:root {
  --primary-900: #0a1628;
  --primary-800: #1a2744;
  --primary-700: #253654;
  --primary-600: #314a6e;
  --primary-500: #3d5c85;
  --primary-400: #5a7aa3;
  --primary-300: #7d9abd;
  
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-dark: #2563eb;
  
  --white: #ffffff;
  --black: #000000;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(12px);
  
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  --transition-fast: 150ms ease;
  --transition: 200ms ease;
  --transition-slow: 300ms ease;
  
  --container: 1200px;
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.nav-open {
  overflow: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition-slow);
}

.header--scrolled {
  padding: 1rem 0;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow);
}

.header__container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  flex-direction: row;
  gap: 0.125rem;
}

.header__logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-800);
  line-height: 1.2;
}

.header__logo-image {
  width: 55px;
}

.header__logo-sub {
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--gray-500);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.header__nav {
  display: none;
  align-items: center;
}

@media (min-width: 992px) {
  .header__nav {
    display: flex;
    position: fixed;
    top: 1rem;
    left: 56%;
    transform: translateX(-50%);
    z-index: 1001;
  }
  
  .header--scrolled + .header__nav,
  .header--scrolled ~ .header__nav {
    top: 0.75rem;
  }
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav__item {
  position: relative;
}

.nav__link {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-700);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--primary-700);
  background: var(--gray-100);
}

.nav__link--cta {
  background: var(--primary-700);
  color: var(--white);
  border-radius: var(--radius-full);
}

.nav__link--cta:hover {
  background: var(--primary-800);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-switcher {
  display: flex;
  gap: 0.25rem;
}

.lang-switcher__btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-600);
  background: var(--gray-100);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

.lang-switcher__btn:hover {
  background: var(--gray-200);
  color: var(--gray-800);
}

.lang-flag {
  font-size: 1rem;
  line-height: 1;
}

.lang-label {
  line-height: 1;
}

.header__menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
}

.header__menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all var(--transition);
}

.main {
  padding-top: 80px;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

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

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(260deg, rgb(45 50 60 / 92%) 0%, rgb(35 38 45 / 85%) 50%, rgb(30 35 50 / 90%) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

.hero__title {
  font-size: 66px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease-out;
}

.hero__title_first {
  font-size: 71px;
  font-weight: 700;
  color: #cfcece;
  line-height: 1.2;
  margin-bottom: 4.5rem;
  animation: fadeInUp 0.8s ease-out;
  text-shadow: 2px 2px 20px #000000;
}

.hero__title span {
  display: block;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary-800);
  background: var(--white);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-slow);
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  color: var(--primary-900);
}

.hero__cta svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition);
}

.hero__cta:hover svg {
  transform: translateX(4px);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section {
  padding: 5rem 0;
}

.section--alt {
  background: var(--white);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.section__title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--primary-800);
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent));
  border-radius: var(--radius-full);
}

.section__subtitle {
  font-size: 1rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
}

.content-section ul {
  list-style: none; /* Remove list bullets */
  padding: 0;
  margin: 0;
}

.content-section li {
  padding-left: 16px;
  margin-top: 10px;
}

.content-section li::before {
  content: "•"; /* Insert content that looks like bullets */
  padding-right: 8px;
  color: black; /* Or a color you prefer */
}

.pr-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

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

.pr-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow);
  transition: all var(--transition-slow);
  cursor: pointer;
}

.pr-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.pr-card__image {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.pr-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.pr-card:hover .pr-card__image img {
  transform: scale(1.05);
}

.pr-card__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(26, 39, 68, 0.9) 100%
  );
  padding: 3rem 1.5rem 1.5rem;
}

.pr-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
  min-height: 1.75rem;
}

.pr-card__desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
  min-height: 2.625rem;
}

.pr-card__arrow {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  opacity: 0;
  transform: translateX(-10px);
  transition: all var(--transition);
}

.pr-card:hover .pr-card__arrow {
  opacity: 1;
  transform: translateX(0);
}

.cta-section {
  background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-700) 100%);
  padding: 4rem 0;
}

.cta-box {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  padding: 3rem;
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.cta-box__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-800);
  margin-bottom: 0.5rem;
}

.cta-box__subtitle {
  font-size: 0.9375rem;
  color: var(--gray-500);
  margin-bottom: 2rem;
}

.cta-box__hours {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--gray-600);
  margin-bottom: 2rem;
}

.cta-box__hours svg {
  width: 16px;
  height: 16px;
  color: var(--primary-500);
}

.cta-box__offices {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.cta-office {
  text-align: center;
}

.cta-office__name {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: 0.25rem;
}

.cta-office__tel {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary-800);
}

.cta-box__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition);
  cursor: pointer;
}

.btn--primary {
  background: var(--primary-700);
  color: var(--white);
  box-shadow: var(--shadow);
}

.btn--primary:hover {
  background: var(--primary-800);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--primary-700);
  border: 2px solid var(--primary-700);
}

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

.page-hero {
  position: relative;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-600) 100%);
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  opacity: 0.15;
}

.page-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-hero__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

.page-hero__breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

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

.page-content {
  padding: 4rem 0;
}

.page-content .container {
  max-width: 900px;
}

.content-section {
  margin-bottom: 4rem;
}

.content-section:last-child {
  margin-bottom: 0;
}

.content-section__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-800);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--gray-200);
  position: relative;
}

.company-description-first {
  font-size: 20px;
  font-weight: 600;
}

.content-section__title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--primary-500);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.info-table th,
.info-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.info-table th {
  width: 200px;
  background: var(--gray-50);
  font-weight: 600;
  color: var(--gray-700);
}

.info-table td {
  color: var(--gray-800);
}

.info-table td.company_name_header {
  font-weight: 600;
  color: var(--gray-700);
}

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

.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-500), var(--primary-700));
}

.timeline__item {
  position: relative;
  padding-bottom: 2rem;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.25rem;
  width: 12px;
  height: 12px;
  background: var(--primary-700);
  border: 3px solid var(--white);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow);
  transform: translateX(-5px);
}

.timeline__year {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-600);
  margin-bottom: 0.25rem;
}

.timeline__content {
  color: var(--gray-700);
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}

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

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.form-label .required {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--white);
  background: var(--primary-600);
  border-radius: var(--radius-sm);
  margin-left: 0.5rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  color: var(--gray-800);
  background: var(--gray-50);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-500);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
}

.form-checkbox input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--primary-600);
}

.form-checkbox span {
  font-size: 0.875rem;
  color: var(--gray-600);
}

.form-submit {
  text-align: center;
  margin-top: 2rem;
}

.footer {
  background: var(--primary-900);
  color: var(--white);
  padding-top: 4rem;
}

.footer__container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 1.5fr 2fr 1fr;
  }
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  display: inline-flex;
  flex-direction: column;
  gap: 0.125rem;
  margin-bottom: 1rem;
}

.footer__logo .footer__logo-image {
  width: 57px;
}

.footer__logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
}

.footer__logo-sub {
  font-size: 0.625rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer__tagline {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

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

.footer__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__list li {
  margin-bottom: 0.5rem;
}

.footer__list a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

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

.footer__offices {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__office {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.footer__office-name {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer__office-tel {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--white);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 0;
  text-align: center;
}

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

.footer__copyright {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer__legal a {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

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

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--primary-700);
  color: var(--white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-slow);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-800);
  transform: translateY(-4px);
}

@media (max-width: 991px) {
  .header__nav {
    display: flex;
    position: fixed;
    top: 70px;
    right: 0;
    bottom: 0;
    width: 280px;
    background: var(--white);
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 1001;
    overflow-y: auto;
    flex-direction: column;
  }
  
  .header__nav.open {
    transform: translateX(0);
  }
  
  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }
  
  .nav__link {
    padding: 0.875rem 1rem;
  }
  
  .header__menu-btn {
    display: flex;
    z-index: 1002;
  }
  
  .header__menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .header__menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  
  .header__menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  .lang-switcher {
    display: none;
  }
  
  .header__nav .lang-switcher,
  .lang-switcher.mobile-only {
    display: flex;
    position: static;
    margin-top: 1.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--gray-200);
  }
}

@media (min-width: 992px) {
  .lang-switcher.mobile-only {
    display: none;
  }
}

@media (max-width: 767px) {
  .hero__content {
    padding: 1.5rem;
  }
  
  .pr-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-box__offices {
    flex-direction: column;
    gap: 1rem;
  }
  
  .footer__links {
    grid-template-columns: 1fr 1fr;
  }
  
  .info-table th {
    width: 120px;
  }
  
  .contact-form {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .header__logo-text {
    font-size: 1.25rem;
  }
  
  .lang-switcher {
    display: none;
  }
  
  .footer__links {
    grid-template-columns: 1fr;
  }
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 999;
  cursor: pointer;
}

.nav-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-out;
}

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