:root {
  --color-bg: #fdfbf7;
  --color-text: #222222;
  --color-subtext: #6f6a61;
  --color-accent: #3c82f6;
  --color-accent-dark: #286bd3;
  --color-line: #ece6dd;
  --color-dark: #111827;
  --container: 1120px;
  --page-padding: clamp(20px, 4vw, 48px);
  --section-space: clamp(88px, 11vw, 144px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

img[hidden] {
  display: none;
}

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

button,
input,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.container {
  width: min(calc(100% - (var(--page-padding) * 2)), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 7px 12px;
  color: #fff;
  background: var(--color-dark);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

/* Header */
.site-header {
  position: relative;
  z-index: 20;
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.site-name {
  font-family: "Outfit", sans-serif;
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.global-navigation {
  display: flex;
  align-items: center;
  gap: clamp(28px, 4vw, 52px);
}

.global-navigation a {
  color: var(--color-subtext);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

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

.menu-button {
  display: none;
  width: 40px;
  height: 40px;
  padding: 10px;
  border: 0;
  color: var(--color-text);
  background: transparent;
  cursor: pointer;
}

.menu-button span {
  display: block;
  height: 1px;
  margin: 5px 0;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Hero */
.hero {
  overflow: hidden;
}

.hero-inner {
  position: relative;
  min-height: calc(100svh - 82px);
  max-height: 760px;
  display: grid;
  place-items: center;
  padding-block: 60px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero h1 {
  margin: 0;
  font-family: "Outfit", sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.11em;
}

.hero-copy p {
  margin: 20px 0 0;
  color: var(--color-dark);
  font-size: clamp(0.68rem, 1vw, 0.82rem);
  font-weight: 500;
  letter-spacing: 0.18em;
}

.hero-illustration {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(35vw, 410px);
  max-height: 570px;
  object-fit: contain;
  opacity: 0.085;
  mix-blend-mode: multiply;
  filter: grayscale(1);
  transform: translate(-50%, -50%);
  pointer-events: none;
  user-select: none;
}

/* Shared sections */
.section {
  padding-block: var(--section-space);
}

.section-heading {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: clamp(48px, 6vw, 68px);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-line);
}

.section-heading h2 {
  margin: 0;
  font-family: "Outfit", sans-serif;
  font-size: clamp(1.65rem, 3vw, 2.3rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.section-number {
  margin: 0;
  color: var(--color-subtext);
  font-family: "Outfit", sans-serif;
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0.14em;
}

/* Project */
.projects-section {
  padding-top: calc(var(--section-space) * 0.9);
}

.project {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: clamp(56px, 9vw, 118px);
}

.project-logo {
  position: relative;
  display: grid;
  place-items: center;
}

.project-logo img {
  width: min(100%, 260px);
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.logo-fallback {
  display: none;
  color: #fff;
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.project-logo.is-missing .logo-fallback {
  display: block;
}

.project-content h3 {
  margin: 0;
  font-family: "Outfit", sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.project-lead {
  margin: 22px 0 0;
  color: var(--color-dark);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.8;
}

.project-description {
  margin: 18px 0 0;
  color: var(--color-subtext);
  font-size: 0.84rem;
  line-height: 2;
}

/* Published works */
.works-section {
  padding-top: calc(var(--section-space) * 0.65);
}

.work-entry {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: clamp(56px, 9vw, 118px);
}

.work-cover {
  display: grid;
  justify-items: center;
}

.work-cover img {
  width: min(100%, 210px);
  height: auto;
}

.content-type {
  margin: 0 0 16px;
  color: var(--color-subtext);
  font-family: "Outfit", sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.work-content h3 {
  margin: 0;
  font-family: "Outfit", "Zen Kaku Gothic New", sans-serif;
  font-size: clamp(1.65rem, 3vw, 2.3rem);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.work-subtitle {
  margin: 12px 0 0;
  color: var(--color-dark);
  font-size: 0.84rem;
  font-weight: 500;
}

.work-description {
  margin: 22px 0 0;
  color: var(--color-subtext);
  font-size: 0.84rem;
  line-height: 2;
}

.work-meta {
  margin: 18px 0 0;
  color: var(--color-subtext);
  font-size: 0.72rem;
}

/* About and Note */
.information-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(64px, 10vw, 132px);
  padding-block: var(--section-space);
}

.information-section {
  max-width: 470px;
}

.information-section > p,
.contact-copy > p {
  margin: 0;
  color: var(--color-subtext);
  font-size: 0.88rem;
}

.information-section > p + p,
.contact-copy > p + p {
  margin-top: 16px;
}

.information-section > .about-name {
  color: var(--color-text);
  font-family: "Outfit", "Zen Kaku Gothic New", sans-serif;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

.about-name-reading {
  margin-left: 0.25em;
  color: var(--color-subtext);
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 0.68em;
  font-weight: 400;
  letter-spacing: 0;
}

.english-copy {
  color: var(--color-dark) !important;
  font-weight: 500;
  line-height: 1.8;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 700;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.text-link:hover {
  border-color: var(--color-accent-dark);
  color: var(--color-accent-dark);
}

/* Contact */
.contact-section {
  padding-top: calc(var(--section-space) * 0.75);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: clamp(64px, 11vw, 140px);
}

.contact-form {
  display: grid;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field {
  display: grid;
  gap: 7px;
}

.form-field label {
  color: var(--color-subtext);
  font-size: 0.7rem;
  font-weight: 500;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--color-line);
  border-radius: 0;
  color: var(--color-text);
  background: transparent;
  transition: border-color 0.2s ease;
}

.form-field input {
  min-height: 42px;
  padding: 6px 2px;
}

.form-field textarea {
  min-height: 120px;
  padding: 8px 2px;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--color-accent);
  outline: none;
}

.form-actions {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.submit-button {
  padding: 8px 0;
  border: 0;
  border-bottom: 1px solid var(--color-accent);
  border-radius: 0;
  color: var(--color-accent);
  background: transparent;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.submit-button:hover {
  color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.form-message {
  margin: 0;
  color: var(--color-subtext);
  font-size: 0.7rem;
}

.form-message[data-type="error"] {
  color: #b42318;
}

.submit-button:disabled,
.dialog-button:disabled {
  cursor: wait;
  opacity: 0.55;
}

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

/* Contact confirmation and result dialogs */
.contact-dialog {
  width: min(calc(100% - 32px), 600px);
  max-height: min(84vh, 760px);
  padding: 0;
  overflow: auto;
  border: 1px solid var(--color-line);
  color: var(--color-text);
  background-color: var(--color-bg);
  opacity: 1;
}

.contact-dialog::backdrop {
  background: rgba(17, 24, 39, 0.42);
  backdrop-filter: blur(2px);
}

.dialog-content {
  padding: clamp(28px, 5vw, 48px);
  background-color: var(--color-bg);
  opacity: 1;
}

.dialog-content h2 {
  margin: 0;
  font-family: "Outfit", sans-serif;
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.dialog-introduction {
  margin: 14px 0 0;
  color: var(--color-subtext);
  font-size: 0.84rem;
}

.confirmation-list {
  margin: 28px 0 0;
}

.confirmation-list > div {
  padding: 15px 0;
  border-bottom: 1px solid var(--color-line);
}

.confirmation-list dt {
  color: var(--color-subtext);
  font-size: 0.68rem;
  font-weight: 500;
}

.confirmation-list dd {
  margin: 7px 0 0;
  font-size: 0.85rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 20px;
  margin-top: 30px;
}

.dialog-button {
  padding: 9px 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  border-radius: 0;
  background: transparent;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.dialog-button-primary {
  color: var(--color-accent);
}

.dialog-button-secondary {
  color: var(--color-subtext);
}

/* Footer */
.site-footer {
  margin-top: 24px;
}

.footer-inner {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-subtext);
  font-size: 0.7rem;
  text-align: center;
}

.footer-inner p {
  margin: 0;
}

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

@media (max-width: 900px) {
  .project,
  .work-entry {
    grid-template-columns: minmax(260px, 0.85fr) minmax(0, 1.15fr);
    gap: 48px;
  }

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

  .contact-copy {
    max-width: 540px;
  }
}

@media (max-width: 680px) {
  :root {
    --page-padding: 20px;
    --section-space: 82px;
  }

  .header-inner {
    min-height: 70px;
  }

  .menu-button {
    position: relative;
    z-index: 2;
    display: block;
  }

  .menu-button[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-button[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .global-navigation {
    position: absolute;
    top: 58px;
    right: var(--page-padding);
    display: grid;
    gap: 0;
    padding: 12px 18px;
    background: var(--color-bg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  }

  .global-navigation.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .global-navigation a {
    padding: 8px 0;
    text-align: right;
  }

  .hero-inner {
    min-height: calc(100svh - 70px);
    padding-block: 40px;
  }

  .hero h1 {
    font-size: 1.75rem;
    letter-spacing: 0.12em;
  }

  .hero-copy p {
    max-width: 280px;
    margin-top: 18px;
    font-size: 0.66rem;
    line-height: 2;
    letter-spacing: 0.12em;
  }

  .hero-illustration {
    width: min(72vw, 300px);
    max-height: 440px;
    opacity: 0.075;
  }

  .section-heading {
    margin-bottom: 44px;
    padding-bottom: 14px;
  }

  .project,
  .work-entry,
  .information-grid {
    grid-template-columns: 1fr;
  }

  .project,
  .work-entry {
    gap: 36px;
  }

  .project-logo,
  .work-cover {
    justify-items: start;
  }

  .project-logo img {
    width: min(56vw, 190px);
  }

  .work-cover img {
    width: min(52vw, 180px);
  }

  .information-grid {
    gap: 88px;
  }

  .information-section {
    max-width: none;
  }

  .contact-layout {
    gap: 52px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .dialog-actions {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .dialog-button {
    width: 100%;
    padding: 12px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}