/* ==========================================================================
   CSS Variables (Design Tokens)
   ========================================================================== */
:root {
  --c-navy: #102542;
  --c-red: #CC0000;
  --c-blue: #154FA8;
  --c-white: #ffffff;
  --c-gray-50: #f9fafb;
  --c-gray-100: #f3f4f6;
  --c-gray-200: #e5e7eb;

  --font-primary: 'Inter', system-ui, -apple-system, sans-serif;

  --container-max-width: 1280px;
  --container-padding: 1.5rem;

  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: var(--font-primary);
  scroll-behavior: smooth;
  font-size: 16px;
  color: var(--c-navy);
  background-color: var(--c-white);
  -webkit-font-smoothing: antialiased;
}

ul, ol {
  list-style: none;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ==========================================================================
   Typography
   ========================================================================== */
.title-section {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.text-lead {
  font-size: 1.125rem;
  font-weight: 500;
  opacity: 0.8;
  line-height: 1.6;
}

/* ==========================================================================
   Layout & Utilities
   ========================================================================== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: 3rem 0;
}

@media (min-width: 768px) {
  .section {
    padding: 5rem 0;
  }
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.75rem;
  z-index: 10000;
  padding: 0.75rem 1.25rem;
  background: var(--c-navy);
  color: var(--c-white);
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  border-radius: 2px;
  transition: var(--transition-normal);
}

.skip-link:focus {
  left: 0.75rem;
  outline: 3px solid var(--c-red);
  outline-offset: 2px;
}

/* ==========================================================================
   Components
   ========================================================================== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9375rem;
  transition: var(--transition-normal);
}

.btn--primary {
  background-color: var(--c-red);
  color: var(--c-white);
  box-shadow: 0 10px 20px -10px rgba(204, 0, 0, 0.4);
}

.btn--primary:hover,
.btn--primary:focus {
  background-color: #a30000;
  transform: translateY(-2px);
}

.btn--outline {
  border: 2px solid var(--c-white);
  color: var(--c-white);
}

.btn--outline:hover,
.btn--outline:focus {
  background-color: var(--c-white);
  color: var(--c-navy);
  transform: translateY(-2px);
}

.btn--outline-navy {
  border: 2px solid var(--c-navy);
  color: var(--c-navy);
}

.btn--outline-navy:hover,
.btn--outline-navy:focus {
  background-color: var(--c-navy);
  color: var(--c-white);
  transform: translateY(-2px);
}

.btn__icon {
  margin-right: 0.75rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--c-white);
  border-bottom: 1px solid var(--c-gray-100);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.05em;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: inherit;
}

.logo__image {
  height: 2.5rem;
  width: auto;
  max-width: 8rem;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.logo__text {
  line-height: 1.1;
  color: var(--c-navy);
}

.logo:hover {
  opacity: 0.8;
}

.logo__icon {
  color: var(--c-navy);
}

.nav__list {
  display: none;
}

@media (min-width: 1024px) {
  .nav {
    margin-inline: 1.5rem;
  }

  .nav__list {
    display: flex;
    gap: 1.375rem;
    justify-content: center;
  }
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: var(--transition-normal);
}

.nav__link:hover {
  color: var(--c-red);
}

.header__contacts {
  display: none;
}

@media (min-width: 640px) {
  .header__contacts {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
  }
}

.header__phone {
  font-size: 1.125rem;
  font-weight: 900;
  transition: var(--transition-normal);
}

.header__phone:hover {
  color: var(--c-red);
}

.header__subtitle {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.6;
  margin-top: 0.25rem;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 700px;
  display: flex;
  align-items: center;
  background-color: var(--c-navy);
  color: var(--c-white);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-bg-pakstor.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, rgba(16, 37, 66, 0.95), rgba(16, 24, 32, 0.9));
  z-index: 1;
}

.hero__inner {
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 48rem;
}

.hero__title {
  font-size: clamp(2.25rem, 8vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: -0.05em;
  margin-bottom: 1.5rem;
}

.hero__title-accent {
  border-bottom: 4px solid var(--c-red);
  padding-bottom: 0.25rem;
  display: inline-block;
}

.hero__desc {
  font-size: 1.25rem;
  font-weight: 500;
  opacity: 0.9;
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 40rem;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .hero__actions {
    flex-direction: row;
  }
}

.hero__stats {
  display: none;
  position: absolute;
  top: 4rem;
  right: 0;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 1024px) {
  .hero__stats {
    display: flex;
  }
}

.stat-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 2rem;
  text-align: center;
  width: 12rem;
  transition: var(--transition-normal);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.stat-card:hover {
  transform: scale(1.05);
  background: rgba(255, 255, 255, 0.15);
}

.stat-card__num {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-card__text {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.8;
}

/* Advantages Section */
.advantages {
  background: linear-gradient(to bottom right, var(--c-gray-50), var(--c-white));
}

.advantages__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}

@media (min-width: 640px) {
  .advantages__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .advantages__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.adv-card {
  background-color: var(--c-white);
  padding: 2rem;
  border: 2px solid var(--c-gray-100);
  position: relative;
  transition: var(--transition-normal);
}

.adv-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--c-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.adv-card:hover {
  border-color: var(--c-navy);
  transform: translateY(-0.5rem);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.adv-card:hover::before {
  transform: scaleX(1);
}

.adv-card__icon-wrapper {
  position: relative;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.adv-card__icon {
  width: 4rem;
  height: 4rem;
  background-color: var(--c-navy);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: transform 0.3s ease;
}

.adv-card:hover .adv-card__icon {
  transform: rotate(6deg) scale(1.1);
}

.adv-card__num {
  position: absolute;
  top: -0.75rem;
  right: -0.75rem;
  width: 2rem;
  height: 2rem;
  background-color: var(--c-red);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 900;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.adv-card__title {
  font-size: 1.25rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  transition: color 0.3s ease;
}

.adv-card:hover .adv-card__title {
  color: var(--c-red);
}

.adv-card__text {
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0.7;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.adv-card__feature {
  border-top: 2px solid var(--c-gray-100);
  padding-top: 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
  display: flex;
  align-items: center;
}

.adv-card__feature i {
  color: var(--c-red);
  margin-right: 0.5rem;
  font-size: 1rem;
}

/* Banner Stats */
.banner-stats {
  margin-top: 4rem;
  background-color: var(--c-navy);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  color: var(--c-white);
}

@media (min-width: 640px) {
  .banner-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .banner-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.banner-stat__item {
  text-align: center;
}

@media (min-width: 768px) {
  .banner-stat__item:not(:last-child) {
    border-right: 2px solid rgba(255, 255, 255, 0.1);
  }
}

.banner-stat__val {
  font-size: clamp(2.5rem, 4vw, 3rem);
  font-weight: 900;
  margin-bottom: 0.5rem;
}

.banner-stat__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
}

/* Catalog Table Section */
.catalog {
  background-color: var(--c-gray-50);
}

.catalog-section {
  transition: opacity 0.4s ease;
  margin-bottom: 3rem;
}

.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--c-white);
  color: var(--c-navy);
  border: 2px solid var(--c-gray-200);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.875rem;
  transition: var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--c-navy);
  color: var(--c-white);
  border-color: var(--c-navy);
}

.table-wrapper {
  overflow-x: auto;
  border: 2px solid var(--c-navy);
  background-color: var(--c-white);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
  text-align: left;
}

.table th {
  background-color: var(--c-navy);
  color: var(--c-white);
  padding: 1.25rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--c-navy);
}

.table td {
  padding: 1.25rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-bottom: 1px solid var(--c-gray-200);
  transition: var(--transition-normal);
}

.table tr:hover td {
  background-color: var(--c-gray-50);
}

.table__name-main {
  font-weight: 700;
  font-size: 1rem;
}

.table__name-sub {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  opacity: 0.6;
  margin-top: 0.25rem;
}

.table__meta {
  font-family: inherit;
  font-weight: 800;
  color: var(--c-navy);
  font-size: 1.125rem;
}

/* Mobile Table Cards */
@media (max-width: 767px) {
  .table-wrapper {
    border: none;
    background-color: transparent;
    box-shadow: none;
    overflow-x: visible;
  }
  
  .table, .table tbody, .table tr, .table td {
    display: block;
    width: 100%;
  }
  
  .table {
    min-width: unset;
  }
  
  .table thead {
    display: none;
  }
  
  .table tr {
    margin-bottom: 1.5rem;
    border: 2px solid var(--c-gray-200);
    background-color: var(--c-white);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  }
  
  .table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: right;
    border-bottom: 1px solid var(--c-gray-100);
    padding: 1rem;
  }
  
  .table td::before {
    content: attr(data-label);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--c-gray-500);
    text-align: left;
    margin-right: 1rem;
    flex-shrink: 0;
  }
  
  .table td:last-child {
    border-bottom: none;
    justify-content: center;
    background-color: var(--c-gray-50);
  }
  
  .table td:last-child::before {
    display: none;
  }
  
  .table__name-main {
    text-align: right;
  }
  
  .table__name-sub {
    text-align: right;
    margin-left: auto;
  }
}

.btn--small {
  padding: 0.5rem 1rem;
  font-size: 0.6875rem;
  border: 1px solid var(--c-navy);
  color: var(--c-navy);
  font-weight: 700;
  text-transform: uppercase;
  transition: var(--transition-normal);
}

.btn--small:hover {
  background-color: var(--c-navy);
  color: var(--c-white);
}

/* Production */
.production {
  position: relative;
  border-top: 2px solid var(--c-gray-100);
}

.production__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .production__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.prod-list {
  margin: 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.prod-list__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.prod-list__icon {
  width: 1.5rem;
  height: 1.5rem;
  background-color: var(--c-red);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.prod-list__text {
  font-size: 0.9375rem;
  font-weight: 500;
  opacity: 0.8;
}

.prod-media {
  position: relative;
}

.prod-media__wrapper {
  aspect-ratio: 4/3;
  background-image: url('../images/production-hall.jpg');
  background-size: cover;
  background-position: center;
  border: 4px solid var(--c-navy);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.prod-media__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(16, 37, 66, 0.4);
  transition: var(--transition-normal);
}

.prod-media__wrapper:hover .prod-media__overlay {
  background-color: rgba(16, 37, 66, 0.2);
}

.prod-media__play {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.play-btn {
  width: 5rem;
  height: 5rem;
  background-color: rgba(204, 0, 0, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-white);
  font-size: 1.5rem;
  padding-left: 0.25rem;
  box-shadow: 0 0 0 15px rgba(204, 0, 0, 0.2);
  transition: var(--transition-normal);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(204, 0, 0, 0.4); }
  70% { box-shadow: 0 0 0 20px rgba(204, 0, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(204, 0, 0, 0); }
}

.prod-media__wrapper:hover .play-btn {
  transform: scale(1.1);
  background-color: var(--c-red);
}

.play-text {
  color: var(--c-white);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.prod-media__badge {
  position: absolute;
  bottom: -2rem;
  right: -2rem;
  width: 11rem;
  height: 11rem;
  background-color: var(--c-red);
  border: 4px solid var(--c-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--c-white);
  transform: rotate(3deg);
  transition: var(--transition-normal);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.prod-media:hover .prod-media__badge {
  transform: rotate(0);
}

.badge-num {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
}

.badge-text {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
}

/* Solutions */
.solutions {
  background-color: var(--c-gray-50);
}

.solutions__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .solutions__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.sol-card {
  background-color: var(--c-white);
  padding: 2rem;
  border-top: 4px solid var(--c-red);
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
}

.sol-card:hover {
  transform: translateY(-0.25rem);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.sol-card__title {
  font-size: 1.375rem;
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.sol-card__desc {
  font-size: 0.9375rem;
  font-weight: 500;
  opacity: 0.7;
  line-height: 1.6;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.sol-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.sol-list__item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0.8;
}

.sol-list__item i {
  color: var(--c-red);
  margin-top: 0.25rem;
}

.btn--ghost {
  display: inline-flex;
  align-items: center;
  background-color: var(--c-gray-50);
  border: 1px solid var(--c-gray-100);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--c-navy);
  transition: var(--transition-normal);
}

.btn--ghost i {
  margin-left: auto;
  transition: transform 0.3s ease;
}

.sol-card:hover .btn--ghost {
  background-color: var(--c-red);
  color: var(--c-white);
  border-color: var(--c-red);
}

.sol-card:hover .btn--ghost i {
  transform: translateX(4px);
}

/* Footer */
.footer {
  background-color: var(--c-navy);
  color: var(--c-white);
  border-top: 4px solid var(--c-red);
  padding: 4rem 0 2rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media (min-width: 640px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer__brand {
  display: flex;
  flex-direction: column;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.footer__logo-img {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}

.footer__logo-text {
  line-height: 1.1;
}

.footer__logo-icon {
  width: 3rem;
  height: 3rem;
  background-color: var(--c-white);
  color: var(--c-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.footer__desc {
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0.7;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.socials {
  display: flex;
  gap: 0.75rem;
}

.social__link {
  width: 2.5rem;
  height: 2.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  border-radius: 2px;
  transition: var(--transition-normal);
}

.social__link:hover {
  background-color: var(--c-white);
  color: var(--c-navy);
}

.footer__col-title {
  font-size: 0.8125rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.5;
  margin-bottom: 1.5rem;
}

.footer-nav__list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  opacity: 0.9;
  transition: color 0.3s ease;
}

.footer-nav__link:hover {
  color: var(--c-red);
}

.footer-contact__list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-contact__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.footer-contact__item i {
  color: var(--c-red);
  margin-top: 0.25rem;
}

.footer-contact__phone {
  font-size: 1.125rem;
  font-weight: 900;
  display: block;
  margin-bottom: 0.25rem;
}

.footer-contact__phone:hover {
  color: var(--c-red);
}

.footer-contact__note {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.5;
}

.footer-contact__text {
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0.8;
  line-height: 1.5;
}
.footer-contact__text:hover {
  color: var(--c-red);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer__copy {
  font-size: 0.8125rem;
  font-weight: 500;
  opacity: 0.5;
  line-height: 1.6;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer__legal a {
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.footer__legal a:hover {
  opacity: 1;
  color: var(--c-red);
}

/* ==========================================================================
   Dealers Page Layout
   ========================================================================== */
.dealers-hero {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  background-color: var(--c-navy);
  color: var(--c-white);
}

.dealers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .dealers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .dealers-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.req-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}

@media (min-width: 1024px) {
  .req-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--c-navy);
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--c-gray-200);
  background-color: var(--c-gray-50);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition-normal);
}

.form-input:focus {
  outline: none;
  border-color: var(--c-navy);
  background-color: var(--c-white);
}

.form-input.error {
  border-color: var(--c-red);
}

.form-input.success {
  border-color: #10B981;
}

.form-msg {
  display: none;
  font-size: 0.75rem;
  margin-top: 0.5rem;
  font-weight: 700;
}

.form-msg.error {
  display: block;
  color: var(--c-red);
}

/* Form success overlay */
.form-success-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background-color: var(--c-white);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  z-index: 10;
}

.form-success-overlay.active {
  display: flex !important;
}

.icon-success {
  font-size: 3rem;
  color: #10B981;
  margin-bottom: 1rem;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(16, 37, 66, 0.8);
  backdrop-filter: blur(4px);
}

.modal__content {
  position: relative;
  background-color: var(--c-white);
  padding: 3rem;
  border-radius: 4px;
  width: 100%;
  max-width: 450px;
  z-index: 10;
  transform: translateY(2rem);
  transition: transform 0.3s ease;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal.active .modal__content {
  transform: translateY(0);
}

@media (max-width: 639px) {
  .modal__content {
    padding: 1.75rem 1.125rem;
    max-height: min(92vh, 100dvh - 2rem);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}

.modal__close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2rem;
  color: var(--c-gray-500);
  line-height: 1;
  transition: color 0.2s ease;
}

.modal__close:hover {
  color: var(--c-red);
}

/* Lightbox: сертификаты (просмотр в увеличении + листание) */
.cert-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1002;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Запас по горизонтали, чтобы стрелки снаружи панели не упирались в край экрана */
  padding: clamp(0.75rem, 3vw, 2rem) clamp(2.25rem, 5vw, 3.25rem);
  box-sizing: border-box;
}

.cert-lightbox[hidden] {
  display: none !important;
}

.cert-lightbox__backdrop {
  position: absolute;
  inset: 0;
  /* Нейтральный полупрозрачный слой + лёгкое «матовое» стекло — без синего тона */
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(14px) saturate(1.02);
  -webkit-backdrop-filter: blur(14px) saturate(1.02);
  cursor: pointer;
}

.cert-lightbox__panel {
  position: relative;
  z-index: 1;
  /* Узкий вертикальный документ — панель подстраивается под ширину картинки, без широких «полей» */
  width: fit-content;
  width: -moz-fit-content;
  max-width: min(1120px, 92vw);
  min-width: 0;
  max-height: min(92vh, 100dvh - 2rem);
  background: var(--c-white);
  border-radius: 4px;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.06),
    0 24px 48px -12px rgba(0, 0, 0, 0.18);
  padding: 0.875rem 1rem 1.15rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: visible;
}

.cert-lightbox__close {
  position: absolute;
  top: 0.35rem;
  right: 0.5rem;
  z-index: 3;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  font-size: 2rem;
  line-height: 1;
  color: var(--c-gray-500);
  cursor: pointer;
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.cert-lightbox__close:hover {
  color: var(--c-navy);
}

.cert-lightbox__close:focus-visible {
  outline: 2px solid var(--c-navy);
  outline-offset: 2px;
}

.cert-lightbox__stage {
  flex: 0 1 auto;
  width: auto;
  max-width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  max-height: min(78vh, 820px);
  margin: 0.35rem 0 0.45rem;
}

.cert-lightbox__img {
  max-width: 100%;
  max-height: min(78vh, 820px);
  width: auto;
  height: auto;
  object-fit: contain;
  vertical-align: middle;
}

.cert-lightbox__caption {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--c-navy);
  text-align: center;
  margin: 0 0 0.35rem;
  line-height: 1.35;
  max-width: 100%;
  padding: 0 0.25rem;
}

.cert-lightbox__external {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-navy);
  text-decoration: underline;
  text-underline-offset: 3px;
  margin-top: 0.15rem;
}

.cert-lightbox__external:hover {
  color: var(--c-red);
}

.cert-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--c-navy);
  background: var(--c-white);
  color: var(--c-navy);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, color 0.2s ease;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.cert-lightbox__nav:hover {
  background: var(--c-navy);
  color: var(--c-white);
}

.cert-lightbox__nav:focus-visible {
  outline: 2px solid var(--c-navy);
  outline-offset: 2px;
}

/* Стрелки снаружи белой панели — не расширяют блок по ширине */
@media (min-width: 641px) {
  .cert-lightbox__nav--prev {
    left: 0;
    transform: translate(calc(-100% - 0.65rem), -50%);
  }

  .cert-lightbox__nav--next {
    right: 0;
    transform: translate(calc(100% + 0.65rem), -50%);
  }
}

@media (max-width: 640px) {
  .cert-lightbox__panel {
    max-width: min(1120px, calc(100vw - 1.5rem));
    padding: 2.25rem 2.6rem 1rem;
    max-height: min(94vh, 100dvh - 1rem);
  }

  .cert-lightbox__stage,
  .cert-lightbox__img {
    max-height: min(72vh, 720px);
  }

  .cert-lightbox__nav {
    width: 40px;
    height: 40px;
  }

  .cert-lightbox__nav--prev {
    left: 0.3rem;
    transform: translateY(-50%);
  }

  .cert-lightbox__nav--next {
    right: 0.3rem;
    transform: translateY(-50%);
  }
}

/* ==========================================================================
   Homepage Missing Sections
   ========================================================================== */

/* Logistics */
.logistics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .logistics-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.logistics-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.logistics-item__icon {
  width: 3rem;
  height: 3rem;
  background-color: var(--c-white);
  color: var(--c-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-right: 1rem;
}

/* Quality Control */
.qc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .qc-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .qc-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.qc-card {
  background-color: var(--c-gray-50);
  padding: 1.5rem;
  border-left: 4px solid var(--c-red);
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  .qc-card {
    padding: 2rem;
  }
}

.qc-card__header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.qc-card__num {
  width: 3rem;
  height: 3rem;
  background-color: var(--c-navy);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 900;
  margin-right: 1rem;
}

/* Certifications */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .cert-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.cert-card {
  background-color: var(--c-white);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--c-gray-100);
  transition: var(--transition-normal);
  text-align: center;
}

.cert-card:hover {
  border-color: var(--c-navy);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Карусель сертификатов: только горизонтальный скролл, без вертикальной полосы */
.cert-carousel {
  position: relative;
  margin-bottom: 4rem;
  padding: 0.5rem 0 0;
}

.cert-carousel__viewport {
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--c-gray-200) transparent;
  margin: 0 3.25rem;
  overscroll-behavior-x: contain;
}

.cert-carousel__viewport::-webkit-scrollbar {
  height: 6px;
}

.cert-carousel__viewport::-webkit-scrollbar-thumb {
  background: var(--c-gray-200);
  border-radius: 3px;
}

.cert-carousel__track {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 0.5rem 0 1.25rem;
}

.cert-carousel__slide {
  flex: 0 0 min(268px, 82vw);
  max-width: 300px;
  scroll-snap-align: start;
  text-decoration: none;
  color: inherit;
  display: block;
  min-height: 0;
}

button.cert-carousel__slide--lightbox {
  -webkit-appearance: none;
  appearance: none;
  border: none;
  background: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  font: inherit;
  color: inherit;
  text-align: left;
  width: 100%;
}

button.cert-carousel__slide--lightbox:focus-visible {
  outline: 2px solid var(--c-navy);
  outline-offset: 3px;
  border-radius: 2px;
}

.cert-carousel .cert-card--carousel {
  height: auto;
  min-height: 0;
  margin: 0;
  padding: 1.25rem 1.25rem 1.5rem;
  border: 2px solid var(--c-gray-100);
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(16, 37, 66, 0.06);
  overflow-x: hidden;
  overflow-y: hidden;
}

.cert-carousel .cert-card--carousel:hover {
  border-color: var(--c-navy);
  box-shadow: 0 10px 24px -8px rgba(16, 37, 66, 0.15);
}

/* Рамка под документ: весь скан виден, без обрезки (letterbox) */
.cert-carousel .cert-card__media {
  width: 100%;
  aspect-ratio: 4 / 5;
  max-height: 320px;
  background: linear-gradient(180deg, var(--c-gray-50) 0%, var(--c-white) 100%);
  border: 1px solid var(--c-gray-100);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 1rem;
}

.cert-carousel .cert-card__media .cert-card__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  margin: 0;
  border-radius: 0;
}

.cert-carousel .cert-card__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 120px;
}

.cert-carousel .cert-card__placeholder-icon {
  font-size: 2.75rem;
  margin: 0;
  opacity: 0.75;
}

.cert-carousel .cert-card__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  display: block;
  line-height: 1.35;
  color: var(--c-navy);
}

.cert-carousel__btn {
  position: absolute;
  top: 42%;
  transform: translateY(-50%);
  z-index: 2;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 2px solid var(--c-navy);
  background: var(--c-white);
  color: var(--c-navy);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  box-shadow: 0 4px 14px rgba(16, 37, 66, 0.12);
}

.cert-carousel__btn:hover {
  background: var(--c-navy);
  color: var(--c-white);
}

.cert-carousel__btn:focus-visible {
  outline: 2px solid var(--c-navy);
  outline-offset: 2px;
}

.cert-carousel__btn--prev {
  left: 0;
}

.cert-carousel__btn--next {
  right: 0;
}

@media (min-width: 768px) {
  .cert-carousel .cert-card__media {
    max-height: 340px;
  }

  .cert-carousel__slide {
    flex: 0 0 280px;
  }
}

@media (max-width: 600px) {
  .cert-carousel__viewport {
    margin: 0 2.85rem;
  }

  .cert-carousel__btn {
    width: 40px;
    height: 40px;
  }
}

.prod-media__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.prod-media__embed-mount {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: #0f172a;
}

.prod-media__embed-mount iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.prod-media__wrapper.is-playing .prod-media__overlay,
.prod-media__wrapper.is-playing .prod-media__play {
  opacity: 0;
  pointer-events: none;
}

.prod-media__wrapper.is-playing .prod-media__video,
.prod-media__wrapper.is-playing .prod-media__embed-mount {
  z-index: 2;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: stretch;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  display: flex;
  flex-direction: column;
  background-color: var(--c-white);
  border: 2px solid var(--c-gray-100);
  padding: 2rem;
  transition: var(--transition-normal);
}

.pricing-card--featured {
  background-color: var(--c-navy);
  color: var(--c-white);
  border-color: var(--c-navy);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 2;
}

@media (min-width: 768px) {
  .pricing-card--featured {
    transform: translateY(-1.5rem);
  }
}

.pricing-card:hover {
  border-color: var(--c-navy);
}

.pricing-card--featured:hover {
  border-color: var(--c-navy);
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.faq-item {
  border: 2px solid var(--c-gray-100);
  transition: var(--transition-normal);
}

.faq-item:hover {
  border-color: var(--c-navy);
}

.faq-item__header {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--c-navy);
  text-transform: uppercase;
}

.faq-item__body {
  padding: 0 1.5rem 1.5rem;
  display: none;
  color: var(--c-gray-500);
  line-height: 1.6;
}

.faq-item.active .faq-item__body {
  display: block;
}

.faq-item.active .faq-item__header i {
  transform: rotate(180deg);
}

/* ==========================================================================
   Javascript Utilities & Mobile Menu
   ========================================================================== */
.hidden {
  display: none !important;
}

.header__mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
  z-index: 100;
}

.header__mobile-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--c-navy);
  border-radius: 3px;
  transition: all 0.3s ease-in-out;
}

/* Mobile Menu Logic */
@media (max-width: 1023px) {
  .header__mobile-toggle {
    display: flex;
  }
  
  .header__mobile-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  .header__mobile-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .header__mobile-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .nav {
    position: fixed;
    top: 5rem; /* Header height */
    left: -100%;
    width: 100%;
    height: calc(100vh - 5rem);
    background-color: var(--c-white);
    transition: left 0.3s ease-in-out;
    padding: 2rem;
    overflow-y: auto;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  }

  .nav.nav--active {
    left: 0;
  }

  .nav__list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
  }

  .nav__link {
    font-size: 1.25rem;
  }
}

/* Body Scroll Lock */
body.no-scroll {
  overflow: hidden;
}

/* ==========================================================================
   Calculator Page
   ========================================================================== */

/* Hero */
.calc-hero {
  position: relative;
  background: linear-gradient(135deg, var(--c-navy) 0%, #0a1a2e 100%);
  color: var(--c-white);
  padding: 3rem 0 4rem;
  overflow: hidden;
}

.calc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(204, 0, 0, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(21, 79, 168, 0.25) 0%, transparent 45%);
  z-index: 0;
}

.calc-hero__inner {
  position: relative;
  z-index: 2;
}

.calc-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .calc-hero__grid {
    grid-template-columns: 1.6fr 1fr;
  }
}

.calc-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(204, 0, 0, 0.2);
  border: 1px solid rgba(204, 0, 0, 0.4);
  color: var(--c-white);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.calc-hero__badge i {
  color: #ff6b6b;
}

.calc-hero__title {
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 900;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.calc-hero__title-accent {
  display: inline-block;
  border-bottom: 4px solid var(--c-red);
  padding-bottom: 0.25rem;
}

.calc-hero__desc {
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.6;
  opacity: 0.85;
  max-width: 48rem;
  margin-bottom: 2rem;
}

.calc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.calc-hero__meta-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.calc-hero__meta-item i {
  color: var(--c-red);
  font-size: 1rem;
}

.calc-hero__visual {
  display: none;
  justify-content: center;
  align-items: center;
}

@media (min-width: 768px) and (max-width: 1023px) {
  .calc-hero__grid {
    grid-template-columns: 1.2fr 0.85fr;
    gap: 2rem;
    align-items: center;
  }

  .calc-hero__visual {
    display: flex;
  }

  .calc-hero__badge-big {
    width: 13rem;
    height: 13rem;
  }

  .calc-hero__badge-num {
    font-size: 3.5rem;
  }

  .calc-hero__badge-label {
    font-size: 1rem;
  }
}

@media (min-width: 1024px) {
  .calc-hero__visual {
    display: flex;
  }
}

.calc-hero__badge-big {
  width: 16rem;
  height: 16rem;
  background: linear-gradient(135deg, var(--c-red) 0%, #9a0000 100%);
  border: 4px solid var(--c-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: rotate(-4deg);
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.4), 0 0 0 12px rgba(204,0,0,0.15);
  transition: transform 0.6s cubic-bezier(0.4,0,0.2,1);
  color: var(--c-white);
}

.calc-hero__badge-big:hover {
  transform: rotate(0);
}

.calc-hero__badge-num {
  font-size: 5rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.05em;
}

.calc-hero__badge-label {
  font-size: 1.125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
  opacity: 0.9;
}

/* Calculator section */
.calc-section {
  background-color: var(--c-gray-50);
  margin-top: -2rem;
  position: relative;
  z-index: 3;
}

/* Calculator widget */
.calc-widget {
  background-color: var(--c-white);
  border: 2px solid var(--c-gray-200);
  box-shadow: 0 25px 50px -12px rgba(16, 37, 66, 0.25);
  position: relative;
  max-width: 100%;
  min-width: 0;
}

.calc-widget::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-red) 0%, var(--c-navy) 100%);
}

/* Tabs */
.calc-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 2px solid var(--c-gray-100);
}

.calc-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-navy);
  opacity: 0.45;
  background: transparent;
  position: relative;
  transition: var(--transition-normal);
  cursor: pointer;
}

@media (min-width: 640px) {
  .calc-tab {
    font-size: 1rem;
    padding: 1.75rem 1rem;
  }
}

.calc-tab i {
  font-size: 1.25rem;
}

.calc-tab:hover {
  opacity: 0.75;
}

.calc-tab.active {
  opacity: 1;
  color: var(--c-navy);
}

.calc-tab.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--c-red);
}

/* Body */
.calc-body {
  padding: 1.5rem;
}

@media (min-width: 768px) {
  .calc-body {
    padding: 2.5rem;
  }
}

.calc-field {
  margin-bottom: 1.75rem;
}

.calc-label {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-navy);
  margin-bottom: 0.875rem;
}

.calc-label-note {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  opacity: 0.55;
  color: var(--c-navy);
}

/* Material tabs */
.calc-material-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

@media (max-width: 639px) {
  .calc-material-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 0.5rem;
    padding-bottom: 0.35rem;
    margin-left: -0.125rem;
    margin-right: -0.125rem;
    padding-left: 0.125rem;
    padding-right: 0.125rem;
    scrollbar-width: thin;
  }

  .calc-material-tab {
    flex-shrink: 0;
  }
}

.calc-material-tab {
  padding: 0.625rem 1.125rem;
  background-color: var(--c-white);
  border: 2px solid var(--c-gray-200);
  color: var(--c-navy);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: var(--transition-normal);
  cursor: pointer;
}

.calc-material-tab:hover {
  border-color: var(--c-navy);
}

.calc-material-tab.active {
  background-color: var(--c-navy);
  border-color: var(--c-navy);
  color: var(--c-white);
}

/* Presets */
.calc-presets {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.625rem;
}

@media (max-width: 479px) {
  .calc-presets {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .calc-preset-btn {
    min-width: 0;
    padding: 0.75rem 0.75rem;
  }
}

.calc-preset-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  padding: 0.875rem 1rem;
  background-color: var(--c-gray-50);
  border: 2px solid var(--c-gray-100);
  text-align: left;
  transition: var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.calc-preset-btn::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--c-red);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.3s ease;
}

.calc-preset-btn:hover {
  border-color: var(--c-navy);
  background-color: var(--c-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 15px -5px rgba(16, 37, 66, 0.15);
}

.calc-preset-btn:hover::before,
.calc-preset-btn.active::before {
  transform: scaleY(1);
  transform-origin: top;
}

.calc-preset-btn.active {
  border-color: var(--c-navy);
  background-color: var(--c-navy);
  color: var(--c-white);
}

.calc-preset-btn__size {
  font-size: 0.9375rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.calc-preset-btn__label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
}

.calc-preset-btn.active .calc-preset-btn__label {
  opacity: 0.8;
}

/* Dimensions */
.calc-dims {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  align-items: end;
}

@media (min-width: 640px) {
  .calc-dims {
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 0.625rem;
  }
}

.calc-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.calc-input-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.55;
  color: var(--c-navy);
}

.calc-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.calc-input {
  width: 100%;
  padding: 0.875rem 3rem 0.875rem 1rem;
  border: 2px solid var(--c-gray-200);
  background-color: var(--c-gray-50);
  font-family: inherit;
  font-size: 1.0625rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--c-navy);
  transition: var(--transition-normal);
  -moz-appearance: textfield;
}

.calc-input::-webkit-outer-spin-button,
.calc-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.calc-input:focus {
  outline: none;
  border-color: var(--c-navy);
  background-color: var(--c-white);
  box-shadow: 0 0 0 4px rgba(16, 37, 66, 0.08);
}

.calc-input-suffix {
  position: absolute;
  right: 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--c-navy);
  opacity: 0.5;
  pointer-events: none;
}

.calc-input-sep {
  display: none;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--c-gray-200);
  padding-bottom: 0.75rem;
  text-align: center;
}

@media (min-width: 640px) {
  .calc-input-sep {
    display: block;
  }
}

.calc-input-wrap--big .calc-input--big {
  padding: 1.25rem 4rem 1.25rem 1.25rem;
  font-size: 1.5rem;
  font-weight: 900;
  border-width: 2px;
  border-color: var(--c-navy);
  background-color: var(--c-white);
}

@media (max-width: 479px) {
  .calc-input-wrap--big .calc-input--big {
    padding: 1rem 3.25rem 1rem 1rem;
    font-size: 1.2rem;
  }

  .calc-input-suffix--big {
    right: 1rem;
    font-size: 0.875rem;
  }
}

.calc-input-wrap--big .calc-input--big:focus {
  box-shadow: 0 0 0 4px rgba(204, 0, 0, 0.12);
  border-color: var(--c-red);
}

.calc-input-suffix--big {
  right: 1.25rem;
  font-size: 1rem;
  opacity: 0.6;
}

/* Results */
.calc-results {
  margin-top: 2rem;
  padding: 1.75rem;
  background: linear-gradient(135deg, var(--c-gray-50) 0%, var(--c-white) 100%);
  border: 2px solid var(--c-gray-100);
}

@media (min-width: 768px) {
  .calc-results {
    padding: 2rem;
  }
}

.calc-result-main {
  text-align: center;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px dashed var(--c-gray-200);
}

.calc-result-main__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.6;
  margin-bottom: 0.625rem;
  color: var(--c-navy);
}

.calc-result-main__value {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  font-variant-numeric: tabular-nums;
  color: var(--c-navy);
}

.calc-result-main__value > span:first-child {
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-red);
}

.calc-result-main__unit {
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
  opacity: 0.7;
}

.calc-result-main__sub {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  opacity: 0.7;
  color: var(--c-navy);
}

.calc-result-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 480px) {
  .calc-result-grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .calc-result-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

.calc-result-card {
  background-color: var(--c-white);
  padding: 1rem;
  border: 1px solid var(--c-gray-100);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: var(--transition-normal);
}

.calc-result-card:hover {
  border-color: var(--c-navy);
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -5px rgba(16, 37, 66, 0.08);
}

.calc-result-card__icon {
  width: 2rem;
  height: 2rem;
  background-color: var(--c-navy);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
}

.calc-result-card__label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.6;
  color: var(--c-navy);
}

.calc-result-card__value {
  font-size: 1.0625rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--c-navy);
  letter-spacing: -0.01em;
}

/* CTA */
.calc-cta {
  margin-top: 1.75rem;
  padding: 1.75rem;
  background: var(--c-navy);
  color: var(--c-white);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.calc-cta::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(204, 0, 0, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

@media (min-width: 768px) {
  .calc-cta {
    grid-template-columns: 1fr auto;
    padding: 2rem 2.5rem;
    gap: 2rem;
  }
}

.calc-cta__text {
  position: relative;
  z-index: 1;
}

.calc-cta__title {
  font-size: 1.375rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 0.375rem;
  line-height: 1.2;
}

.calc-cta__desc {
  font-size: 0.9375rem;
  font-weight: 500;
  opacity: 0.75;
  line-height: 1.5;
}

.calc-cta__btn {
  position: relative;
  z-index: 1;
  white-space: nowrap;
}

@media (max-width: 767px) {
  .calc-cta__btn {
    width: 100%;
    white-space: normal;
    justify-content: center;
    text-align: center;
  }
}

/* Benefits reuse advantages__grid */
.calc-benefits {
  background-color: var(--c-white);
}

/* Formula */
.calc-formula-section {
  background-color: var(--c-gray-50);
}

.calc-formula-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) and (max-width: 1023px) {
  .calc-formula-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .calc-formula-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

.title-section--left {
  text-align: left;
}

.text-lead--formula {
  text-align: left;
  margin-bottom: 2rem;
}

.calc-formula-copy .text-lead--formula em {
  font-style: normal;
  font-weight: 800;
  color: var(--c-red);
}

.calc-formula-card {
  background-color: var(--c-white);
  border: 2px solid var(--c-gray-100);
  padding: 1.5rem;
}

.calc-formula-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem 0;
  border-bottom: 1px dashed var(--c-gray-200);
}

@media (max-width: 639px) {
  .calc-formula-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

.calc-formula-row:last-child {
  border-bottom: 0;
}

.calc-formula-label {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
  color: var(--c-navy);
}

.calc-formula-eq {
  font-family: 'Inter', monospace;
  font-size: 1.125rem;
  font-weight: 900;
  color: var(--c-red);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

@media (max-width: 639px) {
  .calc-formula-eq {
    font-size: 1rem;
    overflow-wrap: anywhere;
  }
}

.calc-formula-note {
  margin-top: 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0.7;
  line-height: 1.6;
}

.calc-example-card {
  background: linear-gradient(135deg, var(--c-navy) 0%, #0a1a2e 100%);
  color: var(--c-white);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.calc-example-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--c-red);
}

.calc-example-card__title {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.6;
  margin-bottom: 0.75rem;
}

.calc-example-card__size {
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

.calc-example-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 0;
  margin: 0;
}

.calc-example-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  font-size: 0.9375rem;
}

.calc-example-list li span {
  opacity: 0.7;
  font-weight: 600;
}

.calc-example-list li strong {
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--c-white);
  overflow-wrap: anywhere;
  text-align: right;
}

@media (max-width: 639px) {
  .calc-example-list li {
    flex-direction: column;
    align-items: flex-start;
  }

  .calc-example-list li strong {
    text-align: left;
  }

  .calc-example-card {
    padding: 1.5rem;
  }

  .calc-example-card__size {
    font-size: 1.25rem;
  }
}

/* FAQ section */
.calc-faq-section {
  background-color: var(--c-gray-50);
}

.calc-faq-list .faq-item {
  background-color: var(--c-white);
}

/* SEO text */
.calc-seo-section {
  background-color: var(--c-white);
}

.calc-seo {
  max-width: 1040px;
  margin: 0 auto;
  color: var(--c-navy);
}

@media (min-width: 1280px) {
  .calc-seo {
    max-width: 1120px;
  }
}

.calc-seo__title {
  font-size: clamp(1.875rem, 3.6vw, 2.5rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1.75rem;
  position: relative;
  padding-bottom: 1.25rem;
}

.calc-seo__title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 4.5rem;
  height: 4px;
  background-color: var(--c-red);
}

.calc-seo__lead {
  font-size: 1.1875rem;
  line-height: 1.7;
  font-weight: 500;
  margin-bottom: 2rem;
  color: var(--c-navy);
  opacity: 0.92;
}

.calc-seo__subtitle {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 900;
  text-transform: none;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 2.75rem 0 0.875rem;
  color: var(--c-navy);
  padding-left: 1rem;
  border-left: 3px solid var(--c-red);
}

.calc-seo p {
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: 1.125rem;
  color: var(--c-navy);
  opacity: 0.88;
}

.calc-seo p strong {
  color: var(--c-navy);
  opacity: 1;
  font-weight: 800;
}

.calc-seo__list {
  padding-left: 0;
  margin: 0.5rem 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.calc-seo__list li {
  position: relative;
  font-size: 1.0625rem;
  line-height: 1.7;
  opacity: 0.88;
  list-style: none;
  padding-left: 1.75rem;
}

.calc-seo__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6875rem;
  width: 0.625rem;
  height: 0.625rem;
  background-color: var(--c-red);
}

.calc-seo__list--ordered {
  counter-reset: seo-step;
}

.calc-seo__list--ordered li {
  counter-increment: seo-step;
  padding-left: 2.75rem;
}

.calc-seo__list--ordered li::before {
  content: counter(seo-step);
  background-color: var(--c-navy);
  color: var(--c-white);
  width: 1.875rem;
  height: 1.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 900;
  top: 0.125rem;
}

/* Modal summary */
.calc-modal-summary {
  background-color: var(--c-gray-50);
  border-left: 3px solid var(--c-red);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.calc-modal-summary__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.375rem 0;
  font-size: 0.875rem;
}

.calc-modal-summary__row span {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  opacity: 0.6;
}

.calc-modal-summary__row strong {
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--c-navy);
  text-align: right;
  overflow-wrap: anywhere;
}

@media (max-width: 479px) {
  .calc-modal-summary__row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .calc-modal-summary__row strong {
    text-align: left;
  }
}

/* Modal wider for calculator */
#calc-modal .modal__content {
  max-width: 500px;
}

/* Helper: hidden inline */
[data-mode-label].hidden {
  display: none;
}

/* Calculator page — overflow & small-screen rhythm */
.page-calculator {
  overflow-x: clip;
}

@media (max-width: 639px) {
  .page-calculator {
    --container-padding: 1rem;
  }

  .page-calculator .section {
    padding: 2.25rem 0;
  }

  .page-calculator .calc-hero {
    padding: 1.75rem 0 2.25rem;
  }

  .page-calculator .calc-tab {
    padding: 1rem 0.5rem;
    font-size: 0.8125rem;
    gap: 0.45rem;
  }

  .page-calculator .calc-tab i {
    font-size: 1.05rem;
  }

  .page-calculator .calc-body {
    padding: 1.25rem;
  }

  .page-calculator .calc-results {
    padding: 1.25rem;
  }

  .page-calculator .calc-cta {
    padding: 1.25rem;
  }

  .page-calculator .calc-formula-card {
    padding: 1.125rem;
  }

  .page-calculator .calc-seo__title {
    font-size: 1.5rem;
    padding-bottom: 1rem;
    margin-bottom: 1.25rem;
  }

  .page-calculator .calc-seo__subtitle {
    font-size: 1.125rem;
    margin-top: 2rem;
  }

  .page-calculator .calc-seo__lead {
    font-size: 1.0625rem;
    margin-bottom: 1.5rem;
  }

  .page-calculator .calc-seo p {
    font-size: 1rem;
  }
}

@media (min-width: 640px) and (max-width: 1023px) {
  .page-calculator .advantages__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}