*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --radius: 12px;
  --radius-sm: 8px;
  --font: "DM Sans", system-ui, -apple-system, sans-serif;
  --max-w: 1240px;
  --header-h: 60px;
  --transition: 0.15s ease;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #121316;
  --bg-elevated: #1a1c21;
  --surface: #22252b;
  --surface-hover: #2a2e36;
  --text: #eceef2;
  --text-secondary: #9aa3af;
  --border: #343841;
  --border-strong: #454b57;
  --accent: #6b9fd4;
  --accent-hover: #8ab4e0;
  --accent-text: #121316;
  --error: #f87171;
  --error-bg: rgba(248, 113, 113, 0.1);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-mobile: 0 2px 12px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #eef0f3;
  --bg-elevated: #f7f8fa;
  --surface: #ffffff;
  --surface-hover: #f3f4f6;
  --text: #1a1d22;
  --text-secondary: #5f6672;
  --border: #dde1e8;
  --border-strong: #c8ced8;
  --accent: #2f5578;
  --accent-hover: #243f58;
  --accent-text: #ffffff;
  --error: #c53030;
  --error-bg: rgba(197, 48, 48, 0.08);
  --shadow: 0 8px 28px rgba(20, 30, 50, 0.08);
  --shadow-mobile: 0 2px 10px rgba(20, 30, 50, 0.06);
}

html {
  height: 100%;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100%;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  transition: background var(--transition), color var(--transition);
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

.shell {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: max(1rem, var(--safe-left));
  padding-right: max(1rem, var(--safe-right));
}

@media (min-width: 640px) {
  .shell {
    padding-left: max(1.5rem, var(--safe-left));
    padding-right: max(1.5rem, var(--safe-right));
  }
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding-top: var(--safe-top);
  transition: background var(--transition), border-color var(--transition);
}

.header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  min-height: 44px;
  color: var(--text);
  text-decoration: none;
}

.brand__icon {
  flex-shrink: 0;
  color: var(--accent);
}

.brand__name {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
}

.brand__accent {
  color: var(--accent);
}

.brand:hover {
  opacity: 0.9;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  touch-action: manipulation;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.theme-toggle:hover {
  background: var(--surface-hover);
  color: var(--text);
  border-color: var(--border-strong);
}

[data-theme="dark"] .theme-toggle__icon--sun {
  display: inline;
}

[data-theme="dark"] .theme-toggle__icon--moon {
  display: none;
}

[data-theme="light"] .theme-toggle__icon--sun {
  display: none;
}

[data-theme="light"] .theme-toggle__icon--moon {
  display: inline;
}

/* Main layout */
.main {
  flex: 1;
  width: 100%;
  padding-top: 1rem;
  padding-bottom: calc(1.5rem + var(--safe-bottom));
}

@media (min-width: 640px) {
  .main {
    padding-top: 1.5rem;
    padding-bottom: calc(2.5rem + var(--safe-bottom));
  }
}

@media (min-width: 960px) {
  .main {
    padding-top: 2.5rem;
    padding-bottom: calc(3rem + var(--safe-bottom));
  }
}

.layout {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

@media (min-width: 640px) {
  .layout {
    gap: 1rem;
  }
}

@media (min-width: 960px) {
  .layout--split {
    display: grid;
    grid-template-columns: minmax(340px, 420px) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
  }

  .layout--split .panel--search {
    position: sticky;
    top: calc(var(--header-h) + var(--safe-top) + 1.25rem);
  }
}

@media (min-width: 1200px) {
  .layout--split {
    grid-template-columns: 400px minmax(0, 1fr);
    gap: 2rem;
  }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.125rem;
  box-shadow: var(--shadow-mobile);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

@media (min-width: 640px) {
  .panel {
    padding: 1.5rem;
    box-shadow: var(--shadow);
  }
}

@media (min-width: 960px) {
  .panel {
    padding: 2rem;
  }
}

.panel__head {
  margin-bottom: 1.25rem;
}

@media (min-width: 960px) {
  .panel__head {
    margin-bottom: 1.5rem;
  }
}

.panel__title {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
}

@media (min-width: 640px) {
  .panel__title {
    font-size: 1.3125rem;
  }
}

@media (min-width: 960px) {
  .panel__title {
    font-size: 1.5rem;
  }
}

.panel__note {
  margin-top: 0.75rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

@media (min-width: 640px) {
  .panel__note {
    margin-top: 0.875rem;
    padding-top: 1rem;
    font-size: 0.875rem;
  }
}

@media (min-width: 960px) {
  .panel__note {
    font-size: 0.9375rem;
  }
}

.track-form__label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

@media (min-width: 960px) {
  .track-form__label {
    font-size: 0.8125rem;
  }
}

.track-form__row {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

@media (min-width: 640px) {
  .track-form__row {
    flex-direction: row;
    align-items: stretch;
  }
}

.track-form input {
  flex: 1;
  width: 100%;
  min-height: 48px;
  padding: 0 1rem;
  font-size: 16px;
  font-family: inherit;
  letter-spacing: 0.02em;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--text);
  transition: border-color var(--transition), background var(--transition);
}

@media (min-width: 960px) {
  .track-form input {
    min-height: 50px;
  }
}

.track-form input::placeholder {
  color: var(--text-secondary);
  opacity: 0.65;
}

.track-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.track-form input.is-invalid {
  border-color: var(--error);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--error) 15%, transparent);
}

.track-form__hint {
  margin-top: 0.625rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.track-form__hint strong {
  color: var(--text);
  font-weight: 600;
}

.track-form__error {
  margin-top: 0.75rem;
  padding: 0.75rem;
  font-size: 0.8125rem;
  color: var(--error);
  background: var(--error-bg);
  border-radius: var(--radius-sm);
  line-height: 1.5;
}

.track-form button {
  min-height: 48px;
  padding: 0 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  font-family: inherit;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
  touch-action: manipulation;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
  white-space: nowrap;
}

@media (min-width: 640px) {
  .track-form button {
    min-width: 124px;
  }
}

@media (min-width: 960px) {
  .track-form button {
    min-height: 50px;
  }
}

.track-form button:hover:not(:disabled) {
  filter: brightness(1.08);
}

[data-theme="light"] .track-form button:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  filter: none;
}

.track-form button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Results */
.panel--results {
  padding: 0;
  overflow: hidden;
}

.panel__results-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  padding: 0.875rem 1.125rem;
  border-bottom: 1px solid var(--border);
}

@media (min-width: 640px) {
  .panel__results-head {
    padding: 1rem 1.5rem;
  }
}

@media (min-width: 960px) {
  .panel__results-head {
    padding: 1.125rem 2rem;
  }
}

.panel__results-title {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

@media (min-width: 640px) {
  .panel__results-title {
    font-size: 0.8125rem;
  }
}

@media (min-width: 960px) {
  .panel__results-title {
    font-size: 0.875rem;
  }
}

.panel__results-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.action-btn {
  min-height: 36px;
  padding: 0 0.875rem;
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  touch-action: manipulation;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.action-btn:hover {
  background: var(--surface-hover);
  color: var(--text);
  border-color: var(--border-strong);
}

.panel__results-body {
  position: relative;
}

.panel__results-body.is-loading .panel__results {
  opacity: 0;
  pointer-events: none;
  min-height: 10rem;
}

.widget-loading {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 2;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 10rem;
  padding: 2rem 1.125rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  background: var(--surface);
}

.widget-loading.is-visible {
  display: flex;
}

@media (min-width: 640px) {
  .widget-loading {
    padding: 2rem 1.5rem;
  }
}

@media (min-width: 960px) {
  .widget-loading {
    min-height: 8rem;
    padding: 2rem;
  }
}

.widget-loading__spinner {
  width: 1.125rem;
  height: 1.125rem;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: widget-spin 0.7s linear infinite;
}

@keyframes widget-spin {
  to {
    transform: rotate(360deg);
  }
}

.panel__results {
  overflow: visible;
}

#YQContainer {
  width: 100%;
  line-height: 0;
}

#YQContainer iframe {
  display: block;
  width: 100% !important;
  max-width: 100%;
  border: none !important;
  box-shadow: none !important;
  vertical-align: top;
}

.fallback {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem 0.625rem;
  margin-top: 1.125rem;
  padding-top: 1.125rem;
  border-top: 1px solid var(--border);
}

@media (min-width: 960px) {
  .fallback {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
  }
}

.fallback__text {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.fallback__btn {
  min-height: 44px;
  padding: 0.375rem 0.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--accent);
  background: none;
  border: none;
  cursor: pointer;
  touch-action: manipulation;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.fallback__btn:hover:not(:disabled) {
  color: var(--accent-hover);
}

.fallback__btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

@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;
  }
}