/* Dream Promotion Inc. — yellow / black minimal (Studio reference) */

:root {
  --yellow: #ffeb3b;
  --yellow-deep: #ffe600;
  --paper: #ffffff;
  --ink: #000000;
  --font-serif: "Roboto Slab", "Noto Serif JP", serif;
  --font-sans: "Noto Sans JP", system-ui, sans-serif;
  --header-h: 4.5rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --space: clamp(1.5rem, 4vw, 4rem);
  --space-lg: clamp(3rem, 8vw, 6.5rem);
}

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

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
  background: var(--yellow);
}

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

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration: underline;
}

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

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: var(--yellow);
  z-index: 10000;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--yellow);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space);
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-logo {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(0.95rem, 2.2vw, 1.15rem);
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.site-logo:hover {
  text-decoration: none;
  opacity: 0.75;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-contact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--ink);
  background: transparent;
  transition: background 0.2s, color 0.2s;
}

.btn-contact:hover {
  background: var(--ink);
  color: var(--yellow);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--ink);
  background: transparent;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  position: relative;
  transition: transform 0.25s var(--ease), opacity 0.2s;
}

.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-lines::before {
  top: -6px;
}

.nav-toggle-lines::after {
  top: 6px;
}

.site-header.nav-open .nav-toggle-lines {
  background: transparent;
}

.site-header.nav-open .nav-toggle-lines::before {
  top: 0;
  transform: rotate(45deg);
}

.site-header.nav-open .nav-toggle-lines::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-drawer {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--yellow);
  padding: var(--space);
  z-index: 199;
}

.nav-drawer[hidden] {
  display: none;
}

.nav-drawer nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-drawer a {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.5rem;
  text-decoration: none;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-drawer a:hover {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .nav-toggle {
    display: inline-flex;
  }
}

/* Blocks */
.block {
  padding: var(--space-lg) var(--space);
}

.block-inner {
  max-width: 860px;
  margin: 0 auto;
}

.prose-wide {
  max-width: 720px;
}

.block--hero {
  min-height: 100vh;
  min-height: 100dvh;
  padding-top: calc(var(--header-h) + var(--space-lg));
  padding-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  background: var(--yellow);
}

.hero-inner {
  width: 100%;
}

.hero-display {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(3.25rem, 14vw, 8.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: none;
}

.hero-line {
  display: block;
}

.hero-tagline {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  font-size: clamp(1rem, 2.8vw, 1.2rem);
  font-weight: 500;
  max-width: 28em;
}

.block--yellow {
  background: var(--yellow);
}

.block--paper {
  background: var(--paper);
}

.block-title {
  margin: 0 0 clamp(1.25rem, 3vw, 2rem);
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.prose p {
  margin: 0 0 1.25em;
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  font-weight: 400;
}

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

.outline-list {
  margin: 0;
}

.outline-list > div {
  display: grid;
  gap: 0.25rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

.outline-list > div:first-child {
  padding-top: 0;
}

.outline-list dt {
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.outline-list dd {
  margin: 0;
  font-size: 0.98rem;
}

.service-sub {
  margin: 0 0 0.75rem;
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  font-weight: 700;
}

.service-lead {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  max-width: 40em;
}

.service-photo {
  margin: 0;
}

.service-photo img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.block--contact {
  padding-bottom: calc(var(--space-lg) + 3rem);
}

.contact-layout {
  max-width: 920px;
  margin: 0 auto;
  display: grid;
  gap: var(--space-lg);
}

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

.contact-lead {
  margin: 0 0 1rem;
  font-size: 0.98rem;
}

.contact-address {
  font-style: normal;
  font-weight: 600;
}

.contact-form {
  border: 1px solid rgba(0, 0, 0, 0.15);
  padding: var(--space);
  background: var(--paper);
}

.field {
  margin-bottom: 1rem;
}

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  letter-spacing: 0.04em;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  font: inherit;
  border: 1px solid var(--ink);
  background: var(--paper);
  border-radius: 0;
}

.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.btn-submit {
  margin-top: 0.5rem;
  width: 100%;
  padding: 0.85rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  color: var(--yellow);
  background: var(--ink);
  border: 1px solid var(--ink);
  transition: opacity 0.2s;
}

.btn-submit:hover {
  opacity: 0.88;
}

.form-status {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  min-height: 1.25em;
}

/* Footer */
.site-footer {
  background: var(--paper);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  padding: 1.25rem var(--space);
}

.footer-inner {
  max-width: 1440px;
  margin: 0 auto;
}

.footer-copy {
  margin: 0;
  font-size: 0.8rem;
}

/* Floating social */
.social-float {
  position: fixed;
  right: var(--space);
  bottom: var(--space);
  z-index: 150;
  display: flex;
  gap: 0.5rem;
}

.social-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  background: transparent;
  color: var(--ink);
  line-height: 1;
  transition: background 0.2s, color 0.2s;
}

.social-btn--ig {
  padding: 0;
}

.social-ig-svg {
  width: 22px;
  height: 22px;
  display: block;
}

.social-btn:hover {
  background: var(--ink);
  color: var(--yellow);
  text-decoration: none;
}

@media (max-width: 480px) {
  .social-float {
    right: 0.75rem;
    bottom: 0.75rem;
  }

  .social-btn {
    width: 38px;
    height: 38px;
    font-size: 0.75rem;
  }
}