/**
 * Unslop Design System for Hitclub (vietnamnextdoor.com)
 * Craft, calm, exact - High-roller Casino Lounge Aesthetic
 */

:root {
  /* 1. Color Ramp - Deep Slate / Neutral Ramp */
  --unslop-bg-canvas: #0a0d14;
  --unslop-bg-surface: #111622;
  --unslop-bg-surface-elevated: #181f2e;
  --unslop-bg-surface-glass: rgba(17, 22, 34, 0.88);
  
  /* Hairline Borders */
  --unslop-border-hairline: rgba(255, 255, 255, 0.08);
  --unslop-border-subtle: rgba(255, 255, 255, 0.14);
  --unslop-border-accent: rgba(229, 169, 59, 0.35);
  
  /* Text Roles (Strict WCAG Contrast) */
  --unslop-text-primary: #f1f3f7;
  --unslop-text-secondary: #9aa3b2;
  --unslop-text-muted: #6b7382;
  
  /* Single Accent: Royal Amber Gold */
  --unslop-accent: #e5a93b;
  --unslop-accent-hover: #f0b84c;
  --unslop-accent-contrast: #0a0d14;
  --unslop-accent-soft: rgba(229, 169, 59, 0.12);
  
  /* Radius Scale */
  --unslop-radius-sm: 6px;
  --unslop-radius-md: 8px;
  --unslop-radius-lg: 12px;
  --unslop-radius-xl: 16px;
  
  /* Shadows */
  --unslop-shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.4);
  --unslop-shadow-elevated: 0 10px 36px rgba(0, 0, 0, 0.55);
}

/* Base Body & Surfaces */
html {
  scroll-behavior: smooth;
}

body,
#wrapper,
#main,
#main.dark,
.page-wrapper {
  background-color: var(--unslop-bg-canvas) !important;
  color: var(--unslop-text-primary) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important;
  line-height: 1.68 !important;
  -webkit-font-smoothing: antialiased;
}

/* Remove text fill hacks and rainbow gradients */
* {
  -webkit-text-fill-color: initial !important;
  text-shadow: none !important;
}

/* Typography & Sentence Case */
h1, h2, h3, h4, h5, h6,
.section-title,
.section-title-main,
.header-nav > li > a,
.sidebar-menu ul.nav > li > a,
.button,
button {
  text-transform: none !important;
  letter-spacing: -0.01em !important;
}

h1, .section-title-main h1 {
  font-size: 26px !important;
  line-height: 1.35 !important;
  font-weight: 700 !important;
  color: var(--unslop-text-primary) !important;
  margin-top: 16px !important;
  margin-bottom: 24px !important;
  scroll-margin-top: 100px;
}

@media (min-width: 768px) {
  h1, .section-title-main h1 {
    font-size: 30px !important;
  }
}

h2 {
  font-size: 22px !important;
  line-height: 1.4 !important;
  font-weight: 600 !important;
  color: var(--unslop-text-primary) !important;
  margin-top: 36px !important;
  margin-bottom: 16px !important;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--unslop-border-hairline) !important;
  scroll-margin-top: 100px;
}

h3 {
  font-size: 18px !important;
  line-height: 1.45 !important;
  font-weight: 600 !important;
  color: var(--unslop-text-primary) !important;
  margin-top: 24px !important;
  margin-bottom: 12px !important;
  scroll-margin-top: 100px;
}

p, li {
  color: var(--unslop-text-secondary) !important;
  font-size: 15px !important;
  line-height: 1.72 !important;
  margin-bottom: 16px;
}

p strong, li strong, b {
  color: var(--unslop-text-primary) !important;
  font-weight: 600 !important;
}

a {
  color: var(--unslop-accent) !important;
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--unslop-accent-hover) !important;
}

/* Sticky Header with Frosted Glass */
#header {
  position: sticky !important;
  top: 0 !important;
  z-index: 999 !important;
  background: rgba(10, 13, 20, 0.88) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid var(--unslop-border-hairline) !important;
}

.header-main {
  height: 68px !important;
}

#logo {
  display: flex;
  align-items: center;
}

#logo img {
  max-height: 44px !important;
  width: auto;
  object-fit: contain;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.header-nav > li > a,
.nav-top-link {
  font-size: 14px !important;
  font-weight: 500 !important;
  color: var(--unslop-text-secondary) !important;
  padding: 8px 14px !important;
  border-radius: var(--unslop-radius-sm) !important;
  transition: all 0.15s ease;
}

.header-nav > li > a:hover,
.header-nav > li.active > a,
.header-nav > li.current-menu-item > a {
  color: var(--unslop-text-primary) !important;
  background: rgba(255, 255, 255, 0.06) !important;
}

/* Header Action CTA Button */
.unslop-header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--unslop-accent) !important;
  color: var(--unslop-accent-contrast) !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  padding: 8px 18px !important;
  border-radius: var(--unslop-radius-md) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  box-shadow: 0 2px 8px rgba(229, 169, 59, 0.25) !important;
  transition: all 0.18s ease;
  white-space: nowrap;
  margin-left: 12px;
}

.unslop-header-cta:hover {
  background: var(--unslop-accent-hover) !important;
  color: var(--unslop-accent-contrast) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(229, 169, 59, 0.35) !important;
}

/* Table of Contents (TOC) Component */
.unslop-toc {
  background: var(--unslop-bg-surface-glass) !important;
  border: 1px solid var(--unslop-border-hairline) !important;
  border-radius: var(--unslop-radius-lg) !important;
  padding: 20px 24px !important;
  margin: 28px 0 36px 0 !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  box-shadow: var(--unslop-shadow-subtle) !important;
  max-width: 100%;
}

.unslop-toc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--unslop-border-hairline);
  margin-bottom: 14px;
}

.unslop-toc-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--unslop-text-primary);
}

.unslop-toc-icon {
  width: 18px;
  height: 18px;
  stroke: var(--unslop-accent);
  flex-shrink: 0;
}

.unslop-toc-toggle {
  background: transparent !important;
  border: none !important;
  color: var(--unslop-text-muted) !important;
  font-size: 13px !important;
  cursor: pointer;
  padding: 4px 8px !important;
  border-radius: var(--unslop-radius-sm) !important;
  transition: all 0.15s ease;
}

.unslop-toc-toggle:hover {
  color: var(--unslop-text-primary) !important;
  background: rgba(255, 255, 255, 0.06) !important;
}

.unslop-toc-list {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

.unslop-toc-item {
  margin: 6px 0 !important;
  line-height: 1.5;
}

.unslop-toc-item.level-h2 {
  font-weight: 500;
}

.unslop-toc-item.level-h3 {
  padding-left: 20px;
  font-size: 14px;
}

.unslop-toc-link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  color: var(--unslop-text-secondary) !important;
  transition: color 0.15s ease;
}

.unslop-toc-link:hover {
  color: var(--unslop-accent) !important;
}

.unslop-toc-num {
  font-size: 12px;
  color: var(--unslop-text-muted);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

/* Spacing, Radius & Accordions */
.accordion {
  border-radius: var(--unslop-radius-lg);
  border: 1px solid var(--unslop-border-hairline) !important;
  overflow: hidden;
  margin-top: 16px;
}

.accordion-item {
  border-bottom: 1px solid var(--unslop-border-hairline) !important;
  background: var(--unslop-bg-surface) !important;
}

.accordion-item:last-child {
  border-bottom: none !important;
}

.accordion-title {
  color: var(--unslop-text-primary) !important;
  font-size: 15px !important;
  font-weight: 500 !important;
  padding: 16px 20px !important;
  background: transparent !important;
}

.accordion-title:hover {
  background: rgba(255, 255, 255, 0.03) !important;
  color: var(--unslop-accent) !important;
}

.accordion-inner {
  padding: 0 20px 20px 20px !important;
  color: var(--unslop-text-secondary) !important;
}

/* Mobile Off-Canvas Drawer */
.off-canvas .sidebar-menu {
  background: var(--unslop-bg-surface) !important;
  border-right: 1px solid var(--unslop-border-hairline) !important;
  padding: 24px 20px !important;
}

.mfp-bg {
  background: rgba(5, 7, 12, 0.85) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
}

.sidebar-menu ul.nav > li > a {
  font-size: 15px !important;
  color: var(--unslop-text-secondary) !important;
  padding: 12px 16px !important;
  border-radius: var(--unslop-radius-md) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04) !important;
}

.sidebar-menu ul.nav > li > a:hover {
  color: var(--unslop-text-primary) !important;
  background: rgba(255, 255, 255, 0.05) !important;
}

/* Responsive Floating Banners (Step 8) */
@media screen and (max-width: 1550px) {
  .floating-banner,
  .floating-banner-left,
  .floating-banner-right,
  .banner-floating,
  .banner-left,
  .banner-right,
  .side-banner,
  .fixed-banner,
  [class*="banner-floating"],
  [class*="floating-banner"],
  [class*="side-banner"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }
}

@media screen and (min-width: 1551px) {
  .floating-banner-left,
  .side-banner-left {
    position: fixed !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    left: 16px !important;
    z-index: 899 !important;
    max-width: 150px !important;
  }
  .floating-banner-right,
  .side-banner-right {
    position: fixed !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    right: 16px !important;
    z-index: 899 !important;
    max-width: 150px !important;
  }
}

/* Footer Refinements */
footer#footer {
  background: #080a10 !important;
  border-top: 1px solid var(--unslop-border-hairline) !important;
  padding-top: 36px !important;
}

footer .footer-widgets {
  color: var(--unslop-text-muted) !important;
}

footer a {
  color: var(--unslop-text-secondary) !important;
}

footer a:hover {
  color: var(--unslop-accent) !important;
}

/* Back to top button */
.back-to-top {
  border-radius: var(--unslop-radius-md) !important;
  background: var(--unslop-bg-surface-elevated) !important;
  border: 1px solid var(--unslop-border-hairline) !important;
  color: var(--unslop-text-secondary) !important;
}

.back-to-top:hover {
  background: var(--unslop-accent) !important;
  color: var(--unslop-accent-contrast) !important;
}