:root {
    --verde: #3f6b52;
    --verde-claro: #5c9a72;
    --verde-bg: #f4faf6;
    --azul: #3a7ca5;
    --texto: #2c3b33;
    --texto-suave: #6b8577;
    --borda: #dfe9e2;
    --branco: #ffffff;
    --alerta: #c0553d;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--verde-bg);
    color: var(--texto);
}

.topo {
    background: var(--verde);
    color: #fff;
    padding: 18px 24px;
}
.topo h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
}
.topo p {
    margin: 4px 0 0;
    font-size: 13px;
    opacity: 0.85;
}

main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 16px 60px;
}

.card {
    background: var(--branco);
    border: 1px solid var(--borda);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.painel-sistema {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
}
.painel-sistema svg {
    display: block;
    width: 100%;
    height: auto;
}

.ilustracao-sistema .buraco {
    fill: #3f6b52;
}
.ilustracao-sistema .caule {
    stroke: #7a5c3a;
    stroke-width: 3;
    stroke-linecap: round;
}
.ilustracao-sistema .folha {
    fill: var(--cor-muda, #5c9a72);
    transition: fill 0.8s ease;
}

.ilustracao-sistema .fluxo-agua {
    stroke: #bfe3f0;
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dasharray: 10 14;
    opacity: 0;
    transition: opacity 0.4s ease;
}
.ilustracao-sistema.bomba-ligada .fluxo-agua {
    opacity: 1;
    animation: fluir-agua 0.8s linear infinite;
}
@keyframes fluir-agua {
    to { stroke-dashoffset: -48; }
}

.ilustracao-sistema .haste-gotejador {
    fill: #6b6b66;
}
.ilustracao-sistema .gota-gotejador {
    fill: var(--azul);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.ilustracao-sistema.bomba-ligada .gota-gotejador {
    opacity: 1;
}

.ilustracao-sistema .mangueira-corpo {
    stroke: #55605a;
    stroke-width: 9;
    stroke-linecap: round;
    fill: none;
}
.ilustracao-sistema .mangueira-brilho {
    stroke: #838d86;
    stroke-width: 2.5;
    stroke-linecap: round;
    fill: none;
    opacity: 0.7;
}
.ilustracao-sistema .fluxo-mangueira {
    stroke: #bfe3f0;
    stroke-width: 3.5;
    stroke-linecap: round;
    stroke-dasharray: 6 9;
    fill: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}
.ilustracao-sistema.bomba-ligada .fluxo-mangueira {
    opacity: 1;
    animation: fluir-agua 0.8s linear infinite;
}

.ilustracao-sistema .icone-umidade path {
    fill: var(--azul);
}
.ilustracao-sistema .icone-umidade .rotulo-icone {
    font-size: 9px;
    fill: #fff;
    font-family: Arial, sans-serif;
}

.ilustracao-sistema .icone-termometro rect:first-child {
    fill: #f4faf6;
    stroke: var(--texto-suave);
    stroke-width: 1;
}
.ilustracao-sistema .icone-termometro circle,
.ilustracao-sistema .icone-termometro .mercurio {
    fill: var(--alerta);
}

.ilustracao-sistema .texto-sensor {
    font-size: 13px;
    font-weight: bold;
    fill: var(--verde);
    font-family: Arial, sans-serif;
}
.ilustracao-sistema .texto-sensor.indisponivel {
    fill: var(--texto-suave);
    font-weight: normal;
    font-size: 11px;
}

.ilustracao-sistema .reservatorio-vazio {
    fill: var(--borda);
}
.ilustracao-sistema .reservatorio-agua {
    fill: var(--azul);
    opacity: 0.85;
    transition: y 0.6s ease, height 0.6s ease;
}
.ilustracao-sistema .reservatorio-corpo {
    fill: none;
    stroke: var(--verde);
    stroke-width: 2;
}
.ilustracao-sistema .reservatorio-tampa {
    fill: var(--texto);
    opacity: 0.85;
}

.ilustracao-sistema .chip-bomba-svg rect {
    fill: rgba(255,255,255,0.92);
    stroke: var(--borda);
    stroke-width: 1;
}
.ilustracao-sistema .chip-bomba-svg .valor-bomba {
    font-size: 15px;
    font-weight: bold;
    fill: var(--texto-suave);
    font-family: Arial, sans-serif;
}
.ilustracao-sistema .chip-bomba-svg .rotulo-bomba {
    font-size: 9px;
    fill: var(--texto-suave);
    text-transform: uppercase;
    font-family: Arial, sans-serif;
}
.ilustracao-sistema.bomba-ligada .chip-bomba-svg .valor-bomba {
    fill: var(--azul);
}

.legenda-ilustracao {
    text-align: center;
    font-size: 11px;
    color: var(--texto-suave);
    padding: 6px 0 0;
}

.overlay-dados {
    position: absolute;
    bottom: 12px;
    left: 12px;
    right: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.stat-chip {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(2px);
    border-radius: 10px;
    padding: 8px 14px;
    min-width: 92px;
    text-align: center;
    box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.stat-chip .valor {
    font-size: 18px;
    font-weight: 700;
    color: var(--verde);
    line-height: 1.2;
}
.stat-chip .valor.indisponivel {
    color: var(--texto-suave);
    font-size: 13px;
    font-weight: 500;
}
.stat-chip .rotulo {
    font-size: 11px;
    color: var(--texto-suave);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
@media (max-width: 640px) {
    .overlay-dados {
        position: static;
        margin-top: 10px;
    }
    .stat-chip {
        min-width: 0;
        flex: 1 1 calc(33.333% - 8px);
        padding: 6px 8px;
    }
    .stat-chip .valor {
        font-size: 15px;
    }
    .stat-chip .rotulo {
        font-size: 9px;
    }
}

.atualizado-em {
    text-align: center;
    font-size: 12px;
    color: var(--texto-suave);
    margin-top: 10px;
}

.graficos-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 8px;
}
.graficos-header h2 {
    font-size: 17px;
    margin: 0;
}

.periodo-seletor button {
    background: var(--branco);
    border: 1px solid var(--borda);
    color: var(--texto-suave);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    margin-left: 6px;
}
.periodo-seletor button.ativo {
    background: var(--verde);
    color: #fff;
    border-color: var(--verde);
}

.grid-graficos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
}
.grafico-box h3 {
    font-size: 14px;
    margin: 0 0 8px;
    color: var(--texto);
}
.grafico-box canvas {
    width: 100% !important;
    height: 220px !important;
}
.grafico-box.sem-dados {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--texto-suave);
    font-size: 13px;
    height: 220px;
    border: 1px dashed var(--borda);
    border-radius: 8px;
}

footer {
    text-align: center;
    font-size: 12px;
    color: var(--texto-suave);
    padding: 20px 0 40px;
}