/* ===========================
   KOZEKI CLINIC - style.css
   =========================== */

:root {
  --primary: #004a99;
  --primary-dark: #003270;
  --primary-light: #e8f0fb;
  --accent: #c8a45a;
  --text: #1a1a2e;
  --text-light: #555566;
  --text-muted: #888899;
  --bg: #f9f8f6;
  --white: #ffffff;
  --border: #dde3ee;
  --open-color: #004a99;
  --closed-color: #c0c0cc;
  --header-h: 72px;
  --font-serif: 'Noto Serif JP', 'Yu Mincho', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --radius: 4px;
  --shadow: 0 4px 24px rgba(0, 74, 153, 0.08);
  --shadow-hover: 0 8px 32px rgba(0, 74, 153, 0.16);
  --transition: 0.25s ease;
}

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

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

body {
  font-family: var(--font-serif);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.header.scrolled {
  box-shadow: 0 2px 20px rgba(0,74,153,0.10);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}
.header-logo a {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-ja {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.05em;
}
.logo-en {
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.header-nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.header-nav a {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.08em;
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition);
}
.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 1px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.header-nav a:hover { color: var(--primary); }
.header-nav a:hover::after { transform: scaleX(1); }

.btn-reserve {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 9px 18px;
  border-radius: var(--radius);
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-reserve:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,74,153,0.3);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--primary);
  transition: all 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  position: absolute;
  top: 100%; left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
}
.mobile-nav.open {
  max-height: 400px;
  padding: 12px 24px 20px;
}
.mobile-nav-link {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text);
  letter-spacing: 0.05em;
}
.mobile-nav-reserve {
  margin-top: 16px;
  display: block;
  text-align: center;
  background: var(--primary);
  color: var(--white);
  padding: 12px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #f0f4fb 0%, #e8eef8 40%, #f5f3ee 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 70% 30%, rgba(0,74,153,0.06) 0%, transparent 60%),
    radial-gradient(circle at 20% 80%, rgba(200,164,90,0.05) 0%, transparent 50%);
}
/* Decorative vertical lines */
.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 12%;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, rgba(0,74,153,0.12), transparent);
}
.hero::after {
  content: '';
  position: absolute;
  top: 0; right: 18%;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, rgba(0,74,153,0.06), transparent);
}
.hero-deco {
  position: absolute;
  bottom: 15%;
  right: 8%;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(0,74,153,0.1);
  border-radius: 50%;
  pointer-events: none;
}
.hero-deco::before {
  content: '';
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(0,74,153,0.07);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--header-h) + 60px) 24px 80px;
  width: 100%;
}
.hero-sub {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  color: var(--primary);
  margin-bottom: 24px;
  text-transform: uppercase;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 500;
  line-height: 1.55;
  color: var(--text);
  margin-bottom: 28px;
  letter-spacing: 0.03em;
}
.hero-desc {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-light);
  margin-bottom: 48px;
  letter-spacing: 0.05em;
  line-height: 1.9;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

/* Shared Buttons */
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 14px 28px;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,74,153,0.3);
}
.btn-primary.large {
  font-size: 1rem;
  padding: 16px 40px;
}

.btn-tel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  padding: 13px 24px;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn-tel:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}
.scroll-indicator span {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--text-muted);
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: top; opacity: 0.3; }
}

/* ===== FADE IN ANIMATION ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease forwards;
}
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

/* Section appear on scroll */
.appear {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.appear.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== SECTION COMMON ===== */
.section { padding: 100px 0; }
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-label {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.4em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--text);
  margin-bottom: 52px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0;
  width: 48px;
  height: 2px;
  background: var(--primary);
}

/* ===== ABOUT ===== */
.about { background: var(--white); }
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.about-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 36px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.about-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.about-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 20px;
  color: var(--primary);
  opacity: 0.85;
}
.about-icon svg { width: 100%; height: 100%; }
.about-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}
.about-card p {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.85;
  font-weight: 300;
}

/* ===== HOURS ===== */
.hours { background: var(--bg); }
.hours-wrapper {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: start;
}
.hours-table-wrap { overflow-x: auto; }
.hours-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-serif);
  min-width: 480px;
}
.hours-table th, .hours-table td {
  text-align: center;
  padding: 14px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}
.hours-table thead th {
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.08em;
  background: var(--white);
  border-bottom: 2px solid var(--primary);
}
.hours-table .time-label {
  text-align: left;
  font-size: 0.82rem;
  color: var(--text-light);
  white-space: nowrap;
  font-family: var(--font-sans);
  font-weight: 300;
}
.hours-table .open { color: var(--open-color); font-weight: 600; }
.hours-table .closed { color: var(--closed-color); }
.hours-note {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 14px;
  font-weight: 300;
}

.hours-tel-box {
  background: var(--primary);
  color: var(--white);
  padding: 36px 32px;
  border-radius: 2px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 220px;
  text-align: center;
}
.hours-tel-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  opacity: 0.85;
}
.hours-tel-num {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--white);
  white-space: nowrap;
  transition: opacity var(--transition);
}
.hours-tel-num:hover { opacity: 0.8; }
.hours-tel-box .btn-primary {
  background: var(--white);
  color: var(--primary);
  font-size: 0.8rem;
  padding: 10px 20px;
  width: 100%;
}
.hours-tel-box .btn-primary:hover {
  background: #f0f4fb;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

/* ===== DOCTOR ===== */
.doctor { background: var(--white); }
.doctor-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.doctor-img-wrap {
  background: var(--primary-light);
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}
.doctor-img-placeholder {
  color: rgba(0,74,153,0.3);
}
.doctor-img-placeholder svg {
  width: 80px;
  height: 80px;
}
.doctor-info {
  padding: 48px 48px 48px 0;
}
.doctor-title {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.doctor-name {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.name-reading {
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}
.doctor-qualifications {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 28px;
}
.qual-tag {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--primary);
  border: 1px solid var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}
.doctor-bio p {
  font-family: var(--font-serif);
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.95;
  font-weight: 300;
  margin-bottom: 14px;
}

/* ===== ACCESS ===== */
.access { background: var(--bg); }
.access-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 48px;
  align-items: start;
}
.access-block {
  margin-bottom: 28px;
}
.access-block h3 {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
  border-left: 2px solid var(--primary);
  padding-left: 10px;
}
.access-block p {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.85;
  font-weight: 300;
}
.access-tel {
  font-family: var(--font-sans);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--primary);
  letter-spacing: 0.04em;
  transition: opacity var(--transition);
}
.access-tel:hover { opacity: 0.7; }

.btn-map {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-family: var(--font-serif);
  font-size: 0.82rem;
  padding: 10px 20px;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}
.btn-map:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}

.access-map {
  aspect-ratio: 4/3;
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
  background: var(--border);
}
.access-map iframe {
  width: 100%;
  height: 100%;
  display: block;
}

/* ===== CTA SECTION ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 80px 0;
  text-align: center;
}
.cta-sub {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.cta-desc {
  font-family: var(--font-serif);
  font-size: 0.88rem;
  font-weight: 300;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  letter-spacing: 0.05em;
}
.cta-section .btn-primary {
  background: var(--white);
  color: var(--primary);
}
.cta-section .btn-primary:hover {
  background: #f0f4fb;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--text);
  color: rgba(255,255,255,0.7);
  padding: 52px 0 28px;
}
.footer-inner {
  display: flex;
  align-items: flex-start;
  gap: 48px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.footer-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  min-width: 160px;
}
.footer-logo .logo-ja {
  color: var(--white);
  font-size: 1rem;
  font-weight: 500;
}
.footer-logo .logo-en {
  color: rgba(255,255,255,0.4);
  font-size: 0.58rem;
}
.footer-info {
  flex: 1;
  min-width: 200px;
}
.footer-info p {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 300;
  line-height: 2;
}
.footer-info a { color: rgba(255,255,255,0.7); transition: color var(--transition); }
.footer-info a:hover { color: var(--white); }
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 140px;
}
.footer-nav a {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.05em;
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--white); }
.footer-copy {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 300;
  text-align: center;
  color: rgba(255,255,255,0.35);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  letter-spacing: 0.1em;
}

/* ===== UTILITY ===== */
.sp-only { display: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .header-nav { display: none; }
  .btn-reserve { display: none; }
  .hamburger { display: flex; }

  .hours-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hours-tel-box {
    min-width: unset;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

  .doctor-card {
    grid-template-columns: 1fr;
  }
  .doctor-img-wrap {
    aspect-ratio: 16/7;
    min-height: unset;
  }
  .doctor-info {
    padding: 32px 28px;
  }

  .access-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .access-map {
    aspect-ratio: 16/9;
  }
}

@media (max-width: 640px) {
  :root { --header-h: 60px; }

  .section { padding: 72px 0; }

  .hero-content {
    padding: calc(var(--header-h) + 48px) 20px 60px;
  }
  .hero-title { line-height: 1.6; }
  .sp-only { display: inline; }

  .hero-btns { flex-direction: column; align-items: flex-start; gap: 12px; }
  .btn-primary, .btn-tel { width: 100%; text-align: center; justify-content: center; }

  .about-grid { grid-template-columns: 1fr; }
  .about-card { padding: 28px 20px; }

  .hero-deco { display: none; }
  .scroll-indicator { display: none; }

  .section-title { margin-bottom: 36px; }

  .footer-inner { flex-direction: column; gap: 28px; }
  .footer-nav { flex-direction: row; flex-wrap: wrap; gap: 14px; }
}