/* ===================================
   PinP Studio JAPAN - Global Styles
   =================================== */

/* --- CSS Variables --- */
:root {
  --color-black: #0a0a0a;
  --color-dark: #111111;
  --color-dark-gray: #1a1a1a;
  --color-mid-gray: #2c2c2c;
  --color-gray: #555555;
  --color-light-gray: #999999;
  --color-silver: #cccccc;
  --color-off-white: #f5f4f0;
  --color-white: #ffffff;
  --color-accent: #c8a882;
  --color-accent-light: #e8d5bc;
  --color-accent-deep: #a07850;
  --color-sakura: #e8c4c0;

  --font-serif-ja: 'Noto Serif JP', 'ヒラギノ明朝 ProN', serif;
  --font-sans-ja: 'Noto Sans JP', 'ヒラギノ角ゴ ProN', sans-serif;
  --font-en: 'Cormorant Garamond', 'Playfair Display', serif;
  --font-en-sans: 'Montserrat', sans-serif;

  --transition-slow: 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-mid: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-fast: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);

  --max-width: 1280px;
  --section-padding: 120px 0;
  --section-padding-sm: 80px 0;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-black);
  color: var(--color-off-white);
  font-family: var(--font-sans-ja);
  line-height: 1.8;
  overflow-x: hidden;
}

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

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

ul, ol { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 48px;
}

.section-padding { padding: var(--section-padding); }
.section-padding-sm { padding: var(--section-padding-sm); }
.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.text-light { color: var(--color-light-gray); }
.text-white { color: var(--color-white); }

/* --- Typography --- */
.label-en {
  font-family: var(--font-en-sans);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.05em;
  color: var(--color-white);
}

.section-title-en {
  font-family: var(--font-en);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--color-white);
}

.section-subtitle {
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 2.1;
  letter-spacing: 0.07em;
  color: var(--color-light-gray);
}

.section-header {
  margin-bottom: 72px;
}

.section-header .label-en {
  display: block;
  margin-bottom: 16px;
}

.section-header .section-title {
  margin-bottom: 24px;
}

.divider-line {
  width: 48px;
  height: 1px;
  background: var(--color-accent);
  margin: 24px 0;
}

.divider-line.center { margin: 24px auto; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px 40px;
  font-family: var(--font-en-sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all var(--transition-mid);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-black);
}

.btn-primary:hover {
  background: var(--color-accent-deep);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.25);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

/* --- Navigation --- */
.global-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0 48px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-mid), backdrop-filter var(--transition-mid);
}

.global-nav.scrolled {
  background: rgba(10, 10, 10, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}

.nav-logo {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-logo-main {
  font-family: var(--font-en);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-white);
  line-height: 1;
}

.nav-logo-sub {
  font-family: var(--font-en-sans);
  font-size: 0.5rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-family: var(--font-en-sans);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-silver);
  transition: color var(--transition-fast);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-mid);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta-btn {
  padding: 11px 26px;
  background: transparent;
  border: 1px solid rgba(200, 168, 130, 0.55);
  color: var(--color-accent);
  font-family: var(--font-en-sans);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  display: inline-block;
}

.nav-cta-btn:hover {
  background: var(--color-accent);
  color: var(--color-black);
  border-color: var(--color-accent);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 26px;
  height: 1px;
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.nav-hamburger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  height: 0;
  background: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(20px);
  overflow: hidden;
  transition: height var(--transition-mid);
  z-index: 999;
}

.nav-mobile-menu.open {
  height: calc(100vh - 72px);
}

.nav-mobile-links {
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.nav-mobile-links li {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-mobile-links li a {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 24px 0;
  font-family: var(--font-serif-ja);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-white);
}

.nav-mobile-links li a .mobile-en {
  font-family: var(--font-en-sans);
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  color: var(--color-accent);
  text-transform: uppercase;
}

.nav-mobile-cta {
  margin-top: 40px;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-dark);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 80px 0 40px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 64px;
  margin-bottom: 64px;
}

.footer-brand .footer-logo-main {
  font-family: var(--font-en);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 4px;
}

.footer-brand .footer-logo-sub {
  font-family: var(--font-en-sans);
  font-size: 0.5rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.footer-brand p {
  font-size: 0.8rem;
  color: var(--color-light-gray);
  line-height: 2;
  letter-spacing: 0.04em;
}

.footer-nav h4,
.footer-contact h4 {
  font-family: var(--font-en-sans);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav ul li a {
  font-size: 0.82rem;
  color: var(--color-light-gray);
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
}

.footer-nav ul li a:hover {
  color: var(--color-white);
}

.footer-contact p {
  font-size: 0.82rem;
  color: var(--color-light-gray);
  letter-spacing: 0.04em;
  margin-bottom: 10px;
  line-height: 1.9;
}

.footer-contact a {
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

.footer-contact a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  font-family: var(--font-en-sans);
  font-size: 0.62rem;
  color: var(--color-gray);
  letter-spacing: 0.1em;
}

/* --- Footer Instagram --- */
.footer-sns {
  margin-top: 20px;
}

.footer-sns-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-light-gray);
  font-family: var(--font-en-sans);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-sns-link:hover {
  color: var(--color-white);
}

.footer-sns-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* --- Strengths category label --- */
.strength-cat-label {
  font-family: var(--font-en-sans);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #e8722a;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.9s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* --- CTA Section --- */
.cta-section {
  padding: 120px 0;
  background: var(--color-dark-gray);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 72px;
  background: linear-gradient(to bottom, transparent, var(--color-accent));
}

.cta-section .label-en {
  display: block;
  margin-bottom: 16px;
}

.cta-section .section-title {
  margin-bottom: 20px;
}

.cta-section .section-subtitle {
  max-width: 480px;
  margin: 0 auto 48px;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

/* --- Page Header --- */
.page-header {
  padding: 160px 0 80px;
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
}

.page-header-deco {
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,168,130,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent) 50%, transparent 100%);
  opacity: 0.4;
}

.page-header .label-en {
  display: block;
  margin-bottom: 16px;
}

.page-header .section-title-en {
  margin-bottom: 20px;
}

.page-header .section-subtitle {
  max-width: 540px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .container { padding: 0 32px; }
  :root { --section-padding: 96px 0; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 48px; }
  .footer-brand { grid-column: 1 / -1; }
  .global-nav { padding: 0 32px; }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 72px 0;
    --section-padding-sm: 56px 0;
  }
  .container { padding: 0 24px; }
  .global-nav { padding: 0 24px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .section-header { margin-bottom: 48px; }
  .cta-section { padding: 80px 0; }
  .cta-buttons { flex-direction: column; align-items: stretch; max-width: 280px; margin: 0 auto; }
  .page-header { padding: 120px 0 64px; }
  .page-header-deco { width: 200px; height: 200px; }
}

@media (max-width: 480px) {
  .container { padding: 0 20px; }
}