/* ==========================================================
   Komposter Dashboard — styles
   Disesuaikan dengan design.md (identitas visual UPT K3L UNDIP)
   ========================================================== */

.kd-dashboard-root {
	/* ---- Design tokens (dari design.md §2, §15, §16, §17) ---- */
	--primary-navy: #05055f;
	--primary-navy-strong: #08085f;
	--card-blue: #303276;
	--hover-blue: #0a0a73;
	--kd-white: #ffffff;
	--light-gray: #f5f5f5;
	--gray: #666666;
	--border-gray: #e0e0e0;
	--accent-green: #20b84b;
	--accent-red: #d64545;

	--radius-card: 20px;   /* large cards: 18-24px */
	--radius-badge: 999px; /* badge: pill */
	--radius-button: 10px; /* buttons: 8-12px */

	--shadow-default: 0 4px 16px rgba(0, 0, 0, 0.08);
	--shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.14);

	--space-1: 8px;
	--space-2: 16px;
	--space-3: 24px;
	--space-4: 32px;
	--space-5: 48px;
	--space-6: 64px;

	--font-heading: 'Poppins', Helvetica, Arial, sans-serif;
	--font-body: 'Poppins', Helvetica, Arial, sans-serif;

	font-family: var(--font-body);
	color: var(--gray);
	max-width: 1200px;
	margin: 0 auto;
}

.kd-dashboard-root * {
	box-sizing: border-box;
}

.kd-dashboard-root h1,
.kd-dashboard-root h2,
.kd-dashboard-root .Date {
	font-family: var(--font-heading);
	color: var(--primary-navy);
}

@media (prefers-reduced-motion: reduce) {
	.kd-dashboard-root * {
		transition: none !important;
	}
}

.dashboard {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
	padding: var(--space-2) 0;
}

/* ---- Loading / error / empty states ---- */

.loading-state,
.error-state,
.empty-state {
	background: var(--kd-white);
	border: 1px solid var(--border-gray);
	border-radius: var(--radius-card);
	box-shadow: var(--shadow-default);
	padding: var(--space-5) var(--space-3);
	text-align: center;
}

.loading-state h2,
.error-state h2,
.empty-state h2 {
	margin: 0 0 var(--space-1);
	font-size: 22px;
}

.loading-state p,
.error-state p,
.empty-state p {
	margin: 0;
	color: var(--gray);
	font-size: 16px;
}

.error-state h2 {
	color: var(--accent-red);
}

/* ---- Header ---- */

.dashboard-header {
	background: var(--primary-navy);
	border-radius: var(--radius-card);
	padding: var(--space-3);
}

.header-top {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-2);
	flex-wrap: wrap;
}

.dashboard-header h1 {
	margin: 0 0 4px;
	font-size: 32px;
	color: var(--kd-white);
}

.dashboard-header .header-top > div > p {
	margin: 0;
	color: rgba(255, 255, 255, 0.72);
	font-size: 16px;
	font-family: var(--font-body);
}

.esp32-status {
	display: flex;
	align-items: center;
	gap: var(--space-1);
	padding: 8px 18px;
	border-radius: var(--radius-badge);
	font-size: 14px;
	font-weight: 600;
	font-family: var(--font-body);
	background: rgba(255, 255, 255, 0.1);
	color: rgba(255, 255, 255, 0.85);
	transition: background-color 250ms ease, color 250ms ease;
}

.esp32-status-dot {
	width: 9px;
	height: 9px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.5);
	display: inline-block;
}

.esp32-status.online {
	background: rgba(32, 184, 75, 0.18);
	color: var(--accent-green);
}

.esp32-status.online .esp32-status-dot {
	background: var(--accent-green);
	box-shadow: 0 0 0 4px rgba(32, 184, 75, 0.22);
}

.esp32-status.offline {
	background: rgba(214, 69, 69, 0.16);
	color: #ff8b8b;
}

.esp32-status.offline .esp32-status-dot {
	background: var(--accent-red);
}

/* ---- Date navigation ---- */

.date-navigation {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-3);
}

.date-navigation .Date {
	margin: 0;
	font-size: 20px;
	font-weight: 400;
	min-width: 240px;
	text-align: center;
}

.date-arrow {
	width: 44px;   /* min. 44px touch target — §14 mobile */
	height: 44px;
	border-radius: 50%;
	border: 1px solid var(--border-gray);
	background: var(--kd-white);
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: background-color 250ms ease, border-color 250ms ease;
}

.date-arrow:hover:not(:disabled) {
	background: var(--light-gray);
	border-color: var(--primary-navy);
}

.date-arrow:focus-visible {
	outline: 2px solid var(--primary-navy);
	outline-offset: 2px;
}

.date-arrow:disabled {
	opacity: 0.35;
	cursor: not-allowed;
}

.date-arrow svg {
	width: 18px;
	height: 18px;
	fill: none;
	stroke: var(--primary-navy);
	stroke-width: 2;
	stroke-linecap: round;
	stroke-linejoin: round;
}

/* ---- Chart card (pola "News Card Style" §7) ---- */

.chart-card {
	background: var(--kd-white);
	border-radius: var(--radius-card);
	box-shadow: var(--shadow-default);
	padding: var(--space-3);
	overflow: hidden;
}

.chart-header h2 {
	margin: 0 0 4px;
	font-size: 24px;
}

.chart-header p {
	margin: 0 0 var(--space-2);
	color: var(--gray);
	font-size: 15px;
	font-family: var(--font-body);
}

.chart-container {
	position: relative;
	width: 100%;
	height: 300px;
}

/* ---- Sensor grid / gauge cards (pola "Category Card" §6, §19) ---- */

.sensor-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: var(--space-3);
}

.sensor-card {
	background: var(--card-blue);
	border-radius: var(--radius-card);
	box-shadow: var(--shadow-default);
	padding: var(--space-3);
	text-align: center;
	cursor: default;
	transition:
		transform 300ms ease,
		background-color 300ms ease,
		box-shadow 300ms ease;
}

.sensor-card:hover {
	background: var(--hover-blue);
	transform: translateY(-6px) scale(1.02);
	box-shadow: var(--shadow-hover);
}

.sensor-card .card-header h2 {
	margin: 0 0 2px;
	font-size: 20px;
	color: var(--kd-white);
	font-family: var(--font-body);
	font-weight: 700;
}

.sensor-card .card-header p {
	margin: 0 0 var(--space-1);
	color: rgba(255, 255, 255, 0.65);
	font-size: 14px;
	font-family: var(--font-body);
}

.gauge-container {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--space-1);
}

.gauge {
	position: relative;
	width: 180px;
	height: 180px;
}

.gauge svg {
	width: 100%;
	height: 100%;
	transform: rotate(135deg);
}

.gauge-background {
	fill: none;
	stroke: rgba(255, 255, 255, 0.15);
	stroke-width: 14;
	stroke-linecap: round;
}

.gauge-progress {
	fill: none;
	stroke: var(--kd-white);
	stroke-width: 14;
	stroke-linecap: round;
	transition: stroke-dasharray 0.5s ease;
}

.gauge-content {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
}

.gauge-value {
	font-family: var(--font-heading);
	font-size: 34px;
	font-weight: 700;
	line-height: 1;
	color: var(--kd-white);
}

.gauge-unit {
	font-size: 13px;
	color: rgba(255, 255, 255, 0.65);
	margin-top: 4px;
	font-family: var(--font-body);
}

.gauge-range {
	display: flex;
	justify-content: space-between;
	width: 100%;
	max-width: 180px;
	font-size: 12px;
	color: rgba(255, 255, 255, 0.55);
	font-family: var(--font-body);
}

.raw-adc {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 12px;
	color: rgba(255, 255, 255, 0.55);
	font-family: var(--font-body);
}

.raw-adc strong {
	color: var(--kd-white);
}

.sensor-status {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-1);
	margin-top: var(--space-2);
	padding-top: var(--space-2);
	border-top: 1px solid rgba(255, 255, 255, 0.15);
	font-size: 14px;
	color: rgba(255, 255, 255, 0.85);
	font-family: var(--font-body);
}

.status-dot {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--accent-green);
	flex-shrink: 0;
}

/* ---- Last update ---- */

.last-update {
	text-align: center;
	font-size: 14px;
	color: var(--gray);
	margin: 0;
	font-family: var(--font-body);
}

/* ---- Responsive (§14) ---- */

@media (max-width: 1199px) {
	.kd-dashboard-root {
		--radius-card: 18px;
	}
}

@media (max-width: 767px) {
	.dashboard {
		gap: var(--space-2);
		padding: var(--space-1) var(--space-1);
	}

	.dashboard-header,
	.chart-card,
	.sensor-card,
	.loading-state,
	.error-state,
	.empty-state {
		padding: var(--space-2);
	}

	.dashboard-header h1 {
		font-size: 24px;
	}

	.header-top {
		flex-direction: column;
		align-items: flex-start;
		gap: var(--space-1);
	}

	.date-navigation .Date {
		min-width: 0;
		font-size: 15px;
	}

	.sensor-grid {
		grid-template-columns: 1fr;
	}

	.gauge {
		width: 160px;
		height: 160px;
	}
}