/* Midorino Home Builders — design-tokens + components */
@import url("https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,500;0,600;1,500&family=Noto+Sans+JP:wght@400;500;600&family=Shippori+Mincho:wght@500;600;700&display=swap");

:root {
  --color-bg: #f7f4ef;
  --color-bg-elevated: #ffffff;
  --color-text: #2c2a26;
  --color-text-muted: #6b6560;
  --color-accent: #5a6b52;
  --color-accent-soft: #e4ebe0;
  --color-line: #ddd6cc;
  --color-line-strong: #c4bbb0;
  --color-overlay: rgba(44, 42, 38, 0.28);
  --color-overlay-light: rgba(247, 244, 239, 0.55);
  --color-header-solid: rgba(247, 244, 239, 0.92);
  --color-error: #8f4a3a;
  --color-footer: #ebe4da;

  --font-serif-ja: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-sans-ja: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --font-serif-en: "Cormorant Garamond", "Times New Roman", serif;

  --fs-hero: clamp(1.75rem, 3.2vw, 2.5rem);
  --fs-h1: clamp(1.5rem, 2.4vw, 2rem);
  --fs-h2: clamp(1.25rem, 2vw, 1.75rem);
  --fs-h3: 1.125rem;
  --fs-body: 0.9375rem;
  --fs-small: 0.75rem;
  --fs-label-en: 0.6875rem;

  --lh-tight: 1.35;
  --lh-body: 1.85;
  --ls-en: 0.14em;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --section-y: clamp(64px, 10vw, 112px);
  --container: 1080px;
  --container-wide: 1280px;
  --gutter: clamp(16px, 4vw, 40px);

  --radius-sm: 2px;
  --radius-md: 4px;
  --shadow-soft: 0 1px 0 rgba(44, 42, 38, 0.04);

  --header-h: 72px;
  --header-h-scrolled: 64px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 200ms;
  --dur-mid: 450ms;
  --dur-slow: 900ms;
  --dur-page-bg: 1500ms;
}

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

html {
  scroll-behavior: auto;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: var(--font-sans-ja);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

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

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: #fff;
  padding: 8px 16px;
  z-index: 200;
}

.skip-link:focus {
  left: 8px;
  top: 8px;
}

.photo-tone {
  filter: saturate(0.92) contrast(1.02) brightness(1.01);
}

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

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

/* —— Header —— */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition:
    background var(--dur-mid) var(--ease-out),
    height var(--dur-mid) var(--ease-out),
    border-color var(--dur-mid) var(--ease-out),
    color var(--dur-mid) var(--ease-out);
  border-bottom: 1px solid transparent;
  color: #fff;
}

.site-header.is-scrolled,
.site-header.is-solid {
  height: var(--header-h-scrolled);
  background: var(--color-header-solid);
  backdrop-filter: blur(8px);
  border-bottom-color: var(--color-line);
  color: var(--color-text);
}

.site-header__inner {
  width: min(100% - var(--gutter) * 2, var(--container-wide));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-header__logo {
  font-family: var(--font-serif-ja);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.site-header__logo:hover {
  color: inherit;
  opacity: 0.85;
}

.site-header__nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-header__nav a {
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
}

.site-header__cta {
  font-size: var(--fs-small);
  color: inherit;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.site-header.is-scrolled .site-header__cta,
.site-header.is-solid .site-header__cta {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.site-header__toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: inherit;
}

.site-header__toggle span {
  display: block;
  width: 22px;
  height: 1px;
  margin: 6px auto;
  background: currentColor;
  transition: transform var(--dur-fast);
}

.site-header.is-open .site-header__toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-header.is-open .site-header__toggle span:nth-child(2) {
  opacity: 0;
}
.site-header.is-open .site-header__toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.drawer {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-bg);
  padding: calc(var(--header-h) + 24px) var(--gutter) var(--space-7);
  transform: translateX(100%);
  transition: transform var(--dur-mid) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

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

.drawer a {
  font-family: var(--font-serif-ja);
  font-size: 1.25rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-line);
}

@media (max-width: 860px) {
  .site-header__nav {
    display: none;
  }
  .site-header__toggle {
    display: block;
  }
}

/* —— Buttons —— */
.btn-arrow {
  display: inline-flex;
  align-items: center;
  position: relative;
  padding: 12px 70px 12px 28px;
  border: 1px solid var(--color-line-strong);
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-sans-ja);
  font-size: var(--fs-small);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.btn-arrow::after {
  content: "→";
  position: absolute;
  right: 24px;
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn-arrow:hover {
  background: var(--color-accent-soft);
  color: var(--color-text);
  border-color: var(--color-accent);
}

.btn-arrow:hover::after {
  transform: translateX(3px);
}

.btn-arrow--fill {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.btn-arrow--fill:hover {
  background: #4a5a44;
  color: #fff;
}

.btn-arrow--light {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-arrow--light:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* —— Section label —— */
.section-label {
  margin-bottom: var(--space-5);
}

.section-label__en {
  display: block;
  font-family: var(--font-serif-en);
  font-size: var(--fs-label-en);
  letter-spacing: var(--ls-en);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.section-label__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-serif-ja);
  font-size: var(--fs-h2);
  font-weight: 600;
  line-height: var(--lh-tight);
}

.section-label__lead {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 36em;
}

.section {
  padding: var(--section-y) 0;
}

.section--tight {
  padding: var(--space-8) 0;
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: 100svh;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
}

.hero__fv {
  position: absolute;
  inset: 0;
}

.hero__fv img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - var(--gutter) * 2, var(--container));
  margin: 0 auto;
  padding-bottom: clamp(72px, 14vh, 120px);
}

.hero__catch {
  margin: 0 0 var(--space-4);
  font-family: var(--font-serif-ja);
  font-size: var(--fs-hero);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: 0.06em;
}

.hero__sub {
  margin: 0;
  font-size: var(--fs-body);
  opacity: 0.92;
  max-width: 22em;
}

.hero__news {
  position: absolute;
  left: var(--gutter);
  bottom: 28px;
  z-index: 1;
  font-size: var(--fs-small);
  color: rgba(255, 255, 255, 0.9);
  max-width: 220px;
}

.hero__news a {
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

@media (min-width: 768px) {
  .hero__news {
    left: max(var(--gutter), calc((100% - var(--container)) / 2));
  }
}

/* Intro */
.intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-serif-ja);
  font-size: 1.25rem;
  letter-spacing: 0.12em;
  pointer-events: none;
}

.intro-overlay.is-done {
  display: none;
}

/* —— Page header —— */
.breadcrumb {
  padding: calc(var(--header-h-scrolled) + 12px) 0 0;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

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

.page-header {
  position: relative;
  min-height: clamp(240px, 36vw, 360px);
  display: flex;
  align-items: flex-end;
  margin-top: 8px;
  overflow: hidden;
}

.page-header__media {
  position: absolute;
  inset: 0;
}

.page-header__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
}

.page-header__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay-light);
}

.page-header__body {
  position: relative;
  z-index: 1;
  width: min(100% - var(--gutter) * 2, var(--container));
  margin: 0 auto;
  padding: var(--space-7) 0 var(--space-6);
}

.page-header__en {
  display: block;
  font-family: var(--font-serif-en);
  font-size: var(--fs-label-en);
  letter-spacing: var(--ls-en);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.page-header__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-serif-ja);
  font-size: var(--fs-h1);
  font-weight: 600;
  line-height: var(--lh-tight);
}

.page-header__lead {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 32em;
}

.page-header__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-4);
}

/* —— Grids / cards —— */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
}

@media (max-width: 960px) {
  .grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .grid-2,
  .grid-3,
  .grid-4,
  .grid-5 {
    grid-template-columns: 1fr;
  }
  .grid-5 {
    display: flex;
    overflow-x: auto;
    gap: var(--space-4);
    padding-bottom: var(--space-3);
    scroll-snap-type: x mandatory;
  }
  .grid-5 > * {
    flex: 0 0 72%;
    scroll-snap-align: start;
  }
}

.card-kodawari,
.card-work,
.card-value {
  display: block;
  color: inherit;
  background: transparent;
}

.card-kodawari:hover,
.card-work:hover {
  color: inherit;
}

.card-kodawari__media,
.card-work__media,
.card-value__media {
  overflow: hidden;
  background: var(--color-line);
  margin-bottom: var(--space-3);
}

.card-kodawari__media {
  aspect-ratio: 16 / 10;
}

.card-work__media {
  aspect-ratio: 4 / 3;
}

.card-value__media {
  aspect-ratio: 4 / 3;
}

.card-kodawari__media img,
.card-work__media img,
.card-value__media img,
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.card-kodawari:hover img,
.card-work:hover img {
  transform: scale(1.03);
}

.card-kodawari__no,
.card-work__no {
  display: block;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.card-kodawari__title,
.card-work__title,
.card-value__title {
  margin: 0 0 6px;
  font-family: var(--font-serif-ja);
  font-size: 1rem;
  font-weight: 600;
}

.card-kodawari__lead,
.card-value__text {
  margin: 0;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 8px;
}

.tag {
  font-size: 10px;
  padding: 2px 8px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.media-frame {
  overflow: hidden;
  background: var(--color-line);
}

.media-frame--tall {
  aspect-ratio: 4 / 5;
  min-height: 280px;
}

.media-frame--wide {
  aspect-ratio: 16 / 9;
}

.media-frame--map {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: var(--color-accent-soft);
  color: var(--color-text-muted);
  font-size: var(--fs-small);
}

.prose p {
  margin: 0 0 1em;
  color: var(--color-text-muted);
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose--strong > p:first-child {
  color: var(--color-text);
  font-family: var(--font-serif-ja);
  font-size: var(--fs-h3);
  line-height: 1.6;
}

.stack-gap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

/* —— Spec table —— */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-small);
}

.spec-table th,
.spec-table td {
  border: 1px solid var(--color-line);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  width: 28%;
  background: rgba(255, 255, 255, 0.6);
  font-weight: 600;
  color: var(--color-text);
}

.spec-table td {
  color: var(--color-text-muted);
}

/* —— CTA band —— */
.cta-band {
  padding: var(--space-7) 0;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-line);
}

.cta-band__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-6);
  align-items: center;
}

.cta-band__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-serif-ja);
  font-size: var(--fs-h3);
}

.cta-band__lead {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--fs-small);
}

.cta-band__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: flex-start;
}

.cta-band__tel {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

.cta-band__tel a {
  color: var(--color-text);
  font-weight: 600;
  font-size: 1.1rem;
}

@media (max-width: 720px) {
  .cta-band__inner {
    grid-template-columns: 1fr;
  }
}

/* —— Filter —— */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-6);
}

.filter-bar button {
  font-family: var(--font-sans-ja);
  font-size: var(--fs-small);
  padding: 8px 14px;
  border: 1px solid var(--color-line-strong);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--dur-fast), border-color var(--dur-fast);
}

.filter-bar button.is-active,
.filter-bar button:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.works-grid [data-tags][hidden] {
  display: none;
}

/* —— Contact form —— */
.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-7);
}

@media (max-width: 800px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

.form-field {
  margin-bottom: var(--space-4);
}

.form-field label {
  display: block;
  font-size: var(--fs-small);
  margin-bottom: 6px;
}

.form-field .req {
  color: var(--color-accent);
  margin-left: 4px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--color-line);
  background: var(--color-bg-elevated);
  font-family: var(--font-sans-ja);
  font-size: var(--fs-body);
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.form-field textarea {
  height: auto;
  min-height: 140px;
  padding: 12px 14px;
  resize: vertical;
}

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

.form-field__error {
  display: none;
  margin-top: 4px;
  font-size: var(--fs-small);
  color: var(--color-error);
}

.form-field.is-invalid .form-field__error {
  display: block;
}

.form-field.is-invalid input,
.form-field.is-invalid select,
.form-field.is-invalid textarea {
  border-color: var(--color-error);
}

.form-step {
  display: none;
}

.form-step.is-active {
  display: block;
}

.confirm-list {
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
  border-top: 1px solid var(--color-line);
}

.confirm-list li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-3);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-line);
  font-size: var(--fs-small);
}

.confirm-list dt,
.confirm-list .label {
  color: var(--color-text-muted);
}

.phone-panel {
  padding: var(--space-5);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-line);
}

.phone-panel__tel {
  margin: 0 0 var(--space-2);
  font-family: var(--font-serif-ja);
  font-size: 1.5rem;
}

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

.phone-panel p {
  margin: 0;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

.form-note {
  margin-top: var(--space-5);
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

/* —— Gallery —— */
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.gallery figcaption {
  margin-top: 8px;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

@media (max-width: 640px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}

.pager {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: center;
}

/* —— Footer —— */
.site-footer {
  background: var(--color-footer);
  padding: var(--space-8) 0 var(--space-6);
  border-top: 1px solid var(--color-line);
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.site-footer__brand {
  font-family: var(--font-serif-ja);
  font-size: 1rem;
  color: var(--color-text);
  margin: 0 0 var(--space-3);
}

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

.site-footer__nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__nav li {
  margin-bottom: 8px;
}

.site-footer__copy {
  margin: 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-line);
  font-size: 11px;
}

@media (max-width: 720px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}

/* —— Column slider (simple) —— */
.column-slider {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

@media (max-width: 800px) {
  .column-slider {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: var(--space-4);
    padding-bottom: var(--space-3);
  }
  .column-slider > * {
    flex: 0 0 78%;
    scroll-snap-align: start;
  }
}

/* Utilities */
.u-mt-0 { margin-top: 0; }
.u-mb-5 { margin-bottom: var(--space-5); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

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