/* ============================================================
   ZenpackerPro — Industrial B2B Packaging Machinery Website
   Design language inspired by Festo: precise, modular, industrial
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --blue-900: #0a1628;
  --blue-800: #0d2240;
  --blue-700: #12325c;
  --blue-600: #164278;
  --blue-500: #1a5494;
  --blue-400: #2d6cb5;
  --blue-300: #4a8fd4;
  --blue-100: #dceaf7;

  --gray-900: #1a1d23;
  --gray-800: #2d3139;
  --gray-700: #454a54;
  --gray-600: #5c6370;
  --gray-500: #787f8c;
  --gray-400: #9ba3af;
  --gray-300: #c5cad1;
  --gray-200: #e2e5ea;
  --gray-100: #f0f2f5;
  --gray-50:  #f7f8fa;
  --white:    #ffffff;

  --accent:       #00a3e0;
  --accent-hover: #008fc4;
  --accent-green: #25d366;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --container: 1200px;
  --header-h: 72px;
  --topbar-h: 36px;

  --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.08);
  --shadow-md: 0 4px 16px rgba(10, 22, 40, 0.10);
  --shadow-lg: 0 8px 32px rgba(10, 22, 40, 0.14);

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--blue-500);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent);
}

ul {
  list-style: none;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section--gray {
  background: var(--gray-50);
}

.section--dark {
  background: var(--blue-900);
  color: var(--gray-200);
}

/* --- Top Bar --- */
.top-bar {
  background: var(--blue-800);
  color: var(--gray-400);
  font-size: 13px;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
}

.top-bar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar__tagline {
  letter-spacing: 0.02em;
}

.top-bar__links {
  display: flex;
  gap: 24px;
}

.top-bar__links a {
  color: var(--gray-300);
  font-size: 13px;
}

.top-bar__links a:hover {
  color: var(--white);
}

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  height: var(--header-h);
  transition: box-shadow var(--transition);
}

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

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

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--blue-800);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.logo__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--blue-700);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  letter-spacing: 0;
}

.logo__text span {
  color: var(--accent);
}

.logo--footer .logo__mark {
  background: var(--blue-500);
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__list a {
  display: block;
  padding: 8px 14px;
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.nav__list a:hover {
  background: var(--gray-100);
  color: var(--blue-700);
}

.nav__highlight {
  color: var(--blue-600) !important;
  font-weight: 600 !important;
}

.nav__cta {
  margin-left: 12px;
}

/* --- Language Dropdown --- */
.lang-dropdown {
  position: relative;
}

.lang-dropdown__toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-700);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  white-space: nowrap;
}

.lang-dropdown__toggle:hover {
  border-color: var(--gray-400);
  background: var(--gray-50);
}

.lang-dropdown__globe {
  width: 16px;
  height: 16px;
  color: var(--gray-500);
  flex-shrink: 0;
}

.lang-dropdown__chevron {
  width: 12px;
  height: 12px;
  color: var(--gray-500);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.lang-dropdown--open .lang-dropdown__chevron {
  transform: rotate(180deg);
}

.lang-dropdown__menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 200;
  overflow: hidden;
}

.lang-dropdown--open .lang-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown__option {
  display: block;
  width: 100%;
  padding: 10px 16px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.lang-dropdown__option:hover {
  background: var(--gray-50);
  color: var(--blue-700);
}

.lang-dropdown__option--active {
  color: var(--blue-600);
  background: var(--blue-100);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--gray-800);
  transition: transform var(--transition), opacity var(--transition);
  border-radius: 1px;
}

.nav-toggle--active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle--active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle--active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.1s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn--sm {
  padding: 7px 16px;
  font-size: 13px;
}

.btn--lg {
  padding: 14px 32px;
  font-size: 15px;
}

.btn--block {
  width: 100%;
}

.btn--primary {
  background: var(--blue-600);
  color: var(--white);
  border-color: var(--blue-600);
}

.btn--primary:hover {
  background: var(--blue-700);
  border-color: var(--blue-700);
  color: var(--white);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
}

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

.btn--accent {
  background: var(--accent-green);
  color: var(--white);
  border-color: var(--accent-green);
}

.btn--accent:hover {
  background: #1fb855;
  border-color: #1fb855;
  color: var(--white);
}

.btn__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* --- Hero --- */
.hero {
  position: relative;
  background: var(--blue-800);
  color: var(--white);
  overflow: hidden;
  padding: 80px 0 72px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(10, 22, 40, 0.7) 0%, rgba(18, 50, 92, 0.5) 100%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 80px,
      rgba(255, 255, 255, 0.015) 80px,
      rgba(255, 255, 255, 0.015) 81px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 80px,
      rgba(255, 255, 255, 0.015) 80px,
      rgba(255, 255, 255, 0.015) 81px
    );
  background-color: var(--blue-900);
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 680px;
  margin-bottom: 56px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero__title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  white-space: pre-line;
}

.hero__desc {
  font-size: 17px;
  line-height: 1.7;
  color: var(--gray-300);
  margin-bottom: 32px;
  max-width: 560px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 680px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  backdrop-filter: blur(4px);
}

.stat-card__value {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.stat-card__label {
  display: block;
  font-size: 13px;
  color: var(--gray-400);
  margin-top: 4px;
}

/* --- Section Headers --- */
.section-header {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-header--light .section-header__title,
.section-header--light .section-header__desc {
  color: var(--gray-200);
}

.section-header__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-header__title {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--blue-900);
  margin-bottom: 16px;
}

.section-header--light .section-header__title {
  color: var(--white);
}

.section-header__desc {
  font-size: 17px;
  color: var(--gray-600);
  line-height: 1.65;
}

.section-header--light .section-header__desc {
  color: var(--gray-400);
}

/* --- Feature Cards --- */
.card-grid {
  display: grid;
  gap: 24px;
}

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

.card-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--gray-300);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  color: var(--blue-500);
  margin-bottom: 20px;
}

.feature-card__icon svg {
  width: 100%;
  height: 100%;
}

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 10px;
}

.feature-card__text {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.65;
  margin-bottom: 16px;
}

.feature-card__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue-500);
}

.feature-card__link:hover {
  color: var(--accent);
}

/* --- Machinery Portfolio --- */
.machine-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.machine-card--featured {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 0;
  border-color: rgba(0, 163, 224, 0.35);
  box-shadow: 0 0 0 1px rgba(0, 163, 224, 0.15), var(--shadow-lg);
}

.machine-card--featured .machine-card__header {
  padding: 36px 32px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 163, 224, 0.06);
}

.machine-card--featured .machine-card__body {
  padding: 36px 32px;
}

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

/* --- Portfolio Category Tabs --- */
.portfolio-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.portfolio-tabs__btn {
  padding: 10px 20px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-400);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.portfolio-tabs__btn:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.portfolio-tabs__btn--active {
  color: var(--white);
  background: var(--blue-600);
  border-color: var(--blue-500);
  box-shadow: var(--shadow-sm);
}

.portfolio-panel {
  display: none;
}

.portfolio-panel--active {
  display: block;
}

.portfolio-panel__intro {
  font-size: 15px;
  color: var(--gray-400);
  line-height: 1.65;
  margin-bottom: 32px;
  max-width: 720px;
}

.machine-card--featured {
  margin-bottom: 32px;
}

.machine-card__header {
  padding: 24px 24px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.machine-card__subtitle {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-400);
  line-height: 1.5;
  margin-bottom: 12px;
}

.machine-card__badge {
  display: inline-block;
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
}

.machine-card__badge--flagship {
  color: var(--white);
  background: var(--accent);
  box-shadow: var(--shadow-md);
}

.machine-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.machine-card__brand {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.machine-card__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.machine-card--featured .machine-card__title {
  font-size: 28px;
}

.machine-card__desc {
  font-size: 14px;
  color: var(--gray-400);
  line-height: 1.65;
  margin-bottom: 20px;
}

/* Tech Specs */
.machine-card__specs {
  margin-bottom: 20px;
  flex: 1;
}

.machine-card__specs-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.machine-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.machine-spec-table th[scope="row"] {
  text-align: left;
  padding: 7px 12px 7px 0;
  font-weight: 500;
  color: var(--gray-500);
  width: 48%;
  vertical-align: top;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.machine-spec-table td {
  padding: 7px 0;
  color: var(--gray-200);
  vertical-align: top;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.machine-spec-table tr:last-child th,
.machine-spec-table tr:last-child td {
  border-bottom: none;
}

.machine-card__cta {
  margin-top: auto;
}

.specs-note {
  margin-top: 32px;
  font-size: 13px;
  color: var(--gray-500);
  font-style: italic;
}

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

.industry-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.industry-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.industry-item__image {
  aspect-ratio: 16 / 9;
  background: var(--gray-100);
  overflow: hidden;
}

.industry-item__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-400);
  letter-spacing: 0.03em;
  background:
    linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%),
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 10px,
      rgba(255, 255, 255, 0.5) 10px,
      rgba(255, 255, 255, 0.5) 11px
    );
  border-bottom: 1px solid var(--gray-200);
}

.industry-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.industry-item__content {
  padding: 22px 24px 26px;
  border-top: 3px solid var(--blue-500);
  flex: 1;
}

.industry-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 8px;
}

.industry-item p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.6;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-grid__content p {
  font-size: 16px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 16px;
}

.about-list {
  margin-top: 24px;
}

.about-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: 15px;
  color: var(--gray-700);
  font-weight: 500;
}

.about-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--blue-500);
  font-weight: 700;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-visual__block {
  background: var(--blue-800);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
}

.about-visual__number {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.about-visual__label {
  display: block;
  font-size: 13px;
  color: var(--gray-400);
  margin-top: 6px;
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--blue-700);
  padding: 64px 0;
}

.cta-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cta-banner__text h2 {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.cta-banner__text p {
  font-size: 16px;
  color: var(--gray-300);
  max-width: 520px;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.contact-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 28px 24px;
}

.contact-card h3 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 14px;
  color: var(--gray-600);
  margin-bottom: 12px;
}

.contact-card__value {
  font-size: 15px;
  font-weight: 600;
  color: var(--blue-800);
}

a.contact-card__value:hover {
  color: var(--accent);
}

/* Inquiry Form */
.inquiry-form {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 40px;
}

.inquiry-form__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 28px;
}

.inquiry-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font);
  font-size: 15px;
  padding: 10px 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--gray-800);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(45, 108, 181, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.inquiry-form__actions {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.inquiry-form__note {
  font-size: 14px;
  color: var(--gray-600);
}

.inquiry-form__note a {
  font-weight: 600;
}

/* --- Footer --- */
.footer {
  background: var(--blue-900);
  color: var(--gray-400);
  padding: 64px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__desc {
  font-size: 14px;
  line-height: 1.65;
  margin-top: 16px;
  max-width: 300px;
}

.footer__col h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-300);
  margin-bottom: 16px;
}

.footer__col ul li {
  margin-bottom: 8px;
}

.footer__col a {
  font-size: 14px;
  color: var(--gray-500);
}

.footer__col a:hover {
  color: var(--white);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 13px;
}

.footer__domain {
  color: var(--gray-500);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .machine-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .machine-card--featured {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .top-bar__tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: calc(var(--topbar-h) + var(--header-h));
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 16px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    border-top: 1px solid var(--gray-200);
  }

  .nav--open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav__list a {
    padding: 14px 16px;
    font-size: 16px;
    border-bottom: 1px solid var(--gray-100);
  }

  .nav__cta {
    margin-left: 0;
    text-align: center;
    padding: 14px;
  }

  .hero {
    padding: 56px 0 48px;
  }

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

  .card-grid--3,
  .card-grid--4 {
    grid-template-columns: 1fr;
  }

  .machine-card--featured {
    grid-template-columns: 1fr;
  }

  .machine-card--featured .machine-card__header {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

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

  .portfolio-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 16px;
    margin-bottom: 32px;
  }

  .portfolio-tabs::-webkit-scrollbar {
    display: none;
  }

  .portfolio-tabs__btn {
    flex-shrink: 0;
  }

  .lang-dropdown {
    width: 100%;
  }

  .lang-dropdown__toggle {
    width: 100%;
    justify-content: center;
  }

  .lang-dropdown__menu {
    left: 0;
    right: 0;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .cta-banner__inner {
    flex-direction: column;
    text-align: center;
  }

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

  .inquiry-form {
    padding: 28px 20px;
  }

  .inquiry-form__grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .top-bar__links {
    gap: 12px;
    font-size: 12px;
  }
}