body {
	font-family: Arial, sans-serif;
	max-width: 95%;

	margin: 1rem auto;
}

#controls {
	margin-bottom: 0.5rem;
}
button{
	height: 40px;
	margin: 2px;
}
#header { 
	margin: 0px;
}
#header-vi {
	margin: 1px;
	font-size: 10pt;
}
#header-en {
	margin-top: 0px;
	margin-bottom: 0px;
	font-size: 10pt;
}
.chart-container {
	width: 100%;
	/* min-width: 380px; */
	min-height: 320px !important;
}

.study-basin{
	display: block;
	margin-left: auto; /* Set left margin to auto */
  margin-right: auto; /* Set right margin to auto */
	width: 100%;
	max-width: 600px;
	height: auto;
}

#chartCanvas {
	top: 0;
	left: 0;
	width: 100% !important;
	height: 100% !important;
	max-height: 550px !important;
}
.legend-wrapper {
    display: flex;
    gap: 60px;
    font-family: Arial, sans-serif;
    margin-bottom: 12px;
    font-size: 14px;
}

/* Cột chính */
.legend-main-col {
    display: flex;
    flex-direction: column;
}

.legend-main-title {
    font-weight: bold;
    font-size: 15px;
    margin-bottom: 8px;
    text-decoration: underline;
    text-align: center;
}

/* Hai cột phụ bên trong */
.legend-subgrid {
    display: grid;
    grid-template-columns: repeat(2, auto);
    gap: 20px;
}

.legend-subcol {
    display: flex;
    flex-direction: column;
}

/* Item */
.legend-item {
    display: flex;
    align-items: center;
    margin: 0px 0;
}

.box {
    width: 20px;
    height: 10px;
    margin-right: 8px;
    border: 1px solid #0002;
}

/* Past Rainfall Colors */
.c1 { background: #000000; }
.c2 { background: #3366cc; }
.c3 { background: #cc0000; }
.c4 { background: #660099; }
.c5 { background: #009933; }
.c6 { background: #000066; }
.c7 { background: #990000; }

/* Predict Rainfall Colors */
.c8  { background: #ff6666; }
.c9  { background: #ffcc33; }
.c10 { background: #33ffff; }
.c11 { background: #66ff33; }
.c12 { background: #ff9933; }
.c13 { background: #ffcccc; }
.c14 { background: #99ccff; }

/* Discharge */
.legend-discharge {
    display: flex;
    gap: 40px;
    font-family: Arial, sans-serif;
    font-size: 14px;
}

.line {
    width: 30px;
    height: 3px;
    margin-right: 6px;
}

.discharge1 { background: #cc3300; }
.discharge2 { background: #ff9900; }