/* ==========================================================================
   Tokens
   ========================================================================== */
* {
  box-sizing: border-box;
}

:root {
  --white: #ffffff;
  --ink: #1d1d1f;
  --ink-soft: #6e6e73;
  --line: rgba(0, 0, 0, 0.08);
  --line-strong: rgba(0, 0, 0, 0.16);

  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);

  --ease: cubic-bezier(.16, 1, .3, 1);
  --font: -apple-system, BlinkMacSystemFont, "Inter", "Hiragino Sans",
    "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

.container {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  position: relative;
}

/* Subtle film-grain overlay for a premium, tactile finish */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  opacity: 0.025;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Buttons fade up into view on scroll, independent of hover/active transforms */
.btn-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease-out, transform .6s ease-out;
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}

.btn-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal,
  .btn-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .blob {
    animation: none !important;
  }
}

/* ==========================================================================
   Glass utilities
   ========================================================================== */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  box-shadow: var(--glass-shadow);
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color .4s var(--ease), background .4s var(--ease);
}

.site-header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, 0.86);
}

.header-inner {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
}

.logo-main {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--ink);
}

.logo-sub {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--ink-soft);
}

.nav {
  display: flex;
  gap: 36px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
  margin: 0 auto;
}

.nav a {
  position: relative;
  padding: 6px 0;
  transition: color .25s var(--ease);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--ink);
  transition: right .3s var(--ease);
}

.nav a:hover,
.nav a.active {
  color: var(--ink);
}

.nav a:hover::after,
.nav a.active::after {
  right: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.menu-button {
  display: none;
  border: 0;
  background: transparent;
  padding: 8px;
  width: 40px;
  height: 40px;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 20px;
  height: 1.5px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}

.menu-button[aria-expanded="true"] span:first-child {
  transform: translateY(6.5px) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:last-child {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Fullscreen mobile nav */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .4s var(--ease), transform .4s var(--ease), visibility .4s;
}

.mobile-nav.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-nav nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.mobile-nav a {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -.02em;
}

.mobile-nav-cta {
  margin-top: 12px;
  padding: 14px 30px;
  border-radius: 9999px;
  background: #000000;
  color: #ffffff;
  border: 1px solid #000000;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
  font-size: 15px !important;
  font-weight: 600 !important;
  transition: background .25s var(--ease), color .25s var(--ease),
    transform .25s var(--ease), box-shadow .25s var(--ease);
}

.mobile-nav-cta:hover {
  background: #ffffff;
  color: #000000;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
}

.mobile-nav-cta:active {
  transform: scale(0.98);
  transition-duration: .12s;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.button {
  display: inline-flex;
  min-height: 50px;
  padding: 0 26px;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -.01em;
  font-family: inherit;
  cursor: pointer;
  background: #000000;
  color: #ffffff;
  border: 1px solid #000000;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
  transition: background .25s var(--ease), color .25s var(--ease),
    transform .25s var(--ease), box-shadow .25s var(--ease);
  white-space: nowrap;
}

.button:hover {
  background: #ffffff;
  color: #000000;
  border-color: #000000;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
}

.button:active {
  transform: scale(0.98);
  transition-duration: .12s;
}

.button.small {
  min-height: 38px;
  padding: 0 18px;
  font-size: 13px;
}

.button.full {
  width: 100%;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 140px 0 80px;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .5;
}

.blob-a {
  width: 620px;
  height: 620px;
  top: -220px;
  right: -180px;
  background: radial-gradient(circle, rgba(0, 0, 0, .05), transparent 70%);
  animation: float-a 22s ease-in-out infinite;
}

.blob-b {
  width: 520px;
  height: 520px;
  bottom: -220px;
  left: -160px;
  background: radial-gradient(circle, rgba(0, 0, 0, .035), transparent 70%);
  animation: float-b 26s ease-in-out infinite;
}

@keyframes float-a {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-40px, 50px); }
}

@keyframes float-b {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(50px, -40px); }
}

.hero-inner {
  max-width: 880px;
}

.eyebrow {
  margin: 0 0 22px;
  font-size: 12px;
  letter-spacing: .28em;
  font-weight: 600;
  color: var(--ink-soft);
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(46px, 8.5vw, 104px);
  line-height: 1.05;
  letter-spacing: -.045em;
  font-weight: 700;
}

.hero-jp {
  margin: 18px 0 0;
  font-size: 17px;
  font-weight: 500;
  letter-spacing: .01em;
  color: var(--ink-soft);
}

.hero-tagline {
  margin: 14px 0 0;
  font-size: 15px;
  font-weight: 300;
  letter-spacing: .12em;
  color: #5c5c5f;
}

.hero-copy {
  margin: 18px auto 0;
  max-width: 560px;
  font-size: 18px;
  font-weight: 400;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-top: 42px;
}

.hero-pillars {
  margin-top: 90px;
}

.pillars-bar {
  display: flex;
  border-radius: 22px;
  padding: 6px;
  gap: 6px;
}

.pillar {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 22px 14px;
  border-radius: 16px;
  transition: background .3s var(--ease);
}

.pillar:hover {
  background: rgba(255, 255, 255, 0.6);
}

.pillar-index {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--ink-soft);
}

.pillar-name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section {
  padding: 160px 0;
  position: relative;
}

.section-number {
  margin: 0 0 18px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

h2 {
  margin: 0 0 60px;
  font-size: clamp(36px, 5.5vw, 64px);
  line-height: 1.15;
  letter-spacing: -.04em;
  font-weight: 700;
}

.lead {
  font-size: 21px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: -.01em;
}

.section-heading-jp {
  margin: -46px 0 60px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .01em;
  color: var(--ink-soft);
}

.title-with-badge {
  margin-bottom: 44px;
}

.title-with-badge h2 {
  margin-bottom: 16px;
}

.title-with-badge .section-heading-jp {
  margin: -2px 0 16px;
}

p {
  color: var(--ink-soft);
}

.lead,
h1, h2, h3,
.pillar-name,
.card h3 {
  color: var(--ink);
}

/* Profile */
.profile-grid {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 88px;
  align-items: start;
}

.photo-placeholder {
  aspect-ratio: 4 / 5;
  display: grid;
  place-items: center;
  border-radius: 28px;
  color: var(--ink-soft);
  background: var(--white);
  font-size: 12px;
  letter-spacing: .18em;
  border: 1px dashed var(--line-strong);
}

.profile-content p {
  margin-top: 0;
}

.profile-social {
  justify-content: flex-start;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  background: #000000;
  color: #ffffff;
  border: 1px solid #000000;
  transition: background .25s var(--ease), color .25s var(--ease),
    transform .25s var(--ease);
}

.social-links a:hover {
  background: #ffffff;
  color: #000000;
  transform: translateY(-2px);
}

.social-links a:active {
  transform: scale(0.98);
  transition-duration: .12s;
}

.social-icon {
  display: inline-flex;
  flex-shrink: 0;
}

.social-icon svg {
  width: 16px;
  height: 16px;
  display: block;
}

.section-divide {
  border-top: 1px solid var(--line);
}

.section-intro {
  max-width: 640px;
  margin: -28px 0 56px;
  font-size: 18px;
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.card {
  padding: 38px;
  border-radius: 26px;
}

.app-card {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.06);
  transition: transform .5s var(--ease), border-color .5s var(--ease), box-shadow .5s var(--ease);
}

.app-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.09);
}

/* Status indicator — intentionally static (no hover/focus feedback) so it
   can never be mistaken for a clickable button. */
.card-title-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 8px;
}

.card .card-title-row h3 {
  margin: 0;
}

.badge-outline {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  height: 32px;
  padding: 0 16px;
  border-radius: 9999px;
  background: #ffffff;
  color: #000000;
  border: 1px solid #000000;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  cursor: default;
}

.card h3 {
  margin: 30px 0 4px;
  font-size: 36px;
  letter-spacing: -.03em;
  font-weight: 700;
}

.card-subtitle {
  margin: 0 0 26px;
  color: var(--ink);
  font-weight: 600;
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 28px;
}

.feature-list span {
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 12px;
  font-weight: 500;
}

/* Single, wide, centered app card */
.cards.cards-single {
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
}

.card-wide {
  min-height: auto;
  display: block;
  padding: 72px;
}

.card-wide-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: center;
}

.card-wide-aside {
  padding-left: 56px;
  border-left: 1px solid var(--line);
}

.card-wide-aside-label {
  margin: 0 0 22px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--ink-soft);
}

.feature-list-vertical {
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  margin-top: 0;
  padding-top: 0;
}

.feature-list-vertical span {
  width: 100%;
}

/* Web section */
.web-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 72px;
  align-items: start;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 34px 0 0;
}

.check-list li {
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
}

.check-list li::before {
  content: "✓";
  margin-right: 12px;
  color: var(--ink);
  font-weight: 800;
}

.price-card {
  padding: 40px;
  border-radius: 28px;
}

.price-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.price-label {
  margin: 0;
  font-size: 11px;
  color: var(--ink-soft);
  font-weight: 700;
  letter-spacing: .16em;
}

.price-badge {
  flex-shrink: 0;
  padding: 8px 16px;
  border-radius: 9999px;
  background: #ffffff;
  border: 1px solid #111111;
  color: #111111;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  cursor: default;
}

.price-rows {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 22px 0 4px;
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.price-row-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
}

.price-row-value {
  font-size: clamp(28px, 4vw, 34px);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--ink);
}

.price-row-value small {
  margin-left: 3px;
  font-size: 14px;
  font-weight: 700;
}

.price-support-note {
  margin: 16px 0 22px;
  text-align: center;
  font-size: 12.5px;
  font-weight: 400;
  line-height: 1.6;
  color: #777777;
}

.price-support-note + hr {
  margin-top: 0;
}

.price-card hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 30px 0;
}

.works {
  margin-top: 110px;
}

.works-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.works-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.works-head h3 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
}

.works-title-jp {
  margin: 0;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--ink-soft);
}

.works-head span {
  color: var(--ink-soft);
  font-size: 11px;
  letter-spacing: .15em;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.work-item {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  border-radius: 20px;
  background: var(--white);
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  border: 1px dashed var(--line-strong);
  transition: transform .4s var(--ease);
}

.work-item:hover {
  transform: translateY(-4px);
}

.bom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 88px;
}

.bom-grid h2 {
  margin-bottom: 0;
}

.bom-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

/* Contact */
.contact-section {
  text-align: center;
}

.contact-inner {
  max-width: 820px;
}

.contact-inner h2 {
  margin-bottom: 26px;
}

.contact-social {
  justify-content: center;
  margin-top: 40px;
}

/* ==========================================================================
   Sponsor detail modal (PDF viewer)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s var(--ease), visibility .25s;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.pdf-modal-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 96vw;
  height: 95vh;
  max-width: 1600px;
  max-height: 95vh;
  background: #ffffff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: scale(.98) translateY(10px);
  transition: opacity .25s ease-out, transform .25s ease-out;
}

.modal-overlay.open .pdf-modal-panel {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.pdf-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 16px;
  padding: 28px 32px;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.pdf-modal-title {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.pdf-modal-title-main {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--ink);
  overflow-wrap: break-word;
}

.pdf-modal-title-sub {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.pdf-modal-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.pdf-modal-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  white-space: nowrap;
  transition: background .2s var(--ease);
}

.pdf-modal-link:hover {
  background: var(--line);
}

.pdf-modal-body {
  flex: 1;
  min-height: 0;
  background: #f5f5f5;
}

.pdf-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  object-fit: contain;
}

.pdf-fallback-inline {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
  height: 100%;
  padding: 24px;
  text-align: center;
}

.pdf-fallback-inline p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.modal-close {
  position: static;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid #000000;
  background: #000000;
  color: #ffffff;
  font-size: 13px;
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}

.modal-close:hover {
  background: #ffffff;
  color: #000000;
  border-color: #000000;
}

@media (max-width: 640px) {
  .pdf-modal-panel {
    width: 96vw;
    height: 92vh;
    border-radius: 16px;
  }

  .pdf-modal-header {
    align-items: center;
    padding: 16px 16px;
    gap: 10px;
  }

  .pdf-modal-title {
    gap: 4px;
  }

  .pdf-modal-title-main {
    font-size: 14px;
  }

  .pdf-modal-title-sub {
    font-size: 10px;
  }

  .pdf-modal-actions {
    gap: 8px;
  }

  .pdf-modal-link {
    padding: 8px 10px;
    font-size: 12px;
  }

  .modal-close {
    width: 36px;
    height: 36px;
  }
}

@media (max-width: 768px) {
  .pdf-modal-panel {
    width: calc(100vw - 20px);
    height: calc(100vh - 24px);
    height: calc(100dvh - 24px);
    max-width: none;
    max-height: none;
    margin: 12px auto;
    border-radius: 16px;
    overflow: hidden;
  }

  .pdf-modal-header {
    min-height: 96px;
    padding: 18px 16px;
    padding-top: max(18px, env(safe-area-inset-top));
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    flex-shrink: 0;
  }

  .pdf-modal-title {
    flex: 1;
    min-width: 0;
    gap: 4px;
  }

  .pdf-modal-title-main {
    font-size: 14px;
    overflow-wrap: break-word;
  }

  .pdf-modal-title-sub {
    font-size: 10px;
  }

  .pdf-modal-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .pdf-modal-link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 8px 4px;
    font-size: 13px;
    font-weight: 600;
    color: #000000;
    background: transparent;
    white-space: nowrap;
  }

  .modal-close {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 50%;
    background: #000000;
    color: #ffffff;
    flex-shrink: 0;
  }

  .pdf-modal-body {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 12px;
    padding-bottom: max(12px, env(safe-area-inset-bottom));
    background: #f5f5f5;
  }

  .pdf-frame {
    width: 100%;
    height: 100%;
    border: none;
  }
}

/* Footer */
footer {
  padding: 32px 0;
  background: var(--white);
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink-soft);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
  .bom-actions {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    width: 100%;
    margin: 32px auto 0;
  }

  .bom-actions .button {
    width: 85%;
    max-width: 320px;
    text-align: center;
  }
}

@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .header-actions .button.primary {
    display: none;
  }

  .profile-grid,
  .web-grid,
  .bom-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .cards,
  .work-grid {
    grid-template-columns: 1fr;
  }

  .card-wide-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .card-wide-aside {
    padding-left: 0;
    padding-top: 32px;
    border-left: none;
    border-top: 1px solid var(--line);
  }

  .pillars-bar {
    flex-direction: column;
  }

  .pc {
    display: none;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 32px, 1120px);
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero-pillars {
    margin-top: 60px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .button {
    width: 100%;
  }

  .section {
    padding: 100px 0;
  }

  h2 {
    margin-bottom: 40px;
  }

  .card,
  .price-card {
    padding: 28px;
  }

  .app-card {
    min-height: auto;
  }

  .profile-photo {
    max-width: 320px;
    margin: 0 auto;
  }

  .social-links {
    flex-direction: column;
    align-items: stretch;
  }

  .social-links a {
    width: 100%;
    justify-content: center;
    padding: 13px 20px;
  }

  .profile-social {
    flex-direction: row;
    align-items: flex-start;
  }

  .profile-social a {
    width: auto;
    justify-content: flex-start;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .mobile-nav a {
    font-size: 22px;
  }
}

@media (max-width: 768px) {
  .profile-social {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin: 32px auto 0;
  }

  .profile-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 85%;
    max-width: 320px;
  }
}

@media (max-width: 768px) {
  .profile-content .lead {
    text-align: center;
    margin: 0 auto 30px;
  }
}

/* ==========================================================================
   Touch devices only — tap feedback (does not affect PC hover/pointer:fine)
   ========================================================================== */
@media (hover: none) and (pointer: coarse) {
  .button:hover {
    background: #000000;
    color: #ffffff;
    border-color: #000000;
    transform: none;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
  }

  .mobile-nav-cta:hover {
    background: #000000;
    color: #ffffff;
    transform: none;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
  }

  .social-links a:hover {
    background: #000000;
    color: #ffffff;
    transform: none;
  }

  .button:active,
  .mobile-nav-cta:active,
  .social-links a:active {
    transform: scale(0.97);
    opacity: 0.85;
    transition: transform 0.12s ease, opacity 0.12s ease;
  }
}