:root {
  --ob-bg: #3b1d1d;
  --ob-surf: #4a2525;
  --ob-deep: #2a1212;
  --ob-red: #5c1f1f;
  --ob-ink: #fff6e8;
  --ob-mute: #dcc7b4;
  --ob-line: #7a4a3f;
  --ob-gold: #d8cc00;
  --ob-sky: #4cc9f0;
  --ob-ink-gold: #3b1d1d;
  --ob-disp: "Sansita", "Maitree", serif;
  --ob-body: "Maitree", "Noto Serif Thai", serif;
  --ob-container: min(1240px, calc(100% - 48px));
  --ob-gap-sec: 64px;
  --ob-radius: 4px;
  --ob-shadow-double: 0 0 0 4px var(--ob-bg), 0 0 0 5px var(--ob-line);
  --ob-ease: 240ms ease-in-out;
}

/* 1. Reset va tien ich co ban */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body.ob-body {
  margin: 0;
  padding: 0;
  background-color: var(--ob-bg);
  color: var(--ob-ink);
  font-family: var(--ob-body);
  font-size: 17px;
  line-height: 1.85;
  opacity: 1;
}

body.ob-k-home,
body.ob-k-hub,
body.ob-k-child,
body.ob-k-support,
body.ob-k-404 {
  background-color: var(--ob-bg);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 2. Cac the tien ich dac biet */
svg.ob-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

a.ob-skip {
  position: absolute;
  top: -9999px;
  left: -9999px;
  z-index: 100;
  padding: 10px 18px;
  background-color: var(--ob-gold);
  color: var(--ob-ink-gold);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--ob-radius);
}

a.ob-skip:focus {
  top: 12px;
  left: 12px;
}

svg.ob-ic {
  width: 20px;
  height: 20px;
  fill: currentColor;
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

/* 3. Thanh dau trang sticky va menu */
header.ob-top {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--ob-deep);
  width: 100%;
}

div.ob-strip {
  background-color: var(--ob-gold);
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: 16px;
}

p.ob-strip-t {
  margin: 0;
  color: var(--ob-ink-gold);
  font-size: 13px;
  line-height: 28px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
  font-weight: 700;
}

div.ob-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  width: var(--ob-container);
  margin-inline: auto;
  border-bottom: 1px solid var(--ob-line);
}

a.ob-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

a.ob-brand > img.ob-brand-img {
  width: 168px;
  height: 40px;
  object-fit: contain;
}

nav.ob-menu {
  display: flex;
  align-items: center;
  gap: 20px;
}

nav.ob-menu > a.ob-m {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--ob-ink);
  text-decoration: none;
  white-space: nowrap;
  font-weight: 600;
  font-size: 15px;
  border-bottom: 2px solid transparent;
  transition: border-color var(--ob-ease);
}

nav.ob-menu > a.ob-m:hover {
  border-bottom-color: var(--ob-gold);
}

div.ob-bar-r {
  display: flex;
  align-items: center;
  gap: 12px;
}

button.ob-tog {
  display: none;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 12px;
  background-color: transparent;
  border: 1px solid var(--ob-line);
  border-radius: var(--ob-radius);
  color: var(--ob-ink);
  cursor: pointer;
  transition: border-color var(--ob-ease), background-color var(--ob-ease);
}

button.ob-tog:hover {
  border-color: var(--ob-gold);
}

span.ob-tog-t {
  font-size: 14px;
  font-weight: 700;
}

span.ob-tog-i {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 20px;
}

span.ob-tog-i > i {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--ob-gold);
}

div.ob-sheet {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background-color: var(--ob-deep);
  border-bottom: 2px solid var(--ob-gold);
  padding: 16px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}

header.ob-top.ob-open div.ob-sheet {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

div.ob-sheet-c {
  display: flex;
  flex-direction: column;
}

p.ob-sheet-h {
  margin: 0 0 8px 0;
  color: var(--ob-gold);
  font-weight: 700;
  font-size: 15px;
  border-bottom: 1px solid var(--ob-line);
  padding-bottom: 4px;
}

a.ob-s {
  display: block;
  height: 44px;
  line-height: 44px;
  color: var(--ob-ink);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 14px;
  border-bottom: 1px solid var(--ob-line);
}

/* 4. Nut bam va hanh dong */
a.ob-b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--ob-radius);
  font-weight: 700;
  white-space: nowrap;
  text-decoration: none;
  font-size: 16px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--ob-ease), border-color var(--ob-ease), background-color var(--ob-ease);
}

a.ob-b:hover {
  transform: translateY(-2px);
}

a.ob-b.ob-b-gold {
  background-color: var(--ob-gold);
  color: var(--ob-ink-gold);
  border-color: var(--ob-gold);
}

a.ob-b.ob-b-line {
  background-color: transparent;
  border-color: var(--ob-gold);
  color: var(--ob-ink);
}

a.ob-b.ob-b-top {
  min-height: 40px;
  padding: 0 16px;
  font-size: 15px;
}

/* 5. Dieu huong phan cap */
nav.ob-crumb {
  width: var(--ob-container);
  margin-inline: auto;
  margin-top: 16px;
  margin-bottom: 24px;
}

ol.ob-cr {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

li.ob-cl {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
}

li.ob-cl + li.ob-cl::before {
  content: "/";
  margin-right: 8px;
  color: var(--ob-line);
}

a.ob-ca {
  color: var(--ob-mute);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--ob-ease);
}

span.ob-cn {
  color: var(--ob-ink);
  font-weight: 600;
  white-space: nowrap;
}

/* 6. Khung chinh va cac trang */
main.ob-main {
  display: block;
  width: 100%;
}

main.ob-main-home,
main.ob-main-hub,
main.ob-main-child,
main.ob-main-support,
main.ob-main-404 {
  display: block;
}

main.ob-main > section,
main.ob-main > article {
  width: var(--ob-container);
  margin-inline: auto;
  margin-bottom: var(--ob-gap-sec);
}

/* 7. Hero trang chu kieu N-FRAME */
section.ob-hero {
  margin-top: 32px;
}

div.ob-frame {
  position: relative;
  padding: 48px 32px;
  border: 2px solid var(--ob-gold);
  box-shadow: var(--ob-shadow-double);
  background-color: var(--ob-surf);
  border-radius: var(--ob-radius);
}

svg.ob-corner {
  width: 56px;
  height: 56px;
  fill: var(--ob-gold);
  position: absolute;
  pointer-events: none;
}

svg.ob-corner.ob-c1 {
  top: 4px;
  left: 4px;
}

svg.ob-corner.ob-c2 {
  top: 4px;
  right: 4px;
  transform: scaleX(-1);
}

svg.ob-corner.ob-c3 {
  bottom: 4px;
  left: 4px;
  transform: scaleY(-1);
}

svg.ob-corner.ob-c4 {
  bottom: 4px;
  right: 4px;
  transform: scale(-1, -1);
}

div.ob-frame-in {
  text-align: center;
  position: relative;
  z-index: 1;
}

p.ob-eyebrow {
  display: inline-block;
  margin: 0 0 12px 0;
  padding-bottom: 4px;
  color: var(--ob-sky);
  font-size: 14px;
  font-weight: 700;
  border-bottom: 1px solid var(--ob-sky);
}

h1.ob-h1 {
  font-family: var(--ob-body);
  font-weight: 700;
  font-size: clamp(28px, 5vw, 50px);
  line-height: 1.3;
  color: var(--ob-ink);
  margin: 0 0 16px 0;
  text-align: center;
}

p.ob-lead {
  font-size: 18px;
  line-height: 1.6;
  color: var(--ob-mute);
  margin-inline: auto;
  margin-top: 0;
  margin-bottom: 24px;
  max-width: 68ch;
}

div.ob-act {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

ul.ob-strip5 {
  list-style: none;
  margin: 24px 0 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

li.ob-mini {
  border: 2px solid var(--ob-line);
  border-radius: var(--ob-radius);
  overflow: hidden;
  background-color: var(--ob-deep);
}

li.ob-mini img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
  width: 100%;
}

/* 8. Dau trang con */
section.ob-phead {
  position: relative;
  padding: 40px 28px;
  border: 2px solid var(--ob-gold);
  box-shadow: var(--ob-shadow-double);
  background-color: var(--ob-surf);
  border-radius: var(--ob-radius);
  margin-top: 24px;
}

section.ob-phead svg.ob-corner {
  width: 40px;
  height: 40px;
}

div.ob-phead-in {
  text-align: center;
  position: relative;
  z-index: 1;
}

/* 9. Danh gia va tieu chi */
section.ob-review {
  display: block;
}

div.ob-review-h {
  margin-bottom: 24px;
}

h2.ob-h2 {
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.4;
  color: var(--ob-ink);
  margin: 0 0 8px 0;
}

p.ob-review-p {
  color: var(--ob-mute);
  margin: 0;
  font-size: 16px;
}

ol.ob-crit {
  list-style: none;
  counter-reset: crit-count;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

li.ob-ci {
  counter-increment: crit-count;
  background-color: var(--ob-surf);
  border: 1px solid var(--ob-line);
  border-top: 3px solid var(--ob-gold);
  border-radius: var(--ob-radius);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
}

li.ob-ci::before {
  content: counter(crit-count, decimal-leading-zero);
  font-family: var(--ob-disp);
  font-size: 40px;
  line-height: 1;
  font-weight: 700;
  color: var(--ob-gold);
  margin-bottom: 12px;
}

b.ob-ct {
  display: block;
  font-size: 19px;
  font-weight: 700;
  color: var(--ob-ink);
  margin-bottom: 8px;
  line-height: 1.35;
}

span.ob-cs {
  display: block;
  color: var(--ob-mute);
  font-size: 15px;
  line-height: 1.6;
}

a.ob-more {
  display: inline-block;
  white-space: nowrap;
  color: var(--ob-gold);
  text-decoration: underline;
  text-underline-offset: 4px;
  margin-top: 20px;
  font-weight: 700;
  font-size: 15px;
}

/* 10. Bai viet va van ban dai */
section.ob-long,
article.ob-art {
  display: block;
}

div.ob-prose {
  display: block;
}

div.ob-prose h2 {
  position: relative;
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--ob-ink);
  border-bottom: 1px solid var(--ob-line);
  padding-bottom: 8px;
  margin-top: 36px;
  margin-bottom: 16px;
}

div.ob-prose h2::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -4px;
  width: 8px;
  height: 8px;
  background-color: var(--ob-gold);
  transform: rotate(45deg);
}

div.ob-prose h3 {
  font-size: 20px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--ob-sky);
  margin-top: 28px;
  margin-bottom: 12px;
}

div.ob-prose p {
  margin: 0 0 1.15em 0;
  max-width: 74ch;
}

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

div.ob-prose table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 24px 0;
}

div.ob-prose th,
div.ob-prose td {
  padding: 12px 16px;
  border: 1px solid var(--ob-line);
  text-align: left;
}

div.ob-prose th {
  background-color: var(--ob-surf);
  color: var(--ob-ink);
  font-weight: 700;
}

div.ob-prose strong {
  color: var(--ob-ink);
  font-weight: 700;
}

aside.ob-mid {
  background-color: var(--ob-surf);
  border: 1px solid var(--ob-line);
  border-left: 4px solid var(--ob-gold);
  padding: 20px;
  border-radius: var(--ob-radius);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 32px 0;
}

p.ob-mid-t {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--ob-ink);
  flex: 1 1 260px;
}

/* 11. Khu vuc slots va the thao */
section.ob-slots,
section.ob-sports {
  display: block;
}

div.ob-sh {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

div.ob-sh h2.ob-h2 {
  margin: 0;
}

div.ob-sh a.ob-more {
  margin-top: 0;
}

ul.ob-bets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

li.ob-bet {
  background-color: var(--ob-surf);
  border: 1px solid var(--ob-line);
  border-left: 4px solid var(--ob-gold);
  padding: 14px 18px;
  border-radius: var(--ob-radius);
  transition: transform var(--ob-ease), border-color var(--ob-ease);
}

li.ob-bet:hover {
  transform: translateY(-2px);
}

b.ob-bet-t {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--ob-ink);
  margin-bottom: 6px;
  line-height: 1.35;
}

span.ob-bet-s {
  display: block;
  color: var(--ob-mute);
  font-size: 14px;
  line-height: 1.6;
}

/* 12. Thu vien the tro choi va logo */
section.ob-gal {
  display: block;
}

section.ob-gal > h2.ob-h2 {
  margin-bottom: 24px;
}

ul.ob-tiles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

li.ob-t {
  position: relative;
  border: 2px solid var(--ob-gold);
  border-radius: var(--ob-radius);
  background-color: var(--ob-surf);
  overflow: hidden;
  transition: transform var(--ob-ease), border-color var(--ob-ease);
}

li.ob-t:hover {
  transform: translateY(-4px);
}

li.ob-t::before,
li.ob-t::after {
  content: "";
  position: absolute;
  width: 6px;
  height: 6px;
  background-color: var(--ob-sky);
  z-index: 2;
  pointer-events: none;
}

li.ob-t::before {
  top: 4px;
  left: 4px;
}

li.ob-t::after {
  bottom: 4px;
  right: 4px;
}

li.ob-t.ob-t-cover,
li.ob-t.ob-t-live {
  display: block;
}

figure.ob-tf {
  margin: 0;
  display: flex;
  flex-direction: column;
}

div.ob-tp {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: var(--ob-deep);
}

div.ob-tp img {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

figcaption.ob-tc {
  padding: 10px 12px;
  background-color: var(--ob-surf);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

b.ob-tn {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ob-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

span.ob-tk {
  display: block;
  font-size: 13px;
  color: var(--ob-sky);
  line-height: 1.2;
}

ul.ob-logos {
  list-style: none;
  margin: 24px 0 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

li.ob-lg {
  width: 64px;
  height: 64px;
  border: 2px solid var(--ob-line);
  background-color: var(--ob-deep);
  border-radius: var(--ob-radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color var(--ob-ease), transform var(--ob-ease);
}

li.ob-lg:hover {
  border-color: var(--ob-gold);
  transform: translateY(-2px);
}

li.ob-lg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 13. Cau hoi thuong gap */
section.ob-faq {
  display: block;
}

section.ob-faq > h2.ob-h2 {
  margin-bottom: 24px;
}

div.ob-faq-l {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

details.ob-q {
  border: 1px solid var(--ob-line);
  background-color: var(--ob-surf);
  border-radius: var(--ob-radius);
  overflow: hidden;
  transition: border-color var(--ob-ease);
}

details.ob-q[open] {
  border-color: var(--ob-gold);
}

details.ob-q summary {
  min-height: 52px;
  padding: 14px 20px;
  padding-right: 48px;
  position: relative;
  font-weight: 700;
  font-size: 16px;
  color: var(--ob-ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  user-select: none;
}

details.ob-q summary::-webkit-details-marker {
  display: none;
}

details.ob-q summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--ob-disp);
  font-size: 22px;
  font-weight: 700;
  color: var(--ob-gold);
  line-height: 1;
}

details.ob-q[open] summary::after {
  content: "-";
}

div.ob-a {
  padding: 16px 20px;
  border-top: 1px solid var(--ob-line);
  color: var(--ob-mute);
  font-size: 15px;
  line-height: 1.7;
}

div.ob-a p {
  margin: 0 0 1em 0;
}

div.ob-a p:last-child {
  margin-bottom: 0;
}

/* 14. Keu goi hanh dong CTA */
section.ob-cta {
  display: block;
}

div.ob-cta-in {
  background-color: var(--ob-red);
  border: 2px solid var(--ob-gold);
  box-shadow: var(--ob-shadow-double);
  border-radius: var(--ob-radius);
  padding: 36px;
  text-align: center;
}

div.ob-cta-in h2.ob-h2 {
  color: var(--ob-ink);
  margin: 0 0 12px 0;
}

p.ob-cta-p {
  color: var(--ob-mute);
  font-size: 16px;
  line-height: 1.6;
  margin: 0 auto 24px auto;
  max-width: 60ch;
}

/* 15. Chan trang */
footer.ob-foot {
  background-color: var(--ob-deep);
  width: 100%;
  margin-top: var(--ob-gap-sec);
  padding-bottom: 0;
}

div.ob-band {
  height: 24px;
  width: 100%;
  background: repeating-linear-gradient(45deg, var(--ob-gold) 0, var(--ob-gold) 2px, var(--ob-surf) 2px, var(--ob-surf) 12px),
              repeating-linear-gradient(-45deg, var(--ob-gold) 0, var(--ob-gold) 2px, var(--ob-surf) 2px, var(--ob-surf) 12px);
  background-blend-mode: multiply;
  border-top: 1px solid var(--ob-gold);
  border-bottom: 1px solid var(--ob-line);
}

div.ob-foot-in {
  width: var(--ob-container);
  margin-inline: auto;
  padding-top: 48px;
  padding-bottom: 40px;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.7fr);
  gap: 40px;
}

div.ob-fgrid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

div.ob-fc {
  display: flex;
  flex-direction: column;
}

p.ob-fh {
  margin: 0 0 14px 0;
  color: var(--ob-gold);
  font-weight: 700;
  font-size: 16px;
}

a.ob-fa {
  display: block;
  height: 36px;
  line-height: 36px;
  color: var(--ob-mute);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 14px;
}

aside.ob-fbox {
  border: 2px solid var(--ob-gold);
  border-radius: var(--ob-radius);
  padding: 20px;
  background-color: var(--ob-surf);
  display: flex;
  flex-direction: column;
}

p.ob-fbox-h {
  margin: 0 0 10px 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--ob-ink);
  line-height: 1.35;
}

p.ob-fbox-p {
  margin: 0 0 14px 0;
  color: var(--ob-mute);
  font-size: 14px;
  line-height: 1.6;
}

a.ob-fbox-a {
  color: var(--ob-gold);
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  text-decoration: underline;
  text-underline-offset: 4px;
}

div.ob-foot-bot {
  width: var(--ob-container);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--ob-line);
  padding: 16px 0;
}

span.ob-age {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 2px solid var(--ob-gold);
  border-radius: var(--ob-radius);
  color: var(--ob-gold);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

p.ob-legal {
  margin: 0;
  font-size: 13px;
  color: var(--ob-mute);
  line-height: 1.5;
}

/* 16. Thanh duoi cung mobile */
nav.ob-nav4 {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background-color: var(--ob-red);
  border-top: 2px solid var(--ob-gold);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  height: 60px;
}

a.ob-n {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--ob-ink);
  text-decoration: none;
  height: 100%;
  transition: background-color var(--ob-ease);
}

a.ob-n svg.ob-ic {
  width: 22px;
  height: 22px;
}

span.ob-n-t {
  font-size: 12px;
  white-space: nowrap;
  line-height: 1;
}

a.ob-n.ob-n-join {
  background-color: var(--ob-gold);
  color: var(--ob-ink-gold);
  font-weight: 700;
}

a.ob-n.ob-n-join svg.ob-ic {
  fill: var(--ob-ink-gold);
}

/* 17. Media query cho man hinh duoi 1000px */
@media (max-width: 999px) {
  nav.ob-menu {
    display: none;
  }

  button.ob-tog {
    display: flex;
  }

  nav.ob-nav4 {
    display: grid;
  }

  footer.ob-foot {
    padding-bottom: 96px;
  }

  div.ob-foot-in {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

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

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

/* 18. Media query cho man hinh duoi 700px */
@media (max-width: 699px) {
  :root {
    --ob-container: calc(100% - 32px);
    --ob-gap-sec: 44px;
  }

  div.ob-frame {
    padding: 36px 20px;
  }

  header.ob-top.ob-open div.ob-sheet {
    grid-template-columns: minmax(0, 1fr);
  }

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

  ul.ob-bets {
    grid-template-columns: minmax(0, 1fr);
  }

  ul.ob-strip5 {
    gap: 8px;
  }
}

/* 19. Media query cho man hinh duoi 520px */
@media (max-width: 519px) {
  body.ob-body {
    font-size: 16px;
  }

  svg.ob-corner {
    width: 40px;
    height: 40px;
  }

  ol.ob-crit {
    grid-template-columns: minmax(0, 1fr);
  }

  div.ob-fgrid {
    grid-template-columns: minmax(0, 1fr);
  }

  li.ob-lg {
    width: 56px;
    height: 56px;
  }

  section.ob-phead {
    padding: 28px 16px;
  }

  div.ob-cta-in {
    padding: 24px 16px;
  }
}
a.ob-brand > svg.ob-brand-img {
  display: block;
  width: 168px;
  height: 40px;
}

a.ob-ca {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

a.ob-skip {
  left: 0;
}

a.ob-skip:focus {
  left: 12px;
}