/* =========================================
   Shared page layout
   ========================================= */
.page-main {
  min-height: 60vh;
  background-color: var(--bg-section-2);
}

.page-hero {
  padding: 48px 0 32px;
  text-align: center;
  position: relative;
  background-color: var(--bg-section-1);
  border-bottom: 1px solid var(--section-divider);
}

.page-section {
  padding: 40px 0 80px;
  background-color: var(--bg-section-2);
}

.page-section--alt {
  background-color: var(--bg-section-3);
  border-top: 1px solid var(--section-divider);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(240, 196, 25, 0.08), transparent 70%);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-breadcrumb {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.page-breadcrumb a:hover {
  color: var(--accent-gold);
}

.page-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.page-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Nav active + mobile */
.nav-links a.active {
  color: var(--accent-gold);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.nav-links.is-open {
  display: flex !important;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.98);
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  z-index: 120;
}

.footer-tagline {
  color: var(--accent-gold);
}

.social-links img {
  display: block;
}

.card-actions .btn {
  text-align: center;
}

/* =========================================
   BXH hoàn phí
   ========================================= */
.bxh-page {
  background: var(--bg-section-1);
}

.bxh-page .page-main {
  background: transparent;
}

.bxh-hero {
  position: relative;
  padding: 72px 0 48px;
  text-align: center;
  overflow: hidden;
  background-color: var(--bg-section-1);
}

.bxh-hero-bg {
  position: absolute;
  inset: 0;
  background: url('../img/vnbc/index/background.png') no-repeat center top;
  background-size: cover;
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
}

.bxh-hero-glow {
  position: absolute;
  width: 272px;
  height: 254px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 196, 25, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.bxh-hero-glow--left {
  left: -59px;
  top: 55%;
}

.bxh-hero-glow--right {
  right: -40px;
  top: 35%;
}

.bxh-hero .container {
  position: relative;
  z-index: 1;
}

.bxh-hero-badge {
  margin-bottom: 16px;
}

.bxh-hero-title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.08;
  letter-spacing: -1px;
  margin-bottom: 16px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.bxh-hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
}

.bxh-content {
  padding: 0 0 96px;
  position: relative;
  background-color: var(--bg-section-2);
  border-top: 1px solid var(--section-divider);
}

.bxh-content::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: min(900px, 90vw);
  height: 200px;
  background: radial-gradient(ellipse 70% 100% at 50% 0%, rgba(240, 196, 25, 0.06), transparent);
  pointer-events: none;
}

.bxh-week-label {
  display: block;
  width: fit-content;
  margin: 0 auto 40px;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-gold);
  border: 1px solid rgba(240, 196, 25, 0.35);
  border-radius: var(--radius-full);
  background: rgba(240, 196, 25, 0.08);
}

.bxh-podium {
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 20px;
  align-items: end;
  max-width: 960px;
  margin: 0 auto 56px;
}

.podium-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 28px 20px 0;
  border-radius: 20px 20px 0 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
  min-height: 260px;
}

.podium-card--first {
  min-height: 300px;
  border-color: rgba(240, 196, 25, 0.35);
  background: linear-gradient(180deg, rgba(240, 196, 25, 0.14) 0%, rgba(255, 255, 255, 0.03) 55%);
  box-shadow: 0 0 48px rgba(240, 196, 25, 0.08);
}

.podium-card--second {
  transform: translateY(16px);
}

.podium-card--third {
  transform: translateY(28px);
}

.podium-crown {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 22px;
  filter: drop-shadow(0 2px 6px rgba(240, 196, 25, 0.4));
}

.podium-medal {
  font-size: 28px;
  line-height: 1;
  margin-bottom: 8px;
}

.podium-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: var(--accent-gold);
  background: rgba(240, 196, 25, 0.12);
  border: 2px solid rgba(240, 196, 25, 0.35);
  margin-bottom: 12px;
}

.podium-card--first .podium-avatar {
  width: 76px;
  height: 76px;
  font-size: 24px;
}

.podium-rank {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(240, 196, 25, 0.85);
  margin-bottom: 4px;
}

.podium-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.podium-card--first .podium-name {
  font-size: 20px;
}

.podium-rebate {
  font-size: clamp(14px, 1.8vw, 17px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--accent-gold);
  margin-bottom: 16px;
  max-width: 100%;
  padding: 0 8px;
}

.podium-pedestal {
  width: 100%;
  margin-top: auto;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(180deg, rgba(240, 196, 25, 0.2), rgba(255, 255, 255, 0.04));
}

.podium-card--first .podium-pedestal {
  height: 72px;
}

.podium-card--second .podium-pedestal {
  height: 48px;
  opacity: 0.85;
}

.podium-card--third .podium-pedestal {
  height: 32px;
  opacity: 0.7;
}

.bxh-leaderboard {
  max-width: 960px;
  margin: 0 auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.bxh-leaderboard-head,
.bxh-row {
  display: grid;
  grid-template-columns: 72px 1fr minmax(160px, 220px);
  gap: 16px;
  align-items: center;
  padding: 16px 24px;
}

.bxh-leaderboard-head {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-color);
}

.bxh-leaderboard-head span:nth-child(3),
.bxh-row-rebate {
  text-align: right;
}

.bxh-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.2s ease;
}

.bxh-row:last-child {
  border-bottom: none;
}

.bxh-row:hover {
  background: rgba(255, 255, 255, 0.03);
}

.bxh-row-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  font-weight: 700;
  font-size: 15px;
}

.bxh-row-trader {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.bxh-row-uid {
  display: block;
  font-size: 15px;
  font-weight: 600;
  word-break: break-all;
}

.bxh-row-avatar {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-gold);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.bxh-row-rebate {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--accent-gold);
}

.bxh-empty {
  padding: 32px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
}

.bxh-footnote {
  margin-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

/* =========================================
   Registration modals
   ========================================= */
body.vnbc-modal-open {
  overflow: hidden;
}

.vnbc-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.vnbc-modal[hidden] {
  display: none !important;
}

.vnbc-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(4px);
}

.vnbc-modal-dialog {
  position: relative;
  z-index: 1;
  width: 100%;
  max-height: calc(100vh - 48px);
  overflow: auto;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(145deg, rgba(38, 38, 38, 0.98) 0%, rgba(18, 18, 18, 0.99) 100%);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
  outline: none;
}

.vnbc-modal-dialog--hoanphi {
  max-width: 720px;
}

.vnbc-modal-dialog--exchange {
  max-width: 640px;
}

.vnbc-modal-title--exchange {
  font-size: 20px;
  letter-spacing: 0.06em;
}

.vnbc-ref-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 8px;
}

.vnbc-ref-link-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  margin-bottom: 24px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.4);
}

.vnbc-ref-link {
  flex: 1;
  min-width: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--accent-gold);
  word-break: break-all;
}

.vnbc-ref-copy {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  opacity: 0.85;
  transition: var(--transition);
}

.vnbc-ref-copy:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.06);
}

.vnbc-ref-copy.is-copied {
  opacity: 1;
  background: rgba(240, 196, 25, 0.12);
}

.vnbc-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.vnbc-modal-submit--link {
  display: block;
  text-align: center;
  text-decoration: none;
  color: #1a1a1a;
  background: linear-gradient(90deg, #f0c419 0%, #e8b80a 50%, #d4a017 100%);
}

.vnbc-modal-submit--link:hover {
  color: #1a1a1a;
}

.vnbc-modal-btn-outline {
  width: 100%;
  padding: 16px 24px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: transparent;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  transition: var(--transition);
}

.vnbc-modal-btn-outline:hover {
  border-color: rgba(240, 196, 25, 0.45);
  color: var(--accent-gold);
}

.vnbc-modal-dialog--doitac {
  max-width: 1040px;
}

.vnbc-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text-primary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  transition: var(--transition);
}

.vnbc-modal-close:hover {
  border-color: rgba(240, 196, 25, 0.4);
  color: var(--accent-gold);
}

.vnbc-modal-layout {
  display: flex;
  align-items: stretch;
  min-height: 320px;
}

.vnbc-modal-layout--split {
  display: grid;
  grid-template-columns: 1fr min(340px, 38%);
}

.vnbc-modal-main {
  flex: 1;
  padding: 36px 32px 32px;
  min-width: 0;
}

.vnbc-modal-title {
  font-size: 22px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.vnbc-modal-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.vnbc-modal-desc strong {
  font-weight: 700;
}

.vnbc-modal-success {
  padding: 14px 16px;
  margin-bottom: 20px;
  border-radius: 10px;
  border: 1px solid rgba(240, 196, 25, 0.35);
  background: rgba(240, 196, 25, 0.08);
  color: var(--accent-gold);
  font-size: 14px;
}

.vnbc-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.vnbc-field {
  margin-bottom: 14px;
}

.vnbc-field label,
.vnbc-field-label {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 8px;
}

.vnbc-field-label {
  margin-top: 4px;
  margin-bottom: 10px;
}

.vnbc-field .req {
  color: #ef4444;
}

.vnbc-field input,
.vnbc-field select,
.vnbc-field textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 14px;
}

.vnbc-field input::placeholder,
.vnbc-field textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.vnbc-field input:focus,
.vnbc-field select:focus,
.vnbc-field textarea:focus {
  outline: none;
  border-color: rgba(240, 196, 25, 0.45);
}

.vnbc-select-wrap {
  position: relative;
}

.vnbc-select-wrap select {
  appearance: none;
  cursor: pointer;
  padding-right: 36px;
}

.vnbc-select-wrap::after {
  content: '▾';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.45);
  pointer-events: none;
}

.vnbc-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 16px;
  margin-bottom: 16px;
}

.vnbc-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

.vnbc-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-gold);
}

.vnbc-modal-submit {
  width: 100%;
  margin-top: 8px;
  padding: 16px 24px;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-family);
  color: #fff;
  cursor: pointer;
  background: linear-gradient(90deg, #3a3428 0%, #a8840f 45%, #f0c419 100%);
  transition: var(--transition);
}

.vnbc-modal-submit:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.vnbc-modal-brand {
  width: 72px;
  flex-shrink: 0;
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.vnbc-modal-brand-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  transform: rotate(-90deg);
  white-space: nowrap;
}

.vnbc-modal-brand-inner img {
  height: 36px;
  width: auto;
  object-fit: contain;
}

.vnbc-modal-brand-inner span {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.vnbc-modal-benefits {
  padding: 28px 24px;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.25);
  overflow-y: auto;
}

.vnbc-benefits-logo {
  height: 40px;
  width: auto;
  margin-bottom: 8px;
}

.vnbc-benefits-tagline {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.vnbc-benefits-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.vnbc-benefits-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.vnbc-benefits-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(240, 196, 25, 0.15);
  color: var(--accent-gold);
  font-size: 12px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vnbc-benefits-list strong {
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

.vnbc-benefits-list span {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.modal-shell-page {
  min-height: 40vh;
}

.modal-shell-page #site-footer {
  display: none;
}

@media (max-width: 900px) {
  .vnbc-modal-layout--split {
    grid-template-columns: 1fr;
  }

  .vnbc-modal-benefits {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .vnbc-modal-brand {
    display: none;
  }
}

@media (max-width: 600px) {
  .vnbc-modal {
    padding: 12px;
  }

  .vnbc-modal-main {
    padding: 28px 20px 24px;
  }

  .vnbc-form-row {
    grid-template-columns: 1fr;
  }

  .vnbc-checkbox-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================
   Airdrop — Coming soon
   ========================================= */
.airdrop-page #site-footer {
  display: none;
}

.airdrop-coming {
  position: relative;
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px 80px;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-section-1) 0%, var(--bg-section-3) 55%, var(--bg-section-2) 100%);
}

.airdrop-watermark {
  position: absolute;
  right: -4%;
  top: 50%;
  transform: translateY(-50%);
  font-size: clamp(220px, 38vw, 520px);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.07);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.airdrop-coming-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 720px;
  text-align: center;
}

.airdrop-title {
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.airdrop-desc {
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
}

.airdrop-desc strong {
  color: var(--text-primary);
  font-weight: 700;
}

.airdrop-countdown {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 88px;
  padding: 16px 12px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}

.countdown-value {
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 800;
  line-height: 1;
  color: var(--accent-gold);
  font-variant-numeric: tabular-nums;
}

.countdown-label {
  margin-top: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

.countdown-sep {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  color: var(--accent-gold);
  line-height: 1;
  padding-bottom: 20px;
}

.airdrop-notify {
  display: flex;
  max-width: 520px;
  margin: 0 auto 14px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
}

.airdrop-notify input {
  flex: 1;
  min-width: 0;
  padding: 16px 18px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 15px;
}

.airdrop-notify input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.airdrop-notify input:focus {
  outline: none;
}

.airdrop-notify-btn {
  flex-shrink: 0;
  padding: 16px 24px;
  background: var(--accent-gold);
  color: #000;
  font-size: 15px;
  font-weight: 800;
  font-family: var(--font-family);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.airdrop-notify-btn:hover {
  background: var(--accent-gold-hover);
}

.airdrop-disclaimer {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 48px;
}

.airdrop-success {
  max-width: 520px;
  margin: 0 auto 24px;
  padding: 16px 20px;
  border-radius: 10px;
  border: 1px solid rgba(240, 196, 25, 0.35);
  background: rgba(240, 196, 25, 0.08);
  color: var(--accent-gold);
  font-size: 15px;
  font-weight: 500;
}

.airdrop-social-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.35);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  justify-content: center;
}

.airdrop-social-divider::before,
.airdrop-social-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.12);
  max-width: 140px;
}

.airdrop-social-divider span {
  flex-shrink: 0;
}

.airdrop-social {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.airdrop-social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.airdrop-social-btn:hover {
  border-color: rgba(240, 196, 25, 0.4);
  color: var(--accent-gold);
}

.airdrop-social-btn img,
.airdrop-social-btn svg {
  flex-shrink: 0;
  opacity: 0.85;
}

@media (max-width: 600px) {
  .airdrop-watermark {
    right: -20%;
    opacity: 0.6;
  }

  .countdown-unit {
    min-width: 72px;
    padding: 12px 8px 10px;
  }

  .countdown-sep {
    padding-bottom: 16px;
  }

  .airdrop-notify {
    flex-direction: column;
    border-radius: 12px;
  }

  .airdrop-notify input {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .airdrop-notify-btn {
    width: 100%;
    border-radius: 0 0 10px 10px;
  }

  .airdrop-social {
    flex-direction: column;
    align-items: stretch;
  }

  .airdrop-social-btn {
    justify-content: center;
  }
}

/* =========================================
   Forms
   ========================================= */
.form-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

.form-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 15px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: rgba(240, 196, 25, 0.5);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.form-check input {
  margin-top: 3px;
  accent-color: var(--accent-gold);
}

.form-sidebar {
  position: sticky;
  top: 100px;
}

.info-card {
  background: linear-gradient(145deg, rgba(240, 196, 25, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(240, 196, 25, 0.2);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 20px;
}

.info-card h3 {
  font-size: 18px;
  margin-bottom: 16px;
}

.info-card ul {
  list-style: none;
}

.info-card li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.info-card li::before {
  content: '✦';
  position: absolute;
  left: 0;
  color: var(--accent-gold);
}

.form-success {
  text-align: center;
  padding: 60px 24px;
  background: var(--card-bg);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius-lg);
  max-width: 560px;
  margin: 0 auto;
}

.form-success h2 {
  color: var(--stat-green);
  margin-bottom: 12px;
}

/* =========================================
   Chi tiết sàn — hướng dẫn 3 tab
   ========================================= */
.detail-page .page-main {
  background: var(--bg-section-2);
}

.detail-page .page-section {
  padding-top: 32px;
  padding-bottom: 0;
  background: transparent;
}

.detail-related {
  margin-top: 56px;
  padding: 48px max(24px, calc(50vw - 480px)) 16px;
  background-color: var(--bg-section-3);
  border-top: 1px solid var(--section-divider);
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
}

.container--guide {
  max-width: 960px;
}

.detail-breadcrumb {
  margin-bottom: 28px;
}

.detail-guide-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 40px 40px;
  margin-bottom: 56px;
}

.detail-guide-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 32px;
}

.detail-guide-logo {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  object-fit: contain;
}

.detail-guide-title {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.detail-guide-subtitle {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 640px;
}

.detail-ref-strip {
  display: grid;
  grid-template-columns: 1fr 1.4fr auto;
  gap: 22px 28px;
  align-items: stretch;
  padding: 24px 26px;
  margin-bottom: 40px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(212, 175, 55, 0.22);
  background: rgba(212, 175, 55, 0.06);
}

.detail-ref-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  justify-content: flex-start;
}

.detail-ref-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  line-height: 1.2;
  min-height: 16px;
  display: flex;
  align-items: center;
}

/* Đồng nhất chiều cao các control trong strip: code button, link row, copy, register */
.detail-ref-strip .ref-code-box,
.detail-ref-strip .detail-ref-link-row,
.detail-ref-strip .detail-ref-copy-link,
.detail-ref-strip .detail-ref-register {
  height: 42px;
  box-sizing: border-box;
}

.detail-ref-strip .ref-code-box {
  width: 100%;
  max-width: none;
  padding: 0 12px;
  justify-content: space-between;
}

.detail-ref-link-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.25);
}

.detail-ref-link {
  flex: 1;
  min-width: 0;
  font-size: 13px;
  color: var(--accent-gold);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: inline-flex;
  align-items: center;
  height: 100%;
}

.detail-ref-link:hover {
  text-decoration: underline;
}

.detail-ref-copy-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px !important;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.detail-ref-copy-link img {
  display: block;
}

.detail-ref-copy-link:hover {
  border-color: var(--accent-gold);
}

.detail-ref-register {
  align-self: start;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  margin-top: 24px; /* label height (16px) + gap (8px) để thẳng với input bên cạnh */
  line-height: 1;
}

.ref-code-icon {
  display: block;
  flex-shrink: 0;
  opacity: 0.9;
}

@media (max-width: 768px) {
  .detail-ref-strip {
    grid-template-columns: 1fr;
  }

  .detail-ref-register {
    width: 100%;
    text-align: center;
    margin-top: 0;
  }
}

.detail-guide-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 32px;
}

.detail-guide-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px 14px;
  margin-bottom: -1px;
  border: none;
  border-bottom: 2px solid transparent;
  background: none;
  color: rgba(255, 255, 255, 0.45);
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.detail-guide-tab:hover {
  color: rgba(255, 255, 255, 0.75);
}

.detail-guide-tab.is-active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-gold);
}

.detail-guide-tab.is-active .detail-guide-tab-icon {
  color: var(--accent-gold);
}

.detail-guide-tab-icon {
  display: flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.35);
}

.detail-guide-tab-label {
  line-height: 1.3;
}

.detail-guide-content {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 32px 40px;
  align-items: start;
}

.detail-guide-content--json {
  grid-template-columns: 1fr;
  max-width: 720px;
}

.detail-case-block {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* Khoảng cách rộng giữa các phương án/mục đổi ref (nhiều case-block trong cùng panel) */
.detail-case-block + .detail-case-block {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
}

.detail-case-lead {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.detail-case-or {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-gold);
  margin: 4px 0;
}

.detail-case-code-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.detail-case-condition {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(240, 196, 25, 0.25);
  background: rgba(240, 196, 25, 0.08);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  margin: 0;
}

.detail-case-note,
.detail-case-contact {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

.detail-case-contact {
  margin-top: 8px;
}

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

.detail-empty {
  color: var(--text-secondary);
  font-size: 14px;
}

.detail-step-content {
  flex: 1;
  min-width: 0;
}

.detail-step-figure {
  margin: 12px 0 0;
}

.detail-step-img {
  display: block;
  max-width: 100%;
  width: auto;
  height: auto;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.detail-guide-steps--json .detail-step-body {
  margin: 0;
}
.ref-code-box--margin {
  margin-top: 10px;
}
.ref-code-box--inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  vertical-align: middle;
}

.detail-rebate {
  margin-top: 28px;
  padding: 20px 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(212, 175, 55, 0.18);
  background: rgba(255, 255, 255, 0.03);
}

.detail-rebate-title {
  font-size: 16px;
  font-weight: 800;
  margin: 0 0 12px;
  color: var(--text-primary);
}

.detail-rebate-list {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.detail-rebate-list li {
  margin-bottom: 6px;
}

.detail-rebate-list li:last-child {
  margin-bottom: 0;
}

.detail-rebate-bonus {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-gold);
  text-decoration: none;
}

.detail-rebate-bonus:hover {
  text-decoration: underline;
}

.detail-highlight {
  color: var(--accent-gold);
}

.detail-guide-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 14px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.detail-guide-video iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.detail-guide-video--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(30, 30, 30, 0.95), rgba(18, 18, 18, 0.98));
}

.detail-guide-play {
  width: 68px;
  height: 48px;
  border-radius: 12px;
  background: #ff0000;
  position: relative;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.detail-guide-play::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-35%, -50%);
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
}

.detail-guide-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.detail-guide-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.detail-guide-steps li:last-child {
  margin-bottom: 0;
}

.detail-step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(240, 196, 25, 0.18);
  color: var(--accent-gold);
  font-size: 13px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-step-title {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.detail-step-body {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

.detail-inline-link {
  padding: 0;
  border: none;
  background: none;
  font: inherit;
  color: var(--accent-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.detail-inline-link:hover {
  color: #ffe566;
}

.detail-guide-footer {
  margin-top: 36px;
  display: flex;
  justify-content: center;
}

.detail-guide-cta {
  width: 100%;
  max-width: 420px;
  padding: 16px 32px;
  border: none;
  border-radius: 12px;
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 800;
  color: #1a1a1a;
  cursor: pointer;
  background: linear-gradient(90deg, #c9a80a 0%, #f0c419 45%, #ffe566 100%);
  transition: var(--transition);
}

.detail-guide-cta:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.detail-related .section-title {
  margin-bottom: 20px;
}

.detail-hero {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 40px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 40px;
}

.detail-icon {
  width: 88px;
  height: 88px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 50%;
}

.detail-percent {
  font-size: 56px;
  font-weight: 900;
  color: var(--accent-gold);
  line-height: 1;
}

.detail-percent span {
  font-size: 24px;
  opacity: 0.7;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

.detail-panel {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.detail-panel h3 {
  font-size: 20px;
  margin-bottom: 20px;
}

.detail-steps {
  list-style: none;
}

.detail-steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 16px;
  font-size: 15px;
  color: var(--text-secondary);
}

.step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(240, 196, 25, 0.15);
  color: var(--accent-gold);
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ref-code-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px dashed rgba(240, 196, 25, 0.4);
  border-radius: var(--radius-sm);
}

.ref-code-box code {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-gold);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.related-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.related-card:hover {
  border-color: rgba(240, 196, 25, 0.35);
  transform: translateY(-2px);
}

@media (max-width: 1024px) {
  .form-layout,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .form-sidebar {
    position: static;
  }

  .detail-hero {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }

  .detail-guide-card {
    padding: 24px 20px 28px;
  }

  .detail-guide-content {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .detail-guide-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0 20px;
    padding-bottom: 4px;
  }

  .detail-guide-tabs::-webkit-scrollbar {
    display: none;
  }

  .detail-guide-tab {
    flex-shrink: 0;
    font-size: 13px;
  }

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

  .bxh-leaderboard-head,
  .bxh-row {
    grid-template-columns: 56px 1fr minmax(120px, 1fr);
    padding: 14px 16px;
  }
}

@media (max-width: 768px) {
  .bxh-podium {
    grid-template-columns: 1fr;
    max-width: 360px;
  }

  .podium-card--second,
  .podium-card--third {
    transform: none;
  }

  .podium-card--first {
    order: -1;
  }

  .bxh-leaderboard-head {
    display: none;
  }

  .bxh-row {
    grid-template-columns: 48px 1fr;
    grid-template-rows: auto auto;
    gap: 8px 12px;
  }

  .bxh-row-rebate {
    grid-column: 2;
    text-align: left;
    font-size: 13px;
    margin-top: 4px;
  }
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }

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