/* ========================================
   風花 (Fuka) Flower Shop - Main Stylesheet
   ======================================== */

/* === Google Fonts Import === */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Klee+One:wght@400;600&family=Raleway:wght@300;400;500&display=swap');

/* === CSS Variables === */
:root {
  --color-bg:          #faf9f7;
  --color-bg-dark:     #1a1814;
  --color-text:        #2c2825;
  --color-text-light:  #7a736b;
  --color-text-muted:  #a89e93;
  --color-accent:      #8c6e5a;
  --color-accent-light:#c4a882;
  --color-accent-pale: #f0e8de;
  --color-border:      #e2d9ce;
  --color-white:       #ffffff;
  --color-overlay:     rgba(26, 24, 20, 0.55);

  --font-serif-en:     'Cormorant Garamond', 'Georgia', serif;
  --font-serif-jp:     'Klee One', 'Yu Mincho', 'YuMincho', serif;
  --font-sans:         'Raleway', 'Helvetica Neue', sans-serif;

  --nav-height:        72px;
  --transition:        0.35s ease;
  --radius:            2px;
  --shadow:            0 4px 24px rgba(44, 40, 37, 0.10);
  --shadow-hover:      0 8px 40px rgba(44, 40, 37, 0.18);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

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

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

ul, ol { list-style: none; }

/* === Typography === */
.en { font-family: var(--font-serif-en); }
.sans { font-family: var(--font-sans); }

.section-label {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.8rem;
}

.section-title {
  font-family: var(--font-serif-en);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.section-title-jp {
  font-family: var(--font-serif-jp);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 300;
  letter-spacing: 0.12em;
  color: var(--color-text);
}

.section-subtitle {
  font-family: var(--font-serif-jp);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
  line-height: 1.9;
}

/* === Layout === */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
}

.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

/* === Navigation === */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(26, 24, 20, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-nav.scrolled {
  box-shadow: 0 2px 20px rgba(44, 40, 37, 0.08);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
}

.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-logo .logo-jp {
  font-family: var(--font-serif-jp);
  font-size: 1.45rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: rgba(255,255,255,0.88);
}

.nav-logo .logo-en {
  font-family: var(--font-serif-en);
  font-size: 0.62rem;
  font-weight: 300;
  letter-spacing: 0.32em;
  color: rgba(255,255,255,0.38);
  font-style: italic;
  margin-top: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.4rem;
}

.nav-links a {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  position: relative;
  padding-bottom: 3px;
}

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

.nav-links a:hover,
.nav-links a.active {
  color: rgba(255,255,255,0.95);
}

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

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 36px;
  height: 36px;
  cursor: pointer;
  gap: 6px;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: rgba(255,255,255,0.75);
  transition: all var(--transition);
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Menu */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 999;
  flex-direction: column;
  padding: 2.5rem clamp(1.25rem, 5vw, 3rem);
  gap: 0;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-mobile.open {
  transform: translateX(0);
}

.nav-mobile a {
  font-family: var(--font-serif-jp);
  font-size: 1.2rem;
  font-weight: 300;
  letter-spacing: 0.14em;
  color: var(--color-text);
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-mobile a::after {
  content: '→';
  font-family: var(--font-serif-en);
  font-size: 0.9rem;
  color: var(--color-accent);
}

.nav-mobile a:first-child {
  border-top: 1px solid var(--color-border);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.9rem 2.2rem;
  border: 1px solid currentColor;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-text);
  color: var(--color-white);
  border-color: var(--color-text);
}

.btn-primary:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

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

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

.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
}

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

/* === Reservation Buttons === */
.reservation-bar {
  background: var(--color-accent-pale);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 1.8rem 0;
}

.reservation-bar .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.reservation-bar .bar-label {
  font-family: var(--font-serif-jp);
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.14em;
  color: var(--color-text-light);
  white-space: nowrap;
}

.btn-tel {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif-jp);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  padding: 0.75rem 1.6rem;
  background: var(--color-text);
  color: var(--color-white);
  border: 1px solid var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-tel:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.btn-tel svg { flex-shrink: 0; }

.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif-jp);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  padding: 0.75rem 1.6rem;
  background: #06C755;
  color: var(--color-white);
  border: 1px solid #06C755;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-line:hover {
  background: #05a847;
  border-color: #05a847;
  color: var(--color-white);
}

.btn-line svg { flex-shrink: 0; }

/* === Divider === */
.divider {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 2rem 0;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.divider-icon {
  font-size: 0.9rem;
  color: var(--color-accent);
}

/* === Section Header === */
.section-header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header .ornament {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-accent);
  margin: 1.2rem auto;
}

/* === Footer === */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.55);
  padding: clamp(3rem, 6vw, 5rem) 0 2rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo-jp {
  font-family: var(--font-serif-jp);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: rgba(255,255,255,0.85);
  display: block;
}

.footer-brand .logo-en {
  font-family: var(--font-serif-en);
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.35);
  font-style: italic;
  margin-top: 4px;
  display: block;
}

.footer-brand p {
  font-size: 0.78rem;
  line-height: 1.9;
  margin-top: 1.2rem;
  letter-spacing: 0.04em;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1.2rem;
}

.footer-col ul li {
  margin-bottom: 0.7rem;
}

.footer-col ul li a {
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: rgba(255,255,255,0.9);
}

.footer-col address {
  font-style: normal;
  font-size: 0.8rem;
  line-height: 2;
  letter-spacing: 0.04em;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: rgba(255,255,255,0.25);
}

/* === Page Hero === */
.page-hero {
  padding: calc(var(--nav-height) + 4rem) 0 4rem;
  background: var(--color-accent-pale);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 40%, rgba(196, 168, 130, 0.12) 0%, transparent 60%);
}

.page-hero .section-label { margin-bottom: 0.6rem; }
.page-hero .section-title { margin-bottom: 0.5rem; }
.page-hero .section-title-jp {
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
  margin-top: 0.4rem;
}

/* === Scroll Fade Animation === */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Delay classes */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* === Responsive === */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-mobile { display: flex; }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 600px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .reservation-bar .container {
    flex-direction: column;
    gap: 1rem;
  }

  .reservation-bar .bar-label {
    text-align: center;
  }

  .btn-tel,
  .btn-line {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}