/* ============================================================
   VERBRASIL — Sistema de Design
   Jornal literário · Plataforma de ensino · Brasil
   ============================================================ */

/* ── Fontes ─────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,800;1,400;1,600&family=Inter:wght@300;400;500;600;700&family=Lora:ital,wght@0,400;0,600;1,400&display=swap');

/* ── Variáveis de Design ─────────────────────────────────────── */
:root {
    /* Paleta Verbrasil */
    --vb-ink:         #0d1117;        /* Tinta preta editorial */
    --vb-ink-soft:    #1a2332;        /* Preto suavizado */
    --vb-gold:        #D4A017;        /* Dourado literário */
    --vb-gold-light:  #E8C547;        /* Dourado claro */
    --vb-gold-pale:   #F5E6A3;        /* Dourado pálido */
    --vb-green:       #1B4332;        /* Verde Brasil profundo */
    --vb-green-mid:   #2D6A4F;        /* Verde médio */
    --vb-green-light: #52B788;        /* Verde claro */
    --vb-paper:       #F5F0E8;        /* Papel de jornal */
    --vb-paper-dark:  #EDE5D4;        /* Papel mais escuro */
    --vb-red:         #C0392B;        /* Caneta vermelha do editor */
    --vb-cream:       #FDFAF5;        /* Creme quase branco */

    /* Texto */
    --vb-text-on-dark:   #E8DCC8;    /* Texto sobre fundos escuros */
    --vb-text-muted:     #8A7B6B;    /* Texto secundário */
    --vb-text-ink:       #1a1a1a;    /* Texto sobre fundos claros */

    /* Glassmorphism escuro */
    --vb-glass-bg:     rgba(13, 17, 23, 0.75);
    --vb-glass-border: rgba(212, 160, 23, 0.2);
    --vb-glass-light:  rgba(255, 255, 255, 0.04);

    /* Sombras */
    --vb-shadow-sm:  0 2px 8px rgba(0,0,0,0.3);
    --vb-shadow-md:  0 8px 24px rgba(0,0,0,0.4);
    --vb-shadow-gold: 0 4px 20px rgba(212, 160, 23, 0.25);

    /* Bordas */
    --vb-radius-sm: 6px;
    --vb-radius-md: 12px;
    --vb-radius-lg: 20px;

    /* Transições */
    --vb-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* ── Aliases legados (compatibilidade com aluno.css / admin.css) ── */
    --bg-dark:        var(--vb-ink);
    --bg-card:        var(--vb-glass-bg);
    --bg-glass:       var(--vb-glass-bg);
    --border:         var(--vb-glass-border);
    --border-hover:   rgba(212, 160, 23, 0.35);
    --primary:        var(--vb-gold);
    --primary-light:  var(--vb-gold-light);
    --primary-dark:   var(--vb-green);
    --primary-color:  var(--vb-gold);
    --secondary:      var(--vb-green-light);
    --accent:         var(--vb-gold);
    --text-primary:   var(--vb-text-on-dark);
    --text-secondary: var(--vb-text-muted);
    --text-muted:     var(--vb-text-muted);
    --font-display:   'Playfair Display', Georgia, serif;
    --font-body:      'Inter', 'Segoe UI', sans-serif;
    --radius:         var(--vb-radius-md);
    --radius-sm:      var(--vb-radius-sm);
    --radius-xl:      var(--vb-radius-lg);
    --transition:     var(--vb-transition);
    --shadow-sm:      var(--vb-shadow-sm);
    --shadow-glow:    var(--vb-shadow-gold);
    --success:        var(--vb-green-light);
    --danger:         #e74c3c;
    --info:           #3498db;
}

/* ── Reset e Base ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    background-color: var(--vb-ink);
    color: var(--vb-text-on-dark);
    font-family: 'Inter', 'Segoe UI', sans-serif;
    font-weight: 400;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Corpo nas áreas de conteúdo claro (jornal lido) */
body.vb-light {
    background-color: var(--vb-cream);
    color: var(--vb-text-ink);
}

/* ── Tipografia ──────────────────────────────────────────────── */
.font-playfair { font-family: 'Playfair Display', Georgia, serif; }
.font-lora     { font-family: 'Lora', Georgia, serif; }
.font-inter    { font-family: 'Inter', sans-serif; }

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

/* ── Utilitários de Texto ────────────────────────────────────── */
.text-gold     { color: var(--vb-gold); }
.text-green    { color: var(--vb-green-light); }
.text-muted-vb { color: var(--vb-text-muted); }
.text-paper    { color: var(--vb-paper); }

.text-gradient-gold {
    background: linear-gradient(135deg, var(--vb-gold) 0%, var(--vb-gold-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-verde {
    background: linear-gradient(135deg, var(--vb-green-light) 0%, var(--vb-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Logo Verbrasil ──────────────────────────────────────────── */
.vb-logo {
    font-family: 'Playfair Display', serif;
    font-weight: 800;
    font-size: 1.6rem;
    letter-spacing: -0.03em;
    text-decoration: none;
    display: inline-flex;
    align-items: baseline;
    gap: 0;
}
.vb-logo .logo-ver   { color: var(--vb-text-on-dark); }
.vb-logo .logo-brasil { color: var(--vb-gold); }
.vb-logo-tagline {
    font-family: 'Inter', sans-serif;
    font-size: 0.6rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--vb-text-muted);
    display: block;
    line-height: 1;
}

/* ── Navbar Verbrasil ────────────────────────────────────────── */
.vb-navbar {
    background-color: rgba(13, 17, 23, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--vb-glass-border);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--vb-transition);
}
.vb-navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}
.vb-navbar .navbar-brand { padding: 0; }
.vb-nav-link {
    color: var(--vb-text-muted) !important;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 0.5rem 0.85rem !important;
    border-radius: var(--vb-radius-sm);
    transition: color var(--vb-transition), background var(--vb-transition);
    text-decoration: none;
}
.vb-nav-link:hover,
.vb-nav-link.active {
    color: var(--vb-gold) !important;
    background: rgba(212, 160, 23, 0.08);
}
.vb-nav-badge {
    background: var(--vb-green);
    color: var(--vb-gold-light);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    vertical-align: middle;
    margin-left: 4px;
}
.vb-edition-ticker {
    font-size: 0.7rem;
    color: var(--vb-text-muted);
    border-left: 1px solid var(--vb-glass-border);
    padding-left: 1rem;
    margin-left: 0.5rem;
    display: flex;
    align-items: center;
    gap: 6px;
}
.vb-edition-ticker .dot-live {
    width: 6px; height: 6px;
    background: var(--vb-red);
    border-radius: 50%;
    animation: pulse-red 1.5s infinite;
}
@keyframes pulse-red {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(1.4); }
}

/* ── Botões ──────────────────────────────────────────────────── */
.btn-vb-primary {
    background: linear-gradient(135deg, var(--vb-gold) 0%, #B8860B 100%);
    color: var(--vb-ink) !important;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    padding: 0.65rem 1.5rem;
    border: none;
    border-radius: var(--vb-radius-sm);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: transform var(--vb-transition), box-shadow var(--vb-transition), filter var(--vb-transition);
    box-shadow: var(--vb-shadow-gold);
}
.btn-vb-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(212, 160, 23, 0.4);
    filter: brightness(1.05);
    color: var(--vb-ink) !important;
}

.btn-vb-outline {
    background: transparent;
    color: var(--vb-gold) !important;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.6rem 1.4rem;
    border: 1px solid rgba(212, 160, 23, 0.4);
    border-radius: var(--vb-radius-sm);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: background var(--vb-transition), border-color var(--vb-transition), transform var(--vb-transition);
}
.btn-vb-outline:hover {
    background: rgba(212, 160, 23, 0.1);
    border-color: var(--vb-gold);
    transform: translateY(-1px);
}

.btn-vb-green {
    background: var(--vb-green);
    color: var(--vb-gold-light) !important;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.65rem 1.5rem;
    border: none;
    border-radius: var(--vb-radius-sm);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: background var(--vb-transition), transform var(--vb-transition);
}
.btn-vb-green:hover {
    background: var(--vb-green-mid);
    transform: translateY(-2px);
}

.btn-vb-ghost {
    background: transparent;
    color: var(--vb-text-muted) !important;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--vb-radius-sm);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: color var(--vb-transition), border-color var(--vb-transition);
}
.btn-vb-ghost:hover {
    color: var(--vb-text-on-dark) !important;
    border-color: rgba(255,255,255,0.25);
}

/* ── Cards ───────────────────────────────────────────────────── */
.card-vb {
    background: var(--vb-glass-bg);
    border: 1px solid var(--vb-glass-border);
    border-radius: var(--vb-radius-md);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--vb-shadow-sm);
    transition: transform var(--vb-transition), box-shadow var(--vb-transition), border-color var(--vb-transition);
    overflow: hidden;
}
.card-vb:hover {
    transform: translateY(-3px);
    box-shadow: var(--vb-shadow-md);
    border-color: rgba(212, 160, 23, 0.35);
}
.card-vb-light {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: var(--vb-radius-md);
}

/* Card de seção do jornal */
.card-secao {
    padding: 1.5rem;
    border-radius: var(--vb-radius-md);
    background: var(--vb-glass-bg);
    border: 1px solid var(--vb-glass-border);
    text-align: center;
    transition: all var(--vb-transition);
    cursor: default;
}
.card-secao:hover {
    border-color: var(--vb-gold);
    background: rgba(212, 160, 23, 0.06);
    transform: translateY(-3px);
}
.card-secao .secao-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    display: block;
}
.card-secao .secao-nome {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--vb-text-on-dark);
    margin-bottom: 0.4rem;
}
.card-secao .secao-desc {
    font-size: 0.8rem;
    color: var(--vb-text-muted);
    line-height: 1.5;
}

/* ── Divisor estilo jornal ───────────────────────────────────── */
.vb-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 2.5rem 0;
}
.vb-divider::before,
.vb-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--vb-glass-border), transparent);
}
.vb-divider span {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--vb-text-muted);
    font-weight: 600;
    white-space: nowrap;
}

/* Linha dourada decorativa */
.vb-line-gold {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--vb-gold), transparent);
    border: none;
    margin: 0;
}
.vb-line-gold-left {
    height: 2px;
    background: linear-gradient(90deg, var(--vb-gold) 0%, transparent 100%);
    border: none;
    margin: 0;
    width: 60px;
}

/* ── Seção / Container ───────────────────────────────────────── */
.vb-section {
    padding: 5rem 0;
}
.vb-section-sm {
    padding: 3rem 0;
}
.vb-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.vb-section-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--vb-gold);
    display: block;
    margin-bottom: 0.75rem;
}
.vb-section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
}
.vb-section-subtitle {
    font-size: 1.05rem;
    color: var(--vb-text-muted);
    line-height: 1.7;
    max-width: 600px;
}

/* ── Badges ──────────────────────────────────────────────────── */
.badge-vb-gold {
    background: rgba(212, 160, 23, 0.15);
    color: var(--vb-gold);
    border: 1px solid rgba(212, 160, 23, 0.3);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 3px 10px;
    border-radius: 4px;
    text-transform: uppercase;
}
.badge-vb-green {
    background: rgba(27, 67, 50, 0.6);
    color: var(--vb-green-light);
    border: 1px solid rgba(82, 183, 136, 0.3);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 3px 10px;
    border-radius: 4px;
    text-transform: uppercase;
}
.badge-vb-red {
    background: rgba(192, 57, 43, 0.15);
    color: #e74c3c;
    border: 1px solid rgba(192, 57, 43, 0.3);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 3px 10px;
    border-radius: 4px;
    text-transform: uppercase;
}
.badge-secao {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid;
}
.badge-cronica  { color: #9b59b6; border-color: #9b59b6; background: rgba(155,89,182,0.1); }
.badge-poesia   { color: #e74c3c; border-color: #e74c3c; background: rgba(231,76,60,0.1); }
.badge-ensaio   { color: #2980b9; border-color: #2980b9; background: rgba(41,128,185,0.1); }
.badge-carta    { color: #16a085; border-color: #16a085; background: rgba(22,160,133,0.1); }
.badge-humor    { color: var(--vb-gold); border-color: var(--vb-gold); background: rgba(212,160,23,0.1); }
.badge-conto    { color: #e67e22; border-color: #e67e22; background: rgba(230,126,34,0.1); }
.badge-relato   { color: var(--vb-green-light); border-color: var(--vb-green-light); background: rgba(82,183,136,0.1); }
.badge-debate   { color: #c0392b; border-color: #c0392b; background: rgba(192,57,43,0.1); }

/* ── Flash / Alertas ─────────────────────────────────────────── */
.alert-vb {
    border-radius: var(--vb-radius-sm);
    border: 1px solid;
    padding: 0.85rem 1.25rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.alert-vb-success { background: rgba(27,67,50,0.4); border-color: var(--vb-green-light); color: var(--vb-green-light); }
.alert-vb-error   { background: rgba(192,57,43,0.2); border-color: #e74c3c; color: #e74c3c; }
.alert-vb-warning { background: rgba(212,160,23,0.1); border-color: var(--vb-gold); color: var(--vb-gold); }
.alert-vb-info    { background: rgba(41,128,185,0.1); border-color: #3498db; color: #3498db; }

/* ── Prof. Machado — Chat ────────────────────────────────────── */
.machado-avatar {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--vb-green) 0%, var(--vb-ink) 100%);
    border: 2px solid var(--vb-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
    box-shadow: var(--vb-shadow-gold);
}
.machado-bubble {
    background: rgba(27, 67, 50, 0.3);
    border: 1px solid rgba(82, 183, 136, 0.2);
    border-radius: 0 var(--vb-radius-md) var(--vb-radius-md) var(--vb-radius-md);
    padding: 1rem 1.25rem;
    color: var(--vb-text-on-dark);
    font-size: 0.9rem;
    line-height: 1.65;
    max-width: 85%;
}
.user-bubble {
    background: rgba(212, 160, 23, 0.1);
    border: 1px solid rgba(212, 160, 23, 0.2);
    border-radius: var(--vb-radius-md) 0 var(--vb-radius-md) var(--vb-radius-md);
    padding: 1rem 1.25rem;
    color: var(--vb-text-on-dark);
    font-size: 0.9rem;
    line-height: 1.65;
    max-width: 85%;
    margin-left: auto;
}
.machado-typing span {
    display: inline-block;
    width: 6px; height: 6px;
    background: var(--vb-green-light);
    border-radius: 50%;
    animation: typing-dot 1.4s infinite ease-in-out;
}
.machado-typing span:nth-child(2) { animation-delay: 0.2s; }
.machado-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing-dot {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* ── Área do Aluno (sidebar) ─────────────────────────────────── */
.vb-aluno-layout {
    display: flex;
    gap: 2rem;
    min-height: calc(100vh - 80px);
    padding: 2rem 0;
}
.vb-sidebar {
    width: 260px;
    flex-shrink: 0;
    background: var(--vb-glass-bg);
    border: 1px solid var(--vb-glass-border);
    border-radius: var(--vb-radius-lg);
    padding: 1.5rem 1rem;
    height: fit-content;
    position: sticky;
    top: 100px;
}
.vb-sidebar-user {
    text-align: center;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--vb-glass-border);
    margin-bottom: 1.5rem;
}
.vb-sidebar-avatar {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--vb-green) 0%, var(--vb-ink-soft) 100%);
    border: 2px solid var(--vb-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--vb-gold);
    margin: 0 auto 0.75rem;
}
.vb-sidebar-name {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1rem;
    color: var(--vb-text-on-dark);
}
.vb-sidebar-pts {
    font-size: 0.8rem;
    color: var(--vb-gold);
    font-weight: 600;
}
.vb-sidebar-nav { display: flex; flex-direction: column; gap: 4px; }
.vb-sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    border-radius: var(--vb-radius-sm);
    color: var(--vb-text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--vb-transition);
}
.vb-sidebar-link i { width: 20px; text-align: center; font-size: 0.85rem; }
.vb-sidebar-link:hover,
.vb-sidebar-link.active {
    background: rgba(212, 160, 23, 0.08);
    color: var(--vb-gold);
}
.vb-sidebar-link.danger { color: #e74c3c; }
.vb-sidebar-link.danger:hover { background: rgba(231, 76, 60, 0.1); color: #e74c3c; }
.vb-main-content { flex: 1; min-width: 0; }

/* ── Área Admin (sidebar) ────────────────────────────────────── */
.vb-admin-layout { display: flex; min-height: 100vh; }
.vb-admin-sidebar {
    width: 240px;
    background: #0a0e18;
    border-right: 1px solid rgba(212, 160, 23, 0.15);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
}
.vb-admin-sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(212, 160, 23, 0.15);
}
.vb-admin-sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}
.vb-admin-content { margin-left: 240px; flex: 1; padding: 2rem; }

/* ── Formulários ─────────────────────────────────────────────── */
.vb-form-group { margin-bottom: 1.25rem; }
.vb-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--vb-text-muted);
    margin-bottom: 0.4rem;
}
.vb-input, .vb-textarea, .vb-select {
    width: 100%;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--vb-radius-sm);
    color: var(--vb-text-on-dark);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    transition: border-color var(--vb-transition), background var(--vb-transition);
    outline: none;
}
.vb-input:focus, .vb-textarea:focus, .vb-select:focus {
    border-color: var(--vb-gold);
    background: rgba(212, 160, 23, 0.04);
    box-shadow: 0 0 0 3px rgba(212, 160, 23, 0.08);
}
.vb-select option, .vb-input option, select option {
    background-color: #1a2332;
    color: #ffffff;
    padding: 8px;
}

/* ── Stat Cards ──────────────────────────────────────────────── */
.vb-stat-card {
    background: var(--vb-glass-bg);
    border: 1px solid var(--vb-glass-border);
    border-radius: var(--vb-radius-md);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all var(--vb-transition);
}
.vb-stat-card:hover { border-color: rgba(212,160,23,0.35); transform: translateY(-2px); }
.vb-stat-icon {
    width: 52px; height: 52px;
    border-radius: var(--vb-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}
.vb-stat-icon.gold   { background: rgba(212,160,23,0.12); color: var(--vb-gold); }
.vb-stat-icon.green  { background: rgba(82,183,136,0.12); color: var(--vb-green-light); }
.vb-stat-icon.red    { background: rgba(192,57,43,0.12);  color: #e74c3c; }
.vb-stat-icon.blue   { background: rgba(41,128,185,0.12); color: #3498db; }
.vb-stat-value {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    color: var(--vb-text-on-dark);
}
.vb-stat-label {
    font-size: 0.78rem;
    color: var(--vb-text-muted);
    margin-top: 3px;
    font-weight: 500;
}

/* ── Tabela ──────────────────────────────────────────────────── */
.vb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.vb-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--vb-text-muted);
    border-bottom: 1px solid var(--vb-glass-border);
}
.vb-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    color: var(--vb-text-on-dark);
    vertical-align: middle;
}
.vb-table tr:hover td { background: rgba(255,255,255,0.02); }

/* ── Texto do jornal (leitura) ───────────────────────────────── */
.vb-article-body {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--vb-text-on-dark);
    max-width: 680px;
}
.vb-article-body p { margin-bottom: 1.25rem; }
.vb-article-body p:first-child::first-letter {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--vb-gold);
    float: left;
    line-height: 0.8;
    margin: 0.1em 0.12em 0 0;
}

/* Contador de leitura / barra de progresso */
.vb-read-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--vb-gold), var(--vb-green-light));
    z-index: 9999;
    transition: width 0.1s linear;
}

/* ── Ranking ─────────────────────────────────────────────────── */
.vb-rank-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--vb-radius-sm);
    transition: background var(--vb-transition);
}
.vb-rank-item:hover { background: rgba(255,255,255,0.03); }
.vb-rank-number {
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    font-weight: 800;
    width: 32px;
    text-align: center;
    flex-shrink: 0;
}
.vb-rank-number.gold   { color: var(--vb-gold); }
.vb-rank-number.silver { color: #a8a8b0; }
.vb-rank-number.bronze { color: #cd7f32; }
.vb-rank-number.other  { color: var(--vb-text-muted); font-size: 0.9rem; }

/* ── Curtida / Like ──────────────────────────────────────────── */
.btn-curtir {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--vb-text-muted);
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--vb-transition);
}
.btn-curtir:hover,
.btn-curtir.curtido {
    background: rgba(212, 160, 23, 0.1);
    border-color: var(--vb-gold);
    color: var(--vb-gold);
}
.btn-curtir.curtido i { animation: like-pop 0.3s ease; }
@keyframes like-pop {
    0%  { transform: scale(1); }
    50% { transform: scale(1.4); }
    100% { transform: scale(1); }
}

/* ── Responsividade ──────────────────────────────────────────── */
@media (max-width: 992px) {
    .vb-aluno-layout { flex-direction: column; }
    .vb-sidebar { width: 100%; position: static; }
    .vb-admin-sidebar { position: relative; width: 100%; }
    .vb-admin-content { margin-left: 0; }
    .vb-admin-layout { flex-direction: column; }
}

@media (max-width: 768px) {
    .vb-section { padding: 3rem 0; }
    .vb-section-title { font-size: 1.8rem; }
    .btn-vb-primary, .btn-vb-outline { padding: 0.55rem 1.1rem; font-size: 0.85rem; }
}

@media (max-width: 480px) {
    .vb-logo { font-size: 1.3rem; }
    .vb-logo-tagline { display: none; }
    .vb-container { padding: 0 1rem; }
    .vb-stat-card { flex-direction: column; text-align: center; }
}

/* ── Animações globais ───────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
.anim-fade-up   { animation: fadeInUp 0.6s ease forwards; }
.anim-fade      { animation: fadeIn 0.4s ease forwards; }

/* ── Scrollbar customizada ───────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--vb-ink); }
::-webkit-scrollbar-thumb { background: rgba(212,160,23,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(212,160,23,0.5); }

/* ── Seleção de texto ────────────────────────────────────────── */
::selection { background: rgba(212,160,23,0.25); color: var(--vb-text-on-dark); }

/* ── Compatibilidade Bootstrap & Cores de Conteúdo ─────────── */
.card-glass {
    background: var(--vb-glass-bg);
    border: 1px solid var(--vb-glass-border);
    border-radius: var(--vb-radius-md);
    backdrop-filter: blur(12px);
    color: var(--vb-text-paper);
}
.primary-color, .text-primary { color: var(--vb-gold) !important; }

/* ── Leitura Confortável de Conteúdo Teórico de Aulas ──────── */
.aula-material-conteudo,
.aula-material-conteudo .card,
.aula-material-conteudo .card-glass {
    color: #f1f5f9 !important;
    background: transparent !important;
    border: none !important;
}
.aula-material-conteudo p,
.aula-material-conteudo li,
.aula-material-conteudo div {
    color: #e2e8f0 !important;
    font-size: 1.05rem;
    line-height: 1.8;
}
.aula-material-conteudo strong,
.aula-material-conteudo b {
    color: #ffffff !important;
    font-weight: 600;
}
.aula-material-conteudo h1,
.aula-material-conteudo h2,
.aula-material-conteudo h3,
.aula-material-conteudo h4,
.aula-material-conteudo h5,
.aula-material-conteudo h6 {
    color: #f8fafc !important;
    font-family: 'Playfair Display', serif;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
}
.aula-material-conteudo table {
    color: #e2e8f0 !important;
    border-color: rgba(255,255,255,0.1) !important;
}
.aula-material-conteudo table th {
    background: rgba(255,255,255,0.06) !important;
    color: var(--vb-gold) !important;
}
.aula-material-conteudo table td {
    background: transparent !important;
    color: #cbd5e1 !important;
}

/* ── Keyframes legados (usados em aluno.css) ─────────────────── */
@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 rgba(212, 160, 23, 0); }
    50% { box-shadow: 0 0 20px rgba(212, 160, 23, 0.3); }
}
@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* ============================================================
   RESPONSIVIDADE PREMIUM MOBILE & TABLET (Verbrasil)
   ============================================================ */

/* Bloqueio global de rolagem horizontal */
html, body {
    max-width: 100% !important;
    overflow-x: hidden !important;
    position: relative;
}

img, video, iframe {
    max-width: 100% !important;
    height: auto;
}

/* ── Capas de Livros e Biblioteca (Proporção Áurea 2:3 e Efeito Livro 3D) ── */
.book-cover-wrapper {
    width: 100% !important;
    max-width: 170px !important;
    aspect-ratio: 2 / 3 !important;
    height: auto !important;
    min-height: 220px;
    margin: 0 auto 0.75rem auto !important;
    position: relative;
    border-radius: 4px 8px 8px 4px;
    overflow: hidden;
    background: #121a24;
    border: 1px solid rgba(212, 160, 23, 0.25);
    box-shadow: -4px 0 8px rgba(0, 0, 0, 0.5), 0 10px 24px rgba(0, 0, 0, 0.6);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

/* Simulação realista da lombada do livro */
.book-cover-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 12px;
    background: linear-gradient(to right, rgba(0,0,0,0.65) 0%, rgba(255,255,255,0.12) 30%, rgba(0,0,0,0.4) 100%);
    z-index: 5;
    pointer-events: none;
}

/* Brilho suave de capa */
.book-cover-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.06) 0%, transparent 50%, rgba(0,0,0,0.3) 100%);
    pointer-events: none;
    z-index: 4;
}

.book-cover-wrapper img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    display: block;
}

.hover-glow:hover .book-cover-wrapper {
    transform: translateY(-6px) scale(1.03) rotate(-1deg);
    box-shadow: -6px 0 12px rgba(0, 0, 0, 0.6), 0 16px 32px rgba(212, 160, 23, 0.25);
    border-color: rgba(212, 160, 23, 0.6);
}

/* ── Menu do Aluno Retrátil (Mobile / Tablet) ── */
.vb-sidebar-mobile-control {
    display: none;
}

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

@media (max-width: 991px) {
    .vb-aluno-layout {
        flex-direction: column !important;
        gap: 1rem !important;
        padding: 0.75rem 0 !important;
    }

    .vb-sidebar {
        width: 100% !important;
        position: static !important;
        padding: 0.65rem 0.85rem !important;
        margin-bottom: 0.75rem !important;
        border-radius: var(--vb-radius-md) !important;
        background: rgba(13, 17, 23, 0.8) !important;
        border: 1px solid rgba(212, 160, 23, 0.2) !important;
    }

    /* Perfil do aluno compacto em 1 linha */
    .vb-sidebar-user {
        display: flex !important;
        align-items: center !important;
        text-align: left !important;
        gap: 0.75rem !important;
        padding-bottom: 0.5rem !important;
        margin-bottom: 0.5rem !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
    }

    .vb-sidebar-avatar {
        width: 38px !important;
        height: 38px !important;
        font-size: 1.15rem !important;
        margin: 0 !important;
        flex-shrink: 0 !important;
    }

    .vb-sidebar-name, .vb-sidebar-pts {
        display: block !important;
    }

    .vb-sidebar-name {
        font-size: 0.95rem !important;
        margin-bottom: 0 !important;
        line-height: 1.2 !important;
    }

    .vb-sidebar-pts {
        font-size: 0.75rem !important;
    }

    /* Barra de Controle Retrátil */
    .vb-sidebar-mobile-control {
        display: block !important;
        width: 100% !important;
    }

    .vb-sidebar-toggle-btn {
        width: 100% !important;
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        background: rgba(212, 160, 23, 0.08) !important;
        border: 1px solid rgba(212, 160, 23, 0.3) !important;
        border-radius: 8px !important;
        padding: 0.6rem 0.85rem !important;
        cursor: pointer !important;
        transition: all 0.2s ease !important;
    }

    .vb-sidebar-toggle-btn:hover,
    .vb-sidebar-toggle-btn:focus,
    .vb-sidebar-toggle-btn.active {
        background: rgba(212, 160, 23, 0.16) !important;
        border-color: var(--vb-gold) !important;
    }

    .badge-vb-current {
        background: rgba(212, 160, 23, 0.2) !important;
        color: var(--vb-gold) !important;
        font-size: 0.72rem !important;
        padding: 2px 7px !important;
        border-radius: 10px !important;
        border: 1px solid rgba(212, 160, 23, 0.35) !important;
        font-weight: 500 !important;
    }

    .vb-sidebar-nav .small {
        display: block !important;
        padding-top: 0.4rem !important;
        grid-column: 1 / -1 !important;
    }

    /* MENU RECOLHIDO POR PADRÃO NO MOBILE */
    .vb-sidebar-nav {
        display: none !important;
        padding-top: 0.65rem !important;
        margin-top: 0.5rem !important;
        border-top: 1px dashed rgba(212, 160, 23, 0.2) !important;
    }

    /* QUANDO O USUÁRIO CLICA NO BOTÃO PARA ABRIR */
    .vb-sidebar-nav.is-open {
        display: grid !important;
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)) !important;
        gap: 6px !important;
        animation: vbSlideDownMenu 0.25s cubic-bezier(0.2, 0.9, 0.3, 1) forwards !important;
    }

    .vb-sidebar-link {
        font-size: 0.82rem !important;
        justify-content: flex-start !important;
        padding: 0.65rem 0.8rem !important;
        border-radius: 6px !important;
        background: rgba(255,255,255,0.03) !important;
        border: 1px solid rgba(255,255,255,0.05) !important;
        white-space: normal !important;
        line-height: 1.25 !important;
    }

    .vb-sidebar-link i {
        font-size: 0.95rem !important;
        margin-right: 0.5rem !important;
        flex-shrink: 0 !important;
    }

    .vb-main-content {
        width: 100% !important;
        padding-left: 0 !important;
    }
}

/* ── Ajustes Finos para Celulares (max-width: 576px) ── */
@media (max-width: 576px) {
    .vb-container {
        padding: 0 0.85rem !important;
    }

    .vb-sidebar-nav.is-open {
        grid-template-columns: 1fr 1fr !important;
    }

    .vb-sidebar-link {
        padding: 0.55rem 0.65rem !important;
        font-size: 0.78rem !important;
    }

    /* Biblioteca em 2 colunas proporcionais */
    .col-6 {
        padding-left: 6px !important;
        padding-right: 6px !important;
    }

    .card-vb {
        padding: 0.85rem !important;
    }

    .card-vb h4 {
        font-size: 0.88rem !important;
        line-height: 1.3 !important;
    }

    /* Ticker do jornal */
    .vb-marquee-content {
        font-size: 0.75rem !important;
    }
}

/* ── Tabelas Responsivas Globais (Aulas, Lousa, Gramática) ── */
.table-responsive,
.vb-slide-table-wrap {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    margin: 1.25rem 0 !important;
    border-radius: 8px !important;
    border: 1px solid rgba(212, 160, 23, 0.2) !important;
    background: rgba(13, 17, 23, 0.75) !important;
}

.table-responsive table,
.vb-slide-table-wrap table,
.vb-slide table,
.curso-conteudo table {
    display: table !important;
    width: 100% !important;
    min-width: 480px !important; /* Preserva legibilidade das colunas sem espremer no mobile */
    border-collapse: collapse !important;
    margin: 0 !important;
}

.vb-slide table th,
.vb-slide table td,
.curso-conteudo table th,
.curso-conteudo table td,
.vb-slide-table-wrap th,
.vb-slide-table-wrap td {
    padding: 0.75rem 0.95rem !important;
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    vertical-align: middle !important;
    word-break: normal !important;
}

.vb-slide table th,
.curso-conteudo table th,
.vb-slide-table-wrap th {
    background: rgba(212, 160, 23, 0.15) !important;
    color: var(--vb-gold) !important;
    font-weight: 700 !important;
    font-family: var(--font-secondary, 'Playfair Display', serif) !important;
    white-space: nowrap !important;
}

@media (max-width: 576px) {
    .vb-slide table th,
    .vb-slide table td,
    .curso-conteudo table th,
    .curso-conteudo table td,
    .vb-slide-table-wrap th,
    .vb-slide-table-wrap td {
        padding: 0.55rem 0.7rem !important;
        font-size: 0.82rem !important;
    }
}

/* ── Dock de Reações Literárias Culturais (Fala Verbrasil) ── */
.vb-reaction-wrapper {
    position: relative;
}

.vb-reactions-dock {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    background: rgba(14, 21, 32, 0.96);
    border: 1px solid var(--vb-gold);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.65), 0 0 15px rgba(212, 160, 23, 0.2);
    border-radius: 30px;
    padding: 6px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1050;
    backdrop-filter: blur(12px);
    animation: vbPopIn 0.22s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.vb-reaction-btn {
    background: transparent;
    border: none;
    padding: 4px 6px;
    cursor: pointer;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.vb-reaction-btn:hover {
    transform: scale(1.35) translateY(-5px);
}

.vb-reaction-btn .emoji {
    font-size: 1.35rem;
    line-height: 1;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

.vb-reaction-btn .label {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--vb-paper);
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
    position: absolute;
    top: -26px;
    background: rgba(10, 15, 24, 0.95);
    border: 1px solid rgba(212, 160, 23, 0.4);
    padding: 2px 8px;
    border-radius: 12px;
    pointer-events: none;
    transform: translateY(4px);
}

.vb-reaction-btn:hover .label {
    opacity: 1;
    transform: translateY(0);
}

@keyframes vbPopIn {
    from {
        opacity: 0;
        transform: translateY(8px) scale(0.88);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}