/* ==========================================================
   趣体育场 Site Kit 共享样式
   qu-sport-cn.com.cn
   ========================================================== */

/* ---------- 01 Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

img,
picture {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

/* ---------- 02 Design Tokens ---------- */
:root {
  --color-primary: #FF4D2E;
  --color-primary-hover: #CC3A20;
  --color-secondary: #0F2A43;
  --color-secondary-soft: #163A5F;
  --color-teal: #00C2A8;
  --color-teal-dark: #067A6C;
  --color-bg-light: #F7F5F0;
  --color-bg-dark: #1A1A2E;
  --color-text: #222222;
  --color-muted: #666666;
  --color-highlight: #FFD166;
  --gradient-primary: linear-gradient(135deg, #FF4D2E 0%, #FF8C42 100%);
  --font-sans: 'Noto Sans SC', 'Source Han Sans', 'Microsoft YaHei', sans-serif;
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --container: 1200px;
  --container-narrow: 760px;
  --radius: 6px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(15,42,67,.08);
  --shadow-md: 0 6px 20px rgba(15,42,67,.12);
  --shadow-lg: 0 16px 48px rgba(15,42,67,.18);
}

/* ---------- 03 Base ---------- */
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  margin: 0;
  background: var(--color-bg-light);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
  flex: 1 0 auto;
}

#main-content {
  scroll-margin-top: var(--space-5);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-sans);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-secondary);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.25rem, 5.5vw, 4rem);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.625rem);
}

h3 {
  font-size: 1.375rem;
}

h4 {
  font-size: 1.125rem;
}

p {
  margin: 0 0 1.25em;
}

strong,
b {
  font-weight: 700;
}

small {
  font-size: .875em;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color .2s ease;
}

a:hover {
  color: var(--color-primary);
}

::selection {
  background: var(--color-primary);
  color: #fff;
}

/* ---------- 04 Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.section--tight {
  padding-block: clamp(1.75rem, 4vw, 3rem);
}

.section--ink {
  background: var(--color-secondary);
  color: rgba(255, 255, 255, .9);
}

.section--ink h1,
.section--ink h2,
.section--ink h3,
.section--ink h4 {
  color: #fff;
}

.section--ink p {
  color: rgba(255, 255, 255, .85);
}

.section--ink a {
  color: var(--color-teal);
}

.section--ink a:hover {
  color: var(--color-highlight);
}

.section--tint {
  background: linear-gradient(180deg, rgba(255, 77, 46, .05), rgba(0, 194, 168, .04));
}

.section-head {
  margin-bottom: var(--space-6);
}

.section-head--split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.section-head__link {
  font-size: .875rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--color-primary);
  margin-bottom: .25rem;
}

.section-head__link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.band {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
}

/* ---------- 05 Typography Components ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--color-primary);
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: .25rem .875rem;
}

.kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

.page-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: .5rem 0 1rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.625rem);
  margin: .5rem 0 1rem;
}

.prose {
  max-width: 75ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
}

.prose p {
  margin: 0 0 1.5em;
}

.prose a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose ul,
.prose ol {
  margin: 0 0 1.5em;
  padding-left: 1.5em;
}

.prose ul {
  list-style: disc;
}

.prose ol {
  list-style: decimal;
}

.prose li {
  margin-bottom: .5em;
}

.stat {
  font-variant-numeric: tabular-nums;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--color-secondary);
}

.stat--md {
  font-size: 2rem;
}

.stat--lg {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

.stat--brand {
  color: var(--color-primary);
}

/* ---------- 06 Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .6875rem 1.5rem;
  border: 2px solid transparent;
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-sans);
  font-size: .9375rem;
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.4;
  text-decoration: none;
  color: var(--color-secondary);
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .15s ease, box-shadow .2s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: var(--color-secondary);
  color: #fff;
}

.btn--secondary:hover {
  background: var(--color-secondary-soft);
  color: #fff;
}

.btn--outline {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--teal {
  background: var(--color-teal);
  color: var(--color-secondary);
}

.btn--teal:hover {
  filter: brightness(.95);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--ghost {
  color: var(--color-secondary);
}

.btn--ghost:hover {
  background: rgba(15, 42, 67, .07);
}

.btn--sm {
  padding: .4375rem 1.125rem;
  font-size: .8125rem;
}

.btn--lg {
  padding: .9375rem 1.875rem;
  font-size: 1.0625rem;
}

.btn__arrow {
  font-weight: 900;
  font-size: 1.125em;
  line-height: 1;
}

/* ---------- 07 Breadcrumbs ---------- */
.breadcrumbs {
  padding-block: var(--space-5) var(--space-2);
  font-size: .8125rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .75rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "›";
  margin-right: .75rem;
  color: var(--color-muted);
  opacity: .65;
  font-size: 1.1em;
}

.breadcrumbs a {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 600;
}

.breadcrumbs a:hover {
  color: var(--color-primary);
}

.breadcrumbs [aria-current="page"] {
  color: var(--color-primary);
  font-weight: 800;
}

/* ---------- 08 Grids & Cards ---------- */
.grid {
  display: grid;
  gap: var(--space-5);
}

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

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid--5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.card {
  background: #fff;
  border: 1px solid rgba(15, 42, 67, .10);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.card--ink {
  background: var(--color-bg-dark);
  border-color: rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .85);
}

.card--ink .card__title {
  color: #fff;
}

.card--ink .card__text {
  color: rgba(255, 255, 255, .72);
}

.card--flat {
  border-radius: 0;
}

.card--tilt {
  transform: rotate(-1.2deg);
}

.card--pad-lg {
  padding: var(--space-7);
}

.card__title {
  font-size: 1.125rem;
  margin-bottom: .75rem;
}

.card__text {
  color: var(--color-muted);
}

/* ---------- 09 Print Frame & Rule ---------- */
.print-frame {
  position: relative;
  background: #fff;
  border: 1px solid rgba(15, 42, 67, .14);
  box-shadow: 0 0 0 1px rgba(15, 42, 67, .04), var(--shadow-sm);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.print-frame::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(15, 42, 67, .10);
  pointer-events: none;
}

.rule {
  border: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, rgba(15, 42, 67, .18) 0 6px, transparent 6px 12px);
}

/* ---------- 10 Media ---------- */
.media {
  position: relative;
  overflow: hidden;
  min-height: 180px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255, 77, 46, .08), rgba(0, 194, 168, .08));
  border: 1px solid rgba(15, 42, 67, .08);
}

.media--16-9 {
  aspect-ratio: 16 / 9;
  min-height: 0;
}

.media--4-3 {
  aspect-ratio: 4 / 3;
  min-height: 0;
}

.media--1-1 {
  aspect-ratio: 1 / 1;
  min-height: 0;
}

.media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.22, .61, .36, 1);
}

.media:hover img {
  transform: scale(1.03);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(15, 42, 67, .14);
  pointer-events: none;
}

.media--placeholder::before {
  content: "图片占位 · 趣体育";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .18em;
  color: var(--color-muted);
}

/* ---------- 11 Tags ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .25rem .75rem;
  border-radius: 999px;
  background: rgba(0, 194, 168, .12);
  border: 1px solid rgba(0, 194, 168, .35);
  color: var(--color-teal-dark);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1.5;
}

.tag--primary {
  background: rgba(255, 77, 46, .10);
  border-color: rgba(255, 77, 46, .28);
  color: var(--color-primary);
}

.tag--solid {
  background: var(--color-teal);
  border-color: var(--color-teal);
  color: var(--color-secondary);
}

/* ---------- 12 Timeline ---------- */
.timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline__item {
  position: relative;
  padding: 0 0 var(--space-6) var(--space-6);
  border-left: 2px solid rgba(15, 42, 67, .16);
}

.timeline__item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg-light);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.timeline__date {
  display: block;
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .14em;
  color: var(--color-teal-dark);
  margin-bottom: .25rem;
}

/* ---------- 13 Header ---------- */
.site-header {
  position: relative;
  background: var(--color-bg-light);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  z-index: 10;
  pointer-events: none;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: var(--space-4);
  z-index: 500;
  padding: .625rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  font-weight: 800;
  font-size: .875rem;
  text-decoration: none;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-md);
  transition: top .25s ease;
}

.skip-link:focus {
  top: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 600;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

.masthead {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-5) var(--space-3);
  border-bottom: 1px dashed rgba(15, 42, 67, .18);
}

.masthead__brand {
  grid-column: 2;
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
  color: var(--color-secondary);
  line-height: 1;
}

.masthead__brand:hover {
  color: var(--color-secondary);
}

.masthead__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  background: var(--gradient-primary);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 32px;
  font-weight: 900;
  line-height: 1;
  border-radius: 54% 46% 52% 48% / 58% 46% 54% 42%;
  transform: rotate(-10deg);
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
  transition: transform .25s ease;
}

.masthead__mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: inherit;
}

.masthead__brand:hover .masthead__mark {
  transform: rotate(-6deg) scale(1.03);
}

.masthead__titles {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.masthead__name {
  font-size: clamp(1.625rem, 4vw, 2.375rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--color-secondary);
}

.masthead__domain {
  margin-top: .35rem;
  padding-top: .35rem;
  border-top: 1px solid var(--color-secondary);
  font-size: .625rem;
  letter-spacing: .28em;
  font-weight: 700;
  color: var(--color-muted);
  text-transform: uppercase;
  white-space: nowrap;
}

.masthead__aside {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.masthead__aside--left {
  justify-self: start;
}

.masthead__aside--right {
  justify-self: end;
  align-items: flex-end;
  text-align: right;
}

.masthead__label {
  display: inline-block;
  align-self: flex-start;
  font-size: .6875rem;
  font-weight: 800;
  letter-spacing: .12em;
  color: var(--color-secondary);
  background: rgba(0, 194, 168, .12);
  border: 1px solid rgba(0, 194, 168, .4);
  border-radius: 999px;
  padding: .25rem .75rem .25rem .375rem;
}

.masthead__sub {
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.masthead__meta {
  font-size: .9375rem;
  font-weight: 800;
  color: var(--color-secondary);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  white-space: nowrap;
}

.nav-bar {
  background: var(--color-secondary);
  border-top: 3px solid var(--color-primary);
  position: relative;
  z-index: 60;
}

.nav-bar__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 var(--space-5);
  position: relative;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: .25rem;
}

.site-nav a {
  position: relative;
  display: inline-block;
  padding: .5rem 1.125rem;
  color: rgba(255, 255, 255, .88);
  font-size: .9375rem;
  font-weight: 800;
  letter-spacing: .05em;
  text-decoration: none;
  border-radius: 999px;
  transition: background-color .22s ease, color .22s ease, transform .15s ease;
}

.site-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .12);
}

.site-nav a[aria-current="page"] {
  background: var(--color-primary);
  color: #fff;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: .625rem;
  padding: .5rem .625rem;
  background: transparent;
  border: 0;
  border-radius: var(--radius);
  color: rgba(255, 255, 255, .95);
  font-family: var(--font-sans);
  font-size: .8125rem;
  font-weight: 800;
  letter-spacing: .14em;
  line-height: 1;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, .1);
}

.nav-toggle__icon {
  position: relative;
  width: 20px;
  height: 14px;
  display: inline-block;
}

.nav-toggle__icon i {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform .25s ease, top .25s ease, opacity .25s ease;
}

.nav-toggle__icon i:nth-child(1) {
  top: 0;
}

.nav-toggle__icon i:nth-child(2) {
  top: 6px;
}

.nav-toggle__icon i:nth-child(3) {
  top: 12px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

/* ---------- 14 Footer ---------- */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, .82);
}

.site-footer__main {
  border-top: 3px solid var(--color-primary);
  background: linear-gradient(180deg, var(--color-bg-dark) 0%, #141422 100%);
}

.site-footer__grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr 1fr;
  gap: var(--space-7);
  padding: var(--space-8) var(--space-5);
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  margin-bottom: var(--space-4);
}

.site-footer__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 22px;
  font-weight: 900;
  border-radius: 54% 46% 52% 48% / 58% 46% 54% 42%;
  transform: rotate(-8deg);
  transition: transform .25s ease;
}

.site-footer__brand:hover .site-footer__mark {
  transform: rotate(-4deg) scale(1.05);
}

.site-footer__name {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1;
}

.site-footer__tagline {
  color: var(--color-teal);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin: var(--space-2) 0 var(--space-4);
}

.site-footer__statement {
  max-width: 34ch;
  font-size: .875rem;
  color: rgba(255, 255, 255, .62);
  line-height: 1.75;
}

.site-footer__heading {
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .5);
  margin: 0 0 var(--space-4);
}

.site-footer__links {
  display: grid;
  gap: .625rem;
}

.site-footer__links a {
  color: rgba(255, 255, 255, .78);
  font-size: .9375rem;
  transition: color .2s ease, padding-left .2s ease;
}

.site-footer__links a:hover {
  color: var(--color-highlight);
  padding-left: .25rem;
}

.site-footer__contact {
  display: grid;
  gap: .625rem;
  font-size: .875rem;
  color: rgba(255, 255, 255, .72);
}

.site-footer__bar {
  border-top: 1px solid rgba(255, 255, 255, .1);
  background: rgba(0, 0, 0, .25);
}

.site-footer__bar-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  font-size: .8125rem;
  color: rgba(255, 255, 255, .55);
}

.site-footer__copyright {
  margin: 0;
}

.site-footer__icp {
  margin: 0;
  letter-spacing: .08em;
  font-variant-numeric: tabular-nums;
}

/* ---------- 15 Motion & Filter ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease-out, transform .6s ease-out;
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-filter-item] {
  transition: opacity .3s ease, transform .3s ease;
}

[data-filter].is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

[data-filter].is-active:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

.is-filter-in {
  animation: filter-in .35s ease-out both;
}

@keyframes filter-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 16 Focus ---------- */
:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 17 Responsive ---------- */
@media (max-width: 991px) {
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--5 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .masthead__aside--left {
    display: none;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 767px) {
  .band {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-bar__inner {
    justify-content: space-between;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .5rem;
    background: var(--color-secondary);
    border-top: 1px solid rgba(255, 255, 255, .12);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
    z-index: 90;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a {
    border-radius: var(--radius);
    padding: .875rem 1rem;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
  }

  .site-nav a:last-child {
    border-bottom: 0;
  }

  .site-nav a[aria-current="page"] {
    background: rgba(255, 77, 46, .16);
    color: var(--color-highlight);
    box-shadow: inset 3px 0 0 var(--color-primary);
  }
}

@media (max-width: 640px) {
  .masthead {
    grid-template-columns: 1fr;
    justify-items: center;
    padding-top: var(--space-4);
  }

  .masthead__brand {
    grid-column: 1;
    justify-self: center;
  }

  .masthead__aside--right {
    display: none;
  }

  .masthead__mark {
    width: 46px;
    height: 46px;
    font-size: 24px;
  }

  .masthead__name {
    font-size: 1.5rem;
  }

  .nav-bar__inner {
    padding-inline: var(--space-4);
  }

  .grid--2,
  .grid--3,
  .grid--4,
  .grid--5 {
    grid-template-columns: 1fr;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__bar-inner {
    justify-content: center;
    text-align: center;
  }
}

/* ---------- 18 Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .is-filter-in {
    animation: none;
  }

  .media img {
    transition: none;
    transform: none;
  }
}