/* ==========================================================================
   Pickle — giao diện các trang công cụ (bấm điểm, sơ đồ sân, từ điển, câu đố luật, lộ trình, chọn vợt, xếp cặp, buổi tập,
   5 buổi tập đầu tiên).
   Chỉ nạp trên trang công cụ. Dùng lại biến màu, chữ, khoảng cách ở :root trong main.css.
   ========================================================================== */

/* 1. Phần đầu trang công cụ
   ========================================================================== */
.tool-header {
	margin-bottom: var(--space-4);
}

.tool-header__lead {
	margin-bottom: var(--space-2);
	color: var(--color-text-muted);
	font-size: var(--fs-lead);
}

.tool-header__rules {
	display: inline-flex;
	align-items: center;
	gap: var(--space-1);
	margin: 0;
	padding: 4px var(--space-2);
	background: var(--color-accent-soft);
	border: 1px solid #E3F38F;
	border-radius: var(--radius-pill);
	color: var(--color-primary-dark);
	font-size: var(--fs-sm);
	font-weight: var(--fw-semibold);
}

.tool-header__rules .icon {
	width: 18px;
	height: 18px;
}

.tool-header__rules a {
	color: var(--color-primary-dark);
	font-weight: var(--fw-bold);
}

.tool-header__content {
	margin-bottom: var(--space-4);
}

.tool-block {
	margin-bottom: var(--space-6);
}

/* Khối công cụ nằm sau phần hướng dẫn (Luyện gọi điểm): cách ra như giữa hai khối */
.entry-content + .tool-block {
	margin-top: var(--space-6);
}

.tool-block__title {
	margin-bottom: var(--space-2);
}

.tool-note,
.tool-source {
	margin: var(--space-2) 0 0;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.button:disabled {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none;
	box-shadow: none;
}

/* 2. Bấm điểm
   ========================================================================== */
.score-keeper {
	display: grid;
	gap: var(--space-2);
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.score-call {
	padding: var(--space-2);
	background: var(--color-text);
	border-radius: var(--radius-sm);
	color: #FFFFFF;
	text-align: center;
}

.score-call__label {
	margin: 0;
	color: var(--color-footer-text);
	font-size: var(--fs-xs);
	font-weight: var(--fw-bold);
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.score-call__value {
	margin: 0;
	color: var(--color-accent);
	font-size: clamp(3rem, 15vw, 5rem);
	font-weight: var(--fw-extrabold);
	font-variant-numeric: tabular-nums;
	letter-spacing: -0.02em;
	line-height: 1.1;
}

.score-call__value:focus {
	outline: none;
}

.score-call__detail {
	margin: 0;
	color: #E7F1EC;
	font-size: var(--fs-sm);
}

.score-call__badge {
	display: inline-block;
	margin: var(--space-1) 0 0;
	padding: 2px var(--space-2);
	background: var(--color-accent);
	border-radius: var(--radius-pill);
	color: var(--color-primary-dark);
	font-size: var(--fs-xs);
	font-weight: var(--fw-bold);
}

.score-court {
	display: block;
	width: 100%;
	max-width: 360px;
	height: auto;
	margin: 0 auto;
}

.score-court__surface {
	fill: var(--color-primary);
}

.score-court__kitchen {
	fill: #1A8F6A;
}

.score-court__box {
	fill: transparent;
	transition: fill var(--transition);
}

.score-court__box.is-server {
	fill: var(--color-accent);
}

.score-court__box.is-target {
	fill: rgba(212, 242, 59, 0.25);
	stroke: var(--color-accent);
	stroke-width: 2;
	stroke-dasharray: 4 3;
}

.score-court__lines {
	fill: none;
	stroke: #FFFFFF;
	stroke-width: 1.5;
}

.score-court__net {
	stroke: var(--color-text);
	stroke-width: 3;
	stroke-linecap: round;
}

.score-teams {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: var(--space-1);
}

.score-teams.is-swapped .score-team[data-team="0"] {
	order: 2;
}

.score-team {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 4px;
	min-height: 160px;
	padding: var(--space-2) var(--space-1);
	background: var(--color-bg);
	border: 2px solid var(--color-border);
	border-radius: var(--radius);
	color: var(--color-text);
	font: inherit;
	text-align: center;
	cursor: pointer;
	touch-action: manipulation;
	transition: background-color var(--transition), border-color var(--transition), transform var(--transition);
}

.score-team:active {
	transform: scale(0.98);
	transition-duration: var(--duration-press);
}

@media (hover: hover) {
	.score-team:hover {
		border-color: var(--color-primary);
	}
}

.score-team.is-serving {
	background: var(--color-accent-soft);
	border-color: var(--color-primary);
}

.score-team.is-winner {
	background: var(--color-accent);
	border-color: var(--color-primary-dark);
}

.score-team:disabled {
	cursor: default;
	transform: none;
}

.score-team:disabled:not(.is-winner) {
	opacity: 0.6;
}

.score-team__name {
	max-width: 100%;
	font-weight: var(--fw-bold);
	overflow-wrap: anywhere;
}

.score-team__points {
	color: var(--color-primary);
	font-size: 3rem;
	font-weight: var(--fw-extrabold);
	font-variant-numeric: tabular-nums;
	line-height: 1;
}

.score-team__serve {
	min-height: 1.4em;
	color: var(--color-primary-dark);
	font-size: var(--fs-xs);
	font-weight: var(--fw-bold);
}

.score-team__hint {
	color: var(--color-text-muted);
	font-size: var(--fs-xs);
	line-height: 1.4;
}

.score-actions {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--space-1);
}

.score-actions .button {
	min-height: 48px;
	padding-inline: var(--space-1);
	font-size: var(--fs-sm);
	white-space: nowrap;
}

/* Màn hẹp: bỏ biểu tượng để chữ trên nút không xuống dòng */
@media (max-width: 479px) {
	.score-actions .button .icon {
		display: none;
	}
}

.score-options {
	display: flex;
	flex-wrap: wrap;
	gap: 0 var(--space-3);
}

.toggle,
.choice {
	display: inline-flex;
	align-items: center;
	gap: var(--space-1);
	min-height: var(--tap);
	cursor: pointer;
}

.toggle {
	font-weight: var(--fw-semibold);
}

.toggle input,
.choice input {
	width: 22px;
	height: 22px;
	margin: 0;
	accent-color: var(--color-primary);
}

.score-settings {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
}

.score-settings summary {
	display: flex;
	align-items: center;
	min-height: 48px;
	padding: var(--space-1) var(--space-2);
	font-weight: var(--fw-bold);
	cursor: pointer;
}

.score-settings__form {
	display: grid;
	gap: var(--space-2);
	padding: 0 var(--space-2) var(--space-2);
}

.score-settings fieldset {
	display: flex;
	flex-wrap: wrap;
	gap: 0 var(--space-3);
	margin: 0;
	padding: 0;
	border: 0;
}

.score-settings legend {
	width: 100%;
	padding: 0;
	font-size: var(--fs-sm);
	font-weight: var(--fw-bold);
}

.field {
	display: grid;
	gap: 4px;
	font-size: var(--fs-sm);
	font-weight: var(--fw-bold);
}

.field input,
.field select,
.field textarea {
	min-height: 48px;
	padding: var(--space-1) 12px;
	background: var(--color-surface);
	border: 2px solid var(--color-border-strong);
	border-radius: var(--radius-sm);
	font-size: var(--fs-base);
	font-weight: var(--fw-regular);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
	border-color: var(--color-primary);
}

/* 3. Sơ đồ sân
   ========================================================================== */
.court-figure {
	margin: 0 0 var(--space-2);
}

.court-figure figcaption {
	margin-top: var(--space-1);
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.court-svg {
	display: block;
	width: 100%;
	height: auto;
	background: var(--color-primary);
	border-radius: var(--radius);
}

.court-svg__surface {
	fill: #12805E;
}

.court-svg__kitchen {
	fill: #1A8F6A;
}

.court-svg__lines {
	fill: none;
	stroke: #F7F8F2;
	stroke-width: 3;
}

.court-svg__net {
	stroke: var(--color-text);
	stroke-width: 6;
	stroke-linecap: round;
}

.court-svg .zone {
	fill: transparent;
	transition: fill var(--transition);
}

.court-svg .zone.is-highlight {
	fill: rgba(212, 242, 59, 0.55);
}

.court-svg .zone-line {
	fill: none;
	stroke: transparent;
	stroke-width: 9;
	stroke-linecap: round;
	transition: stroke var(--transition);
}

.court-svg .zone-line.is-highlight {
	stroke: var(--color-accent);
}

.court-svg .player {
	fill: #FFFFFF;
	stroke: var(--color-text);
	stroke-width: 2.5;
}

.court-svg .player--serve {
	fill: var(--color-accent);
}

.court-svg .ball-path {
	fill: none;
	stroke: var(--color-accent);
	stroke-width: 3;
	stroke-dasharray: 2 8;
	stroke-linecap: round;
}

.court-svg .ball-path--volley {
	stroke: #FFFFFF;
	stroke-dasharray: none;
	stroke-width: 3;
}

.court-svg .bounce {
	fill: var(--color-accent);
	stroke: var(--color-text);
	stroke-width: 2;
}

.court-svg .bounce--soft {
	fill: #FFFFFF;
}

.court-svg .bounce-label {
	fill: var(--color-text);
	font-family: var(--font-sans);
	font-size: 13px;
	font-weight: var(--fw-extrabold);
	text-anchor: middle;
}

.court-svg .step-layer.is-off {
	display: none;
}

.court-svg .step-layer.is-past .step-players {
	display: none;
}

.court-svg .step-layer.is-past .step-ball {
	opacity: 0.35;
}

.zone-picker__label {
	margin-bottom: var(--space-1);
	font-size: var(--fs-sm);
	font-weight: var(--fw-bold);
}

.zone-picker__chips {
	margin: 0;
}

.zone-picker__info {
	min-height: 1.65em;
	margin: var(--space-2) 0 0;
	padding-left: var(--space-2);
	border-left: 4px solid var(--color-accent);
}

.zone-picker__info:empty {
	border-left-color: transparent;
}

.zone-list {
	margin: 0;
}

.zone-list__item,
.glossary-item {
	padding: var(--space-2) 0;
	border-bottom: 1px solid var(--color-border);
}

.zone-list__item dt,
.glossary-item dt {
	font-weight: var(--fw-bold);
}

.zone-list__item dd,
.glossary-item dd {
	margin: 4px 0 0;
	color: var(--color-text-muted);
}

.step-controls {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: var(--space-1);
	margin-bottom: var(--space-2);
}

.step-controls__status {
	grid-column: 1 / -1;
	grid-row: 1;
	margin: 0;
	font-weight: var(--fw-bold);
	text-align: center;
}

.steps {
	margin: 0;
	padding-left: var(--space-3);
}

.steps__item {
	margin-bottom: var(--space-1);
	padding: var(--space-1) var(--space-2);
	border-radius: var(--radius-sm);
}

.steps__item::marker {
	color: var(--color-primary);
	font-weight: var(--fw-bold);
}

.steps__item.is-current {
	background: var(--color-accent-soft);
	box-shadow: inset 4px 0 0 var(--color-accent);
}

/* 4. Từ điển
   ========================================================================== */
/* Ô tìm dính dưới header (cao tối đa khoảng 120px khi hiện dòng kết quả):
   cộng vào scroll-padding của html để mục đang chọn không bị che */
html.js:has(.glossary-search) {
	--sticky-extra: 128px;
}

.glossary-search {
	position: sticky;
	top: var(--header-height);
	z-index: 5;
	margin-bottom: var(--space-2);
	padding: var(--space-1) 0;
	background: var(--color-bg);
}

.glossary-search__label {
	display: block;
	margin-bottom: 4px;
	font-size: var(--fs-sm);
	font-weight: var(--fw-bold);
}

.glossary-search__input {
	width: 100%;
	min-height: 48px;
	padding: var(--space-1) var(--space-2);
	background: var(--color-surface);
	border: 2px solid var(--color-border-strong);
	border-radius: var(--radius-pill);
}

.glossary-search__input:focus {
	border-color: var(--color-primary);
}

.glossary-search__status {
	margin: 4px 0 0;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.glossary-search__status:empty {
	display: none;
}

.glossary-list {
	margin: 0;
}

.glossary-item {
	scroll-margin-top: var(--space-1);
}

.glossary-item dt {
	font-size: var(--fs-lead);
}

.glossary-item__more {
	display: inline-block;
	margin-top: 4px;
	font-weight: var(--fw-semibold);
}

.glossary-item__alt {
	margin-left: var(--space-1);
	color: var(--color-primary);
	font-size: var(--fs-sm);
	font-weight: var(--fw-semibold);
}

.glossary-empty {
	padding: var(--space-3);
	background: var(--color-surface);
	border: 1px dashed var(--color-border);
	border-radius: var(--radius);
	text-align: center;
}

/* 5. Luyện gọi điểm, câu đố luật: lựa chọn và phản hồi dùng chung
   ========================================================================== */
.tool-block__intro {
	margin-bottom: var(--space-2);
	color: var(--color-text-muted);
}

.practice {
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.practice__progress {
	margin: 0 0 var(--space-1);
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	font-weight: var(--fw-semibold);
}

.practice__card p,
.practice__result p {
	margin: 0 0 var(--space-1);
}

.practice__call {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 4px var(--space-1);
}

.practice__label {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	font-weight: var(--fw-semibold);
}

.practice__call strong {
	color: var(--color-primary-dark);
	font-size: clamp(1.75rem, 1.5rem + 1.2vw, 2.25rem);
	font-weight: var(--fw-extrabold);
	font-variant-numeric: tabular-nums;
	line-height: var(--lh-tight);
}

.practice__event {
	font-weight: var(--fw-bold);
}

/* Giữ chỗ cho câu hỏi đầu tiên (tỉ số, pha bóng, 4 lựa chọn) trước khi score-keeper.js dựng xong */
.js .practice__call strong:empty::before,
.js .practice__event:empty::before {
	content: "\00a0";
}

.js .practice__options:empty {
	min-height: calc(4 * 52px + 3 * var(--space-1));
}

.practice__question {
	color: var(--color-text-muted);
}

.practice__question:focus,
.practice__score:focus,
.quiz-result__score:focus {
	outline: none;
}

.practice__options,
.quiz-item__options {
	display: grid;
	gap: var(--space-1);
	margin: 0 0 var(--space-2);
	padding: 0;
	list-style: none;
}

.practice__option,
.quiz-option {
	display: flex;
	align-items: center;
	gap: 12px;
	width: 100%;
	min-height: 52px;
	padding: 10px var(--space-2);
	background: var(--color-surface);
	border: 2px solid var(--color-border);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	font: inherit;
	font-weight: var(--fw-semibold);
	text-align: left;
	cursor: pointer;
	transition: border-color var(--transition), background-color var(--transition), transform var(--transition);
}

.practice__option {
	font-size: 1.125rem;
	font-variant-numeric: tabular-nums;
}

.practice__option:active:not(:disabled),
.quiz-option:active:not(:disabled) {
	transform: scale(0.98);
	transition-duration: var(--duration-press);
}

@media (hover: hover) {
	.practice__option:hover:not(:disabled),
	.quiz-option:hover:not(:disabled) {
		background: var(--color-primary-soft);
		border-color: var(--color-primary);
	}
}

.practice__option:disabled,
.quiz-option:disabled {
	cursor: default;
	opacity: 1;
}

.practice__option.is-correct,
.quiz-option.is-correct {
	background: var(--color-accent-soft);
	border-color: var(--color-primary);
	color: var(--color-primary-dark);
}

.practice__option.is-correct::after,
.quiz-option.is-correct::after {
	content: "✓";
	margin-left: auto;
	font-weight: var(--fw-extrabold);
}

.practice__option.is-wrong,
.quiz-option.is-wrong {
	background: #FFE4E6;
	border-color: #E11D48;
	color: #881337;
}

.practice__option.is-wrong::after,
.quiz-option.is-wrong::after {
	content: "✗";
	margin-left: auto;
	font-weight: var(--fw-extrabold);
}

.practice__feedback,
.quiz-item__feedback {
	margin: 0 0 var(--space-2);
}

.practice__feedback:empty,
.quiz-item__feedback:empty {
	margin: 0;
}

.practice__feedback.is-correct,
.quiz-item__feedback.is-correct {
	color: var(--color-primary-dark);
}

.practice__feedback.is-wrong,
.quiz-item__feedback.is-wrong {
	color: #881337;
}

.quiz-item__feedback {
	font-weight: var(--fw-bold);
}

.practice__score,
.quiz-result__score {
	font-size: var(--fs-h3);
	font-weight: var(--fw-extrabold);
}

/* Ô chọn dạng thẻ (một lựa chọn trong nhóm), dòng báo lỗi của form, khối giải thích có ghi nguồn:
   dùng chung cho Chọn vợt và Xếp cặp xoay vòng */
.option-card {
	display: flex;
	align-items: center;
	gap: 12px;
	min-height: 52px;
	padding: 10px var(--space-2);
	background: var(--color-surface);
	border: 2px solid var(--color-border);
	border-radius: var(--radius-sm);
	font-weight: var(--fw-semibold);
	line-height: var(--lh-snug);
	cursor: pointer;
	transition: border-color var(--transition), background-color var(--transition);
}

.option-card input {
	flex-shrink: 0;
	width: 22px;
	height: 22px;
	margin: 0;
	accent-color: var(--color-primary);
}

.option-card:has(input:checked) {
	background: var(--color-primary-soft);
	border-color: var(--color-primary);
}

@media (hover: hover) {
	.option-card:hover {
		border-color: var(--color-primary);
	}
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
	border-color: #E11D48;
}

.tool-error {
	margin: 0;
	padding: 12px var(--space-2);
	background: #FFE4E6;
	border-radius: var(--radius-sm);
	color: #881337;
	font-weight: var(--fw-bold);
}

.tool-rule {
	padding-block: var(--space-3);
	border-top: 1px solid var(--color-border);
}

.tool-rule:last-child {
	padding-bottom: 0;
}

.tool-rule__title {
	margin-bottom: var(--space-1);
}

.tool-rule p,
.tool-rule ul,
.tool-rule ol {
	margin: 0 0 var(--space-2);
}

.tool-rule ul,
.tool-rule ol {
	padding-left: var(--space-3);
}

.tool-rule li {
	margin-bottom: var(--space-1);
}

.tool-rule li::marker {
	color: var(--color-primary);
	font-weight: var(--fw-bold);
}

.tool-rule__source {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.tool-rule > :last-child {
	margin-bottom: 0;
}

/* 6. Câu đố luật
   ========================================================================== */
/* Thanh tiến độ dính dưới header: cách 8px, cao khoảng 43px, cộng vào scroll-padding của html */
html.js:has(.quiz-progress) {
	--sticky-extra: 56px;
}

.quiz-progress {
	position: sticky;
	top: calc(var(--header-height) + var(--space-1));
	z-index: 5;
	margin: 0 0 var(--space-2);
	padding: var(--space-1) var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-pill);
	box-shadow: var(--shadow-sm);
	font-size: var(--fs-sm);
	font-weight: var(--fw-semibold);
	text-align: center;
}

.quiz {
	margin: 0;
	padding: 0;
	list-style: none;
	counter-reset: quiz;
}

.quiz-item {
	margin-bottom: var(--space-3);
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	counter-increment: quiz;
}

.quiz-item__question {
	margin: 0 0 var(--space-2);
	font-size: var(--fs-h4);
	line-height: 1.45;
}

.quiz-item__question::before {
	content: "Câu " counter(quiz) ". ";
	color: var(--color-primary);
}

/* Có JavaScript: đáp án ẩn tới khi chọn, bỏ khoảng trống dưới các lựa chọn.
   Ẩn bằng lớp js trên thẻ html (đặt sẵn trong <head>) nên trang không bị xô khi JS chạy xong. */
.js .quiz-item:not(.is-answered) .quiz-item__options {
	margin-bottom: 0;
}

.js .quiz-item:not(.is-answered) .quiz-item__answer {
	display: none;
}

/* Không có JavaScript: các lựa chọn là danh sách chữ, đáp án xem trong "Xem đáp án" */
.no-js .quiz-option {
	min-height: 0;
	padding: 0;
	background: none;
	border: 0;
	font-weight: inherit;
	cursor: default;
}

.quiz-item__option {
	display: flex;
	align-items: center;
	gap: 12px;
}

.quiz-item__option > .quiz-option {
	flex: 1;
}

.quiz-item__letter {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	width: 28px;
	height: 28px;
	background: var(--color-primary-soft);
	border-radius: 50%;
	color: var(--color-primary-dark);
	font-size: var(--fs-sm);
	font-weight: var(--fw-bold);
}

.quiz-item__answer {
	padding: 12px var(--space-2);
	background: var(--color-bg);
	border-radius: var(--radius-sm);
}

.quiz-item__answer summary {
	min-height: var(--tap);
	display: flex;
	align-items: center;
	font-weight: var(--fw-semibold);
	cursor: pointer;
}

.quiz-item.is-answered .quiz-item__answer summary {
	display: none;
}

.quiz-item__answer p {
	margin: 0 0 var(--space-1);
}

.quiz-item__answer p:last-child {
	margin-bottom: 0;
}

.quiz-item__more a {
	display: inline-flex;
	align-items: center;
	min-height: var(--tap);
	font-weight: var(--fw-semibold);
}

.quiz-result {
	padding: var(--space-3);
	background: var(--color-accent-soft);
	border-radius: var(--radius);
	text-align: center;
}

.quiz-result p {
	margin: 0 0 var(--space-2);
}

.quiz-result__actions {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: var(--space-1);
}

/* Dòng nhắc ôn: lần làm gần nhất, lưu trên máy người dùng */
.quiz-memory {
	margin: 0 0 var(--space-2);
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

/* 7. Lộ trình cho người mới
   ========================================================================== */
.roadmap-progress {
	margin-bottom: var(--space-3);
}

.roadmap-progress__text {
	margin: 0 0 var(--space-1);
	font-weight: var(--fw-bold);
}

.roadmap-progress__bar {
	height: 12px;
	overflow: hidden;
	background: var(--color-primary-soft);
	border-radius: var(--radius-pill);
}

.roadmap-progress__bar span {
	display: block;
	width: 0;
	height: 100%;
	background: var(--color-primary);
	border-radius: inherit;
	transition: width var(--transition);
}

.roadmap {
	margin: 0;
	padding: 0;
	list-style: none;
}

.roadmap-step {
	position: relative;
	margin-bottom: var(--space-2);
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
}

.roadmap-step.is-done {
	background: var(--color-bg);
	border-color: var(--color-primary);
}

.roadmap-step p {
	margin: 0 0 var(--space-1);
}

.roadmap-step__head {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	margin-bottom: var(--space-1);
}

.roadmap-step__number {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	width: 36px;
	height: 36px;
	background: var(--color-accent);
	border-radius: 50%;
	color: var(--color-primary-dark);
	font-weight: var(--fw-extrabold);
}

.roadmap-step.is-done .roadmap-step__number {
	background: var(--color-primary);
	color: #FFFFFF;
}

.roadmap-step__title {
	margin: 4px 0 0;
	font-size: var(--fs-h3);
}

.roadmap-step__done {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.roadmap-step__tips {
	margin: 0 0 var(--space-2);
	padding-left: var(--space-3);
}

.roadmap-step__tips li {
	margin-bottom: 4px;
}

.roadmap-step__tips li::marker {
	color: var(--color-primary);
}

.roadmap-step__source {
	margin: var(--space-1) 0 0;
	color: var(--color-text-muted);
	font-size: var(--fs-xs);
}

.roadmap-step__links {
	display: flex;
	flex-wrap: wrap;
	gap: 0 var(--space-2);
	margin: 0;
	padding: 0;
	list-style: none;
}

.roadmap-step__links a {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	min-height: var(--tap);
	font-weight: var(--fw-semibold);
}

.roadmap-step__links .icon {
	width: 18px;
	height: 18px;
}

.roadmap-step__check {
	display: inline-flex;
	align-items: center;
	gap: var(--space-1);
	min-height: var(--tap);
	margin-top: 4px;
	padding: 0 var(--space-2) 0 12px;
	background: var(--color-primary-soft);
	border-radius: var(--radius-pill);
	font-weight: var(--fw-semibold);
	cursor: pointer;
}

.roadmap-step__check input {
	width: 22px;
	height: 22px;
	margin: 0;
	accent-color: var(--color-primary);
}

.roadmap-step.is-done .roadmap-step__check {
	background: var(--color-accent);
	color: var(--color-primary-dark);
}

.roadmap-note__reset {
	min-height: var(--tap);
	padding: 0 4px;
	background: none;
	border: 0;
	color: var(--color-primary);
	font: inherit;
	font-weight: var(--fw-semibold);
	text-decoration: underline;
	cursor: pointer;
}

/* 7b. Tự kiểm tra kỹ năng ("Tôi làm được…")
   ========================================================================== */
.skills-note {
	margin: 0 0 var(--space-3);
}

.skills-progress {
	margin-bottom: var(--space-3);
}

.skills-progress__text {
	margin: 0 0 var(--space-1);
	font-weight: var(--fw-bold);
}

.skills-progress__bar {
	height: 12px;
	overflow: hidden;
	background: var(--color-primary-soft);
	border-radius: var(--radius-pill);
}

.skills-progress__bar span {
	display: block;
	width: 0;
	height: 100%;
	background: var(--color-primary);
	border-radius: inherit;
	transition: width var(--transition);
}

.skills-next {
	margin: var(--space-2) 0 0;
}

.skills-next a {
	font-weight: var(--fw-semibold);
}

.skills-group {
	margin-top: var(--space-4);
}

.skills-group__title {
	margin: 0 0 var(--space-2);
	font-size: var(--fs-h3);
}

.skills-list {
	display: grid;
	gap: var(--space-2);
	margin: 0;
	padding: 0;
	list-style: none;
}

.skill-item {
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
}

.skill-item.is-done {
	background: var(--color-bg);
	border-color: var(--color-primary);
}

/* Cả câu là nhãn của ô đánh dấu: chạm vào câu là đánh dấu */
.skill-item__label {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	min-height: var(--tap);
	font-weight: var(--fw-semibold);
	line-height: var(--lh-snug);
	cursor: pointer;
}

.skill-item__box {
	flex-shrink: 0;
	width: 24px;
	height: 24px;
	margin: 0;
	accent-color: var(--color-primary);
	cursor: pointer;
}

.skill-item__how {
	margin: var(--space-1) 0 0;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.skill-item__links {
	display: flex;
	flex-wrap: wrap;
	gap: 0 var(--space-2);
	margin: 4px 0 0;
	padding: 0;
	list-style: none;
	font-size: var(--fs-sm);
}

.skill-item__links a {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	min-height: var(--tap);
	font-weight: var(--fw-semibold);
}

.skill-item__links .icon {
	width: 18px;
	height: 18px;
}

/* 8. Chọn vợt
   ========================================================================== */
.paddle-finder {
	display: grid;
	gap: var(--space-3);
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.paddle-question {
	min-width: 0;
	margin: 0;
	padding: 0;
	border: 0;
}

.paddle-question__legend {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	margin-bottom: var(--space-1);
	padding: 0;
	font-weight: var(--fw-bold);
	line-height: var(--lh-snug);
}

.paddle-question__number {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	width: 28px;
	height: 28px;
	margin-top: -2px;
	background: var(--color-primary);
	border-radius: 50%;
	color: #FFFFFF;
	font-size: var(--fs-sm);
	font-weight: var(--fw-extrabold);
	line-height: 1;
}

.paddle-question.is-missing .paddle-question__number {
	background: #BE123C;
}

.paddle-question__hint {
	margin: 0 0 var(--space-1);
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.paddle-question__options,
.paddle-question__fields {
	display: grid;
	gap: var(--space-1);
}

.paddle-question.is-missing .option-card {
	border-color: #E11D48;
}

.paddle-finder__actions .button {
	width: 100%;
}

.paddle-result {
	margin-top: var(--space-3);
	padding: var(--space-3) var(--space-2);
	background: var(--color-surface);
	border: 2px solid var(--color-primary);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.paddle-result__title {
	margin-bottom: var(--space-2);
}

.paddle-result__title:focus {
	outline: none;
}

.paddle-result__specs {
	display: grid;
	gap: var(--space-2);
	margin: 0 0 var(--space-3);
}

.paddle-spec {
	padding-bottom: var(--space-2);
	border-bottom: 1px solid var(--color-border);
}

.paddle-spec dt {
	color: var(--color-primary-dark);
	font-size: var(--fs-sm);
	font-weight: var(--fw-extrabold);
}

.paddle-spec dd {
	margin: 0;
}

.paddle-spec__more {
	display: block;
	margin-top: 4px;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.paddle-result__notes {
	display: grid;
	gap: var(--space-1);
}

.paddle-note {
	margin: 0;
	padding: 12px var(--space-2);
	background: var(--color-accent-soft);
	border-left: 4px solid var(--color-primary);
	border-radius: var(--radius-sm);
}

.paddle-note--warn {
	background: #FEF3C7;
	border-left-color: #92400E;
}

.paddle-result__subtitle {
	margin: var(--space-3) 0 var(--space-1);
	font-size: var(--fs-base);
}

.paddle-result__checklist {
	margin: 0;
	padding-left: var(--space-3);
}

.paddle-result__checklist li {
	margin-bottom: 4px;
}

.paddle-result__checklist li::marker {
	color: var(--color-primary);
}

.paddle-result__actions {
	margin-top: var(--space-3);
}

@media (min-width: 480px) {
	.paddle-question__options,
	.paddle-question__fields {
		grid-template-columns: repeat(2, 1fr);
	}

	.paddle-finder__actions .button {
		width: auto;
	}
}

@media (min-width: 768px) {
	.paddle-finder {
		padding: var(--space-3);
	}

	.paddle-result {
		padding: var(--space-4);
	}

	/* Tên thông số bên trái, gợi ý bên phải cho dễ dò */
	.paddle-spec {
		display: grid;
		grid-template-columns: 8.5em 1fr;
		gap: var(--space-2);
	}

	.paddle-spec dt {
		padding-top: 2px;
	}
}

/* 9. Xếp cặp xoay vòng
   ========================================================================== */
.rr-form {
	display: grid;
	gap: var(--space-3);
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.rr-names textarea {
	min-height: 216px;
	padding-block: 12px;
	font-family: inherit;
	line-height: var(--lh-base);
	resize: vertical;
}

.rr-quick {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 4px var(--space-1);
	margin-top: calc(var(--space-2) * -1);
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.rr-quick__label {
	flex-basis: 100%;
}

.rr-quick input {
	width: 4em;
	min-height: var(--tap);
	padding: 0 var(--space-1);
	background: var(--color-surface);
	border: 2px solid var(--color-border-strong);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	font: inherit;
	text-align: center;
}

.rr-quick input:focus {
	border-color: var(--color-primary);
}

.rr-quick .button {
	padding-inline: var(--space-2);
	font-size: var(--fs-sm);
}

.rr-format {
	display: grid;
	gap: var(--space-1);
	min-width: 0;
	margin: 0;
	padding: 0;
	border: 0;
}

.rr-format legend {
	margin-bottom: var(--space-1);
	padding: 0;
	font-weight: var(--fw-bold);
}

.rr-format .option-card {
	align-items: flex-start;
	font-weight: var(--fw-regular);
}

.rr-format .option-card input {
	margin-top: 2px;
}

.rr-format .option-card strong {
	display: block;
	font-weight: var(--fw-bold);
}

.rr-fields {
	display: grid;
	gap: var(--space-2);
}

.rr-actions {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-1);
}

.rr-actions--minor {
	margin-top: var(--space-1);
}

.rr-round__head {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 4px var(--space-2);
	margin-bottom: var(--space-2);
}

.rr-round__head .tool-block__title {
	margin-bottom: 0;
}

.rr-round__head .tool-block__title:focus,
.rr-setup .tool-block__title:focus {
	outline: none;
}

.rr-round__meta {
	margin: 0;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.rr-timer {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-1) var(--space-2);
	margin-bottom: var(--space-2);
	padding: 12px var(--space-2);
	background: var(--color-text);
	border-radius: var(--radius);
}

.rr-timer__value {
	margin: 0;
	color: var(--color-accent);
	font-size: 2.5rem;
	font-weight: var(--fw-extrabold);
	font-variant-numeric: tabular-nums;
	line-height: 1.1;
}

.rr-timer.is-over .rr-timer__value {
	color: #FDA4AF;
}

.rr-timer__actions {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-1);
}

.rr-timer__actions .button {
	padding-inline: var(--space-2);
	font-size: var(--fs-sm);
}

.rr-courts {
	display: grid;
	gap: var(--space-2);
	margin: 0 0 var(--space-2);
	padding: 0;
	list-style: none;
}

.rr-court {
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.rr-court__title {
	margin: 0 0 var(--space-1);
	color: var(--color-primary-dark);
	font-size: var(--fs-base);
}

.rr-team {
	display: flex;
	align-items: center;
	gap: var(--space-2);
	padding: 4px 4px 4px 12px;
	border-left: 4px solid transparent;
	border-radius: var(--radius-sm);
}

.rr-team.is-winner {
	background: var(--color-accent-soft);
	border-left-color: var(--color-primary);
}

.rr-team__names {
	flex: 1;
	margin: 0;
	font-size: var(--fs-lead);
	font-weight: var(--fw-bold);
	line-height: var(--lh-snug);
}

.rr-team__score {
	flex-shrink: 0;
	width: 64px;
	min-height: 48px;
	padding: 0 var(--space-1);
	background: var(--color-surface);
	border: 2px solid var(--color-border-strong);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	font: inherit;
	font-size: 1.25rem;
	font-weight: var(--fw-bold);
	font-variant-numeric: tabular-nums;
	text-align: center;
}

.rr-team__score:focus {
	border-color: var(--color-primary);
}

.rr-team__score[aria-invalid="true"] {
	border-color: #E11D48;
}

.rr-court__vs {
	margin: 4px 0 4px 16px;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.rr-rest {
	margin: 0 0 var(--space-2);
	padding: 12px var(--space-2);
	border: 2px dashed var(--color-border-strong);
	border-radius: var(--radius-sm);
	font-weight: var(--fw-semibold);
}

.rr-round .tool-error {
	margin-bottom: var(--space-2);
}

.rr-table-wrap {
	overflow-x: auto;
}

.rr-table {
	width: 100%;
	border-collapse: collapse;
	font-variant-numeric: tabular-nums;
}

.rr-table th,
.rr-table td {
	padding: 10px var(--space-1);
	border-bottom: 1px solid var(--color-border);
	text-align: right;
}

.rr-table thead th {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	white-space: nowrap;
}

.rr-table abbr {
	text-decoration: none;
}

.rr-table th:nth-child(-n + 2),
.rr-table td:first-child {
	text-align: left;
}

.rr-table tbody th {
	font-weight: var(--fw-semibold);
}

.rr-table__place {
	font-weight: var(--fw-bold);
}

.rr-player-list {
	display: grid;
	gap: var(--space-1);
	margin: 0 0 var(--space-2);
	padding: 0;
	list-style: none;
}

.rr-player {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-2);
	padding: var(--space-1) var(--space-1) var(--space-1) var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
}

.rr-player.is-paused {
	background: transparent;
	border-style: dashed;
	border-color: var(--color-border-strong);
}

.rr-player__name {
	margin: 0;
	font-weight: var(--fw-bold);
}

.rr-player.is-paused .rr-player__name {
	color: var(--color-text-muted);
}

.rr-player__meta {
	margin: 0;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.rr-player__toggle {
	flex-shrink: 0;
	padding-inline: var(--space-2);
	font-size: var(--fs-sm);
}

.rr-add {
	display: flex;
	align-items: flex-end;
	gap: var(--space-1);
	margin-bottom: var(--space-1);
}

.rr-add .field {
	flex: 1;
}

.rr-add .button {
	min-height: 48px;
}

.rr-settings {
	margin-top: var(--space-3);
}

.rr-end.is-armed {
	background: #FFE4E6;
	border-color: #BE123C;
	color: #881337;
}

@media (min-width: 480px) {
	.rr-fields {
		grid-template-columns: repeat(3, 1fr);
		align-items: end;
	}
}

@media (min-width: 768px) {
	.rr-form {
		padding: var(--space-3);
	}

	.rr-courts {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* 10. Buổi tập
   ========================================================================== */
.session-form {
	display: grid;
	gap: var(--space-3);
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.session-form .tool-note {
	margin-top: calc(var(--space-2) * -1);
}

.session-choice {
	min-width: 0;
	margin: 0;
	padding: 0;
	border: 0;
}

.session-choice legend {
	margin-bottom: var(--space-1);
	padding: 0;
	font-weight: var(--fw-bold);
}

.session-choice__options {
	display: grid;
	gap: var(--space-1);
}

.session-choice__options--stack .option-card {
	align-items: flex-start;
	font-weight: var(--fw-regular);
}

.session-choice__options--stack .option-card input {
	margin-top: 2px;
}

.session-choice__options--stack .option-card strong {
	display: block;
	font-weight: var(--fw-bold);
}

/* Lựa chọn ngắn (số người, thời lượng): các nút liền hàng, bên dưới vẫn là ô radio cho bàn phím
   và trình đọc màn hình */
.session-segment {
	grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
}

.session-segment .option-card {
	position: relative;
	justify-content: center;
	min-height: 48px;
	padding: var(--space-1);
	font-size: var(--fs-sm);
	text-align: center;
}

.session-segment .option-card input {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	opacity: 0;
	cursor: pointer;
}

.session-segment .option-card:has(input:checked) {
	background: var(--color-primary);
	border-color: var(--color-primary);
	color: #FFFFFF;
}

.session-segment .option-card:has(input:focus-visible) {
	outline: 3px solid var(--color-primary);
	outline-offset: 3px;
}

.session-plan {
	margin-top: var(--space-4);
}

.session-plan__head {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: space-between;
	gap: 4px var(--space-2);
	margin-bottom: var(--space-2);
}

.session-plan__title {
	margin: 0;
	font-size: var(--fs-h3);
}

.session-plan__summary {
	margin: 0;
	color: var(--color-primary-dark);
	font-weight: var(--fw-bold);
	font-variant-numeric: tabular-nums;
}

.session-plan__empty {
	margin: 0 0 var(--space-2);
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px dashed var(--color-border-strong);
	border-radius: var(--radius-sm);
	color: var(--color-text-muted);
}

.session-list {
	display: grid;
	gap: var(--space-1);
	margin: 0 0 var(--space-3);
	padding: 0;
	list-style: none;
}

.session-item {
	display: grid;
	gap: var(--space-1);
	padding: 12px var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	box-shadow: var(--shadow-sm);
}

.session-item__head {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	min-width: 0;
}

.session-item__index {
	display: flex;
	flex-shrink: 0;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	background: var(--color-primary-soft);
	border-radius: 50%;
	color: var(--color-primary-dark);
	font-weight: var(--fw-bold);
	font-variant-numeric: tabular-nums;
}

.session-item__text {
	display: grid;
	gap: 2px;
	min-width: 0;
	padding-top: 4px;
}

.session-item__title {
	font-weight: var(--fw-bold);
	line-height: var(--lh-snug);
}

.session-item__meta {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	line-height: var(--lh-snug);
}

.session-item__warn {
	color: #9A3412;
	font-size: var(--fs-sm);
	font-weight: var(--fw-semibold);
}

/* Hàng nút thẳng với tên bài: lùi bằng số thứ tự (32px) và khoảng cách (12px) */
.session-item__controls {
	display: flex;
	align-items: center;
	gap: var(--space-1);
	padding-left: 44px;
}

.session-item__minutes {
	margin-right: auto;
}

.session-item__minutes select {
	min-height: var(--tap);
	padding: 0 var(--space-1);
	background: var(--color-surface);
	border: 2px solid var(--color-border-strong);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	font: inherit;
	font-weight: var(--fw-semibold);
}

.session-item__minutes select:focus {
	border-color: var(--color-primary);
}

.session-icon {
	display: inline-flex;
	flex-shrink: 0;
	align-items: center;
	justify-content: center;
	width: var(--tap);
	height: var(--tap);
	padding: 0;
	background: var(--color-surface);
	border: 2px solid var(--color-border);
	border-radius: var(--radius-sm);
	color: var(--color-primary-dark);
	cursor: pointer;
	transition: border-color var(--transition);
}

.session-icon .icon {
	width: 20px;
	height: 20px;
}

.session-icon .icon--up {
	transform: rotate(-90deg);
}

.session-icon .icon--down {
	transform: rotate(90deg);
}

.session-icon--remove {
	color: #9F1239;
}

.session-icon:disabled {
	opacity: 0.35;
	cursor: not-allowed;
}

@media (hover: hover) {
	.session-icon:not(:disabled):hover {
		border-color: var(--color-primary);
	}
}

.session-add {
	display: flex;
	align-items: flex-end;
	gap: var(--space-1);
}

.session-add .field {
	flex: 1;
	min-width: 0;
}

.session-add .field select {
	width: 100%;
	min-width: 0;
}

.session-add .button {
	flex-shrink: 0;
	min-height: 48px;
}

.session-goal-field {
	margin-top: var(--space-3);
}

.session-plan .tool-error {
	margin-top: var(--space-2);
}

.session-plan__start {
	margin-top: var(--space-3);
}

.session-plan__start .button {
	width: 100%;
}

/* Đồng hồ: nền tối, số lớn đọc được từ xa khi đặt điện thoại ở mép sân */
.session-clock {
	padding: var(--space-3) var(--space-2);
	background: var(--color-text);
	border-radius: var(--radius);
	color: #FFFFFF;
	text-align: center;
}

.session-clock :focus-visible {
	outline-color: var(--color-accent);
}

.session-clock__step {
	margin: 0 0 4px;
	color: var(--color-footer-text);
	font-size: var(--fs-sm);
	font-weight: var(--fw-semibold);
}

.session-clock__title {
	margin: 0;
	color: #FFFFFF;
	font-size: var(--fs-h3);
	line-height: var(--lh-snug);
}

.session-clock__title:focus {
	outline: none;
}

.session-clock__time {
	margin: var(--space-1) 0 var(--space-2);
	color: var(--color-accent);
	font-size: clamp(4rem, 20vw, 6rem);
	font-weight: var(--fw-extrabold);
	font-variant-numeric: tabular-nums;
	line-height: 1;
	letter-spacing: -0.02em;
}

.session-player.is-last-minute .session-clock__time {
	color: #FDBA74;
}

.session-player.is-over .session-clock__time {
	color: #FDA4AF;
}

.session-clock__bar {
	height: 8px;
	overflow: hidden;
	background: rgba(255, 255, 255, 0.16);
	border-radius: var(--radius-pill);
}

.session-clock__bar span {
	display: block;
	width: 0;
	height: 100%;
	background: var(--color-accent);
	border-radius: inherit;
	transition: width 250ms linear;
}

.session-clock__over {
	margin: var(--space-2) 0 0;
	padding: 12px var(--space-2);
	background: rgba(212, 242, 59, 0.14);
	border-radius: var(--radius-sm);
	font-weight: var(--fw-bold);
}

.session-clock__next {
	margin: var(--space-2) 0;
	color: var(--color-footer-text);
	font-size: var(--fs-sm);
}

.session-controls {
	display: grid;
	gap: var(--space-1);
}

.session-controls__main {
	width: 100%;
}

.session-controls__row {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: var(--space-1);
}

.session-controls__row .button {
	gap: 4px;
	min-height: 48px;
	padding-inline: var(--space-1);
	font-size: var(--fs-sm);
}

.session-controls__row .icon {
	flex-shrink: 0;
	width: 18px;
	height: 18px;
}

.session-controls__prev .icon {
	transform: rotate(180deg);
}

.session-goal {
	margin: var(--space-2) 0 0;
	padding: 12px var(--space-2);
	background: var(--color-accent-soft);
	border-left: 4px solid var(--color-primary);
	border-radius: var(--radius-sm);
	font-weight: var(--fw-semibold);
}

.session-detail {
	margin-top: var(--space-4);
}

.session-detail .drill-goal {
	margin: 0 0 var(--space-3);
}

.session-detail__title {
	margin: 0 0 var(--space-2);
	font-size: var(--fs-h4);
}

.session-detail .drill-steps {
	margin-bottom: var(--space-3);
}

.session-detail .drill-count-box {
	margin: 0 0 var(--space-3);
}

.session-detail__diagram {
	margin: 0 0 var(--space-3);
}

.session-detail__tips {
	margin: 0 0 var(--space-2);
	padding-left: var(--space-3);
}

.session-detail__tips li,
.session-detail__more li {
	margin-bottom: var(--space-1);
}

.session-detail__more {
	margin-bottom: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
}

.session-detail__more summary {
	display: flex;
	align-items: center;
	min-height: 48px;
	padding: var(--space-1) var(--space-2);
	font-weight: var(--fw-bold);
	cursor: pointer;
}

.session-detail__more ul {
	margin: 0;
	padding: 0 var(--space-2) var(--space-1) var(--space-5);
}

.session-player__footer {
	display: grid;
	gap: var(--space-1);
	margin-top: var(--space-4);
	padding-top: var(--space-3);
	border-top: 1px solid var(--color-border);
}

.session-player__footer .tool-note {
	margin: 0 0 var(--space-1);
}

.session-end.is-armed {
	background: #FFE4E6;
	border-color: #E11D48;
	color: #881337;
}

.session-done {
	padding: var(--space-3) var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.session-done .tool-block__title:focus {
	outline: none;
}

.session-done__tips {
	margin: 0 0 var(--space-3);
	padding-left: var(--space-3);
}

.session-done__tips li {
	margin-bottom: var(--space-1);
}

.session-samples__list {
	display: grid;
	gap: var(--space-2);
	margin: 0;
	padding: 0;
	list-style: none;
}

.session-sample {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.session-sample__head {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: space-between;
	gap: 4px var(--space-2);
	align-self: stretch;
	margin-bottom: var(--space-1);
}

.session-sample__title {
	margin: 0;
	font-size: var(--fs-base);
}

.session-sample__total {
	color: var(--color-primary-dark);
	font-size: var(--fs-sm);
	font-weight: var(--fw-bold);
}

.session-sample__blocks {
	flex: 1;
	margin: 0 0 var(--space-2);
	padding-left: var(--space-3);
}

.session-sample__blocks li {
	margin-bottom: 4px;
}

.session-sample__minutes {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	white-space: nowrap;
}

.session-print {
	display: none;
}

@media (min-width: 640px) {
	.session-item {
		grid-template-columns: minmax(0, 1fr) auto;
		align-items: center;
	}

	.session-item__controls {
		padding-left: 0;
	}

	.session-item__minutes {
		margin-right: var(--space-1);
	}

	.session-plan__start .button {
		width: auto;
	}

	.session-samples__list {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (prefers-reduced-motion: reduce) {
	.session-clock__bar span {
		transition: none;
	}
}

@media print {
	.session-setup,
	.session-player,
	.session-done,
	.session-samples,
	.session-guide {
		display: none !important;
	}

	.session-print {
		display: block;
	}

	.session-print__list > li {
		margin-bottom: var(--space-2);
		break-inside: avoid;
	}

	.session-print__item {
		margin: 0 0 4px;
		font-size: var(--fs-base);
	}
}

/* 11. 5 buổi tập đầu tiên
   ========================================================================== */
.series {
	display: grid;
	gap: var(--space-2);
	margin: var(--space-3) 0 var(--space-6);
	padding: 0;
	list-style: none;
}

.series-session {
	padding: var(--space-2);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
}

.series-session.is-next {
	border-color: var(--color-primary);
	box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-sm);
}

.series-session__head {
	display: flex;
	align-items: flex-start;
	gap: 12px;
}

.series-session__number {
	display: flex;
	flex-shrink: 0;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	background: var(--color-primary);
	border-radius: 50%;
	color: #FFFFFF;
	font-weight: var(--fw-extrabold);
	font-variant-numeric: tabular-nums;
}

.series-session.is-done .series-session__number {
	background: var(--color-accent);
	color: var(--color-primary-dark);
}

.series-session__heading {
	display: flex;
	flex: 1;
	flex-direction: column;
	min-width: 0;
}

.series-session__title {
	margin: 0;
	font-size: var(--fs-h3);
	line-height: var(--lh-snug);
}

/* Dòng "Buổi 1" và nhãn trạng thái hiện phía trên tên buổi; trong mã nằm sau tiêu đề để trình đọc
   màn hình đọc tên buổi trước */
.series-session__meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 4px var(--space-1);
	order: -1;
	min-height: 24px;
	margin: 0 0 2px;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	font-weight: var(--fw-semibold);
}

.series-session__badge {
	flex-shrink: 0;
	padding: 2px 10px;
	background: var(--color-accent-soft);
	border: 1px solid #E3F38F;
	border-radius: var(--radius-pill);
	color: var(--color-primary-dark);
	font-size: var(--fs-xs);
	font-weight: var(--fw-bold);
	white-space: nowrap;
}

.series-session__text {
	margin: var(--space-1) 0 var(--space-2);
	color: var(--color-text-muted);
}

.series-session__blocks {
	margin: 0 0 var(--space-1);
	padding-left: var(--space-3);
}

.series-session__blocks li {
	margin-bottom: var(--space-1);
}

.series-block__minutes {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	white-space: nowrap;
}

.series-block__review {
	display: inline-block;
	margin-left: 4px;
	padding: 0 8px;
	background: var(--color-primary-soft);
	border-radius: var(--radius-pill);
	color: var(--color-primary-dark);
	font-size: var(--fs-xs);
	font-weight: var(--fw-bold);
}

.series-block__goal {
	display: block;
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.series-session__total {
	margin: 0 0 var(--space-2);
	font-size: var(--fs-sm);
	font-weight: var(--fw-bold);
}

.series-session__actions {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-1);
}

/* Nút bật tắt "Đã tập xong": ô vuông, có dấu tích khi đã bấm */
.series-check {
	position: relative;
	flex-shrink: 0;
	width: 20px;
	height: 20px;
	border: 2px solid currentColor;
	border-radius: 4px;
}

.series-session__done[aria-pressed="true"] {
	background: var(--color-primary-soft);
}

.series-session__done[aria-pressed="true"] .series-check {
	background: var(--color-primary);
	border-color: var(--color-primary);
}

/* Rê chuột lên nút đã bấm: giữ kiểu rê chuột của nút phụ (nền xanh, chữ trắng), viền ô đánh dấu theo màu chữ */
@media (hover: hover) {
	.series-session__done[aria-pressed="true"]:hover {
		background: var(--color-primary);
	}

	.series-session__done[aria-pressed="true"]:hover .series-check {
		border-color: currentColor;
	}
}

.series-session__done[aria-pressed="true"] .series-check::after {
	content: "";
	position: absolute;
	top: 1px;
	left: 5px;
	width: 6px;
	height: 11px;
	border: solid #FFFFFF;
	border-width: 0 2px 2px 0;
	transform: rotate(45deg);
}

.series-session__missing {
	margin: 0;
	padding: 12px var(--space-2);
	border: 1px dashed var(--color-border-strong);
	border-radius: var(--radius-sm);
	color: var(--color-text-muted);
}

.series-guide__list {
	margin: 0 0 var(--space-2);
	padding-left: var(--space-3);
}

.series-guide__list li {
	margin-bottom: var(--space-1);
}

/* Trang Buổi tập: buổi đang mở thuộc chuỗi 5 buổi đầu */
.session-plan__series,
.session-done__series {
	margin: 0 0 var(--space-2);
	padding: 12px var(--space-2);
	background: var(--color-accent-soft);
	border-radius: var(--radius-sm);
	font-weight: var(--fw-semibold);
}

.session-plan__title:focus {
	outline: none;
}

@media print {
	.series-progress,
	.series-session__actions {
		display: none !important;
	}

	.series-session {
		box-shadow: none;
		break-inside: avoid;
	}
}

/* 12. Màn rộng
   ========================================================================== */
@media (min-width: 768px) {
	.score-keeper {
		padding: var(--space-3);
	}

	.score-team {
		min-height: 190px;
	}

	.score-team__points {
		font-size: 4rem;
	}

	.step-controls {
		grid-template-columns: auto 1fr auto;
		align-items: center;
	}

	.step-controls__status {
		grid-column: 2;
	}
}

@media (min-width: 601px) {
	.admin-bar .glossary-search {
		top: calc(var(--header-height) + 46px);
	}

	.admin-bar .quiz-progress {
		top: calc(var(--header-height) + 46px + var(--space-1));
	}
}

@media (min-width: 783px) {
	.admin-bar .glossary-search {
		top: calc(var(--header-height) + 32px);
	}

	.admin-bar .quiz-progress {
		top: calc(var(--header-height) + 32px + var(--space-1));
	}
}

@media print {
	.score-keeper,
	.zone-picker,
	.step-controls,
	.glossary-search,
	.practice,
	.quiz-progress,
	.roadmap-step__check,
	.skills-progress,
	.skills-storage,
	.paddle-finder,
	.paddle-result__actions,
	.rr-setup,
	.rr-timer,
	.rr-actions,
	.rr-players,
	.rr-guide {
		display: none !important;
	}

	.rr-team__score {
		border: 1px solid #000;
	}
}