/* PROJECT AMBIENTAL - LOGIN DESIGN SYSTEM 2026 
   Foco: Imersão, Performance e Eliminação de Artefactos Visuais
*/

:root {
    --env-dark: #064e3b;
    --env-mid: #059669;
    --env-accent: #10b981;
    --glass-bg: rgba(255, 255, 255, 0.88);
    --text-main: #1e293b;
}

/* 1. RESET INTEGRAL PARA ELIMINAR LINHAS BRANCAS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden; /* Impede scroll causado pelas partículas */
    background-color: var(--env-dark); /* Cor de fundo idêntica ao início do gradiente */
    font-family: 'Inter', -apple-system, sans-serif;
}

/* 2. VIEWPORT E FUNDO DINÂMICO */
.login-viewport {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #064e3b 0%, #065f46 100%);
}

.bg-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    perspective: 1000px; /* Adiciona profundidade para a rotação das folhas */
}

/* Transformando a bolinha em Folha */
.particle {
    position: absolute;
    background: linear-gradient(135deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0.1) 100%);
    /* Formato de folha usando border-radius assimétrico */
    border-radius: 2px 50% 2px 50%; 
    pointer-events: none;
    box-shadow: inset 1px 1px 2px rgba(255,255,255,0.2);
}

/* 3. CARD COM TÉCNICA ANTI-LINHA BRANCA */
.login-card {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 400px;
    padding: 3rem 2.5rem;
    background: var(--glass-bg);
    
    /* Efeito de Vidro */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    
    border-radius: 28px;
    
    /* TRUQUE: Borda semi-transparente + Shadow de 1px para selar cantos */
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.05), 
                0 20px 50px rgba(0, 0, 0, 0.3);
    
    /* Garante que o fundo não vaze além do arredondamento */
    background-clip: padding-box;
    
    animation: cardEntrance 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* 4. TIPOGRAFIA E CABEÇALHO */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--env-mid);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.login-header h2 {
    margin-top: 1rem;
    color: var(--env-dark);
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: -1px;
}

.login-header p {
    color: #64748b;
    font-size: 0.85rem;
    margin-top: 5px;
}

/* 5. FORMULÁRIO E INPUTS */
.input-group {
    margin-bottom: 1.25rem;
}

.input-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--env-dark);
    margin-bottom: 6px;
    text-transform: uppercase;
    opacity: 0.8;
}

.input-field {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.input-field:focus {
    outline: none;
    border-color: var(--env-accent);
    background: white;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15);
    transform: translateY(-1px);
}

/* 6. BOTÃO DE ACÇÃO */
.btn-login {
    width: 100%;
    padding: 16px;
    margin-top: 1rem;
    background: var(--env-dark);
    color: white;
    border: none;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-login:hover {
    background: var(--env-mid);
    box-shadow: 0 10px 20px rgba(5, 150, 105, 0.3);
    transform: translateY(-2px);
}

.btn-login:active {
    transform: translateY(0);
}

/* 7. ANIMAÇÕES */
@keyframes floatVertical {
    0% { 
        transform: translateY(110vh) translateX(0) rotate(0deg) rotateY(0deg); 
        opacity: 0; 
    }
    10% { opacity: 0.6; }
    50% {
        /* Oscilação lateral para parecer queda de folha */
        transform: translateY(50vh) translateX(40px) rotate(180deg) rotateY(45deg);
    }
    90% { opacity: 0.6; }
    100% { 
        transform: translateY(-20vh) translateX(-20px) rotate(360deg) rotateY(0deg); 
        opacity: 0; 
    }
}
@keyframes cardEntrance {
    from { 
        opacity: 0; 
        transform: scale(0.95) translateY(30px); 
    }
    to { 
        opacity: 1; 
        transform: scale(1) translateY(0); 
    }
}

/* Ocultar barra de scroll para navegadores antigos */
::-webkit-scrollbar {
    display: none;
}