:root {
  --background: #fafafa;
  --text-primary: #0a0a0a;
  --text-secondary: #525252;
  --text-tertiary: #737373;
  --highlight: #000000;
  --surface: #ffffff;
  --border: #e5e5e5;
  --border-light: #f5f5f5;
  --accent: #171717;
  --accent-hover: #262626;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12);
  font-size: 16px;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background: linear-gradient(160deg, #ffffff 0%, #fafafa 50%, #f5f5f5 100%);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  top: -50%;
  right: -30%;
  width: 80vw;
  height: 80vh;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.02) 0%, transparent 70%);
  pointer-events: none;
  animation: float 20s ease-in-out infinite;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  bottom: -40%;
  left: -20%;
  width: 70vw;
  height: 70vh;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.015) 0%, transparent 70%);
  pointer-events: none;
  animation: float 25s ease-in-out infinite reverse;
  z-index: 0;
}

.page {
  position: relative;
  z-index: 1;
  width: min(920px, 94vw);
  display: grid;
  gap: clamp(4rem, 8vw, 7rem);
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 2.5rem) clamp(4rem, 8vw, 6rem);
  animation: fadeInUp 0.8s ease-out;
}


.hero {
  text-align: center;
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  justify-items: center;
  animation: fadeIn 1s ease-out 0.2s both;
}

.hero__branding {
  animation: slideDown 0.6s ease-out 0.3s both;
}

.hero__logo {
  margin: 0 0 0.5rem;
  font-size: clamp(2.8rem, 5vw, 4rem);
  letter-spacing: clamp(0.35rem, 1vw, 0.5rem);
  font-weight: 300;
  text-transform: uppercase;
  color: var(--highlight);
  line-height: 1;
  white-space: nowrap;
}

.hero__logo span {
  display: inline-block;
  transition: transform 0.3s ease;
}

.hero__logo-light {
  font-weight: 300;
}

.hero__logo-bold {
  font-weight: 700;
  margin-left: -0.05em;
}

.hero__tagline {
  margin: 0;
  font-size: clamp(0.7rem, 1.5vw, 0.85rem);
  letter-spacing: clamp(0.5rem, 1.2vw, 0.75rem);
  text-transform: uppercase;
  color: var(--text-tertiary);
  font-weight: 400;
}

.hero__title {
  margin: 0;
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 500;
  letter-spacing: clamp(0.15rem, 0.8vw, 0.25rem);
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--text-secondary);
  animation: fadeIn 0.8s ease-out 0.5s both;
}

.hero__notice {
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  text-transform: uppercase;
  line-height: 1.75;
  letter-spacing: clamp(0.18rem, 0.8vw, 0.28rem);
  color: var(--text-secondary);
  background: var(--surface);
  padding: clamp(2rem, 4vw, 2.75rem) clamp(2rem, 5vw, 3rem);
  border-radius: 2px;
  box-shadow: var(--shadow-lg);
  max-width: 52ch;
  margin: 0 auto;
  border: 1px solid var(--border-light);
  position: relative;
  animation: fadeInUp 0.8s ease-out 0.6s both;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero__notice::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--highlight), transparent);
  animation: shimmer 3s ease-in-out infinite;
}

.hero__notice:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.hero__notice p {
  margin: 0.5rem 0;
  font-weight: 400;
}

.hero__address {
  font-weight: 600;
  color: var(--highlight);
  margin-top: 1rem;
  display: block;
}

/* Social Media Section */
.social {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.8s ease-out 0.7s both;
}

.social__links {
  display: flex;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.social__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-secondary);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: clamp(1rem, 2.5vw, 1.25rem);
  border-radius: 2px;
  background: var(--surface);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.social__link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--highlight), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.social__link:hover::before {
  opacity: 1;
}

.social__link:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: var(--highlight);
  border-color: var(--border);
}

.social__link:active {
  transform: translateY(-2px);
}

.social__icon {
  width: clamp(1.5rem, 4vw, 1.75rem);
  height: clamp(1.5rem, 4vw, 1.75rem);
  transition: transform 0.3s ease;
}

.social__link:hover .social__icon {
  transform: scale(1.1);
}

.social__label {
  font-size: clamp(0.7rem, 1.5vw, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12rem;
  transition: letter-spacing 0.3s ease;
}

.social__link:hover .social__label {
  letter-spacing: 0.18rem;
}

.contact {
  background: var(--surface);
  padding: clamp(2.5rem, 5vw, 3.5rem) clamp(2.25rem, 5vw, 3rem);
  border-radius: 2px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
  display: grid;
  gap: clamp(1.75rem, 3vw, 2.25rem);
  max-width: min(680px, 100%);
  margin: 0 auto;
  position: relative;
  animation: fadeInUp 0.8s ease-out 0.8s both;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.contact:hover {
  transform: translateY(-1px);
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.14);
}

.contact__intro {
  text-align: center;
  display: grid;
  gap: 0.75rem;
}

.contact__intro h2 {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: clamp(0.25rem, 0.8vw, 0.4rem);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  color: var(--highlight);
}

.contact__intro p {
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: clamp(0.9rem, 1.6vw, 1rem);
  max-width: 44ch;
  line-height: 1.6;
}

.contact__form {
  display: grid;
  gap: clamp(1.25rem, 2.5vw, 1.5rem);
  width: 100%;
}

.field {
  display: grid;
  gap: 0.5rem;
  animation: fadeIn 0.5s ease-out both;
}

.field:nth-child(1) { animation-delay: 0.9s; }
.field:nth-child(2) { animation-delay: 1s; }
.field:nth-child(3) { animation-delay: 1.1s; }
.field:nth-child(4) { animation-delay: 1.2s; }

label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15rem;
  color: var(--highlight);
  transition: color 0.2s ease;
}

input,
textarea {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 2px;
  padding: clamp(0.85rem, 2vw, 1rem) clamp(1.1rem, 2.5vw, 1.35rem);
  font: inherit;
  font-size: clamp(0.9rem, 1.8vw, 1rem);
  background-color: var(--surface);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
  color: var(--text-primary);
  line-height: 1.5;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-tertiary);
  opacity: 0.5;
}

input:hover,
textarea:hover {
  border-color: var(--text-tertiary);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--highlight);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05), var(--shadow-md);
  transform: translateY(-1px);
  background-color: #ffffff;
}

textarea {
  resize: vertical;
  min-height: 8.5rem;
  font-family: inherit;
}

.field__error {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 500;
  color: #dc2626;
  min-height: 1em;
  letter-spacing: 0.01em;
  animation: shake 0.4s ease;
}

.contact__submit {
  border: none;
  border-radius: 2px;
  padding: clamp(1.1rem, 2.5vw, 1.25rem) clamp(2.5rem, 6vw, 3.5rem);
  background: var(--highlight);
  color: #ffffff;
  font-weight: 600;
  font-size: clamp(0.85rem, 1.8vw, 0.95rem);
  letter-spacing: 0.2rem;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  animation: fadeIn 0.5s ease-out 1.3s both;
  margin-top: 0.5rem;
}

.contact__submit::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.contact__submit:hover::before {
  width: 300px;
  height: 300px;
}

.contact__submit:hover,
.contact__submit:focus {
  outline: none;
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
  background: var(--accent-hover);
}

.contact__submit:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

.contact__submit[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

.contact__submit[disabled]:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
  background: var(--highlight);
}

.contact__status {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  padding: 1rem 1.5rem;
  border-radius: 2px;
  border: 1px solid;
  animation: slideIn 0.4s ease-out;
  letter-spacing: 0.02em;
}

.contact__status--success {
  background-color: #f0fdf4;
  color: #166534;
  border-color: #bbf7d0;
}

.contact__status--error {
  background-color: #fef2f2;
  color: #991b1b;
  border-color: #fecaca;
}



/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(30px, -30px) rotate(5deg);
  }
  66% {
    transform: translate(-20px, 20px) rotate(-5deg);
  }
}

@keyframes shimmer {
  0% {
    opacity: 0;
    transform: translateX(-100%);
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateX(100%);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

/* Tablet Styles */
@media (min-width: 768px) {
  .page {
    gap: clamp(5rem, 8vw, 7rem);
  }

  .social__links {
    gap: 3rem;
  }

  .social__link {
    padding: 1.5rem 1.75rem;
  }

  .contact {
    max-width: 640px;
    padding: 3rem 3.5rem 3.5rem;
  }

  .contact__form {
    gap: 1.5rem;
  }

  .hero__logo:hover .hero__logo-light {
    transform: translateX(-2px);
  }

  .hero__logo:hover .hero__logo-bold {
    transform: translateX(2px);
  }
}

/* Mobile Optimization */
@media (max-width: 767px) {
  body {
    align-items: flex-start;
    padding-top: 2rem;
  }

  .page {
    gap: 3rem;
    padding: 2rem 1.25rem 3rem;
    width: 100%;
  }

  .hero {
    gap: 2rem;
  }

  .social__links {
    gap: 1.25rem;
  }

  .social__link {
    padding: 1rem 1.25rem;
  }

  .social__icon {
    width: 1.4rem;
    height: 1.4rem;
  }

  .social__label {
    font-size: 0.65rem;
    letter-spacing: 0.1rem;
  }

  .hero__logo {
    font-size: clamp(2.2rem, 10vw, 2.8rem);
    letter-spacing: clamp(0.28rem, 1.5vw, 0.4rem);
  }

  .hero__tagline {
    font-size: 0.65rem;
    letter-spacing: clamp(0.35rem, 2vw, 0.5rem);
  }

  .hero__title {
    font-size: clamp(1.3rem, 6vw, 1.6rem);
    letter-spacing: clamp(0.12rem, 1.5vw, 0.18rem);
    line-height: 1.5;
  }

  .hero__notice {
    padding: 1.75rem 1.5rem;
    font-size: clamp(0.9rem, 4.5vw, 1.1rem);
    letter-spacing: clamp(0.15rem, 1.2vw, 0.2rem);
    line-height: 1.8;
  }

  .contact {
    padding: 2rem 1.5rem 2.5rem;
    box-shadow: var(--shadow-lg);
  }

  .contact__intro h2 {
    font-size: 1.15rem;
    letter-spacing: 0.2rem;
  }

  .contact__intro p {
    font-size: 0.85rem;
  }

  .contact__form {
    gap: 1.25rem;
  }

  label {
    font-size: 0.7rem;
    letter-spacing: 0.12rem;
  }

  input,
  textarea {
    padding: 0.9rem 1.1rem;
    font-size: 0.95rem;
  }

  textarea {
    min-height: 7rem;
  }

  .contact__submit {
    width: 100%;
    padding: 1.1rem 2rem;
    font-size: 0.8rem;
    letter-spacing: 0.18rem;
  }

  .field__error {
    font-size: 0.7rem;
  }

  .contact__status {
    font-size: 0.85rem;
    padding: 0.9rem 1.2rem;
  }
}

/* Small Mobile Optimization */
@media (max-width: 380px) {
  .page {
    padding: 1.5rem 1rem 2.5rem;
  }

  .social__links {
    gap: 0.75rem;
  }

  .social__link {
    padding: 0.85rem 1rem;
    gap: 0.5rem;
  }

  .social__icon {
    width: 1.25rem;
    height: 1.25rem;
  }

  .social__label {
    font-size: 0.6rem;
    letter-spacing: 0.08rem;
  }

  .hero__logo {
    font-size: 2rem;
    letter-spacing: 0.25rem;
  }

  .hero__tagline {
    font-size: 0.6rem;
    letter-spacing: 0.3rem;
  }

  .hero__title {
    font-size: 1.2rem;
    letter-spacing: 0.1rem;
  }

  .hero__notice {
    padding: 1.5rem 1.25rem;
    font-size: 0.85rem;
    letter-spacing: 0.12rem;
  }

  .contact {
    padding: 1.75rem 1.25rem 2rem;
  }

  .contact__intro h2 {
    font-size: 1rem;
    letter-spacing: 0.18rem;
  }

  label {
    font-size: 0.65rem;
  }

  input,
  textarea {
    padding: 0.85rem 1rem;
    font-size: 0.9rem;
  }

  .contact__submit {
    padding: 1rem 1.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.15rem;
  }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --border: #000000;
    --text-secondary: #000000;
  }

  input,
  textarea {
    border-width: 2px;
  }
}