:root {
  --bg: #f7f9fd;
  --surface: #ffffff;
  --surface-rgb: 255, 255, 255;
  --surface-elevated: #ffffff;
  --surface-soft: #f1f6ff;
  --surface-muted: #f6f7fb;
  --text: #101827;
  --text-secondary: #475467;
  --muted: #667085;
  --line: #e5e9f2;
  --line-soft: #edf0f6;
  --primary: #4792f8;
  --primary-dark: #2875dc;
  --primary-soft: #eaf3ff;
  --primary-rgb: 71, 146, 248;
  --secondary: #c74db7;
  --secondary-dark: #a62f96;
  --secondary-soft: #fbeaf8;
  --secondary-rgb: 199, 77, 183;
  --accent: var(--secondary);
  --accent-soft: var(--secondary-soft);
  --whatsapp: var(--primary);
  --whatsapp-dark: var(--primary-dark);
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --warning-text: #92400e;
  --danger: #dc2626;
  --danger-soft: #fff1f2;
  --danger-hover: #ffe4e6;
  --success-bg: #ecfdf5;
  --success-text: #047857;
  --field-bg: #ffffff;
  --topbar-bg: rgba(255, 255, 255, 0.88);
  --section-soft-bg: rgba(255, 255, 255, 0.52);
  --overlay-bg: rgba(16, 24, 39, 0.54);
  --overlay-strong-bg: rgba(16, 24, 39, 0.56);
  --hero-bg: linear-gradient(135deg, rgba(var(--primary-rgb), 0.14), rgba(var(--secondary-rgb), 0.12)), var(--surface);
  --icon-btn-bg: rgba(255, 255, 255, 0.96);
  --footer-bg: rgba(255, 255, 255, 0.98);
  --placeholder: #98a2b3;
  --shadow-sm: 0 8px 24px rgba(16, 24, 39, 0.06);
  --shadow-md: 0 18px 48px rgba(16, 24, 39, 0.14);
  --shadow-panel: -22px 0 56px rgba(16, 24, 39, 0.18);
  --shadow-menu: 22px 0 54px rgba(16, 24, 39, 0.18);
  --shadow-floating: 0 14px 34px rgba(var(--primary-rgb), 0.3);
  --radius-card: 8px;
  --radius-ui: 14px;
  --radius-pill: 999px;
  --container: 1120px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e1524;
  --surface: #151e2f;
  --surface-rgb: 21, 30, 47;
  --surface-elevated: #1a263a;
  --surface-soft: #182844;
  --surface-muted: #101a2b;
  --text: #eef4ff;
  --text-secondary: #c2ccdc;
  --muted: #9aa8bc;
  --line: #26364f;
  --line-soft: #203049;
  --primary-dark: #75adfb;
  --primary-soft: rgba(var(--primary-rgb), 0.16);
  --secondary-dark: #ee8bdf;
  --secondary-soft: rgba(var(--secondary-rgb), 0.18);
  --warning-bg: #3b2a09;
  --warning-text: #fbbf24;
  --danger: #fb7185;
  --danger-soft: rgba(251, 113, 133, 0.14);
  --danger-hover: rgba(251, 113, 133, 0.22);
  --success-bg: #06281f;
  --success-text: #6ee7b7;
  --field-bg: #111b2d;
  --topbar-bg: rgba(14, 21, 36, 0.88);
  --section-soft-bg: rgba(21, 30, 47, 0.58);
  --overlay-bg: rgba(3, 7, 18, 0.68);
  --overlay-strong-bg: rgba(3, 7, 18, 0.72);
  --hero-bg: linear-gradient(135deg, rgba(var(--primary-rgb), 0.16), rgba(var(--secondary-rgb), 0.14)), var(--surface);
  --icon-btn-bg: rgba(21, 30, 47, 0.96);
  --footer-bg: rgba(14, 21, 36, 0.96);
  --placeholder: #78869a;
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 18px 48px rgba(0, 0, 0, 0.34);
  --shadow-panel: -22px 0 56px rgba(0, 0, 0, 0.36);
  --shadow-menu: 22px 0 54px rgba(0, 0, 0, 0.34);
  --shadow-floating: 0 16px 38px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
  scroll-padding-top: 82px;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Montserrat, Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 500;
  background:
    linear-gradient(180deg, rgba(var(--primary-rgb), 0.08) 0, rgba(var(--secondary-rgb), 0.04) 240px, var(--bg) 620px);
  color: var(--text);
  line-height: 1.45;
  padding-bottom: calc(84px + env(safe-area-inset-bottom));
  transition: background-color 180ms ease, color 180ms ease;
}

body,
.topbar,
.mobile-menu__panel,
.cart-panel,
.modal__content,
.confirm-modal__content,
.card,
.feedback-card,
.faq-card,
.os-card,
.technician-card,
.cart-item,
.catalog-search,
.field input,
.field textarea,
.select-shell select {
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

body.has-overlay {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  cursor: pointer;
}

img {
  max-width: 100%;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

button,
a,
input,
select {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(var(--primary-rgb), 0.24);
  outline-offset: 3px;
}

.icon {
  width: 1.1em;
  height: 1.1em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  font-size: 1.12em;
  line-height: 1;
}

.icon::before {
  line-height: 1;
}

.container {
  width: min(100% - 24px, var(--container));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--line);
  background: var(--topbar-bg);
  backdrop-filter: blur(18px);
}

.topbar__content {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  position: relative;
}

.brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex: 0 0 auto;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.brand__logo {
  width: min(42vw, 152px);
  height: 34px;
  flex: 0 0 auto;
  object-fit: contain;
}

html[data-theme="dark"] .brand__logo {
  filter: brightness(0) invert(1);
  opacity: 0.94;
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.desktop-nav a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border-radius: var(--radius-pill);
  padding: 0 12px;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.desktop-nav a:hover {
  background: var(--primary-soft);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.topbar__mobile-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.icon-btn {
  position: relative;
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--icon-btn-bg);
  color: var(--primary-dark);
  padding: 0;
  font-size: 1.22rem;
  line-height: 1;
  box-shadow: 0 8px 20px rgba(16, 24, 39, 0.05);
  transition: transform 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.theme-toggle {
  flex: 0 0 auto;
}

.icon-btn:hover {
  border-color: rgba(var(--primary-rgb), 0.28);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.icon-btn:active,
.btn:active,
.card__add-action:active,
.floating-cart:active {
  transform: scale(0.97);
}

.mobile-menu-open {
  flex: 0 0 auto;
}

.topbar__mobile-cart .cart-count {
  position: absolute;
  top: -5px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--secondary);
  color: #fff;
  font-size: 0.62rem;
  box-shadow: 0 6px 14px rgba(16, 24, 39, 0.14);
}

.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: var(--radius-ui);
  padding: 0 16px;
  font-weight: 850;
  line-height: 1;
  touch-action: manipulation;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary,
.whatsapp-link,
#sendWhatsApp {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 12px 26px rgba(var(--primary-rgb), 0.24);
}

.btn--primary:hover,
.whatsapp-link:hover,
#sendWhatsApp:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
}

.btn--secondary {
  background: var(--secondary);
  color: #fff;
}

.btn--ghost,
.instagram-link {
  border: 1px solid rgba(var(--primary-rgb), 0.16);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.btn--ghost:hover,
.instagram-link:hover {
  border-color: rgba(var(--secondary-rgb), 0.26);
  background: var(--secondary-soft);
  color: var(--secondary-dark);
}

.cart-count {
  min-width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--surface);
  color: var(--primary-dark);
  font-size: 0.72rem;
  font-weight: 850;
  padding: 0 6px;
}

.section {
  padding: 34px 0;
}

.section--soft {
  background: var(--section-soft-bg);
}

.catalog-section {
  padding-top: 22px;
}

.catalog-intro {
  position: relative;
  display: grid;
  gap: 14px;
  margin-bottom: 16px;
  border: 1px solid rgba(var(--primary-rgb), 0.14);
  border-radius: var(--radius-card);
  background: var(--hero-bg);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.catalog-intro h1 {
  max-width: 760px;
  margin: 7px 0 6px;
  font-size: 1.86rem;
  line-height: 1.02;
  font-weight: 900;
}

.catalog-intro p {
  max-width: 560px;
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  color: var(--secondary-dark);
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.catalog-shell {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.catalog-toolbar {
  display: block;
}

.catalog-search {
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 1px solid rgba(var(--primary-rgb), 0.2);
  border-radius: var(--radius-pill);
  background: var(--field-bg);
  color: var(--primary-dark);
  padding: 0 15px;
  box-shadow: var(--shadow-sm);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.catalog-search:focus-within {
  border-color: rgba(var(--primary-rgb), 0.68);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.12);
}

.catalog-search input {
  width: 100%;
  min-width: 0;
  height: 46px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 16px;
  font-weight: 650;
}

.catalog-search input::placeholder {
  color: var(--placeholder);
}

.catalog-type-row {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}

.type-tabs {
  display: flex;
  gap: 7px;
  overflow-x: auto;
  padding-bottom: 1px;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-overflow-scrolling: touch;
}

.type-tabs::-webkit-scrollbar {
  width: 0;
  height: 0;
  display: none;
}

.type-tabs button {
  min-height: 36px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--field-bg);
  color: var(--text-secondary);
  padding: 0 13px;
  font-size: 0.72rem;
  font-weight: 850;
  white-space: nowrap;
  touch-action: manipulation;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.type-tabs button:hover {
  border-color: rgba(var(--primary-rgb), 0.36);
  color: var(--primary-dark);
}

.type-tabs button.is-active {
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
}

.catalog-type-row {
  display: grid;
  gap: 8px;
  padding: 10px;
}

.catalog-type-row > span {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 850;
  text-transform: uppercase;
}

.select-shell {
  position: relative;
  display: block;
}

.select-shell select {
  width: 100%;
  min-height: 42px;
  appearance: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-ui);
  background: var(--field-bg);
  color: var(--text);
  padding: 0 42px 0 12px;
  outline: 0;
  font-size: 16px;
  font-weight: 700;
}

.select-shell select:focus {
  border-color: rgba(var(--primary-rgb), 0.68);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.1);
}

.select-icon {
  position: absolute;
  top: 50%;
  right: 14px;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.catalog-grid,
.feedback-grid,
.faq-grid {
  display: grid;
  gap: 11px;
}

.catalog-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
}

.card,
.feedback-card,
.faq-card,
.os-card,
.technician-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.card.catalog-card {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 9px;
  padding: 8px;
  overflow: hidden;
  animation: cardIn 360ms ease both;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.card.catalog-card:hover {
  transform: translateY(-2px);
  border-color: rgba(var(--primary-rgb), 0.28);
  box-shadow: 0 16px 34px rgba(16, 24, 39, 0.1);
}

.card__media {
  position: relative;
  display: block;
  aspect-ratio: 1 / 0.82;
  border-radius: var(--radius-card);
  border: 1px solid var(--line-soft);
  background: var(--surface-muted);
  overflow: hidden;
}

.card__media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.card__media .card__type,
.badge {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(var(--surface-rgb), 0.92);
  color: var(--primary-dark);
  font-size: 0.62rem;
  font-weight: 850;
  padding: 4px 8px;
}

.card__media .card__type {
  position: absolute;
  left: 7px;
  top: 7px;
  box-shadow: 0 6px 14px rgba(16, 24, 39, 0.08);
}

.card__highlight,
.price-label,
.card__support {
  display: none;
}

.card__body {
  min-width: 0;
  display: grid;
  align-content: start;
  gap: 8px;
}

.card__heading {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.card__heading small {
  min-width: 0;
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 750;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card h3 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  min-height: 2.48em;
  margin: 0;
  overflow: hidden;
  font-size: 0.82rem;
  line-height: 1.24;
  font-weight: 900;
}

.card p {
  display: none;
  margin: 0;
  color: var(--muted);
}

.card__price-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.card__price {
  color: var(--secondary-dark);
  font-size: 1rem;
  line-height: 1.1;
  font-weight: 900;
  white-space: nowrap;
}

.card__purchase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px;
  align-items: center;
  gap: 7px;
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
}

.card__details-link,
.card__add-action {
  border: 0;
  font: inherit;
  touch-action: manipulation;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.card__details-link {
  min-width: 0;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 4px;
  border-radius: var(--radius-ui);
  background: transparent;
  color: var(--primary-dark);
  padding: 0 7px;
  font-size: 0.7rem;
  font-weight: 850;
  text-align: left;
}

.card__details-link span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card__details-link:hover {
  background: var(--primary-soft);
}

.card__add-action {
  width: 40px;
  min-width: 40px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--radius-ui);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 10px 20px rgba(var(--primary-rgb), 0.22);
}

.card__add-action:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
  transform: translateY(-1px);
}

.card__add-action.is-added,
#modalAdd.is-added {
  background: var(--secondary);
  transform: scale(0.96);
}

.card__add-action .icon {
  font-size: 1.22rem;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 16px;
}

.section-heading h2 {
  margin: 7px 0 6px;
  font-size: 1.42rem;
  line-height: 1.08;
  font-weight: 900;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.os-lookup {
  display: grid;
  gap: 10px;
  align-items: end;
  border: 1px solid rgba(var(--primary-rgb), 0.14);
  border-radius: var(--radius-card);
  background: var(--surface);
  padding: 12px;
  box-shadow: var(--shadow-sm);
}

.field {
  display: grid;
  gap: 6px;
}

.field > span:first-child,
.technician-choice > span {
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 850;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-ui);
  background: var(--field-bg);
  color: var(--text);
  outline: 0;
  padding: 11px 12px;
  font-size: 16px;
  font-weight: 650;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  border-color: rgba(var(--primary-rgb), 0.68);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.1);
}

.os-status {
  min-height: 24px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 750;
}

.os-status[data-type="warning"] {
  color: var(--warning-text);
}

.os-result {
  margin-top: 8px;
}

.os-card {
  display: grid;
  gap: 14px;
  padding: 14px;
  animation: cardIn 280ms ease both;
}

.os-card__header {
  display: grid;
  gap: 8px;
}

.os-card__header h3,
.technician-card h3 {
  margin: 0;
  font-size: 1.04rem;
  line-height: 1.2;
  font-weight: 900;
}

.os-info-grid {
  display: grid;
  gap: 8px;
  margin: 0;
}

.os-info-grid div,
.details-list div,
.order-code-box,
.cart-summary {
  display: grid;
  gap: 2px;
  border-radius: var(--radius-card);
  background: var(--surface-muted);
  padding: 10px 12px;
}

.os-info-grid dt,
.os-block h4,
.details-list dt {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 850;
  text-transform: uppercase;
}

.os-info-grid dd,
.details-list dd {
  margin: 0;
  font-weight: 650;
}

.os-block {
  display: grid;
  gap: 8px;
}

.os-block h4,
.os-block p,
.os-block ul {
  margin: 0;
}

.os-block ul {
  padding-left: 18px;
}

.os-pdf-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.os-pdf-link {
  min-height: 42px;
}

.technician-grid {
  display: grid;
  gap: 11px;
}

.technician-card {
  display: grid;
  align-content: space-between;
  gap: 14px;
  padding: 14px;
}

.technician-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.technician-card__footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.technician-card__footer > span {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.faq-grid,
.feedback-grid {
  gap: 11px;
}

.feedback-card,
.faq-card {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 14px;
  overflow: hidden;
  animation: cardIn 340ms ease both;
}

.feedback-card::before,
.faq-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
}

.feedback-card strong,
.faq-card h3 {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.24;
  font-weight: 900;
}

.feedback-card p,
.faq-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.stars {
  color: var(--secondary);
  font-size: 0.9rem;
}

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

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 65;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.mobile-menu.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu__backdrop {
  position: absolute;
  inset: 0;
  background: var(--overlay-strong-bg);
}

.mobile-menu__panel {
  position: relative;
  width: min(86vw, 340px);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--surface);
  background-color: var(--surface);
  box-shadow: var(--shadow-menu);
  padding: 18px;
  transform: translateX(-100%);
  transition: transform 240ms cubic-bezier(.2, .8, .2, 1);
  isolation: isolate;
}

.mobile-menu.is-open .mobile-menu__panel {
  transform: translateX(0);
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}

.mobile-menu__header strong,
.mobile-menu__header span {
  display: block;
}

.mobile-menu__header strong {
  font-size: 1rem;
  font-weight: 900;
}

.mobile-menu__header span {
  color: var(--muted);
  font-size: 0.76rem;
}

.mobile-menu__nav {
  display: grid;
  gap: 7px;
}

.mobile-menu__nav a,
.mobile-menu__nav button {
  width: 100%;
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 0;
  border-radius: var(--radius-ui);
  background: transparent;
  color: var(--text);
  padding: 0 12px;
  font-size: 0.9rem;
  font-weight: 850;
  text-align: left;
}

.mobile-menu__nav a:hover,
.mobile-menu__nav button:hover,
.mobile-menu__nav a.is-active {
  background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
  color: var(--primary-dark);
}

.mobile-menu__cart {
  margin-top: 4px;
  background: linear-gradient(135deg, var(--primary), var(--secondary)) !important;
  color: #fff !important;
}

.floating-cart {
  position: fixed;
  right: 14px;
  bottom: calc(18px + env(safe-area-inset-bottom));
  z-index: 45;
  width: 58px;
  min-width: 58px;
  height: 58px;
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  border: 1px solid rgba(var(--surface-rgb), 0.64);
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  padding: 0;
  font-size: 1.2rem;
  font-weight: 900;
  box-shadow: var(--shadow-floating);
  transition: transform 180ms ease, opacity 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.floating-cart:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
  transform: translateY(-1px);
}

.floating-cart .cart-count {
  position: absolute;
  top: -5px;
  right: -3px;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  background: var(--surface);
  color: var(--secondary-dark);
  font-size: 0.64rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
}

.floating-cart.is-bumping,
.floating-cart.is-added {
  animation: cartBump 520ms ease;
}

.has-overlay .floating-cart {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
}

.cart-drawer,
.modal {
  position: fixed;
  inset: 0;
  z-index: 70;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  background: var(--overlay-bg);
}

.cart-drawer.is-open,
.modal.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  display: flex;
  justify-content: flex-end;
}

.cart-panel {
  width: min(100%, 480px);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  box-shadow: var(--shadow-panel);
  transform: none;
}

.cart-drawer:not(.is-open) .cart-panel {
  transform: translateX(100%);
}

.cart-panel__header {
  flex: 0 0 auto;
  display: grid;
  gap: 10px;
  align-items: start;
  justify-items: start;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08), rgba(var(--secondary-rgb), 0.08)), var(--surface);
  padding: 15px 14px 13px;
}

.cart-panel__title {
  display: grid;
  gap: 3px;
}

.cart-panel__header h2,
.cart-panel__header p {
  margin: 0;
}

.cart-panel__header h2 {
  font-size: 1.18rem;
  line-height: 1.14;
  font-weight: 900;
}

.cart-panel__header p {
  color: var(--muted);
  font-size: 0.8rem;
}

.cart-back-button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--field-bg);
  color: var(--primary-dark);
  padding: 0 13px 0 10px;
  font-size: 0.8rem;
  font-weight: 850;
  box-shadow: var(--shadow-sm);
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.cart-back-button:hover {
  border-color: rgba(var(--primary-rgb), 0.34);
  background: var(--primary-soft);
  transform: translateX(-1px);
}

.cart-scroll {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 13px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.cart-scroll::-webkit-scrollbar {
  width: 0;
  height: 0;
  display: none;
}

.cart-items {
  display: grid;
  align-content: start;
  gap: 10px;
}

.cart-item {
  position: relative;
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface-elevated);
  padding: 14px 16px 14px 20px;
  box-shadow: var(--shadow-sm);
}

.cart-item__top {
  min-width: 0;
  display: grid;
  gap: 8px;
}

.cart-item__main {
  min-width: 0;
  display: grid;
  align-content: center;
  gap: 8px;
  min-height: 96px;
}

.cart-item__heading {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  min-height: 40px;
}

.cart-item__text {
  min-width: 0;
  display: grid;
  gap: 3px;
  padding-right: 2px;
}

.cart-item__thumb {
  width: 96px;
  height: 96px;
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface-muted);
  object-fit: cover;
}

.cart-item__text strong {
  display: block;
}

.cart-item__text strong {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 0.92rem;
  line-height: 1.2;
  font-weight: 900;
}

.cart-item__badge {
  flex: 0 0 auto;
  border: 1px solid rgba(var(--primary-rgb), 0.24);
  border-radius: var(--radius-pill);
  background: var(--primary-soft);
  color: var(--primary-dark);
  padding: 5px 8px;
  font-size: 0.64rem;
  line-height: 1;
  font-weight: 900;
  white-space: nowrap;
}

.cart-item__remove {
  position: absolute;
  left: 10px;
  top: 10px;
  z-index: 1;
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  border: 1px solid rgba(220, 38, 38, 0.18);
  border-radius: var(--radius-card);
  background: var(--danger-soft);
  color: var(--danger);
  padding: 0;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.cart-item__remove:hover {
  background: var(--danger-hover);
  border-color: rgba(220, 38, 38, 0.2);
  transform: scale(0.98);
}

html[data-theme="dark"] .cart-item__remove {
  border-color: rgba(251, 113, 133, 0.46);
  background: rgba(251, 113, 133, 0.18);
  color: #ff7b91;
  box-shadow: 0 0 0 1px rgba(251, 113, 133, 0.08);
}

html[data-theme="dark"] .cart-item__remove:hover {
  border-color: rgba(251, 113, 133, 0.62);
  background: rgba(251, 113, 133, 0.26);
}

.cart-item__controls {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface-muted);
  min-height: 42px;
  padding: 6px 9px;
}

.qty,
.qty-controls {
  min-width: 0;
  display: inline-flex;
  align-items: center;
}

.qty {
  gap: 8px;
  padding: 0;
}

.qty > span {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 750;
}

.qty-controls {
  gap: 6px;
}

.qty-controls button {
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--field-bg);
  color: var(--primary-dark);
  padding: 0;
  font-weight: 900;
  transition: background 160ms ease, transform 160ms ease;
}

.qty-controls button:hover {
  background: var(--primary-soft);
}

.qty-controls strong {
  min-width: 24px;
  text-align: center;
  font-size: 0.88rem;
}

.cart-item__subtotal {
  flex: 0 0 auto;
  min-width: 0;
  justify-self: end;
  text-align: right;
  color: var(--secondary-dark);
  font-size: 0.96rem;
  line-height: 1.1;
  font-weight: 900;
  white-space: nowrap;
}

.cart-footer {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.credit-card-block {
  display: grid;
  gap: 8px;
}

.credit-card-block[hidden],
.card-fee-simulation[hidden] {
  display: none !important;
}

.card-fee-simulation p {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.34;
}

.card-fee-simulation {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface-elevated);
  overflow: hidden;
}

.card-fee-simulation__body {
  display: grid;
  gap: 10px;
  padding: 10px 12px 12px;
}

.card-fee-simulation__body > strong {
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 900;
}

.fee-simulation-grid {
  display: grid;
  gap: 6px;
  margin: 0;
}

.fee-simulation-grid div,
.fee-simulation-result {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.fee-simulation-grid dt,
.fee-simulation-result span {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
}

.fee-simulation-grid dd {
  margin: 0;
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 900;
  white-space: nowrap;
}

.fee-simulation-result strong {
  color: var(--secondary-dark);
  font-size: 0.9rem;
  line-height: 1.1;
  font-weight: 900;
  text-align: right;
}

.fee-simulation-warning {
  border-top: 1px solid var(--line-soft);
  padding-top: 8px;
}

.technician-choice {
  display: grid;
  gap: 8px;
}

.radio-card {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface-elevated);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.radio-card:has(input:checked) {
  border-color: rgba(var(--primary-rgb), 0.58);
  background: var(--primary-soft);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.radio-card input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

.radio-card strong,
.radio-card small {
  display: block;
}

.radio-card strong {
  font-size: 0.84rem;
  font-weight: 900;
}

.radio-card small {
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.32;
}

.order-code-box span,
.order-code-box strong,
.cart-summary span,
.cart-summary strong {
  display: block;
}

.order-code-box span,
.cart-summary span,
.cart-summary p {
  color: var(--muted);
}

.order-code-box span {
  font-size: 0.7rem;
  font-weight: 850;
}

.order-code-box strong {
  margin-top: 2px;
  font-size: 0.78rem;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.cart-summary {
  gap: 6px;
}

.cart-summary__total,
.cart-summary div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.cart-summary__total span,
.cart-summary div span {
  font-size: 0.82rem;
  font-weight: 900;
  color: var(--text);
}

.cart-summary__total strong,
.cart-summary div strong {
  color: var(--secondary-dark);
  font-size: 1.08rem;
  line-height: 1.1;
  font-weight: 900;
  white-space: nowrap;
}

.cart-summary p {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.32;
}

.cart-actions {
  display: grid;
  grid-template-columns: 0.74fr 1.26fr;
  gap: 8px;
}

.cart-actions--fixed {
  flex: 0 0 auto;
  border-top: 1px solid var(--line);
  background: var(--footer-bg);
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}

.cart-actions--fixed .btn {
  min-height: 46px;
  padding-inline: 12px;
  font-size: 0.8rem;
}

.empty {
  grid-column: 1 / -1;
  border: 1px dashed var(--line);
  border-radius: var(--radius-card);
  background: rgba(var(--surface-rgb), 0.74);
  color: var(--muted);
  padding: 18px;
  text-align: center;
  font-size: 0.9rem;
}

.toast {
  position: fixed;
  left: 50%;
  top: calc(72px + env(safe-area-inset-top));
  z-index: 90;
  width: min(calc(100vw - 24px), 440px);
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(var(--primary-rgb), 0.22);
  border-radius: var(--radius-card);
  background: var(--success-bg);
  color: var(--success-text);
  box-shadow: var(--shadow-md);
  padding: 11px 14px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 850;
  line-height: 1.35;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -12px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast[data-type="warning"] {
  border-color: rgba(245, 158, 11, 0.3);
  background: var(--warning-bg);
  color: var(--warning-text);
}

.toast[data-type="error"] {
  border-color: rgba(220, 38, 38, 0.26);
  background: var(--danger-soft);
  color: var(--danger);
}

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

.modal {
  display: grid;
  place-items: end center;
  padding: 12px;
  overflow: auto;
}

.modal__content {
  position: relative;
  width: min(100%, 560px);
  max-height: calc(100dvh - 24px);
  overflow: auto;
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  padding: 14px;
  transform: translateY(22px) scale(0.98);
  transition: transform 200ms ease;
}

.modal.is-open .modal__content {
  transform: translateY(0) scale(1);
}

.modal__close {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
}

.modal__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface-muted);
  object-fit: cover;
  margin-bottom: 12px;
}

.modal h2 {
  margin: 12px 52px 8px 0;
  font-size: 1.32rem;
  line-height: 1.14;
  font-weight: 900;
}

.modal p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.details-list {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}

#modalAdd {
  width: 100%;
}

.confirm-modal {
  place-items: center;
}

.confirm-modal__content {
  position: relative;
  width: min(100%, 420px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  padding: 20px;
  transform: translateY(14px) scale(0.98);
  transition: transform 200ms ease;
}

.confirm-modal.is-open .confirm-modal__content {
  transform: translateY(0) scale(1);
}

.confirm-modal__icon {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 1.28rem;
}

.confirm-modal h2 {
  margin: 14px 44px 6px 0;
  font-size: 1.2rem;
  line-height: 1.15;
  font-weight: 900;
}

.confirm-modal p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.confirm-modal__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 18px;
}

.btn--danger {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 12px 26px rgba(220, 38, 38, 0.22);
}

.btn--danger:hover {
  background: #b91c1c;
}

html[data-theme="dark"] .btn--danger:hover {
  background: #e11d48;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cartBump {
  0%,
  100% {
    transform: scale(1);
  }
  45% {
    transform: scale(1.08) translateY(-2px);
  }
}

@media (min-width: 640px) {
  .container {
    width: min(100% - 40px, var(--container));
  }

  .catalog-intro {
    padding: 24px;
  }

  .catalog-intro h1 {
    font-size: 2.2rem;
  }

  .catalog-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feedback-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .os-lookup {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .os-info-grid,
  .technician-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (min-width: 900px) {
  body {
    padding-bottom: 0;
  }

  .topbar__content {
    min-height: 72px;
  }

  .brand {
    position: static;
    transform: none;
  }

  .brand__logo {
    width: 172px;
    height: 40px;
  }

  .desktop-nav {
    display: flex;
  }

  .topbar__mobile-actions,
  .mobile-menu-open,
  .mobile-menu {
    display: none;
  }

  .section {
    padding: 56px 0;
  }

  .catalog-section {
    padding-top: 40px;
  }

  .catalog-shell {
    gap: 12px;
    margin-bottom: 18px;
  }

  .catalog-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .card.catalog-card {
    padding: 10px;
  }

  .card h3 {
    font-size: 0.9rem;
  }

  .card p {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    min-height: 2.5em;
    overflow: hidden;
    font-size: 0.76rem;
  }

  .card__price {
    font-size: 1.08rem;
  }

  .section-heading h2 {
    font-size: 1.76rem;
  }

  .modal {
    place-items: center;
  }

  .modal__image {
    aspect-ratio: 16 / 9;
  }

  .cart-panel__header {
    padding: 18px 18px 14px;
  }

  .cart-scroll {
    padding: 16px 18px;
  }

  .cart-actions--fixed {
    padding-inline: 18px;
  }
}

@media (max-width: 390px) {
  .container {
    width: min(100% - 20px, var(--container));
  }

  .brand__logo {
    width: min(39vw, 138px);
    height: 31px;
  }

  .topbar__mobile-actions {
    gap: 4px;
  }

  .icon-btn {
    width: 38px;
    height: 38px;
  }

  .catalog-grid {
    gap: 9px;
  }

  .card.catalog-card {
    padding: 7px;
  }

  .card__purchase {
    grid-template-columns: minmax(0, 1fr) 38px;
  }

  .card__details-link {
    min-height: 36px;
    padding-inline: 6px;
    font-size: 0.68rem;
  }

  .card__add-action {
    width: 38px;
    min-width: 38px;
    height: 36px;
  }

  .floating-cart {
    width: 54px;
    min-width: 54px;
    height: 54px;
    min-height: 54px;
    padding: 0;
    font-size: 1.12rem;
  }

  .cart-item {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 10px;
    padding: 11px 12px 11px 15px;
  }

  .cart-item__thumb {
    width: 76px;
    height: 76px;
  }

  .cart-item__main {
    min-height: 76px;
    gap: 7px;
  }

  .cart-item__heading {
    min-height: 35px;
  }

  .cart-item__text strong {
    font-size: 0.84rem;
  }

  .cart-item__controls {
    grid-template-columns: minmax(0, auto) minmax(0, 1fr);
    align-items: center;
    gap: 8px;
    min-height: 38px;
    padding: 5px 7px;
  }

  .qty {
    gap: 5px;
  }

  .qty > span {
    font-size: 0;
    width: 0;
    overflow: hidden;
  }

  .qty-controls {
    gap: 4px;
  }

  .qty-controls button {
    width: 24px;
    height: 24px;
  }

  .qty-controls strong {
    min-width: 20px;
    font-size: 0.82rem;
  }

  .cart-item__subtotal {
    font-size: 0.84rem;
  }

}

@media (max-width: 430px) {
  .cart-item__controls {
    gap: 8px;
    min-height: 38px;
    padding: 5px 7px;
  }

  .qty {
    gap: 5px;
  }

  .qty > span {
    font-size: 0;
    width: 0;
    overflow: hidden;
  }

  .qty-controls {
    gap: 4px;
  }

  .qty-controls button {
    width: 24px;
    height: 24px;
  }

  .qty-controls strong {
    min-width: 20px;
    font-size: 0.82rem;
  }

  .cart-item__subtotal {
    font-size: 0.84rem;
  }
}

@media (max-width: 380px) {
  .cart-item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 8px;
    padding: 10px;
  }

  .cart-item__thumb {
    width: 64px;
    height: 64px;
  }

  .cart-item__main {
    min-height: 64px;
    gap: 6px;
  }

  .cart-item__heading {
    min-height: 30px;
    gap: 6px;
  }

  .cart-item__text strong {
    font-size: 0.78rem;
    line-height: 1.18;
  }

  .cart-item__badge {
    padding: 4px 7px;
    font-size: 0.58rem;
  }

  .cart-item__controls {
    min-height: 34px;
    gap: 4px;
    padding: 4px 6px;
  }

  .qty {
    gap: 4px;
  }

  .qty > span {
    font-size: 0;
    width: 0;
    overflow: hidden;
  }

  .qty-controls {
    gap: 3px;
  }

  .qty-controls button {
    width: 22px;
    height: 22px;
    font-size: 0.78rem;
  }

  .qty-controls strong {
    min-width: 18px;
    font-size: 0.78rem;
  }

  .cart-item__subtotal {
    font-size: 0.78rem;
  }

  .cart-item__remove {
    left: 7px;
    top: 7px;
    width: 24px;
    height: 24px;
  }
}

@media (max-height: 640px) {
  .cart-summary p {
    display: none;
  }

  .order-code-box strong {
    max-height: 2.7em;
    overflow: hidden;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}