/* =========================================
   STAKE.US PROMO — bostonsportsreview.com
   CSS Custom Properties & Global Styles
   ========================================= */

:root {
  --clr-bg: #112738;
  --clr-surface: #1A2C38;
  --clr-surface2: #213743;
  --clr-border: #2F4553;
  --clr-accent: #1475E1;
  --clr-accent-light: #3B82F6;
  --clr-text: #FFFFFF;
  --clr-muted: #B1BAD3;
  --clr-badge-bg: #173321;
  --clr-badge-text: #00E701;
  --clr-code-bg: #314455;
  --clr-success: #00E701;
  --clr-warning: #F5A524;
  --clr-secondary-btn: #395563;

  --ff-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --ff-body: 'Inter', system-ui, -apple-system, sans-serif;
  --ff-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', monospace;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 1.875rem;
  --fs-3xl: 2.25rem;

  --lh-tight: 1.3;
  --lh-normal: 1.7;

  --sp-xs: 0.5rem;
  --sp-sm: 0.75rem;
  --sp-md: 1rem;
  --sp-lg: 1.5rem;
  --sp-xl: 2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4rem;
  --sp-4xl: 5rem;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 50%;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-accent: 0 4px 16px rgba(20, 117, 225, 0.25);

  --max-w: 1200px;
  --max-w-narrow: 820px;
  --header-h: 68px;
}

/* =========================================
   RESET & BASE
   ========================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: var(--lh-normal);
  color: var(--clr-text);
  background-color: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--clr-accent-light);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--clr-text);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--clr-accent-light);
  outline-offset: 2px;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--ff-heading);
  font-weight: 700;
  line-height: var(--lh-tight);
  color: var(--clr-text);
}

strong {
  font-weight: 600;
}

/* =========================================
   LAYOUT
   ========================================= */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-lg);
}

.narrow-content {
  max-width: var(--max-w-narrow);
  margin-inline: auto;
}

/* =========================================
   HEADER / MASTHEAD
   ========================================= */
.masthead-strip {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  height: var(--header-h);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.masthead-strip.scrolled {
  background: rgba(17, 39, 56, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-lg);
  height: 100%;
  gap: var(--sp-md);
}

.brand-anchor {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.brand-anchor img {
  height: 36px;
  width: auto;
}

.nav-roster {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
}

.nav-link {
  padding: var(--sp-xs) var(--sp-sm);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-muted);
  transition: color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--clr-text);
  background: var(--clr-surface);
}

.nav-link--active {
  color: var(--clr-text);
  background: var(--clr-surface2);
}

.masthead-cta {
  font-size: var(--fs-sm);
  padding: var(--sp-xs) var(--sp-md);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-xs);
  z-index: 1010;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.mobile-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =========================================
   BUTTONS / ACTION TRIGGERS
   ========================================= */
.action-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xs);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
  white-space: nowrap;
}

.action-trigger--accent {
  background: var(--clr-accent);
  color: var(--clr-text);
}

.action-trigger--accent:hover {
  background: var(--clr-accent-light);
  box-shadow: var(--shadow-accent);
  color: var(--clr-text);
}

.action-trigger--secondary {
  background: var(--clr-secondary-btn);
  color: var(--clr-text);
}

.action-trigger--secondary:hover {
  background: var(--clr-border);
  color: var(--clr-text);
}

.action-trigger--compact {
  padding: 0.5rem 1rem;
  font-size: var(--fs-sm);
}

.action-trigger:active {
  transform: scale(0.97);
}

.cta-cluster {
  display: flex;
  gap: var(--sp-md);
  margin-top: var(--sp-xl);
  flex-wrap: wrap;
}

/* =========================================
   HERO / OFFER BANNER
   ========================================= */
.offer-banner {
  padding-top: calc(var(--header-h) + var(--sp-3xl));
  padding-bottom: var(--sp-3xl);
  background: var(--clr-bg);
  overflow: hidden;
}

.offer-banner--compact {
  padding-bottom: var(--sp-2xl);
  text-align: center;
}

.offer-banner--compact .code-display {
  margin-inline: auto;
}

.offer-banner__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3xl);
  align-items: center;
}

.offer-banner__heading {
  font-size: var(--fs-2xl);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--sp-md);
  max-width: 560px;
}

.offer-banner__sub {
  font-size: var(--fs-lg);
  color: var(--clr-warning);
  font-weight: 600;
  margin-bottom: var(--sp-xl);
}

.offer-banner__actions {
  display: flex;
  gap: var(--sp-md);
  margin-top: var(--sp-lg);
  flex-wrap: wrap;
}

.offer-banner__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.offer-banner__illustration {
  width: 100%;
  max-width: 480px;
  height: auto;
}

/* =========================================
   PROMO CODE WIDGET / CODE DISPLAY
   ========================================= */
.code-display {
  background: var(--clr-surface);
  border: 2px solid var(--clr-accent);
  border-radius: var(--radius-lg);
  padding: var(--sp-lg);
  max-width: 500px;
}

.code-display__status {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  margin-bottom: var(--sp-md);
  flex-wrap: wrap;
}

.code-display__badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--clr-badge-bg);
  color: var(--clr-badge-text);
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.code-display__date {
  font-size: var(--fs-xs);
  color: var(--clr-muted);
}

.code-display__row {
  display: flex;
  gap: var(--sp-sm);
  align-items: center;
  margin-bottom: var(--sp-md);
}

.code-display__value {
  flex: 1;
  background: var(--clr-code-bg);
  color: var(--clr-text);
  font-family: var(--ff-mono);
  font-weight: 700;
  font-size: var(--fs-xl);
  padding: 0.75rem var(--sp-md);
  border-radius: var(--radius-md);
  text-align: center;
  letter-spacing: 0.05em;
  user-select: all;
}

.code-display__copy {
  flex-shrink: 0;
}

.code-display__copy.copied {
  background: var(--clr-success);
  color: #112738;
}

.code-display__note {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  line-height: 1.5;
}

/* =========================================
   CONTENT SECTIONS
   ========================================= */
.content-segment {
  padding: var(--sp-3xl) var(--sp-lg);
  background: var(--clr-bg);
}

.content-segment--alt {
  background: var(--clr-surface);
}

.content-segment p {
  color: var(--clr-muted);
  margin-bottom: var(--sp-md);
  max-width: 75ch;
}

.content-segment p:last-child {
  margin-bottom: 0;
}

.segment-title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: var(--sp-xl);
  position: relative;
  padding-bottom: var(--sp-sm);
}

.segment-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--clr-accent);
  border-radius: 2px;
}

/* =========================================
   STEP CARDS
   ========================================= */
.step-cards {
  display: flex;
  flex-direction: column;
  gap: var(--sp-lg);
  margin-top: var(--sp-xl);
  margin-bottom: var(--sp-lg);
}

.step-card {
  display: flex;
  gap: var(--sp-lg);
  align-items: flex-start;
  background: var(--clr-surface2);
  border-radius: var(--radius-lg);
  padding: var(--sp-lg);
  border: 1px solid var(--clr-border);
  transition: border-color 0.2s ease;
}

.step-card:hover {
  border-color: var(--clr-accent);
}

.step-card__number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-accent);
  color: var(--clr-text);
  font-weight: 800;
  font-size: var(--fs-md);
  border-radius: var(--radius-full);
}

.step-card__body h3 {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: var(--sp-xs);
}

.step-card__body p {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  margin-bottom: 0;
}

/* =========================================
   DETAIL CARDS
   ========================================= */
.detail-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-lg);
  margin: var(--sp-xl) 0;
}

.detail-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-xl);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.detail-card:hover {
  border-color: var(--clr-accent);
  transform: translateY(-2px);
}

.detail-card__icon {
  margin-bottom: var(--sp-md);
}

.detail-card h3 {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: var(--sp-sm);
}

.detail-card p {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
}

/* =========================================
   DATA TABLES
   ========================================= */
.responsive-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--sp-xl) 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
}

.data-matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

.data-matrix caption {
  padding: var(--sp-md);
  text-align: left;
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  background: var(--clr-surface2);
  border-bottom: 1px solid var(--clr-border);
}

.data-matrix th {
  padding: var(--sp-md);
  text-align: left;
  font-weight: 600;
  color: var(--clr-text);
  background: var(--clr-surface2);
  border-bottom: 2px solid var(--clr-border);
  white-space: nowrap;
}

.data-matrix td {
  padding: var(--sp-md);
  color: var(--clr-muted);
  border-bottom: 1px solid var(--clr-border);
  vertical-align: middle;
}

.data-matrix tbody tr:last-child td {
  border-bottom: none;
}

.data-matrix tbody tr:hover {
  background: rgba(20, 117, 225, 0.05);
}

.code-inline {
  font-family: var(--ff-mono);
  font-weight: 700;
  color: var(--clr-text);
  background: var(--clr-code-bg);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
}

.status-active {
  color: var(--clr-success);
  font-weight: 600;
  white-space: nowrap;
}

/* =========================================
   CHECK LIST
   ========================================= */
.check-list {
  margin: var(--sp-lg) 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.check-list li {
  padding-left: var(--sp-lg);
  position: relative;
  color: var(--clr-muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.check-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--clr-accent);
  font-weight: 700;
}

/* =========================================
   FAQ ACCORDION
   ========================================= */
.accordion-set {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.accordion-item {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.accordion-item[open] {
  border-color: var(--clr-accent);
}

.accordion-trigger {
  padding: var(--sp-lg);
  font-family: var(--ff-heading);
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--clr-text);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
  transition: background 0.2s ease;
}

.accordion-trigger::-webkit-details-marker {
  display: none;
}

.accordion-trigger::after {
  content: '+';
  flex-shrink: 0;
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--clr-accent);
  transition: transform 0.3s ease;
  width: 24px;
  text-align: center;
}

.accordion-item[open] .accordion-trigger::after {
  content: '−';
}

.accordion-trigger:hover {
  background: rgba(20, 117, 225, 0.08);
}

.accordion-panel {
  padding: 0 var(--sp-lg) var(--sp-lg);
  animation: panelReveal 0.3s ease;
}

.accordion-panel p {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  line-height: 1.7;
}

@keyframes panelReveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================================
   UPDATE STAMP
   ========================================= */
.update-stamp {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  padding: var(--sp-md) 0;
  border-top: 1px solid var(--clr-border);
  margin-top: var(--sp-xl);
}

/* =========================================
   LEGAL CONTENT
   ========================================= */
.legal-content h1 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--sp-lg);
}

.legal-content h2 {
  font-size: var(--fs-lg);
  margin-top: var(--sp-2xl);
  margin-bottom: var(--sp-md);
  color: var(--clr-text);
}

.legal-content p {
  color: var(--clr-muted);
  margin-bottom: var(--sp-md);
}

.legal-content ul {
  margin: var(--sp-md) 0;
  padding-left: var(--sp-xl);
}

.legal-content ul li {
  color: var(--clr-muted);
  margin-bottom: var(--sp-xs);
  position: relative;
  padding-left: var(--sp-md);
}

.legal-content ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--clr-accent);
}

/* =========================================
   FOOTER / SITE BASE
   ========================================= */
.site-base {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding-top: var(--sp-3xl);
  padding-bottom: var(--sp-xl);
}

.site-base__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--sp-2xl);
  margin-bottom: var(--sp-2xl);
}

.site-base__brand img {
  margin-bottom: var(--sp-md);
}

.site-base__tagline {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  max-width: 300px;
}

.site-base__links h3,
.site-base__legal h3 {
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--clr-text);
  margin-bottom: var(--sp-md);
}

.site-base__links ul {
  display: flex;
  flex-direction: column;
  gap: var(--sp-xs);
}

.site-base__links a {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  transition: color 0.2s ease;
}

.site-base__links a:hover {
  color: var(--clr-text);
}

.site-base__badges {
  display: flex;
  gap: var(--sp-md);
  align-items: center;
  flex-wrap: wrap;
}

.risk-banner {
  background: rgba(245, 165, 36, 0.08);
  border: 1px solid rgba(245, 165, 36, 0.25);
  border-radius: var(--radius-md);
  padding: var(--sp-lg);
  margin-bottom: var(--sp-xl);
}

.risk-banner p {
  font-size: var(--fs-sm);
  color: var(--clr-warning);
  line-height: 1.6;
  margin: 0;
}

.site-base__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-md);
  padding-top: var(--sp-lg);
  border-top: 1px solid var(--clr-border);
}

.site-base__bottom p {
  font-size: var(--fs-xs);
  color: var(--clr-muted);
  margin: 0;
}

.site-base__bottom a {
  font-size: var(--fs-xs);
  color: var(--clr-muted);
}

.site-base__bottom a:hover {
  color: var(--clr-text);
}

/* =========================================
   SCROLL-TO-TOP BUTTON
   ========================================= */
.scroll-top-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-accent);
  color: var(--clr-text);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.2s ease;
  box-shadow: var(--shadow-md);
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  background: var(--clr-accent-light);
  box-shadow: var(--shadow-accent);
}

.scroll-top-btn svg {
  pointer-events: none;
}

/* =========================================
   RESPONSIVE — TABLET
   ========================================= */
@media (max-width: 960px) {
  .offer-banner__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
  }

  .offer-banner__visual {
    order: 2;
    max-width: 360px;
    margin-inline: auto;
  }

  .offer-banner__content {
    order: 1;
  }

  .detail-cards {
    grid-template-columns: 1fr;
  }

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

/* =========================================
   RESPONSIVE — MOBILE
   ========================================= */
@media (max-width: 720px) {
  :root {
    --fs-2xl: 1.5rem;
    --fs-3xl: 1.875rem;
    --sp-3xl: 2.5rem;
    --sp-4xl: 3rem;
  }

  .nav-roster {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    background: var(--clr-bg);
    padding: var(--sp-xl);
    gap: var(--sp-xs);
    border-top: 1px solid var(--clr-border);
    z-index: 999;
    overflow-y: auto;
  }

  .nav-roster.open {
    display: flex;
  }

  .nav-link {
    font-size: var(--fs-md);
    padding: var(--sp-md);
    width: 100%;
  }

  .masthead-cta {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .offer-banner {
    padding-top: calc(var(--header-h) + var(--sp-xl));
    padding-bottom: var(--sp-2xl);
  }

  .offer-banner__heading {
    font-size: var(--fs-xl);
  }

  .offer-banner__sub {
    font-size: var(--fs-base);
  }

  .offer-banner__actions {
    flex-direction: column;
  }

  .offer-banner__actions .action-trigger {
    width: 100%;
  }

  .offer-banner__visual {
    display: none;
  }

  .code-display {
    max-width: 100%;
  }

  .code-display__row {
    flex-direction: column;
  }

  .code-display__value {
    font-size: var(--fs-lg);
  }

  .code-display__copy {
    width: 100%;
  }

  .step-card {
    flex-direction: column;
    gap: var(--sp-md);
  }

  .content-segment {
    padding: var(--sp-2xl) var(--sp-md);
  }

  .site-base__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
  }

  .site-base__bottom {
    flex-direction: column;
    text-align: center;
  }

  .cta-cluster {
    flex-direction: column;
  }

  .cta-cluster .action-trigger {
    width: 100%;
  }

  .data-matrix th,
  .data-matrix td {
    padding: var(--sp-sm);
    font-size: var(--fs-xs);
  }

  .scroll-top-btn {
    bottom: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 400px) {
  .brand-anchor img {
    height: 28px;
  }

  .offer-banner__heading {
    font-size: var(--fs-lg);
  }
}