:root {
    --primary-color: #2196F3;
    --secondary-color: #03A9F4;
    --background-color: #f5f6fa;
    --card-background: #ffffff;
    --text-color: #2c3e50;
    --border-radius: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Tema Claro */
.light-theme {
    background-color: var(--background-color);
    color: var(--text-color);
}

.light-theme .card {
    background-color: var(--card-background);
    box-shadow: var(--shadow);
}

/* Tema Escuro */
.dark-theme {
    background-color: #282b30;
    color: #ffffff;
}

.dark-theme .card {
    background-color: #1e2124;
    box-shadow: var(--shadow);
}

.dark-theme .card-title,
.dark-theme .big-value {
    color: #ffffff;
}

.dark-theme .text-muted {
    color: #a0a0a0 !important;
}

.dark-theme .btn-outline-primary {
    color: #ffffff;
    border-color: #ffffff;
}

.dark-theme .btn-outline-primary:hover {
    background-color: #ffffff;
    color: #282b30;
}

/* Estilos Gerais */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    line-height: 1.6;
}

.header-container {
    position: relative;
    margin-bottom: 2rem;
}

.theme-toggle {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.5rem 1rem;
    font-size: 1.2rem;
}

.main-title {
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.card {
    border: none;
    border-radius: var(--border-radius);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-height: 300px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.card-title {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.card-title i {
    font-size: 1.4rem;
    margin-right: 0.5rem;
}

.value-container {
    text-align: center;
    padding: 2rem 0;
}

.big-value {
    font-size: 3.5rem;
    font-weight: bold;
    color: var(--text-color);
}

.unit {
    font-size: 1.4rem;
    color: #666;
    margin-left: 0.5rem;
}

.status-card {
    text-align: center;
}

.status-icon {
    font-size: 3.5rem;
    margin: 1.5rem 0;
    color: var(--primary-color);
}

/* Rosa dos Ventos */
.wind-rose {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 220px;
    position: relative;
}

.compass {
    width: 180px;
    height: 180px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.direction {
    position: absolute;
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--primary-color);
}

.arrow {
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-bottom: 70px solid var(--primary-color);
    position: absolute;
    transform-origin: center bottom;
    transition: transform 0.5s ease;
}

/* Animações */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.pulse {
    animation: pulse 0.5s ease-in-out;
}

/* Controles dos Cards */
.card-controls {
    display: flex;
    gap: 0.5rem;
}

.card-controls .btn-link {
    color: #b4bcb5;
    padding: 0;
    font-size: 1.2rem;
}

.card-controls .btn-link:hover {
    color: #8a908b;
}

/* Responsividade */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .main-title {
        font-size: 2rem;
    }

    .theme-toggle {
        position: static;
        margin-top: 1rem;
    }

    .big-value {
        font-size: 3rem;
    }

    .status-icon {
        font-size: 3.5rem;
    }

    .wind-rose {
        height: 180px;
    }

    .compass {
        width: 150px;
        height: 150px;
    }
}

/* Gráfico */
#mainChart {
    width: 100%;
    height: 400px;
}

/* Botões de Período */
.btn-group .btn {
    padding: 0.5rem 1rem;
}

.btn-group .btn.active {
    background-color: var(--primary-color);
    color: white;
}

/* Última Atualização */
.last-update {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 1rem;
}

/* Card Fixo */
.card.locked {
    cursor: default;
}

.card.locked:hover {
    transform: none;
    box-shadow: var(--shadow);
}

.card.locked .move-card {
    display: none;
}

/* Card em Movimento */
.card-ghost {
    opacity: 0.5;
    background: #f0f0f0;
}

/* Footer */
footer {
    color: var(--text-color);
    padding: 2rem 0;
}

footer p {
    margin-bottom: 0.5rem;
}

footer .small {
    font-size: 0.9rem;
    color: #666;
}

.status-card .big-value {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--text-color);
}