/* ==========================================================================
   OLX 786 - Layout Stylesheet
   Mobile-first responsive design | Max-width 430px
   All classes prefixed with sd57- | All variables prefixed with --sd57-
   ========================================================================== */

/* --- CSS Variables --- */
:root {
  --sd57-primary: #DDA0DD;
  --sd57-secondary: #FF4500;
  --sd57-bg: #0A0A0A;
  --sd57-bg-alt: #2C3E50;
  --sd57-muted: #4A4A4A;
  --sd57-text: #EAEAEA;
  --sd57-text-dim: #B0B0B0;
  --sd57-white: #FFFFFF;
  --sd57-black: #000000;
  --sd57-radius: 8px;
  --sd57-radius-lg: 14px;
  --sd57-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
  --sd57-transition: 0.3s ease;
  --sd57-font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --sd57-header-h: 56px;
  --sd57-bottom-h: 60px;
}

/* --- Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--sd57-font);
  background: var(--sd57-bg);
  color: var(--sd57-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--sd57-primary);
  text-decoration: none;
  transition: color var(--sd57-transition);
}
a:hover {
  color: var(--sd57-secondary);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul, ol {
  list-style: none;
}
button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: inherit;
}

/* --- Container --- */
.sd57-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 12px;
}

/* --- Header --- */
.sd57-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--sd57-header-h);
  background: var(--sd57-bg);
  border-bottom: 1px solid rgba(221, 160, 221, 0.15);
  z-index: 1000;
  transition: all var(--sd57-transition);
  display: flex;
  align-items: center;
}
.sd57-header-shrink {
  height: 48px;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.6);
}
.sd57-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 10px;
}
.sd57-logo-area {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sd57-logo-img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}
.sd57-logo-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--sd57-primary);
  letter-spacing: 0.5px;
}
.sd57-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sd57-btn-register {
  background: var(--sd57-secondary);
  color: var(--sd57-white);
  padding: 7px 16px;
  border-radius: var(--sd57-radius);
  font-size: 13px;
  font-weight: 700;
  transition: all var(--sd57-transition);
}
.sd57-btn-register:hover {
  background: #e03d00;
  transform: scale(1.04);
}
.sd57-btn-login {
  background: transparent;
  color: var(--sd57-primary);
  border: 1.5px solid var(--sd57-primary);
  padding: 6px 14px;
  border-radius: var(--sd57-radius);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--sd57-transition);
}
.sd57-btn-login:hover {
  background: rgba(221, 160, 221, 0.1);
}
.sd57-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 6px;
}
.sd57-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--sd57-primary);
  border-radius: 2px;
  transition: all var(--sd57-transition);
}

/* --- Desktop Nav (hidden on mobile) --- */
.sd57-desktop-nav {
  display: none;
}
@media (min-width: 769px) {
  .sd57-desktop-nav {
    display: flex;
    align-items: center;
    gap: 20px;
  }
  .sd57-desktop-nav a {
    color: var(--sd57-text-dim);
    font-size: 14px;
    font-weight: 500;
    transition: color var(--sd57-transition);
  }
  .sd57-desktop-nav a:hover {
    color: var(--sd57-primary);
  }
}

/* --- Mobile Menu --- */
.sd57-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 9998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--sd57-transition);
}
.sd57-overlay-active {
  opacity: 1;
  pointer-events: auto;
}
#sd57-mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--sd57-bg-alt);
  z-index: 9999;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  padding: 70px 20px 30px;
}
.sd57-menu-open {
  right: 0 !important;
}
.sd57-menu-closed {
  right: -280px;
}
.sd57-menu-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: none;
  color: var(--sd57-text);
  font-size: 24px;
}
.sd57-menu-section {
  margin-bottom: 24px;
}
.sd57-menu-heading {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--sd57-primary);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(221, 160, 221, 0.2);
}
.sd57-menu-link {
  display: block;
  padding: 9px 0;
  color: var(--sd57-text-dim);
  font-size: 14px;
  transition: color var(--sd57-transition);
}
.sd57-menu-link:hover {
  color: var(--sd57-primary);
}

/* --- Slider --- */
.sd57-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: var(--sd57-radius-lg);
  margin-top: 8px;
}
.sd57-slide {
  display: none;
  width: 100%;
  aspect-ratio: 16 / 9;
}
.sd57-slide-active {
  display: block;
}
.sd57-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.sd57-slider-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
}
.sd57-slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: background var(--sd57-transition);
}
.sd57-dot-active {
  background: var(--sd57-primary);
  width: 20px;
  border-radius: 4px;
}

/* --- Main Content --- */
.sd57-main {
  padding-top: calc(var(--sd57-header-h) + 10px);
  padding-bottom: 20px;
  min-height: 80vh;
}
@media (max-width: 768px) {
  .sd57-main {
    padding-bottom: 80px;
  }
}

/* --- Sections --- */
.sd57-section {
  margin-bottom: 24px;
}
.sd57-section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--sd57-white);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sd57-section-title i {
  color: var(--sd57-primary);
  font-size: 20px;
}

/* --- Category Tabs --- */
.sd57-cat-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 14px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.sd57-cat-tabs::-webkit-scrollbar {
  display: none;
}
.sd57-cat-tab {
  flex-shrink: 0;
  padding: 7px 16px;
  border-radius: 20px;
  background: var(--sd57-bg-alt);
  color: var(--sd57-text-dim);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--sd57-transition);
}
.sd57-cat-tab-active {
  background: var(--sd57-primary);
  color: var(--sd57-bg);
}

/* --- Game Grid --- */
.sd57-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
@media (min-width: 769px) {
  .sd57-game-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
  }
}
.sd57-game-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: transform var(--sd57-transition);
}
.sd57-game-item:hover {
  transform: translateY(-3px);
}
.sd57-game-img {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--sd57-radius);
  object-fit: cover;
  border: 2px solid transparent;
  transition: border-color var(--sd57-transition);
}
.sd57-game-item:hover .sd57-game-img {
  border-color: var(--sd57-primary);
}
.sd57-game-name {
  font-size: 11px;
  color: var(--sd57-text-dim);
  text-align: center;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

/* --- Promo Cards --- */
.sd57-promo-card {
  background: linear-gradient(135deg, var(--sd57-bg-alt) 0%, rgba(44, 62, 80, 0.6) 100%);
  border: 1px solid rgba(221, 160, 221, 0.15);
  border-radius: var(--sd57-radius-lg);
  padding: 18px;
  margin-bottom: 16px;
  transition: all var(--sd57-transition);
}
.sd57-promo-card:hover {
  border-color: var(--sd57-primary);
  box-shadow: 0 4px 20px rgba(221, 160, 221, 0.15);
}
.sd57-promo-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--sd57-primary);
  margin-bottom: 8px;
}
.sd57-promo-text {
  font-size: 13px;
  color: var(--sd57-text-dim);
  line-height: 1.7;
  margin-bottom: 12px;
}
.sd57-promo-btn {
  display: inline-block;
  background: var(--sd57-secondary);
  color: var(--sd57-white);
  padding: 9px 22px;
  border-radius: var(--sd57-radius);
  font-size: 13px;
  font-weight: 700;
  transition: all var(--sd57-transition);
}
.sd57-promo-btn:hover {
  background: #e03d00;
  transform: scale(1.03);
}

/* --- CTA Banner --- */
.sd57-cta {
  background: linear-gradient(135deg, var(--sd57-secondary), #c93500);
  border-radius: var(--sd57-radius-lg);
  padding: 22px;
  text-align: center;
  margin-bottom: 20px;
}
.sd57-cta-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--sd57-white);
  margin-bottom: 8px;
}
.sd57-cta-text {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 14px;
}
.sd57-cta-btn {
  display: inline-block;
  background: var(--sd57-white);
  color: var(--sd57-secondary);
  padding: 10px 28px;
  border-radius: var(--sd57-radius);
  font-size: 14px;
  font-weight: 700;
  transition: all var(--sd57-transition);
}
.sd57-cta-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* --- Content Modules --- */
.sd57-content-block {
  background: rgba(44, 62, 80, 0.35);
  border-radius: var(--sd57-radius-lg);
  padding: 18px;
  margin-bottom: 18px;
}
.sd57-content-block h2 {
  font-size: 17px;
  font-weight: 700;
  color: var(--sd57-primary);
  margin-bottom: 10px;
}
.sd57-content-block h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--sd57-white);
  margin-bottom: 8px;
  margin-top: 12px;
}
.sd57-content-block p {
  font-size: 13px;
  color: var(--sd57-text-dim);
  line-height: 1.8;
  margin-bottom: 10px;
}
.sd57-content-block ul {
  padding-left: 16px;
  margin-bottom: 10px;
}
.sd57-content-block li {
  font-size: 13px;
  color: var(--sd57-text-dim);
  line-height: 1.7;
  margin-bottom: 4px;
  list-style: disc;
}

/* --- Bottom Navigation --- */
.sd57-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--sd57-bottom-h);
  background: linear-gradient(180deg, #1a1a2e 0%, var(--sd57-bg) 100%);
  border-top: 1px solid rgba(221, 160, 221, 0.18);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  padding: 4px 0;
}
.sd57-bottom-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 52px;
  background: none;
  color: var(--sd57-muted);
  font-size: 10px;
  gap: 3px;
  transition: all var(--sd57-transition);
  border-radius: 8px;
}
.sd57-bottom-btn i,
.sd57-bottom-btn .material-icons {
  font-size: 22px;
}
.sd57-bottom-btn span {
  font-weight: 600;
}
.sd57-bottom-btn:hover {
  color: var(--sd57-primary);
  background: rgba(221, 160, 221, 0.08);
}
.sd57-bottom-btn-active {
  color: var(--sd57-primary);
}
@media (min-width: 769px) {
  .sd57-bottom-nav {
    display: none;
  }
}

/* --- Footer --- */
.sd57-footer {
  background: var(--sd57-bg-alt);
  padding: 28px 12px 20px;
  margin-top: 30px;
}
.sd57-footer-inner {
  max-width: 430px;
  margin: 0 auto;
}
.sd57-footer-brand {
  text-align: center;
  margin-bottom: 18px;
}
.sd57-footer-brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--sd57-primary);
  margin-bottom: 6px;
}
.sd57-footer-desc {
  font-size: 12px;
  color: var(--sd57-muted);
  line-height: 1.6;
}
.sd57-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 18px;
}
.sd57-footer-links a {
  font-size: 12px;
  color: var(--sd57-text-dim);
}
.sd57-footer-links a:hover {
  color: var(--sd57-primary);
}
.sd57-footer-partners {
  text-align: center;
  margin-bottom: 18px;
}
.sd57-footer-partners-title {
  font-size: 11px;
  color: var(--sd57-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.sd57-footer-partner-logos {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.sd57-footer-partner-logos img {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  opacity: 0.6;
  transition: opacity var(--sd57-transition);
}
.sd57-footer-partner-logos img:hover {
  opacity: 1;
}
.sd57-footer-copy {
  text-align: center;
  font-size: 11px;
  color: var(--sd57-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 14px;
}

/* --- Back to Top --- */
.sd57-back-top {
  position: fixed;
  bottom: 76px;
  right: 16px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--sd57-primary);
  color: var(--sd57-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  opacity: 0;
  pointer-events: none;
  transition: all var(--sd57-transition);
  z-index: 999;
  box-shadow: var(--sd57-shadow);
}
.sd57-back-top-visible {
  opacity: 1;
  pointer-events: auto;
}
.sd57-back-top:hover {
  background: var(--sd57-secondary);
  color: var(--sd57-white);
  transform: translateY(-3px);
}

/* --- Animations --- */
.sd57-animate {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.sd57-animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* --- Utilities --- */
.sd57-text-center { text-align: center; }
.sd57-text-primary { color: var(--sd57-primary); }
.sd57-text-secondary { color: var(--sd57-secondary); }
.sd57-mt-sm { margin-top: 10px; }
.sd57-mt-md { margin-top: 18px; }
.sd57-mt-lg { margin-top: 28px; }
.sd57-mb-sm { margin-bottom: 10px; }
.sd57-mb-md { margin-bottom: 18px; }
.sd57-mb-lg { margin-bottom: 28px; }
.sd57-hidden { display: none !important; }
.sd57-divider {
  height: 1px;
  background: rgba(221, 160, 221, 0.12);
  margin: 20px 0;
}

/* --- Responsive Desktop Overrides --- */
@media (min-width: 769px) {
  .sd57-container {
    max-width: 800px;
  }
  .sd57-main {
    padding-top: calc(var(--sd57-header-h) + 20px);
  }
  .sd57-header-inner {
    max-width: 800px;
  }
  .sd57-section-title {
    font-size: 22px;
  }
  .sd57-game-name {
    font-size: 12px;
  }
  .sd57-promo-card {
    padding: 24px;
  }
}