/*
Theme Name: Re'ink
Theme URI:
Description: Re'ink Tattoo Studio — Omotesando Tokyo
Author: kishi1997
Version: 1.0.0
Text Domain: re-ink
*/

/* ============================
   CUSTOM PROPERTIES
============================ */
:root {
  --color-bg: #ffffff;
  --color-bg-s: #f6f6f6;
  --color-bg-alt: #eeeeee;
  --color-bg-card: #e5e5e5;
  --color-text: #1a1a1a;
  --color-sub: #888888;
  --color-muted: #aaaaaa;
  --color-accent: #1a1a1a;
  --color-accent-l: #555555;
  --color-border: #d8d8d8;
  --font-en: "Yu Mincho", "YuMincho", "游明朝", serif;
  --font-ja: "Yu Mincho", "YuMincho", "游明朝", serif;
  --max-w: 1200px;
  --nav-h: 72px;
  --sec-pad: 120px;
  --t: all 0.4s ease;
}

/* ============================
   RESET & BASE
============================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-ja);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--t);
}

ul {
  list-style: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}

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

/* ============================
   FADE-IN
============================ */
.fi {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

.fi.on {
  opacity: 1;
  transform: translateY(0);
}

.fi-d1 {
  transition-delay: 0.1s;
}
.fi-d2 {
  transition-delay: 0.2s;
}
.fi-d3 {
  transition-delay: 0.3s;
}
.fi-d4 {
  transition-delay: 0.4s;
}

/* ============================
   SECTION HEADER
============================ */
.sec-head {
  margin-bottom: 72px;
}

.sec-en {
  display: block;
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 0.28em;
  color: var(--color-accent);
  text-transform: lowercase;
  margin-bottom: 10px;
}

.sec-title {
  font-family: var(--font-ja);
  font-size: clamp(18px, 2.2vw, 26px);
  font-weight: 300;
  letter-spacing: 0.14em;
  color: var(--color-text);
  margin-bottom: 20px;
}

.sec-line {
  width: 36px;
  height: 1px;
  background: var(--color-accent);
}

.sec-head.center {
  text-align: center;
}

.sec-head.center .sec-line {
  margin: 0 auto;
}

/* ============================
   BUTTONS
============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 16px;
  font-family: var(--font-en);
  font-weight: 300;
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: var(--t);
  white-space: nowrap;
  border: none;
}

.btn-outline {
  border: 1px solid var(--color-text);
  color: var(--color-text);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-text);
  color: var(--color-bg);
}

.btn-ghost {
  border: 1px solid rgba(26, 26, 26, 0.3);
  color: rgba(26, 26, 26, 0.7);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-gold {
  background: var(--color-accent);
  color: var(--color-bg);
  border: 1px solid var(--color-accent);
}

.btn-gold:hover {
  background: var(--color-accent-l);
  border-color: var(--color-accent-l);
}

.btn-outline-gold {
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  background: transparent;
}

.btn-outline-gold:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn-dark {
  background: var(--color-text);
  color: #ffffff;
  border: 1px solid var(--color-text);
}

.btn-dark:hover {
  background: #555555;
  border-color: #555555;
}

/* ============================
   HEADER / NAV
============================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition:
    background 0.5s ease,
    border-color 0.5s ease;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  border-bottom-color: var(--color-border);
  backdrop-filter: blur(8px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 8px 48px;
}

.nav-logo {
  min-width: 56px;
}
.nav-logo img {
  height: 72px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-links a {
  font-size: 14px;
  letter-spacing: 0.15em;
  color: rgba(26, 26, 26, 0.7);
  font-weight: 300;
  text-transform: uppercase;
}

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

.nav-btn {
  font-size: 16px;
  letter-spacing: 0.18em;
  padding: 9px 20px;
  border: 1px solid rgba(26, 26, 26, 0.4);
  color: rgba(26, 26, 26, 0.85);
  background: transparent;
  cursor: pointer;
  font-family: var(--font-en);
  font-weight: 300;
  transition: var(--t);
  white-space: nowrap;
}

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

.nav-btn-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-btn .nav-reserve-text {
  font-size: 10px;
  letter-spacing: 0.16em;
}
.nav-btn.nav-reserve.nav-instagram {
  background: rgba(80, 80, 80, 0.82);
  border-color: rgba(80, 80, 80, 0.4);
  color: #ffffff;
}
.nav-btn.nav-reserve.nav-instagram:hover {
  background: rgba(50, 50, 50, 0.95);
  border-color: rgba(50, 50, 50, 0.6);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.22);
}

.nav-btn.nav-reserve {
  width: 104px;
  height: 104px;
  padding: 0;
  border: 1px solid rgba(26, 26, 26, 0.16);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  color: var(--color-text);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  line-height: 1;
  text-transform: uppercase;
  transition:
    transform 0.35s ease,
    background 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}

.nav-btn.nav-reserve:hover {
  transform: translateY(-2px);
  background: #fff;
  border-color: rgba(26, 26, 26, 0.32);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.16);
}

.nav-reserve-icon {
  width: 25px;
  height: 25px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-reserve-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-reserve-text {
  padding-left: 0.22em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--color-text);
  transition: var(--t);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  display: block;
  padding: 18px 0;
  font-size: 16px;
  letter-spacing: 0.15em;
  color: var(--color-sub);
  text-align: center;
  text-transform: uppercase;
  width: 100%;
  border-bottom: 1px solid var(--color-border);
  max-width: 260px;
}

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

.mobile-nav .btn {
  margin-top: 32px;
  color: var(--color-text);
  border-color: var(--color-text);
}

/* ============================
   FOOTER (共通)
============================ */
.footer {
  background: var(--color-bg-s);
  border-top: 1px solid var(--color-border);
  padding: 80px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(280px, 2fr) minmax(160px, 1fr) minmax(
      160px,
      1fr
    );
  gap: 48px;
  margin-bottom: 56px;
}

.footer-nav {
  padding: 56px 0;
  border-bottom: 1px solid var(--color-border);
}

.footer-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-left: 1px solid var(--color-border);
}

.footer-nav-col {
  border-right: 1px solid var(--color-border);
  padding: 0 32px;
}

.footer-nav-heading {
  font-family: var(--font-en);
  font-size: 16px;
  letter-spacing: 0.28em;
  color: var(--color-accent);
  text-transform: uppercase;
  font-weight: 300;
  padding: 0 0 14px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0;
}

.footer-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 16px;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.05em;
  font-weight: 300;
  transition:
    color 0.3s ease,
    padding-left 0.3s ease;
}

.footer-nav-link:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-nav-arrow {
  color: var(--color-muted);
  font-size: 16px;
  flex-shrink: 0;
  transition: color 0.3s ease;
}

.footer-nav-link:hover .footer-nav-arrow {
  color: var(--color-accent);
}

.footer-map {
  height: 340px;
  overflow: hidden;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.footer-map iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: none;
  display: block;
}

.footer-info {
  padding: 64px 0;
  border-bottom: 1px solid var(--color-border);
}

.footer-info-inner {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 80px;
  align-items: start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.footer-brand img {
  height: 72px;
  width: auto;
  object-fit: contain;
}

.footer-addr {
  font-size: 12px;
  color: var(--color-sub);
  line-height: 2;
  letter-spacing: 0.04em;
}

.footer-col-title {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 20px;
  font-weight: 300;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 12px;
  color: var(--color-sub);
  letter-spacing: 0.06em;
  font-weight: 300;
}

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

.footer-sns {
  display: flex;
  gap: 12px;
}

.footer-sns-link {
  width: 34px;
  height: 34px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 11px;
  text-decoration: none;
  transition:
    border-color 0.3s,
    color 0.3s;
}

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

.footer-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 64px;
}

.footer-detail-full {
  grid-column: 1 / -1;
}

.footer-dt {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--color-accent);
  text-transform: uppercase;
  font-weight: 300;
  display: block;
  margin-bottom: 8px;
}

.footer-dd {
  font-size: 16px;
  color: var(--color-sub);
  line-height: 1.9;
  font-weight: 300;
}

.footer-dd a {
  color: var(--color-sub);
  text-decoration: underline;
}

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

.footer-notes {
  border-top: 1px solid var(--color-border);
  padding: 28px 0;
}

.footer-notes-list {
  display: grid;
  gap: 8px;
  max-width: 920px;
}

.footer-notes-list li {
  font-size: 13px;
  color: var(--color-sub);
  letter-spacing: 0.05em;
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: 0.08em;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: 0.08em;
}

.footer-legal a:hover {
  color: var(--color-sub);
}

/* ============================
   RESPONSIVE (共通)
============================ */
@media (max-width: 1024px) {
  .nav {
    padding: 8px 24px;
  }
  .nav-btn.nav-reserve {
    width: 88px;
    height: 88px;
    gap: 7px;
    font-size: 13px !important;
  }
  .nav-reserve-icon {
    width: 22px;
    height: 22px;
  }
  .footer-nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-info-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .nav-links {
    gap: 12px;
  }

  .nav-links a {
    font-size: 13px;
  }
  .nav-links,
  .nav-btn-wrap {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-h: 60px;
    --sec-pad: 64px;
  }
  .container {
    padding: 0 24px;
  }
  .footer-nav-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-map {
    height: 260px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .footer-nav-grid {
    grid-template-columns: 1fr;
  }
  .footer-map {
    height: 220px;
  }
}

@media (min-width: 769px) {
  .nav-btn.nav-reserve,
  .footer-addr,
  .footer-col-title,
  .footer-links a,
  .footer-sns-link,
  .footer-dt,
  .footer-notes-list li,
  .footer-copy,
  .footer-legal a {
    font-size: 16px;
  }
}