/* =========================================================
   PROFVITRINA — Industrial Intelligence Platform
   Design System: Industrial Enterprise SaaS
   ========================================================= */

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

:root {
  --primary: #0057FF;
  --primary-hover: #0046d6;
  --dark: #061B3A;
  --accent: #1E9BFF;
  --bg: #F4F8FC;
  --text: #0B1F3A;
  --text-secondary: #4A6A8A;
  --border: #D4DFEA;
  --white: #ffffff;
  --card-bg: #ffffff;
  --shadow-sm: 0 1px 3px rgba(6, 27, 58, 0.06);
  --shadow-md: 0 4px 16px rgba(6, 27, 58, 0.08);
  --shadow-lg: 0 8px 32px rgba(6, 27, 58, 0.12);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.2s ease;
  --container: 1200px;
  --header-h: 64px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

ul, ol {
  list-style: none;
}

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

button, input, select {
  font: inherit;
  border: none;
  outline: none;
  background: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* --- Container --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  line-height: 1;
  padding: 10px 20px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}

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

.btn--outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn--outline:hover {
  background: var(--primary);
  color: var(--white);
}

.btn--white {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
}
.btn--white:hover {
  background: var(--bg);
  border-color: var(--bg);
}

.btn--outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

.btn--lg {
  padding: 14px 28px;
  font-size: 15px;
}

.btn--sm {
  padding: 6px 14px;
  font-size: 13px;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--dark);
}

.logo__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: var(--white);
  border-radius: 6px;
  font-weight: 800;
  font-size: 16px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav__link:hover {
  color: var(--primary);
}

.header__cta {
  margin-left: 16px;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  justify-content: center;
}
.burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: all var(--transition);
}
.burger--active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.burger--active span:nth-child(2) {
  opacity: 0;
}
.burger--active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero --- */
.hero {
  padding-top: calc(var(--header-h) + 48px);
  padding-bottom: 64px;
  background: linear-gradient(180deg, var(--white) 0%, var(--bg) 100%);
}

.hero__content {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 32px;
}

.hero__label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(0, 87, 255, 0.08);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--dark);
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Search Block --- */
.search-block {
  max-width: 960px;
  margin: 0 auto 40px;
}

.search-block__bar {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 6px 6px 6px 18px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-block__bar:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 87, 255, 0.1);
}

.search-block__icon {
  flex-shrink: 0;
  color: var(--text-secondary);
  margin-right: 12px;
}

.search-block__input {
  flex: 1;
  font-size: 15px;
  color: var(--text);
  padding: 12px 0;
}
.search-block__input::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

.search-block__btn {
  flex-shrink: 0;
  padding: 12px 24px;
}

.search-block__filters {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.filter-group {
  flex: 1;
  min-width: 180px;
}

.filter-group__label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.filter-group__select {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%234A6A8A' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.filter-group__select:focus {
  border-color: var(--primary);
}

/* --- System Window --- */
.system-window {
  max-width: 1040px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 48px rgba(6, 27, 58, 0.12), 0 2px 8px rgba(6, 27, 58, 0.06);
  border: 1px solid var(--border);
  background: var(--white);
}

.system-window__chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.system-window__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.system-window__dot--red { background: #ff5f57; }
.system-window__dot--yellow { background: #febc2e; }
.system-window__dot--green { background: #28c840; }

.system-window__title {
  flex: 1;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.01em;
}

.system-window__status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.45);
}

.system-window__pulse {
  width: 7px;
  height: 7px;
  background: #28c840;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.system-window__body {
  padding: 28px 24px;
}

.system-window__footer {
  display: flex;
  justify-content: space-between;
  padding: 10px 24px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
}

/* --- System Metrics --- */
.sys-metrics {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  padding: 14px 0 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.sys-metrics__item {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.sys-metrics__item--update {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}

.sys-metrics__number {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.sys-metrics__label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.sys-metrics__divider {
  width: 1px;
  height: 20px;
  background: var(--border);
}

/* --- Approach Comparison --- */
.approach {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
}

.approach__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.approach__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.approach__label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.approach__col--old .approach__label {
  color: var(--text-secondary);
}
.approach__col--new .approach__label {
  color: var(--primary);
}

.approach__flow {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.approach__step-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.approach__icon {
  display: none;
  flex-shrink: 0;
}

.approach__step-item--active {
  background: rgba(0, 87, 255, 0.08);
  border-color: rgba(0, 87, 255, 0.2);
  color: var(--primary);
}

.approach__arrow {
  font-size: 14px;
  color: var(--text-secondary);
  opacity: 0.5;
}

.approach__vs {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  opacity: 0.4;
  padding: 0 8px;
}

.approach__benefit {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(34, 197, 94, 0.06);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius);
  margin-top: 8px;
}

.approach__benefit-icon {
  color: #22c55e;
  flex-shrink: 0;
}

.approach__benefit-title {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
}

.approach__benefit-desc {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

/* --- Manufacturers --- */
.manufacturers {
  padding: 40px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.manufacturers__label {
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}

.manufacturers__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 24px 40px;
}

.mfr-logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-secondary);
  opacity: 0.35;
  transition: opacity var(--transition);
  user-select: none;
}

.mfr-logo:hover {
  opacity: 0.7;
}

/* --- Catalog Metrics --- */
.catalog-metrics {
  padding: 40px 0 40px;
  background: var(--white);
}

.catalog-metrics__label {
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.catalog-metrics__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 16px 32px;
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.catalog-metrics__item {
  display: flex;

  gap: 8px;
  align-items: center;
}

.catalog-metrics__num {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.02em;
  line-height: 1;
}

.catalog-metrics__desc {
  font-size: 14px;
  color: var(--text-secondary);
}

.catalog-metrics__icon {
  display: flex;
  align-items: center;
  color: var(--primary);
}

.catalog-metrics__icon + .catalog-metrics__desc {
  color: var(--primary);
  font-weight: 500;
}

/* --- Compare Params --- */
.compare-params__subtitle {
  text-align: center;
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.compare-params__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.compare-params__card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow var(--transition);
}

.compare-params__card:hover {
  box-shadow: var(--shadow-md);
}

.compare-params__card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.compare-params__card-header svg {
  color: var(--primary);
  flex-shrink: 0;
}

.compare-params__card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
}

.compare-params__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.compare-params__list li {
  font-size: 14px;
  color: var(--text);
  padding-left: 16px;
  position: relative;
}

.compare-params__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.3;
}

/* --- Use Cases --- */
.use-cases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.scenario-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0;
  transition: box-shadow var(--transition);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.scenario-card:hover {
  box-shadow: var(--shadow-md);
}

.scenario-card__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
}

.scenario-card__header svg {
  color: var(--primary);
  flex-shrink: 0;
}

.scenario-card__body {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 20px;
  gap: 0;
  flex-grow: 2;
  justify-content: center;
}

.scenario-card__step {
  text-align: center;
}

.scenario-card__label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.scenario-card__big {
  display: block;
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.01em;
}

.scenario-card__detail {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.scenario-card__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin: 12px 0;
  color: var(--primary);
  opacity: 0.5;
}

.scenario-card__result {
  text-align: center;
  background: rgba(0, 87, 255, 0.06);
  border-radius: var(--radius);
  padding: 12px 16px;
  width: 100%;
}

.scenario-card__result-num {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 2px;
}

.scenario-card__result-desc {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

/* --- Manual vs Platform --- */
.manual-vs {
  background: var(--bg);
}

.manual-vs__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.manual-vs__col {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.manual-vs__col--old {
  opacity: 0.6;
}

.manual-vs__col--new {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px rgba(0, 87, 255, 0.1), var(--shadow-md);
}

.manual-vs__heading {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.manual-vs__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.manual-vs__list li {
  font-size: 14px;
  color: var(--text);
  padding-left: 20px;
  position: relative;
}

.manual-vs__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--border);
}

.manual-vs__col--new .manual-vs__list li::before {
  border-color: var(--primary);
  background: rgba(0, 87, 255, 0.15);
}

/* --- Roadmap --- */
.roadmap__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.roadmap__col {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.roadmap__status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.roadmap__subtitle {
  text-align: center;
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.roadmap__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.roadmap__status--stage1 {
  color: var(--primary);
}
.roadmap__status--stage1 .roadmap__dot {
  background: var(--primary);
}

.roadmap__status--stage2 {
  color: #1a6fd4;
}
.roadmap__status--stage2 .roadmap__dot {
  background: #1a6fd4;
}

.roadmap__status--stage3 {
  color: var(--text-secondary);
}
.roadmap__status--stage3 .roadmap__dot {
  background: var(--text-secondary);
  opacity: 0.5;
}

.roadmap__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.roadmap__list li {
  font-size: 14px;
  color: var(--text);
  padding-left: 16px;
  position: relative;
}

.roadmap__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
}

.roadmap__col:first-child .roadmap__list li::before {
  background: rgba(0, 87, 255, 0.2);
}
.roadmap__col:nth-child(2) .roadmap__list li::before {
  background: rgba(26, 111, 212, 0.2);
}
.roadmap__col:nth-child(3) .roadmap__list li::before {
  background: rgba(74, 106, 138, 0.15);
}

/* --- Product Preview --- */
.product-preview {
  background: var(--bg);
}

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

.preview-card{
  display: flex;
  flex-direction: column;
}

.preview-card__window {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
  background: var(--white);
  flex-grow: 2;
}

.preview-card__chrome {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--dark);
}

.preview-card__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
}

.preview-card__tab {
  margin-left: auto;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
}

.preview-card__screen {
  padding: 16px;
  min-height: 200px;
}

.preview-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}

.preview-card__text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Search mock */
.preview-card__search-mock {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  color: var(--text-secondary);
}

.preview-card__search-text {
  font-size: 14px;
  color: var(--text);
}

.preview-card__cursor {
  animation: blink 1s step-end infinite;
  color: var(--primary);
}

@keyframes blink {
  50% { opacity: 0; }
}

.preview-card__result-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 10px;
}

.preview-card__result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(212, 223, 234, 0.5);
  font-size: 13px;
}
.preview-card__result-row:last-child {
  border-bottom: none;
}

.preview-card__result-name {
  font-weight: 600;
  color: var(--dark);
}

.preview-card__result-mfr {
  color: var(--text-secondary);
}

/* Compare table mock */
.preview-card__table {
  width: 100%;
  font-size: 12px;
  border-collapse: collapse;
}
.preview-card__table th,
.preview-card__table td {
  padding: 7px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.preview-card__table th {
  font-weight: 600;
  color: var(--dark);
  background: var(--bg);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.preview-card__table td:first-child {
  color: var(--text-secondary);
  font-weight: 500;
}
.preview-card__table .hl {
  font-weight: 700;
  color: var(--primary);
}
.preview-card__table .hl-warn {
  font-weight: 700;
  color: #e67e22;
}

/* Analog mock */
.preview-card__analog-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.preview-card__analog-source {
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
}

.preview-card__analog-target {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.preview-card__analog-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.preview-card__analog-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.preview-card__analog-match {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: rgba(0, 87, 255, 0.08);
  color: var(--primary);
  font-size: 14px;
  font-weight: 800;
  border-radius: 50%;
  flex-shrink: 0;
}

.preview-card__analog-name {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
}

.preview-card__analog-mfr {
  font-size: 12px;
  color: var(--text-secondary);
}

/* --- Cards --- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  max-width: 960px;
  margin: 0 auto 40px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
}
.card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.card--selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 87, 255, 0.12);
}

.card__badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
  background: rgba(0, 87, 255, 0.08);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.card__manufacturer {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.card__specs {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.card__spec {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(212, 223, 234, 0.5);
}
.card__spec:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.card__spec-label {
  color: var(--text-secondary);
}

.card__spec-value {
  font-weight: 600;
  color: var(--text);
}

.card__actions {
  display: flex;
  gap: 8px;
}

.card--hidden {
  display: none;
}

/* --- Compare Block --- */
.compare-block {
  max-width: 960px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.compare-block__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
}

.compare-block__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 40px 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
}
.compare-block__empty svg {
  opacity: 0.35;
}
.compare-block__empty strong {
  color: var(--primary);
}

.compare-block__table-wrap {
  position: relative;
  overflow-x: auto;
  margin-bottom: 24px;
  display: none;
}
.compare-block__table-wrap--active {
  display: block;
}

.scroll-hint {
  display: none;
  position: sticky;
  left: 0;
  text-align: center;
  font-size: 12px;
  color: var(--text-secondary);
  background: linear-gradient(90deg, var(--bg) 0%, var(--bg) 45%, transparent 50%, var(--bg) 55%, var(--bg) 100%);
  padding: 6px 0;
  pointer-events: none;
  z-index: 2;
}

.compare-table {
  min-width: 400px;
}
.compare-table th,
.compare-table td {
  padding: 12px 16px;
  font-size: 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.compare-table th {
  font-weight: 600;
  color: var(--dark);
  background: var(--bg);
  position: sticky;
  left: 0;
}
.compare-table th:first-child,
.compare-table td:first-child {
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 180px;
  background: var(--bg);
  position: sticky;
  left: 0;
}
.compare-table td {
  color: var(--text);
}

.compare-block__actions {
  display: none;
  gap: 12px;
  flex-wrap: wrap;
}
.compare-block__actions--active {
  display: flex;
}

/* --- Section Common --- */
.section {
  padding: 80px 0;
}

.section__label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.section__title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

/* --- Why Section --- */
.why__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.why__problem,
.why__solution {
  padding: 32px;
  border-radius: var(--radius-lg);
}

.why__problem {
  background: rgba(220, 50, 50, 0.04);
  border: 1px solid rgba(220, 50, 50, 0.12);
}

.why__solution {
  background: rgba(0, 87, 255, 0.04);
  border: 1px solid rgba(0, 87, 255, 0.12);
}

.why__heading {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}
.why__heading--problem {
  color: #c0392b;
}
.why__heading--solution {
  color: var(--primary);
}

.why__text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.why__item {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}
.why__item:last-child {
  margin-bottom: 0;
}
.why__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
}

/* --- Features --- */
.features {
  background: var(--white);
}

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

.feature-card {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(0, 87, 255, 0.08);
  color: var(--primary);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.feature-card__text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- How It Works --- */
.how {
  background: var(--bg);
}

.how__steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.step {
  flex: 1;
  text-align: center;
  padding: 0 16px;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--white);
  font-size: 16px;
  font-weight: 800;
  border-radius: 50%;
  margin-bottom: 16px;
}

.step__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.step__text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step__connector {
  flex-shrink: 0;
  width: 40px;
  height: 2px;
  background: var(--border);
  margin-top: 24px;
}

/* --- Categories --- */
.categories {
  background: var(--white);
}

.categories__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 32px 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.category-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.category-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: rgba(0, 87, 255, 0.08);
  color: var(--primary);
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.category-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}

.category-card__count {
  font-size: 13px;
  color: var(--text-secondary);
}

/* --- Audience --- */
.audience {
  background: var(--bg);
}

.audience__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.audience-card {
  padding: 32px 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.audience-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.audience-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(0, 87, 255, 0.08);
  color: var(--primary);
  border-radius: 50%;
  margin: 0 auto 20px;
}

.audience-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.audience-card__text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Pre-CTA --- */
.pre-cta {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.pre-cta__inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.pre-cta__title {
  font-size: 24px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.pre-cta__text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 28px;
}

/* --- CTA --- */
.cta {
  background: var(--dark);
  padding: 80px 0;
}

.cta__inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta__text {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
  margin-bottom: 32px;
}

.cta__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
  background: var(--dark);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 64px 0 32px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 48px;
}

.logo--footer {
  margin-bottom: 12px;
}
.logo--footer .logo__mark {
  background: var(--primary);
}
.logo--footer .logo__text {
  color: var(--white);
}

.footer__tagline {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.5;
  max-width: 280px;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer__heading {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 16px;
}

.footer__link {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 10px;
  transition: color var(--transition);
}
.footer__link:hover {
  color: var(--white);
}

.footer__bottom {
  grid-column: 1 / -1;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__copy {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

/* --- Value Strip --- */
.value-strip {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 32px 0;
}

.value-strip__inner {
  display: flex;
  justify-content: center;
  gap: 64px;
  flex-wrap: wrap;
}

.value-strip__item {
  text-align: center;
}

.value-strip__number {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 8px;
}

.value-strip__label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* --- Nav CTA (mobile) --- */
.nav__cta {
  display: none;
}

/* --- Analog Modal --- */
.analog-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(6, 27, 58, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.analog-overlay--visible {
  opacity: 1;
}

.analog-modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 560px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px);
  transition: transform 0.2s ease;
}
.analog-overlay--visible .analog-modal {
  transform: translateY(0);
}

.analog-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.analog-modal__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
}

.analog-modal__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 50%;
  transition: background var(--transition);
}
.analog-modal__close:hover {
  background: var(--bg);
}

.analog-modal__subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.analog-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.analog-item:last-child {
  border-bottom: none;
}

.analog-item__info {
  flex: 1;
}

.analog-item__model {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
}

.analog-item__mfr {
  font-size: 13px;
  color: var(--text-secondary);
}

.analog-item__specs {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: right;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.5s ease forwards;
  opacity: 0;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .audience__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .preview__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .preview__grid .preview-card:last-child {
    grid-column: 1 / -1;
    max-width: 480px;
    justify-self: center;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 56px;
  }

  .nav {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 0;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .nav--open {
    display: flex;
  }
  .nav__link {
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--border);
  }
  .nav__link:last-child {
    border-bottom: none;
  }
  .nav__cta {
    display: block;
    margin-top: 8px;
    text-align: center;
  }

  .header__cta {
    display: none;
  }

  .burger {
    display: flex;
  }

  .hero__title {
    font-size: 28px;
  }

  .search-block__filters {
    flex-direction: column;
  }

  .filter-group {
    min-width: 100%;
  }

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

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

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

  .how__steps {
    flex-direction: column;
    align-items: stretch;
  }

  .step__connector {
    width: 2px;
    height: 24px;
    margin: 0 auto;
  }

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

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

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

  .section {
    padding: 56px 0;
  }

  .value-strip__inner {
    gap: 32px;
  }

  .value-strip__number {
    font-size: 26px;
  }

  .preview__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .approach__inner {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }

  .approach__col {
    align-items: center;
    width: 100%;
    max-width: 280px;
  }

  .approach__label {
    text-align: center;
  }

  .approach__flow {
    flex-direction: column;
    align-items: center;
    gap: 6px;
  }

  .approach__step-item {
    width: 100%;
    text-align: center;

    gap: 6px;
    padding: 12px 14px;
  }

  .approach__icon {
    display: block;
  }

  .approach__col--old .approach__icon {
    color: var(--text-secondary);
    opacity: 0.6;
  }

  .approach__col--new .approach__icon {
    color: var(--primary);
  }

  .approach__arrow {
    font-size: 16px;
  }

  .approach__vs {
    text-align: center;
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .approach__vs::before,
  .approach__vs::after {
    content: '';
    width: 40px;
    height: 1px;
    background: var(--border);
  }

  .approach__benefit {
    max-width: 280px;
    width: 100%;
  }

  .sys-metrics {
    gap: 12px;
  }

  .sys-metrics__divider {
    display: none;
  }

  .system-window__footer {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }

  .manufacturers__grid {
    gap: 16px 28px;
  }

  .mfr-logo {
    font-size: 16px;
  }

  .catalog-metrics__grid {
    gap: 12px 24px;
    padding: 16px;
  }

  .catalog-metrics__num {
    font-size: 22px;
  }

  .compare-params__grid {
    grid-template-columns: 1fr;
  }

  .use-cases__grid {
    grid-template-columns: 1fr 1fr;
  }

  .manual-vs__grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .categories__grid {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }
  .hero__actions .btn {
    width: 100%;
  }

  .cta__actions {
    flex-direction: column;
    width: 100%;
  }
  .cta__actions .btn {
    width: 100%;
  }

  .compare-block__actions {
    flex-direction: column;
  }
  .compare-block__actions .btn {
    width: 100%;
  }

  .approach__flow {
    flex-direction: column;
    align-items: center;
    gap: 6px;
  }

  .approach__col {
    max-width: 240px;
  }

  .approach__step-item {
    font-size: 12px;
    padding: 5px 12px;
  }

  .approach__benefit {
    max-width: 240px;
    padding: 12px 14px;
    gap: 10px;
  }

  .approach__benefit-title {
    font-size: 13px;
  }

  .approach__benefit-desc {
    font-size: 12px;
  }

  .approach__arrow {
    font-size: 14px;
  }

  .sys-metrics {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
    padding-left: 20px;
  }

  .preview-card__screen {
    min-height: 180px;
  }

  .manufacturers__grid {
    gap: 12px 20px;
  }

  .mfr-logo {
    font-size: 14px;
  }

  .catalog-metrics__grid {
    gap: 10px 16px;
    padding: 14px;
    justify-content: flex-start;
  }

  .catalog-metrics__num {
    font-size: 18px;
  }

  .catalog-metrics__desc {
    font-size: 13px;
  }

  .use-cases__grid {
    grid-template-columns: 1fr;
  }

  .scenario-card__big {
    font-size: 18px;
  }
}