/* HearingDB build 35: shared shell and primitives */

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.admin-overlay-open {
  overflow: hidden;
}

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

a,
button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

input,
select,
textarea {
  color: var(--text);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--heading);
}

small {
  color: var(--muted);
}

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

:focus-visible {
  outline: none;
  box-shadow: var(--ring);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

.site-shell,
.site-page {
  min-height: 100vh;
}

.site-page {
  display: flex;
  flex-direction: column;
}

.page-container {
  flex: 1;
  padding: clamp(18px, 2.4vw, 34px) 0 clamp(54px, 7vw, 104px);
}

.container,
.container-fluid {
  width: min(var(--content-max), calc(100vw - (var(--content-gutter) * 2)));
  padding: 0;
  margin: 0 auto;
}

.container-fluid {
  width: min(1840px, calc(100vw - (var(--content-gutter) * 2)));
}

.page-container--full .container-fluid {
  width: min(1900px, calc(100vw - (var(--content-gutter) * 2)));
}

.content-container {
  max-width: 1100px;
  margin: 0 auto;
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(14px) saturate(125%);
  -webkit-backdrop-filter: blur(14px) saturate(125%);
}

.app-header__inner {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 70px;
  padding: 8px var(--content-gutter);
  margin: 0;
  gap: 14px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 10px;
  color: var(--text-strong);
  font-weight: 900;
  letter-spacing: -0.045em;
  white-space: nowrap;
}

.brand-lockup:hover {
  color: var(--text-strong);
}

.brand-mark {
  position: relative;
  display: inline-flex;
  width: 34px;
  height: 34px;
  overflow: hidden;
  border: 1px solid rgba(8, 21, 34, 0.14);
  border-radius: 0;
  background: #fff;
}

.brand-mark__left,
.brand-mark__right {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
}

.brand-mark__left {
  left: 0;
  background: var(--chart-left-red);
}

.brand-mark__right {
  right: 0;
  background: var(--chart-right-blue);
}

.brand-mark__icon {
  position: absolute;
  inset: 7px;
  z-index: 2;
  width: 20px;
  height: 20px;
  color: #fff;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.18));
}

.brand-wordmark {
  font-size: 1.06rem;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-cluster,
.account-menu {
  position: relative;
}

.nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 13px;
  gap: 7px;
  border: 0;
  border-radius: 0;
  color: #344252;
  background: transparent;
  font-size: 0.92rem;
  font-weight: 750;
  transition: color var(--motion-fast) ease, background var(--motion-fast) ease;
}

.nav-item::after {
  position: absolute;
  right: 12px;
  bottom: 5px;
  left: 12px;
  height: 2px;
  content: "";
  background: var(--text-strong);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--motion-standard) var(--ease-out);
}

.nav-item:hover,
.nav-item.active,
.nav-item--button[aria-expanded="true"] {
  color: var(--text-strong);
  background: #f0f3f2;
}

.nav-item:hover::after,
.nav-item.active::after,
.nav-item--button[aria-expanded="true"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-item--button {
  appearance: none;
}

.browse-panel,
.account-panel {
  position: absolute;
  top: calc(100% + 12px);
  z-index: 1001;
  min-width: 340px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--motion-fast) ease, transform var(--motion-fast) var(--ease-out), visibility var(--motion-fast) ease;
}

.browse-open .browse-panel,
.account-open .account-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.browse-panel {
  left: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.browse-panel a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px;
  border-radius: 0;
  color: var(--text);
  transition: background var(--motion-fast) ease, transform var(--motion-fast) ease;
}

.browse-panel a:hover {
  color: var(--text-strong);
  background: var(--bg-soft);
  transform: translateX(2px);
}

.browse-panel strong {
  font-size: 0.92rem;
}

.browse-panel span {
  color: var(--muted);
  font-size: 0.79rem;
  line-height: 1.4;
}

.header-actions {
  display: flex;
  align-items: center;
  min-width: 0;
  margin-left: auto;
  gap: 8px;
}

.global-search,
.mobile-search {
  display: flex;
  align-items: center;
  gap: 5px;
}

.global-search {
  width: clamp(240px, 24vw, 420px);
  min-height: 44px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 0;
  background: #f7f9f8;
  transition: border-color var(--motion-fast) ease, background var(--motion-fast) ease;
}

.global-search:focus-within {
  border-color: rgba(25, 95, 200, 0.45);
  background: #fff;
}

.global-search input,
.mobile-search input {
  flex: 1;
  min-width: 0;
  padding: 0 10px;
  border: 0;
  outline: 0;
  color: var(--text);
  background: transparent;
  font-size: 0.9rem;
}

.global-search input::placeholder,
.mobile-search input::placeholder {
  color: #89939e;
}

.global-search button,
.mobile-search button {
  min-height: 36px;
  padding: 0 13px;
  border: 0;
  border-radius: 0;
  color: #fff;
  background: var(--text-strong);
  font-size: 0.83rem;
  font-weight: 800;
  transition: background var(--motion-fast) ease, transform var(--motion-fast) ease;
}

.global-search button:hover,
.mobile-search button:hover {
  background: var(--primary);
  transform: translateY(-1px);
}

.account-pill,
.login-pill {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  gap: 7px;
  border: 1px solid var(--border);
  border-radius: 0;
  color: var(--text-strong);
  background: #fff;
  font-size: 0.9rem;
  font-weight: 800;
  white-space: nowrap;
  transition: border-color var(--motion-fast) ease, background var(--motion-fast) ease;
}

.account-pill:hover,
.login-pill:hover {
  color: var(--text-strong);
  border-color: var(--border-strong);
  background: var(--bg-soft);
}

.account-panel {
  right: 0;
  display: flex;
  flex-direction: column;
  min-width: 220px;
  gap: 3px;
}

.account-panel a {
  padding: 11px 12px;
  border-radius: 0;
  color: var(--text);
  font-weight: 700;
}

.account-panel a:hover {
  color: var(--text-strong);
  background: var(--bg-soft);
}

.mobile-menu-button {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 44px;
  height: 44px;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 0;
  background: #fff;
}

.mobile-menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-strong);
  transition: transform var(--motion-fast) ease, opacity var(--motion-fast) ease;
}

.mobile-drawer {
  display: none;
  width: 100%;
  padding: 10px var(--content-gutter) 14px;
  margin: 0;
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.99);
  box-shadow: none;
}

body.mobile-nav-open {
  overflow: hidden;
}

.mobile-drawer a {
  display: block;
  padding: 12px;
  border-radius: 0;
  color: var(--text);
  font-weight: 800;
}

.mobile-drawer a:hover {
  background: var(--bg-soft);
}

.mobile-search {
  margin-bottom: 8px;
  border: 1px solid var(--border);
  background: #f7f9f8;
}

.mobile-search input {
  min-height: 42px;
}

/* Footer */
.app-footer {
  padding: 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.58);
}

.app-footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  width: 100%;
  padding: clamp(28px, 4vw, 58px) var(--content-gutter);
  margin: 0;
  gap: 32px;
  border: 0;
  background: transparent;
}

.footer-summary p {
  max-width: 500px;
  margin: 16px 0 0;
  line-height: 1.65;
}

.brand-lockup--footer {
  font-size: 1.05rem;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.footer-columns h4 {
  margin: 0 0 12px;
  color: var(--text-strong);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-columns a {
  display: block;
  padding: 5px 0;
  color: var(--muted);
  font-weight: 700;
  transition: color var(--motion-fast) ease, transform var(--motion-fast) ease;
}

.footer-columns a:hover {
  color: var(--text-strong);
  transform: translateX(2px);
}

.footer-bottom {
  width: 100%;
  margin: 0;
  padding: 14px var(--content-gutter) 18px;
  border-top: 1px solid var(--border);
  color: #87919c;
  font-size: 0.82rem;
  text-align: center;
}

/* Shared notices */
.flash-stack {
  display: grid;
  gap: 10px;
  margin: 0 0 18px;
}

.flash-message {
  padding: 12px 14px;
  border: 1px solid rgba(25, 95, 200, 0.2);
  border-radius: 0;
  color: #17396d;
  background: var(--primary-soft);
  font-weight: 700;
}

/* Motion hooks */
.motion-enabled [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--motion-slow) var(--ease-out), transform var(--motion-slow) var(--ease-out);
}

.motion-enabled [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-motion-surface] {
  --motion-x: 0px;
  --motion-y: 0px;
  --motion-x-soft: 0px;
  --motion-y-soft: 0px;
  --motion-x-strong: 0px;
  --motion-y-strong: 0px;
  --motion-x-reverse: 0px;
  --motion-y-reverse: 0px;
}

@media (max-width: 1180px) {
  .global-search {
    width: clamp(210px, 22vw, 320px);
  }

  .desktop-nav .nav-item {
    padding-inline: 10px;
  }
}

@media (max-width: 980px) {
  .desktop-nav,
  .global-search,
  .account-menu,
  .login-pill {
    display: none;
  }

  .mobile-menu-button {
    display: flex;
    margin-left: auto;
  }

  .mobile-open .mobile-drawer {
    display: block;
    max-height: calc(100dvh - var(--header-height));
    padding-bottom: max(14px, env(safe-area-inset-bottom));
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  .mobile-open .mobile-menu-button span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .mobile-open .mobile-menu-button span:nth-child(2) {
    opacity: 0;
  }

  .mobile-open .mobile-menu-button span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}

@media (max-width: 760px) {
  .app-header__inner {
    padding-inline: 10px;
  }

  .page-container {
    padding-top: 14px;
  }

  .container,
  .container-fluid,
  .page-container--full .container-fluid {
    width: min(100% - 20px, var(--content-max));
  }

  .app-footer__inner {
    grid-template-columns: 1fr;
  }

  .footer-columns {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 520px) {
  .brand-wordmark {
    font-size: 1rem;
  }

  .footer-columns {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .motion-enabled [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Shared buttons and compare dock ------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--border-strong);
  border-radius: 0;
  color: var(--text-strong);
  background: #fff;
  font-size: 0.86rem;
  font-weight: 800;
  transition: color var(--motion-fast) ease, background var(--motion-fast) ease, border-color var(--motion-fast) ease, transform var(--motion-fast) ease;
}

.btn:hover {
  color: var(--text-strong);
  border-color: var(--text-strong);
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  border-color: var(--text-strong);
  background: var(--text-strong);
}

.btn-primary:hover {
  color: #fff;
  border-color: var(--primary);
  background: var(--primary);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

#compare-bar {
  position: fixed;
  left: 50%;
  bottom: 14px;
  z-index: 1100;
  width: min(1180px, calc(100vw - 24px));
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, calc(100% + 34px));
  transition: opacity var(--motion-standard) ease, transform var(--motion-standard) var(--ease-out);
}

#compare-bar.active {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.compare-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px;
  gap: 12px;
  border: 1px solid var(--border-strong);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.compare-bar-left,
.compare-bar-right,
.compare-bar-items,
.compare-pill {
  display: flex;
  align-items: center;
}

.compare-bar-left {
  flex: 1;
  min-width: 0;
  gap: 12px;
}

.compare-bar-title {
  display: grid;
  min-width: 86px;
  gap: 2px;
}

.compare-bar-title-text {
  color: var(--text-strong);
  font-weight: 900;
  letter-spacing: -0.03em;
}

.compare-bar-count,
.compare-pill-brand {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
}

.compare-bar-items {
  min-width: 0;
  padding: 2px;
  gap: 7px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.compare-bar-right {
  flex: 0 0 auto;
  gap: 7px;
}

.compare-pill {
  min-width: 184px;
  max-width: 224px;
  padding: 6px 8px;
  gap: 7px;
  border: 1px solid var(--border);
  border-radius: 0;
  background: #fff;
  cursor: pointer;
  transition: border-color var(--motion-fast) ease, transform var(--motion-fast) ease;
}

.compare-pill:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.compare-pill.dragging {
  opacity: 0.55;
}

.drag-ghost {
  position: absolute;
  top: -9999px;
  left: -9999px;
}

.compare-pill-img {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 0;
  background: #f7f9f8;
}

.compare-pill-img img {
  width: 100%;
  height: 100%;
  padding: 3px;
  object-fit: contain;
}

.drag-handle {
  color: var(--muted-2);
  font-weight: 900;
  cursor: grab;
}

.compare-pill-text {
  display: grid;
  min-width: 0;
  gap: 1px;
}

.compare-pill-brand,
.compare-pill-model {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.compare-pill-brand {
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.compare-pill-model {
  color: var(--text-strong);
  font-size: 0.82rem;
  font-weight: 850;
}

.compare-pill-remove {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 0;
  color: var(--text-strong);
  background: #eef1f0;
  font-weight: 900;
}

.compare-pill-remove:hover {
  color: #fff;
  background: var(--danger);
}

.compare-toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--compare-bar-safe, 0px) + 20px);
  z-index: 1200;
  max-width: calc(100vw - 24px);
  padding: 10px 14px;
  border-radius: 0;
  color: #fff;
  background: var(--text-strong);
  box-shadow: var(--shadow-md);
  font-weight: 800;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity var(--motion-fast) ease, transform var(--motion-fast) ease;
}

.compare-toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 900px) {
  .compare-bar-inner,
  .compare-bar-left {
    align-items: stretch;
    flex-direction: column;
  }

  .compare-bar-items,
  .compare-bar-right {
    width: 100%;
  }

  .compare-bar-right {
    justify-content: flex-end;
  }
}

@media (max-width: 560px) {
  .compare-pill {
    min-width: 168px;
  }

  .compare-bar-right .btn {
    flex: 1;
  }
}