/* ===== Estilos compartilhados — páginas de autenticação ===== */

/* Variáveis CSS */
:root {
    --roxo-escuro: #460B8C;
    --roxo-claro: #6B21A8;
    --roxo-bem-claro: #F3F4F6;
    --verde: #3AAD6E;
    --verde-claro: #10B981;
    --branco: #FFFFFF;
    --cinza-medio: #6B7280;
    --sombra-suave: 0 4px 20px rgba(70, 11, 188, 0.08);
    --sombra-media: 0 8px 30px rgba(70, 11, 188, 0.12);
    --sombra-forte: 0 20px 60px rgba(70, 11, 188, 0.15);
    --transicao: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --raio: 16px;
    --raio-grande: 24px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--branco);
    padding: 0;
    box-shadow: var(--sombra-suave);
    z-index: 1000;
    border-bottom: 1px solid rgba(70, 11, 188, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

a.nav-brand:link,
a.nav-brand:visited,
a.nav-brand:hover,
a.nav-brand:active,
a.nav-brand:focus {
    color: inherit;
    text-decoration: none;
    opacity: 1;
}

.nav-logo {
    width: 45px;
    height: 45px;
    object-fit: contain;
    filter: none;
    opacity: 1;
}

.brand-text h1,
a.nav-brand .brand-text h1,
a.nav-brand:hover .brand-text h1 {
    color: #460B8C;
    font-family: 'Fredoka', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.5px;
}

.brand-subtitle {
    color: var(--cinza-medio);
    font-size: 0.875rem;
    font-weight: 500;
}

.btn-voltar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--roxo-bem-claro);
    color: var(--roxo-escuro);
    text-decoration: none;
    border-radius: var(--raio);
    font-weight: 600;
    transition: var(--transicao);
    border: 1px solid rgba(70, 11, 188, 0.1);
}

.btn-voltar:hover {
    background: var(--roxo-claro);
    color: var(--branco);
    transform: translateY(-2px);
    box-shadow: var(--sombra-media);
}