/* =======================================
 * SkillUnlock Modern Mobile CSS v2.0
 * Mobile-First Responsive Design System
 * ======================================= */

:root {
  /* Colors */
  --primary: #eeff00;
  --primary-hover: #d9e600;
  --primary-rgb: 238, 255, 0;
  --bg-primary: #1a1a1a;
  --bg-secondary: #2a2a2a;
  --bg-tertiary: #3a3a3a;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #999999;
  --border-color: rgba(255, 255, 255, 0.1);
  
  /* Spacing System */
  --space-xs: 0.25rem;  /* 4px */
  --space-sm: 0.5rem;   /* 8px */
  --space-md: 1rem;     /* 16px */
  --space-lg: 1.5rem;   /* 24px */
  --space-xl: 2rem;     /* 32px */
  --space-2xl: 3rem;    /* 48px */
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  
  /* Typography */
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-base: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 1.875rem;
  
  /* Layout */
  --header-height: 4rem;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --z-fixed: 1030;
  --z-modal: 1050;
}

/* =======================================
 * Base Styles & Reset
 * ======================================= */

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  margin: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, blockquote, dl, dd {
  margin: 0;
}

ul, ol {
  list-style: none;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

/* =======================================
 * Header Component
 * ======================================= */

.sk-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3.5rem;
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: var(--z-fixed);
}

.sk-header__container {
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Mobile Menu Button */
.sk-header__menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  font-size: 1.1rem;
}

.sk-header__menu-btn:hover {
  background: rgba(var(--primary-rgb), 0.1);
}

.sk-header__menu-icon {
  position: relative;
  width: 1.5rem;
  height: 0.125rem;
  background: var(--text-primary);
  border-radius: 0.125rem;
  transition: var(--transition-normal);
}

.sk-header__menu-icon::before,
.sk-header__menu-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 0.125rem;
  background: var(--text-primary);
  border-radius: 0.125rem;
  transition: var(--transition-normal);
}

.sk-header__menu-icon::before { top: -0.5rem; }
.sk-header__menu-icon::after { bottom: -0.5rem; }

/* Menu Animation */
.sk-header__menu-btn[aria-expanded="true"] .sk-header__menu-icon {
  background: transparent;
}

.sk-header__menu-btn[aria-expanded="true"] .sk-header__menu-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.sk-header__menu-btn[aria-expanded="true"] .sk-header__menu-icon::after {
  bottom: 0;
  transform: rotate(-45deg);
}

/* Logo */
.sk-header__logo {
  flex: 1;
  display: flex;
  justify-content: center;
}

.sk-header__logo-link {
  display: block;
  transition: var(--transition-fast);
}

.sk-header__logo-link:hover {
  opacity: 0.8;
}

.sk-header__logo-link img {
  max-height: 2.2rem;
}

/* Desktop Navigation (Hidden on Mobile) */
.sk-header__nav {
  display: none;
}

/* Search Button */
.sk-header__search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.sk-header__search-btn:hover {
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary);
}

/* =======================================
 * Search Overlay
 * ======================================= */

.sk-search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.sk-search-overlay--active {
  opacity: 1;
  visibility: visible;
}

.sk-search-overlay__container {
  position: relative;
  width: 90%;
  max-width: 600px;
  transform: translateY(2rem);
  transition: var(--transition-normal);
}

.sk-search-overlay--active .sk-search-overlay__container {
  transform: translateY(0);
}

.sk-search-form {
  position: relative;
  display: flex;
  align-items: center;
}

.sk-search-form__input {
  width: 100%;
  padding: 0.8em 1.5em;
  padding-right: 4rem;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: var(--transition-fast);
}

.sk-search-form__input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.2);
}

.sk-search-form__input::placeholder {
  color: #bdbdbd;
}

.sk-search-form__btn {
  position: absolute;
  right: var(--space-sm);
  width: 3rem;
  height: 3rem;
  background: var(--primary);
  color: var(--bg-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-lg);
  transition: var(--transition-fast);
}

.sk-search-form__btn:hover {
  background: var(--primary-hover);
  transform: scale(1.05);
}

.sk-search-overlay__close {
  position: absolute;
  top: -3rem;
  right: 0;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--text-secondary);
  font-size: var(--font-xl);
  transition: var(--transition-fast);
}

.sk-search-overlay__close:hover {
  color: var(--text-primary);
}

/* =======================================
 * Mobile Menu
 * ======================================= */

.sk-mobile-menu {
  position: fixed;
  top: 0;
  left: -100%;
  width: 80%;
  max-width: 20rem;
  height: 100vh;
  background: var(--bg-secondary);
  z-index: var(--z-modal);
  transition: var(--transition-normal);
  overflow-y: auto;
}

.sk-mobile-menu--active {
  left: 0;
}

.sk-mobile-menu__backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-modal) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.sk-mobile-menu__backdrop--active {
  opacity: 1;
  visibility: visible;
}

.sk-mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.sk-mobile-menu__close {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: var(--font-lg);
  transition: var(--transition-fast);
}

.sk-mobile-menu__close:hover {
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary);
}

.sk-mobile-menu__list {
  padding: var(--space-lg) 0;
}

.sk-mobile-menu__item {
  margin-bottom: var(--space-xs);
}

.sk-mobile-menu__link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 0.75em 1.2em;
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition-fast);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin-right: var(--space-lg);
  font-size: 1rem;
}

.sk-mobile-menu__link:hover,
.sk-mobile-menu__link--active {
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary);
}

/* =======================================
 * Main Content Area
 * ======================================= */

.sk-main {
  min-height: 100vh;
  padding-top: var(--header-height);
  padding-bottom: var(--space-2xl);
}

/* =======================================
 * Hero Section
 * ======================================= */

.sk-hero {
  position: relative;
  min-height: 60vh;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  display: flex;
  align-items: center;
  overflow: hidden;
}


.sk-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.sk-hero__title {
  font-size: var(--font-3xl);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--primary) 0%, #ffffff 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.sk-hero__description {
  font-size: var(--font-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.sk-hero__actions {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* =======================================
 * Button System
 * ======================================= */

.sk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.5em 1.5em;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
  min-height: 2.5rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.15);
}

.sk-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-normal);
  z-index: 1;
}

.sk-btn:hover::before {
  left: 100%;
}

.sk-btn--primary {
  background: var(--primary);
  color: var(--bg-primary);
  box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.15);
}

.sk-btn--primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.18);
  transform: translateY(-1px);
}

.sk-btn--outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.sk-btn--outline:hover {
  background: var(--primary);
  color: var(--bg-primary);
}

/* =======================================
 * Card System
 * ======================================= */

.sk-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.sk-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.13);
}

.sk-card__image {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.sk-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.sk-card:hover .sk-card__image img {
  transform: scale(1.05);
}

.sk-card__badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  background: var(--primary);
  color: var(--bg-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-xs);
  font-weight: 700;
  text-transform: uppercase;
  z-index: 2;
}

.sk-card__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-normal);
}

.sk-card:hover .sk-card__overlay {
  opacity: 1;
}

.sk-card__play-btn {
  width: 4rem;
  height: 4rem;
  background: var(--primary);
  color: var(--bg-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-2xl);
  transform: scale(0.8);
  transition: var(--transition-normal);
}

.sk-card:hover .sk-card__play-btn {
  transform: scale(1);
}

.sk-card__content {
  padding: var(--space-lg);
}

.sk-card__title {
  font-size: var(--font-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sk-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-sm);
  color: var(--text-muted);
}

.sk-card__rating {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--primary);
}

/* =======================================
 * Section Components
 * ======================================= */

.sk-section {
  padding: var(--space-2xl) 0;
}

.sk-section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
  padding: 0 var(--space-md);
}

.sk-section__title {
  font-size: var(--font-2xl);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.sk-section__title i {
  color: var(--primary);
}

.sk-section__link {
  color: var(--primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: var(--transition-fast);
}

.sk-section__link:hover {
  text-decoration: underline;
}

/* =======================================
 * Grid Systems
 * ======================================= */

.sk-grid {
  display: grid;
  gap: var(--space-lg);
  padding: 0 var(--space-md);
}

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

.sk-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.sk-grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* =======================================
 * Carousel Component
 * ======================================= */

.sk-carousel {
  position: relative;
  overflow: hidden;
}

.sk-carousel__track {
  display: flex;
  gap: var(--space-lg);
  padding: 0 var(--space-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.sk-carousel__track::-webkit-scrollbar {
  display: none;
}

.sk-carousel__slide {
  flex: 0 0 auto;
  width: 280px;
  scroll-snap-align: start;
}

/* =======================================
 * Ad Components
 * ======================================= */

.sk-ad {
  margin: var(--space-xl) 0;
  text-align: center;
  padding: 0 var(--space-md);
}

.sk-ad__banner {
  display: inline-block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-fast);
  border: 1px solid var(--border-color);
}

.sk-ad__banner:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.sk-ad__label {
  font-size: var(--font-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* =======================================
 * Footer Component
 * ======================================= */

.sk-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.sk-footer__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md) var(--space-lg);
}

.sk-footer__main {
  display: grid;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  text-align: center;
}

.sk-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sk-footer__logo {
  margin-bottom: var(--space-md);
}

.sk-footer__description {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  font-size: var(--font-sm);
  max-width: 300px;
}

.sk-footer__social {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.sk-footer__social-link {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--bg-tertiary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.sk-footer__social-link:hover {
  background: var(--primary);
  color: var(--bg-primary);
  transform: translateY(-2px);
}

.sk-footer__section {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sk-footer__title {
  font-size: var(--font-lg);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.sk-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
}

.sk-footer__link {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  transition: var(--transition-fast);
}

.sk-footer__link:hover {
  color: var(--primary);
}

.sk-footer__support {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
}

.sk-footer__support-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-secondary);
  font-size: var(--font-sm);
}

.sk-footer__support-item i {
  color: var(--primary);
}

.sk-footer__bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-color);
}

.sk-footer__copyright,
.sk-footer__powered {
  color: var(--text-muted);
  font-size: var(--font-sm);
  margin-bottom: var(--space-sm);
}

.sk-footer__copyright-link,
.sk-footer__powered-link {
  color: var(--primary);
  transition: var(--transition-fast);
}

.sk-footer__copyright-link:hover,
.sk-footer__powered-link:hover {
  text-decoration: underline;
}

/* =======================================
 * Back to Top Button
 * ======================================= */

.sk-back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 3rem;
  height: 3rem;
  background: var(--primary);
  color: var(--bg-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-lg);
  z-index: 1020;
  opacity: 0;
  visibility: hidden;
  transform: translateY(1rem);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.4);
}

.sk-back-to-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sk-back-to-top:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.6);
}

/* =======================================
 * Responsive Design - Tablet (768px+)
 * ======================================= */

@media (min-width: 48rem) {
  :root {
    --header-height: 5rem;
  }

  .sk-hero__title {
    font-size: 3.5rem;
  }

  .sk-hero {
    min-height: 70vh;
  }

  .sk-hero__actions {
    gap: var(--space-xl);
  }

  .sk-grid--responsive {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  }

  .sk-footer__main {
    grid-template-columns: 2fr 1fr 1fr;
    text-align: left;
  }

  .sk-footer__brand {
    align-items: flex-start;
  }

  .sk-footer__social {
    justify-content: flex-start;
  }

  .sk-footer__section {
    align-items: flex-start;
  }

  .sk-footer__links {
    align-items: flex-start;
  }

  .sk-footer__support {
    align-items: flex-start;
  }

  .sk-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }

  .sk-footer__powered {
    margin-bottom: 0;
  }

  .sk-btn {
    min-height: 2.7rem;
    font-size: 1.08rem;
    padding: 0.6em 2em;
  }
}

/* =======================================
 * Responsive Design - Desktop (1024px+)
 * ======================================= */

@media (min-width: 64rem) {
  .sk-header__menu-btn {
    display: none;
  }

  .sk-header__logo {
    flex: 0 0 auto;
    justify-content: flex-start;
  }

  .sk-header__nav {
    display: flex;
    flex: 1;
    justify-content: center;
  }

  .sk-header__nav-list {
    display: flex;
    gap: var(--space-xl);
  }

  .sk-header__nav-link {
    position: relative;
    font-weight: 500;
    transition: var(--transition-fast);
    padding: var(--space-sm) 0;
  }

  .sk-header__nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
  }

  .sk-header__nav-link:hover,
  .sk-header__nav-link--active {
    color: var(--primary);
  }

  .sk-header__nav-link:hover::after,
  .sk-header__nav-link--active::after {
    width: 100%;
  }

  .sk-carousel__slide {
    width: 320px;
  }

  .sk-footer__main {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* =======================================
 * Accessibility & Motion Preferences
 * ======================================= */

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

@media (prefers-contrast: high) {
  :root {
    --primary: #ffe600;
  }
}

/* =======================================
 * Print Styles
 * ======================================= */

/* =======================================
 * Ad Template Components
 * ======================================= */

.ad-container {
  margin: var(--space-lg) 0;
  text-align: center;
  position: relative;
}

.ad-container--banner {
  margin: var(--space-xl) 0;
}

.ad-container--sidebar {
  margin: var(--space-md) 0;
  max-width: 300px;
}

.ad-container--hero {
  margin: var(--space-2xl) 0;
  max-width: 1200px;
  margin: 0 auto var(--space-2xl);
}

.ad-label {
  font-size: var(--font-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-sm);
  display: block;
}

.ad-content {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.ad-link {
  display: block;
  width: 100%;
  transition: var(--transition-normal);
  text-decoration: none;
}

.ad-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.3);
}

.ad-link--hero {
  position: relative;
}

.ad-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.ad-image--banner {
  max-width: 728px;
  height: auto;
}

.ad-image--sidebar {
  max-width: 300px;
  height: auto;
}

.ad-image--sidebar-bottom {
  max-width: 300px;
  height: auto;
}

.ad-image--hero {
  max-width: 1200px;
  height: auto;
  min-height: 300px;
  object-fit: cover;
}

.ad-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: var(--space-xl);
  text-align: left;
  opacity: 0;
  transition: var(--transition-normal);
}

.ad-link--hero:hover .ad-overlay {
  opacity: 1;
}

.ad-overlay__title {
  font-size: var(--font-2xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.ad-overlay__description {
  font-size: var(--font-base);
  margin-bottom: var(--space-md);
  color: rgba(255, 255, 255, 0.9);
}

.ad-overlay__cta {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: var(--primary);
  color: var(--bg-primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: var(--font-sm);
}

@media print {
  .sk-header,
  .sk-mobile-menu,
  .sk-search-overlay,
  .sk-back-to-top,
  .sk-ad,
  .ad-container {
    display: none !important;
  }

  .sk-main {
    padding-top: 0;
  }

  body {
    background: white;
    color: black;
  }
}