulator-controls-panel.gender-boy .btn-age-select.active {
  border-color: #1e3a8a !important;
  background-color: #eff6ff !important;
  box-shadow: 0 1px 5px rgba(30, 58, 138, 0.2) !important;
}

#simulator-controls-panel.gender-boy .btn-age-select.active .age-btn-title {
  color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-age-select.active .age-radio-dot {
  background-color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-gender-select.gender-boy.active {
  border-color: #1e3a8a !important;
  background-color: #eff6ff !important;
  box-shadow: 0 2px 8px rgba(30, 58, 138, 0.22) !important;
}

#simulator-controls-panel.gender-boy .btn-gender-select.gender-boy.active .gender-btn-title {
  color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-gender-select.gender-boy.active .gender-radio-dot {
  background-color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-gender-select.gender-boy.active .gender-icon-wrapper {
  background-color: #1e3a8a !important;
  color: #ffffff !important;
  border-color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-theme-select:hover {
  border-color: rgba(30, 58, 138, 0.45);
}

#simulator-controls-panel.gender-boy .btn-theme-select.active {
  border-color: #1e3a8a !important;
  background-color: #eff6ff !important;
  box-shadow: 0 2px 8px rgba(30, 58, 138, 0.18) !important;
}

#simulator-controls-panel.gender-boy .btn-theme-select.active h4 {
  color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-theme-select.active .rounded-full {
  background-color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-theme-select.active .theme-virtue-tag {
  color: #1e3a8a !important;
}

#simulator-controls-panel.gender-boy .btn-simulator-cta {
  background: linear-gradient(135deg, #0f2942 0%, #1e3a8a 50%, #0f2942 100%) !important;
  border: 1px solid rgba(191, 219, 254, 0.3) !important;
  box-shadow: 0 4px 14px rgba(15, 41, 66, 0.25) !important;
}

#simulator-controls-panel.gender-boy .btn-simulator-cta:hover {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #1e3a8a 100%) !important;
}

/* ==========================================================================
   PAINEL DE CONTROLES REATIVO: MODO MENINA (ROSA CHÁ CLÁSSICO / RUBI NOBRE)
   ========================================================================== */
#simulator-controls-panel.gender-girl .simulator-step-card {
  border-color: rgba(190, 18, 60, 0.22);
  box-shadow: 0 4px 16px -2px rgba(190, 18, 60, 0.06), 0 2px 6px -1px rgba(190, 18, 60, 0.06);
}

#simulator-controls-panel.gender-girl .step-badge {
  background-color: #be123c !important;
  color: #ffffff !important;
  box-shadow: 0 2px 6px rgba(190, 18, 60, 0.35);
}

#simulator-controls-panel.gender-girl .step-indicator-tag {
  color: #be123c;
}

#simulator-controls-panel.gender-girl #theme-step-subtitle {
  color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-age-select:hover {
  border-color: rgba(190, 18, 60, 0.45);
}

#simulator-controls-panel.gender-girl .btn-age-select.active {
  border-color: #be123c !important;
  background-color: #fff1f2 !important;
  box-shadow: 0 1px 5px rgba(190, 18, 60, 0.2) !important;
}

#simulator-controls-panel.gender-girl .btn-age-select.active .age-btn-title {
  color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-age-select.active .age-radio-dot {
  background-color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-gender-select.gender-girl.active {
  border-color: #be123c !important;
  background-color: #fff1f2 !important;
  box-shadow: 0 2px 8px rgba(190, 18, 60, 0.22) !important;
}

#simulator-controls-panel.gender-girl .btn-gender-select.gender-girl.active .gender-btn-title {
  color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-gender-select.gender-girl.active .gender-radio-dot {
  background-color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-gender-select.gender-girl.active .gender-icon-wrapper {
  background-color: #be123c !important;
  color: #ffffff !important;
  border-color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-theme-select:hover {
  border-color: rgba(190, 18, 60, 0.45);
}

#simulator-controls-panel.gender-girl .btn-theme-select.active {
  border-color: #be123c !important;
  background-color: #fff1f2 !important;
  box-shadow: 0 2px 8px rgba(190, 18, 60, 0.18) !important;
}

#simulator-controls-panel.gender-girl .btn-theme-select.active h4 {
  color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-theme-select.active .rounded-full {
  background-color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-theme-select.active .theme-virtue-tag {
  color: #be123c !important;
}

#simulator-controls-panel.gender-girl .btn-simulator-cta {
  background: linear-gradient(135deg, #9f1239 0%, #be123c 50%, #9f1239 100%) !important;
  border: 1px solid rgba(254, 205, 211, 0.3) !important;
  box-shadow: 0 4px 14px rgba(190, 18, 60, 0.25) !important;
}

#simulator-controls-panel.gender-girl .btn-simulator-cta:hover {
  background: linear-gradient(135deg, #be123c 0%, #e11d48 50%, #be123c 100%) !important;
}

/* ==========================================================================
   ESTRUTURA BASE & TEXTURA DE LINHO
   ========================================================================== */

html {
  background-color: var(--color-parchment-base);
  color: var(--color-ink-deep);
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-parchment-base);
  color: var(--color-ink-deep);
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Textura suave de linho clássico */
.texture-linen {
  background-color: var(--color-parchment-base);
  background-image: radial-gradient(rgba(180, 83, 9, 0.06) 0.75px, transparent 0.75px);
  background-size: 16px 16px;
}

.texture-parchment-warm {
  background-color: var(--color-parchment-warm);
  background-image: radial-gradient(rgba(15, 23, 42, 0.04) 0.75px, transparent 0.75px);
  background-size: 14px 14px;
}

/* ==========================================================================
   BORDAS CLÁSSICAS & AMADEIRADAS
   ========================================================================== */

.border-aged-gold {
  border: 1px solid var(--color-gold-border);
}

.border-double-classic {
  border: 3px double var(--color-gold-aged);
}

.border-wood-classic {
  border: 2px solid var(--color-wood-frame);
}

.shadow-classical-card {
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(180, 83, 9, 0.08);
}

.shadow-glow-aged-gold {
  box-shadow: 0 0 25px -4px var(--color-gold-glow);
}

/* ==========================================================================
/* ==========================================================================
   CADERNO CLÁSSICO ANTIGO DE ESTUDOS
   Capa de couro escurecido envelhecido, cantoneiras de latão e espiral lateral
   ========================================================================== */

.classic-notebook-tome {
  background: 
    radial-gradient(ellipse at 20% 20%, #3a2213 0%, #26160d 45%, #150a04 100%);
  border: 4px solid #3d2315;
  border-radius: 12px 20px 20px 12px;
  box-shadow: 
    0 30px 65px -12px rgba(18, 10, 5, 0.7),
    0 14px 30px -6px rgba(0, 0, 0, 0.55),
    inset 0 0 0 1px rgba(180, 83, 9, 0.25),
    inset 0 0 0 4px rgba(20, 12, 6, 0.9),
    inset 0 0 35px rgba(0, 0, 0, 0.85);
  position: relative;
  transition: all 0.3s ease;
}

/* Cantoneiras de Latão Antigo nos Cantos da Capa */
.antique-brass-corner {
  position: absolute;
  width: 42px;
  height: 42px;
  pointer-events: none;
  z-index: 30;
}

.antique-brass-corner.top-right {
  top: -2px;
  right: -2px;
  border-top: 4px solid #8c6f3d;
  border-right: 4px solid #8c6f3d;
  border-top-right-radius: 18px;
  background: linear-gradient(135deg, transparent 50%, rgba(140, 111, 61, 0.2) 50%, rgba(223, 195, 132, 0.35) 75%, transparent 100%);
  box-shadow: inset -2px 2px 4px rgba(243, 223, 162, 0.3);
}

.antique-brass-corner.bottom-right {
  bottom: -2px;
  right: -2px;
  border-bottom: 4px solid #8c6f3d;
  border-right: 4px solid #8c6f3d;
  border-bottom-right-radius: 18px;
  background: linear-gradient(45deg, transparent 50%, rgba(140, 111, 61, 0.2) 50%, rgba(223, 195, 132, 0.35) 75%, transparent 100%);
  box-shadow: inset -2px -2px 4px rgba(243, 223, 162, 0.3);
}

.antique-brass-corner::after {
  content: "";
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle, #f3dfa2 30%, #8c6f3d 80%, #3d2a15 100%);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);
}

.antique-brass-corner.top-right::after {
  top: 7px;
  right: 7px;
}

.antique-brass-corner.bottom-right::after {
  bottom: 7px;
  right: 7px;
}

/* Fitilho / Marcador de Página em Fita Nobre Bordô e Dourado */
.antique-ribbon-bookmark {
  position: absolute;
  top: -8px;
  left: 96px;
  width: 14px;
  height: 52px;
  background: linear-gradient(180deg, #78350f 0%, #b45309 60%, #92400e 100%);
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  border-right: 1px solid rgba(0, 0, 0, 0.4);
  box-shadow: 2px 4px 6px rgba(0, 0, 0, 0.35);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 84%, 0 100%);
  z-index: 25;
}

/* Coluna da Espiral Lateral de Latão Envelhecido / Ferro Forjado */
.spiral-spine-column {
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 8px;
  width: 44px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  z-index: 25;
  pointer-events: none;
}

@media (min-width: 640px) {
  .spiral-spine-column {
    left: 14px;
    width: 48px;
    top: 28px;
    bottom: 28px;
  }
}

.spiral-wire-unit {
  position: relative;
  width: 44px;
  height: 18px;
  display: flex;
  align-items: center;
}

@media (min-width: 640px) {
  .spiral-wire-unit {
    width: 48px;
    height: 20px;
  }
}

/* Orifício de Perfuração Clássico no Papel */
.spiral-punch-hole {
  position: absolute;
  left: 24px;
  width: 8px;
  height: 13px;
  border-radius: 2px;
  background-color: #160c07;
  box-shadow: inset 1px 1px 3px rgba(0, 0, 0, 0.95), 0 0 1px rgba(255, 255, 255, 0.15);
  border: 0.5px solid #2e1a0f;
  z-index: 10;
}

@media (min-width: 640px) {
  .spiral-punch-hole {
    left: 28px;
    width: 9px;
    height: 14px;
  }
}

/* Anéis Duplos Metálicos de Latão Antigo (Twin-Wire Loop) */
.spiral-twin-wire {
  position: absolute;
  left: 2px;
  width: 30px;
  height: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 20;
}

@media (min-width: 640px) {
  .spiral-twin-wire {
    width: 34px;
    height: 18px;
  }
}

.spiral-twin-wire .wire-strand {
  display: block;
  width: 100%;
  height: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, #382414 0%, #8c6f3d 20%, #d4b472 45%, #f7e6b8 55%, #8c6f3d 80%, #2b1a0d 100%);
  box-shadow: 
    1px 2px 3px rgba(0, 0, 0, 0.45),
    inset 0 1px 1px rgba(255, 255, 255, 0.5),
    inset 0 -1px 1px rgba(0, 0, 0, 0.4);
  border: 0.5px solid #5a4122;
}

/* ==========================================================================
   CONJUNTO NOBRE DE ESCRITA DE MESA: CANETA-TINTEIRO & TINTEIRO DE CRISTAL
   Erudição, caligrafia clássica e imersão sensorial de estúdio de estudo
   ========================================================================== */

.desk-stationery-set {
  z-index: 25;
  filter: drop-shadow(0 14px 22px rgba(15, 23, 42, 0.16));
}

.desk-inkwell-container {
  cursor: pointer;
  filter: drop-shadow(0 8px 12px rgba(15, 23, 42, 0.18));
}

.desk-inkwell-container:hover .desk-inkwell-svg {
  filter: brightness(1.05) drop-shadow(0 10px 16px rgba(180, 83, 9, 0.25));
}

.desk-fountain-pen-container {
  cursor: pointer;
  filter: drop-shadow(4px 10px 14px rgba(15, 23, 42, 0.22));
}

.desk-fountain-pen-container:hover .desk-fountain-pen-svg {
  filter: brightness(1.06) drop-shadow(4px 14px 18px rgba(180, 83, 9, 0.3));
}

.desk-inkwell-svg,
.desk-fountain-pen-svg {
  display: block;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Lápis de Grafite Clássico (Legado / Compatibilidade) */
.pencil-body {
  background: linear-gradient(90deg, #92400e 0%, #d97706 40%, #78350f 100%);
  box-shadow: 4px 6px 12px rgba(0, 0, 0, 0.25);
}

/* ==========================================================================
   FOLHA A4 CLÁSSICA COM PAUTAS DE CADERNO ANTIGO & MOLDURAS TEMÁTICAS
   Proporção autêntica de folha A4 com pautas sépia e linha de margem histórica
   ========================================================================== */

.sheet-a4-canvas {
  background-color: #fbf7ee;
  background-image: 
    /* Linha de margem vertical clássica (sépia suave) */
    linear-gradient(to right, transparent 32px, rgba(180, 83, 9, 0.2) 32px, rgba(180, 83, 9, 0.2) 33px, transparent 33px),
    /* Pautas horizontais de caderno de caligrafia antigo (espaçamento 32px) */
    repeating-linear-gradient(to bottom, transparent, transparent 31px, rgba(140, 111, 61, 0.08) 31px, rgba(140, 111, 61, 0.08) 32px),
    /* Gradiente sutil de tonalidade do papel pergaminho com leve sombra na dobra da espiral */
    linear-gradient(to right, #eedfc8 0%, #f7f0e3 28px, #fbf7ee 60px, #fbf7ee calc(100% - 15px), #f5ecdc 100%);
  border: 1px solid #dcd1be;
  border-radius: 2px 6px 6px 2px;
  /* Bloco de páginas do caderno clássico (Stack effect) */
  box-shadow: 
    2px 1px 0 #ede3d1,
    4px 2px 0 #e3d5be,
    6px 3px 0 #d7c5a9,
    10px 6px 18px rgba(0, 0, 0, 0.35),
    inset 14px 0 16px -10px rgba(35, 20, 10, 0.15);
  font-family: "Merriweather", Georgia, serif;
  color: var(--color-ink-deep);
  position: relative;
  min-height: 860px;
}

@media (min-width: 640px) {
  .sheet-a4-canvas {
    min-height: 920px;
    background-image: 
      linear-gradient(to right, transparent 44px, rgba(180, 83, 9, 0.2) 44px, rgba(180, 83, 9, 0.2) 45px, transparent 45px),
      repeating-linear-gradient(to bottom, transparent, transparent 31px, rgba(140, 111, 61, 0.08) 31px, rgba(140, 111, 61, 0.08) 32px),
      linear-gradient(to right, #eedfc8 0%, #f7f0e3 36px, #fbf7ee 80px, #fbf7ee calc(100% - 20px), #f5ecdc 100%);
  }
}

/* Moldura Interna Padrão */
.sheet-inner-border {
  position: absolute;
  pointer-events: none;
  inset: 10px 10px 10px 24px;
  border: 1px solid var(--color-gold-border);
  transition: all 0.3s ease;
}

.sheet-inner-border-fine {
  position: absolute;
  pointer-events: none;
  inset: 14px 14px 14px 28px;
  border: 1px solid rgba(180, 83, 9, 0.15);
  transition: all 0.3s ease;
}

@media (min-width: 640px) {
  .sheet-inner-border {
    inset: 12px 12px 12px 32px;
  }
  .sheet-inner-border-fine {
    inset: 16px 16px 16px 36px;
  }
}

/* Cantoneiras Ornamentais (Top-Left, Top-Right, Bottom-Left, Bottom-Right) */
.ornament-corner {
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
  z-index: 15;
  transition: all 0.3s ease;
}

.ornament-corner.top-left { top: 10px; left: 24px; }
.ornament-corner.top-right { top: 10px; right: 10px; }
.ornament-corner.bottom-left { bottom: 10px; left: 24px; }
.ornament-corner.bottom-right { bottom: 10px; right: 10px; }

@media (min-width: 640px) {
  .ornament-corner.top-left { top: 12px; left: 32px; }
  .ornament-corner.top-right { top: 12px; right: 12px; }
  .ornament-corner.bottom-left { bottom: 12px; left: 32px; }
  .ornament-corner.bottom-right { bottom: 12px; right: 12px; }
}

/* --------------------------------------------------------------------------
   IDENTIDADE VISUAL: MENINO (.theme-boy)
   Borda heráldica dupla em azul marinho profundo (#0f2942) e bronze (#b45309)
   -------------------------------------------------------------------------- */
.theme-boy .sheet-inner-border {
  border: 2px solid #0f2942;
  inset: 10px 10px 10px 24px;
}

.theme-boy .sheet-inner-border-fine {
  border: 1px solid #b45309;
  inset: 14px 14px 14px 28px;
}

@media (min-width: 640px) {
  .theme-boy .sheet-inner-border {
    inset: 12px 12px 12px 32px;
  }
  .theme-boy .sheet-inner-border-fine {
    inset: 16px 16px 16px 36px;
  }
}

.theme-boy .sheet-a4-canvas {
  background-color: #fdfcf9;
}

.theme-boy .ornament-corner.top-left {
  border-top: 3px solid #b45309;
  border-left: 3px solid #b45309;
}

.theme-boy .ornament-corner.top-right {
  border-top: 3px solid #b45309;
  border-right: 3px solid #b45309;
}

.theme-boy .ornament-corner.bottom-left {
  border-bottom: 3px solid #b45309;
  border-left: 3px solid #b45309;
}

.theme-boy .ornament-corner.bottom-right {
  border-bottom: 3px solid #b45309;
  border-right: 3px solid #b45309;
}

/* --------------------------------------------------------------------------
   IDENTIDADE VISUAL: MENINA (.theme-girl)
   Borda delicada com filigrana clássica em tom rosa chá nobre (#be123c)
   -------------------------------------------------------------------------- */
.theme-girl .sheet-inner-border {
  border: 3px double #be123c;
  inset: 10px 10px 10px 24px;
  border-radius: 4px;
}

.theme-girl .sheet-inner-border-fine {
  border: 1px dashed rgba(190, 18, 60, 0.35);
  inset: 14px 14px 14px 28px;
  border-radius: 2px;
}

@media (min-width: 640px) {
  .theme-girl .sheet-inner-border {
    inset: 12px 12px 12px 32px;
  }
  .theme-girl .sheet-inner-border-fine {
    inset: 16px 16px 16px 36px;
  }
}

.theme-girl .sheet-a4-canvas {
  background-color: #fffdfd;
}

.theme-girl .ornament-corner.top-left {
  border-top: 3px solid #be123c;
  border-left: 3px solid #be123c;
  border-top-left-radius: 6px;
}

.theme-girl .ornament-corner.top-right {
  border-top: 3px solid #be123c;
  border-right: 3px solid #be123c;
  border-top-right-radius: 6px;
}

.theme-girl .ornament-corner.bottom-left {
  border-bottom: 3px solid #be123c;
  border-left: 3px solid #be123c;
  border-bottom-left-radius: 6px;
}

.theme-girl .ornament-corner.bottom-right {
  border-bottom: 3px solid #be123c;
  border-right: 3px solid #be123c;
  border-bottom-right-radius: 6px;
}

/* --------------------------------------------------------------------------
   IDENTIDADE VISUAL: PRIMEIRA INFÂNCIA 2 A 4 ANOS (.toddler-mode)
   Moldura lúdica pontilhada com cantos suaves arredondados
   -------------------------------------------------------------------------- */
.toddler-mode .sheet-inner-border {
  border: 3px dashed #d97706 !important;
  border-radius: 16px !important;
  inset: 10px 10px 10px 24px !important;
}

.toddler-mode .sheet-inner-border-fine {
  border: 1.5px dotted rgba(217, 119, 6, 0.45) !important;
  border-radius: 12px !important;
  inset: 14px 14px 14px 28px !important;
}

@media (min-width: 640px) {
  .toddler-mode .sheet-inner-border {
    inset: 12px 12px 12px 32px !important;
  }
  .toddler-mode .sheet-inner-border-fine {
    inset: 16px 16px 16px 36px !important;
  }
}

.toddler-mode .sheet-a4-canvas {
  background-color: #fffefb !important;
}

.toddler-mode .ornament-corner {
  display: none !important;
}

/* ==========================================================================
   PAUTA CALIGRÁFICA CLÁSSICA (GUIA DE 3 LINHAS)
   ========================================================================== */

.calligraphy-guideline {
  height: 28px;
  background-image: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.12) 0px, transparent 1px,
    transparent 13px,
    rgba(180, 83, 9, 0.25) 14px, transparent 15px,
    transparent 27px,
    rgba(15, 23, 42, 0.12) 28px
  );
  background-color: rgba(254, 252, 247, 0.6);
  border-radius: 2px;
}

.theme-girl .calligraphy-guideline {
  background-image: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.1) 0px, transparent 1px,
    transparent 13px,
    rgba(190, 18, 60, 0.22) 14px, transparent 15px,
    transparent 27px,
    rgba(15, 23, 42, 0.1) 28px
  );
}

/* ==========================================================================
   SELO FORMAL DE VISTO DOS PAIS
   ========================================================================== */

.stamp-seal-parent {
  border: 2px dashed #b45309;
  background-color: rgba(254, 243, 199, 0.4);
  color: #78350f;
  border-radius: 8px;
}

.theme-girl .stamp-seal-parent {
  border-color: #be123c;
  background-color: rgba(255, 241, 242, 0.5);
  color: #881337;
}

.toddler-mode .stamp-seal-parent {
  border-color: #d97706;
  background-color: rgba(254, 243, 199, 0.6);
  color: #78350f;
}

/* ==========================================================================
   ABAS DE ALTERNÂNCIA FRENTE / VERSO
   ========================================================================== */

.tab-face-toggle {
  display: inline-flex;
  padding: 4px;
  background-color: var(--color-parchment-warm);
  border: 1px solid var(--color-parchment-border);
  border-radius: 12px;
  gap: 6px;
}

.tab-face-btn {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.2s ease-in-out;
  color: var(--color-ink-soft);
}

.tab-face-btn.active {
  background-color: #ffffff;
  color: var(--color-ink-deep);
  border: 1px solid var(--color-gold-border);
  box-shadow: 0 2px 8px rgba(180, 83, 9, 0.12);
}

.tab-face-btn:hover:not(.active) {
  color: var(--color-gold-aged);
  background-color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   BOTÕES & AÇÕES NOBRES
   ========================================================================== */

.btn-classical-primary {
  background: linear-gradient(135deg, #b45309 0%, #d97706 50%, #b45309 100%);
  color: #ffffff;
  border: 1px solid #78350f;
  box-shadow: 0 4px 14px rgba(180, 83, 9, 0.25);
  font-weight: 700;
  transition: all 0.2s ease;
}

.btn-classical-primary:hover {
  background: linear-gradient(135deg, #92400e 0%, #b45309 50%, #92400e 100%);
  box-shadow: 0 6px 20px rgba(180, 83, 9, 0.35);
  transform: translateY(-1px);
}

.btn-classical-secondary {
  background-color: #ffffff;
  color: var(--color-ink-deep);
  border: 1px solid var(--color-parchment-border);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.05);
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-classical-secondary:hover {
  border-color: var(--color-gold-aged);
  color: var(--color-gold-aged);
  background-color: var(--color-parchment-warm);
}

/* ==========================================================================
   ACORDEÃO DO FAQ & MODAIS
   ========================================================================== */

.faq-card {
  background-color: #ffffff;
  border: 1px solid var(--color-parchment-border);
  border-radius: 12px;
  transition: all 0.2s ease;
}

.faq-card:hover {
  border-color: var(--color-gold-aged);
  box-shadow: 0 4px 14px rgba(180, 83, 9, 0.08);
}

/* Barra de rolagem discreta */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-parchment-warm);
}

::-webkit-scrollbar-thumb {
  background: var(--color-parchment-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gold-aged);
}

/* ==========================================================================
   CALCULADORA DE FILHOS & BADGES DE DESCONTO / TRIAL
   ========================================================================== */

.btn-calc-children {
  background-color: #ffffff;
  color: var(--color-ink-soft);
  border: 1.5px solid var(--color-parchment-border);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  cursor: pointer;
}

.btn-calc-children:hover:not(.active) {
  border-color: var(--color-gold-aged);
  background-color: var(--color-parchment-warm);
  transform: translateY(-1px);
}

.btn-calc-children.active {
  background-color: #ffffff !important;
  border-color: var(--color-gold-aged) !important;
  border-width: 2px !important;
  color: var(--color-ink-deep) !important;
  box-shadow: 0 4px 14px rgba(180, 83, 9, 0.2) !important;
  transform: translateY(-1px);
}

.btn-modal-children {
  background-color: #ffffff;
  color: var(--color-ink-soft);
  border: 1px solid var(--color-parchment-border);
  cursor: pointer;
}

.btn-modal-children:hover:not(.active) {
  border-color: var(--color-gold-aged);
  background-color: var(--color-parchment-warm);
}

.btn-modal-children.active {
  background-color: var(--color-gold-light) !important;
  border-color: var(--color-gold-aged) !important;
  border-width: 1.5px !important;
  color: var(--color-ink-deep) !important;
  font-weight: 700 !important;
  box-shadow: 0 2px 6px rgba(180, 83, 9, 0.18) !important;
}

/* ==========================================================================
   NAVEGACAO EDITORIAL RESPONSIVA • CADERNO CLASSICO
   Garante visibilidade deterministica da navegacao (md:flex / 969px) sob file:///
   ========================================================================== */
@media (min-width: 768px) {
  header nav,
  .md\:flex {
    display: flex !important;
  }
  #mobile-menu-btn,
  #mobile-menu,
  .md\:hidden {
    display: none !important;
  }
}

@media (max-width: 767px) {
  header nav {
    display: none !important;
  }
  #mobile-menu-btn {
    display: flex !important;
  }
}