@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;600;700&display=swap');

/* 1. Configuração Base e Fundo */
body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Lexend', sans-serif;
    display: flex;
    justify-content: center; /* Centraliza horizontalmente */
    align-items: center;     /* Centraliza verticalmente */
    background: radial-gradient(circle at top left, #004e92, #000428);
    overflow-x: hidden;
    color: white;
}

/* 2. Título do Topo */
#site-title {
    position: fixed;
    top: 24px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 300;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 5px;
}

/* 3. Container Principal (Glassmorphism) */
.glass-container {
    background: rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 50px 40px;
    border-radius: 32px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
    width: 100%;
    max-width: 550px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center; /* Garante que o conteúdo interno esteja no meio */
}

h1#main-title { 
    font-size: 2rem; 
    margin-bottom: 8px; 
    background: linear-gradient(to right, #fff, #00d2ff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

p#sub-title { 
    font-size: 0.95rem; 
    color: rgba(255, 255, 255, 0.6); 
    margin-bottom: 35px; 
}

/* 4. Grid de Inputs Dinâmicos */
.horizontal-grid {
    display: flex;
    gap: 15px;
    overflow-x: auto;
    padding: 10px 5px 25px;
    justify-content: center; /* Centraliza os quadrados de cálculo */
    width: 100%;
}

.column {
    display: flex;
    flex-direction: column;
    gap: 12px;
    animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 5. Caixas de Input */
.box {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 12px;
    transition: transform 0.2s;
    min-width: 100px;
}

.box:focus-within { transform: scale(1.02); }

label { 
    color: #888; 
    font-size: 0.65rem; 
    text-transform: uppercase; 
    letter-spacing: 1px;
    margin-bottom: 4px;
    display: block;
}

input {
    border: 1px solid #eee;
    border-radius: 10px;
    padding: 10px;
    width: 80px;
    font-family: 'Lexend';
    text-align: center;
    font-size: 1.1rem;
    color: #222;
    outline: none;
    transition: all 0.3s;
}

input:focus { border-color: #004e92; box-shadow: 0 0 0 3px rgba(0, 78, 146, 0.1); }

/* 6. Resultado e Botões */
.result-box {
    background: #00d2ff;
    color: #000428;
    font-weight: 700;
    font-size: 1.2rem;
    height: 45px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 210, 255, 0.3);
}

button {
    margin-top: 20px;
    padding: 16px 45px;
    font-family: 'Lexend';
    font-weight: 600;
    font-size: 1rem;
    border-radius: 16px;
    border: none;
    background: #fff;
    color: #004e92;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

button:hover {
    background: #00d2ff;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 210, 255, 0.4);
}