:root {
    --bg: #0d1a15;
    --primary: #2d5a4c;
    --white: #ffffff;
    --danger: #d93025;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body { 
    margin: 0; 
    padding: 0;
    font-family: 'Inter', sans-serif; 
    background-color: var(--bg); 
    color: var(--white);
    line-height: 1.5;
}

/* CONTAINER QUE SE ADAPTA */
.container { 
    padding: 20px; 
    width: 100%; 
    margin: 0 auto;
    transition: all 0.3s ease;
}

/* --- ESTILO PARA COMPUTADOR (TELAS GRANDES) --- */
@media (min-width: 1024px) {
    .container {
        max-width: 95%; /* Ocupa quase a tela toda no PC */
        padding: 40px;
    }

    .grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr); /* 4 colunas largas no PC */
        gap: 25px;
    }

    .card-full { grid-column: span 4; } /* Banner da Finnia ocupa tudo */
    .card-half { grid-column: span 2; } /* Gráficos ocupam metade */

    /* Menu lateral no PC (Opcional) ou pílula elegante */
    .bottom-nav {
        width: 500px;
        left: 50%;
        transform: translateX(-50%);
        bottom: 30px;
        border-radius: 100px;
        padding: 15px 30px;
        border: 1px solid rgba(255,255,255,0.2);
    }
}

/* --- ESTILO PARA CELULAR (TELAS PEQUENAS) --- */
@media (max-width: 1023px) {
    body { padding-bottom: 90px; } /* Espaço para o menu no celular */
    
    .container { max-width: 100%; }

    .grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr); /* 2 colunas no celular */
        gap: 15px;
    }

    .card-full, .card-half { grid-column: span 2; } /* Tudo empilha no celular */
}

/* ELEMENTOS VISUAIS */
.card { 
    background: var(--white); 
    border-radius: 30px; 
    padding: 25px; 
    color: #1a1c1e; 
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
    height: 100%; /* Garante que os cards na mesma linha tenham o mesmo tamanho */
}

.btn-main {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 20px;
    border-radius: 20px;
    border: none;
    font-weight: 800;
    text-decoration: none;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s;
}

.btn-main:active { transform: scale(0.98); }

.bottom-nav { 
    position: fixed; 
    bottom: 0; 
    left: 0; 
    width: 100%; 
    background: rgba(13, 26, 21, 0.95); 
    backdrop-filter: blur(20px); 
    border-top: 1px solid rgba(255,255,255,0.1); 
    display: flex; 
    justify-content: space-around; 
    padding: 15px 0; 
    z-index: 1000;
}

.nav-item { color: rgba(255,255,255,0.4); text-decoration: none; text-align: center; }
.nav-item.active { color: white; }
.nav-item i { font-size: 22px; }
.nav-item span { display: block; font-size: 10px; margin-top: 5px; font-weight: 700; }

input { 
    width: 100%; 
    padding: 18px; 
    margin-bottom: 15px; 
    border-radius: 15px; 
    border: 1px solid #eee; 
    font-size: 16px; 
    background: #f9f9f9;
}