/**
 * Base styles: reset, typography, and body defaults.
 * No component-specific styles here.
 */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  margin: 0;
}

h1 {
  font-size: var(--h1-size);
}

@media (max-width: 768px) {
  h1 {
    font-size: var(--h1-size-mobile);
  }
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin: 0;
  line-height: var(--line-height-relaxed);
}

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

a:hover {
  color: var(--color-primary-hover);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Lists */
ul, ol {
  list-style: none;
}

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

/* Buttons */
button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0;
}

button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Form Elements */
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

/* Skip to content link for screen readers */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-sm) var(--space-md);
  z-index: var(--z-tooltip);
  border-radius: var(--radius-md);
}

.skip-to-content:focus {
  top: var(--space-md);
}

/* Remove animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* -------------------------------------------------------------------------- */
/* Micro-interactions (hover + click)                                          */
/* -------------------------------------------------------------------------- */

:root {
  --ui-hover-scale: 1.015;
  --ui-active-scale: 0.97;
  --ui-press-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --ui-bounce-ease: cubic-bezier(0.25, 1.25, 0.5, 1);
  --ui-press-duration: 800ms;
  --ui-active-duration: 200ms;
  --ui-bubble-duration: 1500ms;
  --ui-bubble-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
}

@keyframes ui-bubble-up {
  0% {
    transform: translate(-50%, -50%) scale(0.2);
    opacity: 0.25;
  }
  50% {
    opacity: 0.12;
  }
  100% {
    transform: translate(-50%, -120%) scale(1.8);
    opacity: 0;
  }
}

/* Common interactive elements (new UI only) */
:where(
  .ui-pressable,
  .header__brand,
  .header__tags-link,
  .header__theme-switch,
  .header__theme-button,
  .mobile-nav-tabs__item,
  .mobile-category-button,
  .genre-filter,
  .pagination__button,
  .radio-card,
  .podcast-card,
  .podcast-card__link,
  .podcast-player__genre-tag,
  .podcast-player__favorite-button,
  .podcast-player__control-button,
  .podcast-player__play-button,
  .podcast-episode__play-button,
  .podcast-episodes__show-more,
  .related-podcasts__item,
  .charts-item,
  .search-tabs__button,
  .search-podcast-item,
  .blog-card,
  .blog-card__link,
  .blog-article__back-button,
  .my-grid__empty-button,
  .sidebar__nav-item,
  .sidebar__dropdown-item,
  .footer__nav-link,
  .footer__flag,
  .footer__app-buttons a,
  .radio-player__play-button,
  .radio-player__favorite-overlay,
  .radio-info__tag,
  .radio-info__social-link,
  .radio-info__schedule-tab,
  .radio-songs__tab,
  .history-song,
  .embed-player__play,
  .embed-similar__item,
  .widget-type-card,
  .widget-builder__tab,
  .widget-builder__copy-btn,
  .wb-btn-reset,
  .wb-size-option,
  .broadcasters__btn,
  .broadcasters-modal__close,
  .blog-card__button,
  .search-tabs__tab,
  .most-played-item,
  .most-played-tabs__button,
  .ad-banner__button,
  .breadcrumb__link
) {
  --ui-hover-transform: scale(var(--ui-hover-scale));
  --ui-active-transform: scale(var(--ui-active-scale));

  position: relative;
  transform: translateZ(0);
  transition:
    transform var(--ui-press-duration) var(--ui-bounce-ease),
    filter var(--ui-press-duration) var(--ui-press-ease),
    box-shadow var(--ui-press-duration) var(--ui-press-ease),
    background-color var(--ui-press-duration) var(--ui-press-ease),
    border-color var(--ui-press-duration) var(--ui-press-ease),
    color var(--ui-press-duration) var(--ui-press-ease),
    opacity var(--ui-press-duration) var(--ui-press-ease);
  will-change: transform;
  -webkit-tap-highlight-color: transparent;
}:where(
  .ui-pressable,
  .header__brand,
  .header__tags-link,
  .header__theme-switch,
  .header__theme-button,
  .mobile-nav-tabs__item,
  .mobile-category-button,
  .genre-filter,
  .pagination__button,
  .radio-card,
  .podcast-card,
  .podcast-card__link,
  .podcast-player__genre-tag,
  .podcast-player__favorite-button,
  .podcast-player__control-button,
  .podcast-player__play-button,
  .podcast-episode__play-button,
  .podcast-episodes__show-more,
  .related-podcasts__item,
  .charts-item,
  .search-tabs__button,
  .search-podcast-item,
  .blog-card,
  .blog-card__link,
  .blog-article__back-button,
  .my-grid__empty-button,
  .sidebar__nav-item,
  .sidebar__dropdown-item,
  .footer__nav-link,
  .footer__flag,
  .footer__app-buttons a,
  .radio-player__play-button,
  .radio-player__favorite-overlay,
  .radio-info__tag,
  .radio-info__social-link,
  .radio-info__schedule-tab,
  .radio-songs__tab,
  .history-song,
  .embed-player__play,
  .embed-similar__item,
  .widget-type-card,
  .widget-builder__tab,
  .widget-builder__copy-btn,
  .wb-btn-reset,
  .wb-size-option,
  .broadcasters__btn,
  .broadcasters-modal__close,
  .blog-card__button,
  .search-tabs__tab,
  .most-played-item,
  .most-played-tabs__button,
  .ad-banner__button,
  .breadcrumb__link
):hover {
  transform: var(--ui-hover-transform);
}

:where(
  .ui-pressable,
  .header__brand,
  .header__tags-link,
  .header__theme-switch,
  .header__theme-button,
  .mobile-nav-tabs__item,
  .mobile-category-button,
  .genre-filter,
  .pagination__button,
  .radio-card,
  .podcast-card,
  .podcast-card__link,
  .podcast-player__genre-tag,
  .podcast-player__favorite-button,
  .podcast-player__control-button,
  .podcast-player__play-button,
  .podcast-episode__play-button,
  .podcast-episodes__show-more,
  .related-podcasts__item,
  .charts-item,
  .search-tabs__button,
  .search-podcast-item,
  .blog-card,
  .blog-card__link,
  .blog-article__back-button,
  .my-grid__empty-button,
  .sidebar__nav-item,
  .sidebar__dropdown-item,
  .footer__nav-link,
  .footer__flag,
  .footer__app-buttons a,
  .radio-player__play-button,
  .radio-player__favorite-overlay,
  .radio-info__tag,
  .radio-info__social-link,
  .radio-info__schedule-tab,
  .radio-songs__tab,
  .history-song,
  .embed-player__play,
  .embed-similar__item,
  .widget-type-card,
  .widget-builder__tab,
  .widget-builder__copy-btn,
  .wb-btn-reset,
  .wb-size-option,
  .broadcasters__btn,
  .broadcasters-modal__close,
  .blog-card__button,
  .search-tabs__tab,
  .most-played-item,
  .most-played-tabs__button,
  .ad-banner__button,
  .breadcrumb__link
):active {
  transform: var(--ui-active-transform);
  transition: transform var(--ui-active-duration) ease-out;
}

:where(
  .ui-pressable,
  .header__brand,
  .header__tags-link,
  .header__theme-switch,
  .header__theme-button,
  .mobile-nav-tabs__item,
  .mobile-category-button,
  .genre-filter,
  .pagination__button,
  .radio-card,
  .podcast-card,
  .podcast-card__link,
  .podcast-player__genre-tag,
  .podcast-player__favorite-button,
  .podcast-player__control-button,
  .podcast-player__play-button,
  .podcast-episode__play-button,
  .podcast-episodes__show-more,
  .related-podcasts__item,
  .charts-item,
  .search-tabs__button,
  .search-podcast-item,
  .blog-card,
  .blog-card__link,
  .blog-article__back-button,
  .my-grid__empty-button,
  .sidebar__nav-item,
  .sidebar__dropdown-item,
  .footer__nav-link,
  .footer__flag,
  .footer__app-buttons a,
  .radio-player__play-button,
  .radio-player__favorite-overlay,
  .radio-info__tag,
  .radio-info__social-link,
  .radio-info__schedule-tab,
  .radio-songs__tab,
  .history-song,
  .embed-player__play,
  .embed-similar__item,
  .widget-type-card,
  .widget-builder__tab,
  .widget-builder__copy-btn,
  .wb-btn-reset,
  .wb-size-option,
  .broadcasters__btn,
  .broadcasters-modal__close,
  .blog-card__button,
  .search-tabs__tab,
  .most-played-item,
  .most-played-tabs__button,
  .ad-banner__button,
  .breadcrumb__link
)::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: radial-gradient(circle, var(--ui-bubble-color) 0%, transparent 72%);
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  transition: opacity var(--ui-press-duration) var(--ui-press-ease);
  pointer-events: none;
}

:where(
  .ui-pressable,
  .header__brand,
  .header__tags-link,
  .header__theme-switch,
  .header__theme-button,
  .mobile-nav-tabs__item,
  .mobile-category-button,
  .genre-filter,
  .pagination__button,
  .radio-card,
  .podcast-card,
  .podcast-card__link,
  .podcast-player__genre-tag,
  .podcast-player__favorite-button,
  .podcast-player__control-button,
  .podcast-player__play-button,
  .podcast-episode__play-button,
  .podcast-episodes__show-more,
  .related-podcasts__item,
  .charts-item,
  .search-tabs__button,
  .search-podcast-item,
  .blog-card,
  .blog-card__link,
  .blog-article__back-button,
  .my-grid__empty-button,
  .sidebar__nav-item,
  .sidebar__dropdown-item,
  .footer__nav-link,
  .footer__flag,
  .footer__app-buttons a,
  .radio-player__play-button,
  .radio-player__favorite-overlay,
  .radio-info__tag,
  .radio-info__social-link,
  .radio-info__schedule-tab,
  .radio-songs__tab,
  .history-song,
  .embed-player__play,
  .embed-similar__item,
  .widget-type-card,
  .widget-builder__tab,
  .widget-builder__copy-btn,
  .wb-btn-reset,
  .wb-size-option,
  .broadcasters__btn,
  .broadcasters-modal__close,
  .blog-card__button,
  .search-tabs__tab,
  .most-played-item,
  .most-played-tabs__button,
  .ad-banner__button,
  .breadcrumb__link
):active::after {
  animation: ui-bubble-up var(--ui-bubble-duration) var(--ui-press-ease);
}

/* -------------------------------------------------------------------------- */
/* Advertisement Containers                                                    */
/* -------------------------------------------------------------------------- */

/* Page top section containing mobile nav and header ad */
.page-top {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

/* Header banner ad container */
.ad-top-banner {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: 50px;
  padding: var(--space-sm) 0;
}

@media (min-width: 768px) {
  .ad-top-banner {
    min-height: 90px;
  }
}

/* Test/debug placeholder ads */
.ad-placeholder {
  display: flex;
  justify-content: center;
  align-items: center;
  background: repeating-linear-gradient(
    45deg,
    var(--color-border),
    var(--color-border) 10px,
    var(--color-surface) 10px,
    var(--color-surface) 20px
  );
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
}

.ad-placeholder__label {
  background-color: var(--color-surface);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

/* Sidebar ad containers */
.sidebar__ad--skyscraper {
  margin-bottom: var(--space-md);
}

/* Right sidebar ad containers */
.right-sidebar__ad--vrec,
.right-sidebar__ad--video-mrec {
  margin-bottom: var(--space-md);
}

/* Hide sidebar ads on mobile */
@media (max-width: 1023px) {
  .sidebar__ad--skyscraper,
  .right-sidebar__ad--vrec,
  .right-sidebar__ad--video-mrec {
    display: none;
  }
}