body.modal-open {
	overflow: hidden;
}

.modal {
	position: fixed;
	top: 0;
	left: 0;
	width: 100vw;
	height: 100vh;
	display: none;
	align-items: center;
	justify-content: center;
	padding: 24px;
	z-index: 200;
}

.modal.is-open {
	display: flex;
}

.modal__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(3, 9, 24, 0.68);
	backdrop-filter: blur(6px);
}

.modal__panel {
	position: relative;
	background: rgba(10, 17, 35, 0.96);
	border-radius: 24px;
	border: 1px solid rgba(65, 104, 200, 0.35);
	box-shadow: 0 40px 90px rgba(2, 7, 20, 0.65);
	width: min(520px, calc(100% - 32px));
	max-width: 520px;
	height: min(600px, calc(100vh - 48px));
	max-height: 600px;
	padding: 32px;
	overflow: hidden;
	color: #f3f6ff;
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.modal__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	position: sticky;
	top: 0;
	background: inherit;
	border-bottom: 1px solid rgba(65, 104, 200, 0.3);
	z-index: 2;
}

.modal__close {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	border: 1px solid rgba(135, 162, 255, 0.35);
	background: rgba(30, 51, 107, 0.55);
	color: #fff;
	font-size: 20px;
	line-height: 1;
	cursor: pointer;
}

.modal__close:hover {
	background: rgba(79, 129, 255, 0.4);
}

.modal__form {
	display: flex;
	flex-direction: column;
	flex: 1;
	overflow-y: auto;
	padding-right: 6px;
	gap: 18px;
}

.modal__section {
	display: flex;
	flex-direction: column;
	gap: 18px;
	margin-top: 8px;
}

.serial-grid {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.serial-grid__row {
	display: flex;
	gap: 12px;
	flex-wrap: wrap;
}

.serial-grid__row > * {
	flex: 1 1 200px;
	min-width: 0;
}

.serial-grid__unit-field {
	display: flex;
	align-items: center;
	gap: 8px;
	flex: 1 1 160px;
}

.serial-grid__unit-field select {
	min-width: 0;
}

.serial-grid__unit {
	font-size: 14px;
	color: rgba(208, 220, 255, 0.8);
	white-space: nowrap;
}

.serial-grid input,
.serial-grid select {
	width: 100%;
	min-height: 44px;
	border-radius: 12px;
	border: 1px solid rgba(98, 130, 210, 0.35);
	background: rgba(9, 15, 33, 0.9);
	color: #f3f6ff;
	padding: 10px 14px;
	font-size: 15px;
}

.serial-grid input:focus,
.serial-grid select:focus {
	outline: none;
	border-color: rgba(126, 181, 255, 0.9);
	box-shadow: 0 0 0 3px rgba(64, 111, 255, 0.28);
}

.serial-grid__empty {
	font-size: 13px;
	color: rgba(208, 220, 255, 0.6);
}

.status-steps {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.status-step {
	border: 1px dashed rgba(106, 139, 214, 0.4);
	padding: 8px 12px;
	border-radius: 12px;
	background: rgba(13, 22, 48, 0.8);
	color: #dfe7ff;
	font-size: 12px;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	cursor: pointer;
	transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.status-step.is-active {
	border-style: solid;
	border-color: rgba(99, 164, 255, 0.9);
	background: rgba(79, 129, 255, 0.2);
	color: #fff;
}

.status-step.is-completed:not(.is-active) {
	border-style: solid;
	border-color: rgba(91, 196, 182, 0.6);
	background: rgba(46, 140, 119, 0.2);
}

.status-delay {
	margin-top: 8px;
	align-self: flex-start;
	padding: 6px 16px;
	border-radius: 20px;
	/* use requested colors */
	background: #fd7f7f;
	border: 1px solid rgba(165, 0, 0, 0.12);
	color: #a50000;
	font-size: 12px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	cursor: pointer;
}

.status-delay.is-active {
	/* slightly stronger appearance when active */
	background: #f65e5e;
	border-color: #a50000;
	color: #a50000;
}

.history-log {
	border: 1px solid rgba(65, 104, 200, 0.25);
	border-radius: 16px;
	padding: 12px;
	background: rgba(7, 12, 30, 0.6);
	max-height: 500px;
	overflow-y: auto;
	display: flex;
	flex-direction: column;
	gap: 10px;
	overscroll-behavior: contain;
	-webkit-overflow-scrolling: touch;
}

.history-log__item {
	display: flex;
	flex-direction: column;
	gap: 2px;
	padding-bottom: 8px;
	border-bottom: 1px dashed rgba(89, 120, 200, 0.25);
}

.history-log__item:last-child {
	border-bottom: none;
	padding-bottom: 0;
}

.history-log__status {
	font-size: 13px;
	font-weight: 600;
	color: #f6f8ff;
}

.history-log__meta {
	font-size: 12px;
	color: rgba(209, 220, 255, 0.72);
}

.history-log__empty {
	font-size: 13px;
	color: rgba(208, 220, 255, 0.6);
}

.modal__field {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.modal__form.is-validated .modal__field:has(:invalid)::after {
	content: "* Đây trường bắt buộc";
	color: #ffb6b6;
	font-size: 12px;
	margin-top: -4px;
	padding-left: 2px;
	letter-spacing: 0.01em;
	display: inline-block;
}

.modal__form.is-validated .modal__field :is(input, select):invalid,
.modal__form.is-validated .serial-grid :is(input, select):invalid {
	border-color: rgba(255, 114, 74, 0.9);
	box-shadow: 0 0 0 2px rgba(255, 114, 74, 0.25);
}

.modal__field label {
	font-size: 13px;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: rgba(208, 220, 255, 0.85);
}

.modal__field input,
.modal__field select {
	width: 100%;
	min-height: 44px;
	border-radius: 12px;
	border: 1px solid rgba(98, 130, 210, 0.35);
	background: rgba(9, 15, 33, 0.9);
	color: #f3f6ff;
	padding: 10px 14px;
	font-size: 15px;
}

.modal__field input:focus,
.modal__field select:focus {
	outline: none;
	border-color: rgba(126, 181, 255, 0.9);
	box-shadow: 0 0 0 3px rgba(64, 111, 255, 0.28);
}

.modal__footer {
	display: flex;
	flex-direction: column;
	gap: 16px;
	padding-top: 16px;
	border-top: 1px solid rgba(65, 104, 200, 0.25);
	position: sticky;
	bottom: 0;
	background: inherit;
	z-index: 2;
}

.modal__actions {
	display: flex;
	justify-content: flex-end;
	gap: 12px;
}

.serial-grid--readonly input,
.serial-grid--readonly select {
	background: rgba(9, 15, 33, 0.5);
	border-color: rgba(98, 130, 210, 0.35);
	cursor: default;
}

.serial-grid--readonly input {
	color: rgba(243, 246, 255, 0.85);
}

.serial-grid--readonly select {
	pointer-events: none;
	color: rgba(243, 246, 255, 0.9);
}

.serial-grid--readonly .serial-grid__unit {
	color: rgba(208, 220, 255, 0.65);
}

@media (max-width: 640px) {
	.modal__panel {
		padding: 24px;
		height: min(600px, calc(100vh - 32px));
	}

	.modal__actions {
		flex-wrap: wrap;
		justify-content: flex-start;
	}
}