/* =========================================================
   CS2BetGuide — Stylesheet
   ========================================================= */

/* --- Custom Properties --- */
:root {
  --bg-page: #0B1020;
  --bg-nav: rgba(11, 16, 32, 0.92);
  --border-nav: #1F2A44;
  --bg-card: #111827;
  --border-card: #24324A;
  --accent: #00D4FF;
  --accent-secondary: #7C3AED;
  --highlight: #22C55E;
  --warning: #F59E0B;
  --text-heading: #F8FAFC;
  --text-body: #CBD5E1;
  --text-muted: #94A3B8;
  --btn-gradient: linear-gradient(135deg, #00D4FF, #3B82F6);
  --hero-gradient: linear-gradient(135deg, #111827 0%, #172554 50%, #1E3A8A 100%);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --ff-heading: 'Space Grotesk', system-ui, sans-serif;
  --ff-body: 'Inter', system-ui, sans-serif;
  --ff-mono: 'JetBrains Mono', ui-monospace, monospace;
  --container: 1180px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--ff-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #5ce1ff; }
a:focus-visible, button:focus-visible, details summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
ul { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--ff-heading);
  color: var(--text-heading);
  line-height: 1.25;
  font-weight: 700;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--ff-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--btn-gradient);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.25);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 212, 255, 0.35);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--text-heading);
  border: 1.5px solid var(--border-card);
}
.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--sm { padding: 10px 22px; font-size: 0.875rem; }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
  border-bottom-color: var(--border-nav);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav__logo img { height: 32px; width: auto; }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  font-family: var(--ff-heading);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-xs);
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover, .nav__link.active {
  color: var(--text-heading);
  background: rgba(255, 255, 255, 0.05);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav__toggle-bar {
  width: 24px;
  height: 2px;
  background: var(--text-heading);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav__toggle.open .nav__toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav__toggle.open .nav__toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-page);
    flex-direction: column;
    align-items: stretch;
    padding: 24px 20px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
  }
  .nav__menu.open { transform: translateX(0); }
  .nav__link {
    font-size: 1.05rem;
    padding: 14px 16px;
  }
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  background: var(--hero-gradient);
  overflow: hidden;
  padding-top: 68px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}
.hero__orb--1 {
  width: 500px;
  height: 500px;
  background: #00D4FF;
  top: -150px;
  right: -100px;
  animation: orbFloat 8s ease-in-out infinite;
}
.hero__orb--2 {
  width: 400px;
  height: 400px;
  background: #7C3AED;
  bottom: -100px;
  left: -80px;
  animation: orbFloat 10s ease-in-out infinite reverse;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero__badge {
  display: inline-block;
  font-family: var(--ff-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero__desc {
  font-size: 1.05rem;
  color: var(--text-body);
  margin-bottom: 28px;
  max-width: 540px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero__visual img {
  max-width: 100%;
  height: auto;
  animation: heroFloat 6s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__desc { margin-left: auto; margin-right: auto; }
  .hero__actions { justify-content: center; }
  .hero__trust { justify-content: center; }
  .hero__visual { display: none; }
  .hero { min-height: auto; padding-top: 100px; padding-bottom: 20px; }
}

/* --- Section Titles --- */
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.015em;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 48px;
  font-size: 1rem;
}

/* --- Rankings Section --- */
.rankings {
  padding: 80px 0;
}

/* --- Site Card --- */
.site-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  margin-bottom: 24px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.site-card__header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border-card);
  flex-wrap: wrap;
}

.site-card__rank {
  font-family: var(--ff-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(0, 212, 255, 0.1);
  padding: 6px 14px;
  border-radius: var(--radius-xs);
  flex-shrink: 0;
}
.site-card__rank--top {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(124, 58, 237, 0.2));
  color: var(--accent);
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.site-card__identity {
  flex: 1;
  min-width: 0;
}

.site-card__name {
  font-size: 1.35rem;
  margin-bottom: 2px;
}

.site-card__url {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.site-card__score {
  display: flex;
  align-items: baseline;
  gap: 4px;
  flex-shrink: 0;
}
.site-card__score-value {
  font-family: var(--ff-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--highlight);
}
.site-card__score-label {
  font-family: var(--ff-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.site-card__body {
  padding: 24px 28px 28px;
}

.site-card__review {
  margin-bottom: 24px;
  line-height: 1.75;
  font-size: 0.95rem;
}

.site-card__details {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.site-card__detail h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 10px;
  font-weight: 600;
}

.site-card__detail ul li {
  font-size: 0.875rem;
  color: var(--text-body);
  padding: 3px 0;
  padding-left: 14px;
  position: relative;
}
.site-card__detail ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--border-card);
}

.site-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border-card);
}

.site-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 100px;
}
.tag--green { background: rgba(34, 197, 94, 0.1); color: var(--highlight); border: 1px solid rgba(34, 197, 94, 0.2); }
.tag--blue { background: rgba(0, 212, 255, 0.1); color: var(--accent); border: 1px solid rgba(0, 212, 255, 0.2); }
.tag--purple { background: rgba(124, 58, 237, 0.1); color: var(--accent-secondary); border: 1px solid rgba(124, 58, 237, 0.2); }

@media (max-width: 768px) {
  .site-card__header { padding: 16px 20px; }
  .site-card__body { padding: 20px; }
  .site-card__details { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .site-card__details { grid-template-columns: 1fr; }
  .site-card__header { gap: 12px; }
  .site-card__name { font-size: 1.15rem; }
  .site-card__footer { flex-direction: column; align-items: flex-start; }
  .site-card__footer .btn { width: 100%; }
}

/* --- Methodology --- */
.methodology {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(17, 24, 39, 0.5) 50%, transparent 100%);
}

.methodology__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.method-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.method-card:hover {
  border-color: rgba(0, 212, 255, 0.25);
  transform: translateY(-4px);
}

.method-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.06);
  border-radius: 12px;
  margin-bottom: 18px;
}

.method-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.method-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

@media (max-width: 900px) {
  .methodology__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .methodology__grid { grid-template-columns: 1fr; }
}

/* --- Game Types --- */
.game-types {
  padding: 80px 0;
}

.game-types__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.game-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}
.game-card:hover {
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-4px);
}

.game-card__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.06);
  border-radius: 50%;
  margin: 0 auto 18px;
}

.game-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.game-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

@media (max-width: 900px) {
  .game-types__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .game-types__grid { grid-template-columns: 1fr; }
}

/* --- Safety --- */
.safety {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(17, 24, 39, 0.5) 50%, transparent 100%);
}

.safety__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.safety-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition);
}
.safety-card:hover {
  border-color: rgba(34, 197, 94, 0.3);
}

.safety-card svg {
  margin-bottom: 16px;
}

.safety-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.safety-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

@media (max-width: 640px) {
  .safety__grid { grid-template-columns: 1fr; }
}

/* --- FAQ --- */
.faq {
  padding: 80px 0;
}

.faq__list {
  max-width: 780px;
  margin: 0 auto;
}

.faq__item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq__item:hover, .faq__item[open] {
  border-color: rgba(0, 212, 255, 0.3);
}

.faq__question {
  font-family: var(--ff-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-heading);
  padding: 20px 52px 20px 24px;
  cursor: pointer;
  position: relative;
  list-style: none;
  user-select: none;
  transition: color var(--transition);
}
.faq__question::-webkit-details-marker { display: none; }
.faq__question::marker { display: none; content: ''; }

.faq__question::after {
  content: '';
  position: absolute;
  right: 24px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--transition);
}
.faq__item[open] .faq__question::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq__answer {
  padding: 0 24px 20px;
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.7;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border-card);
  padding: 60px 0 0;
  background: rgba(17, 24, 39, 0.4);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-card);
}

.footer__brand img {
  margin-bottom: 16px;
}
.footer__brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 300px;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer__col h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-heading);
  margin-bottom: 16px;
}

.footer__col ul li {
  margin-bottom: 10px;
}
.footer__col ul li a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer__col ul li a:hover {
  color: var(--text-heading);
}

.footer__bottom {
  padding: 24px 0;
  text-align: center;
}
.footer__bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer__top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer__nav { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}
@media (max-width: 480px) {
  .footer__nav { grid-template-columns: 1fr; gap: 24px; }
}

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--btn-gradient);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3);
  z-index: 900;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(0, 212, 255, 0.45);
}

/* --- Utility --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}