/* ============================================================
   TukuriE LP — style.css
   Design: Natural Modern / Earth Tone / Digital Craft
   ============================================================ */

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

:root {
  /* Colors */
  --c-bg:          #faf8f4;
  --c-bg-warm:     #f4f0e8;
  --c-bg-deep:     #ede8de;
  --c-surface:     #ffffff;
  --c-text:        #333333;
  --c-text-mid:    #5a5751;
  --c-text-light:  #8c8880;
  --c-accent:      #8a6f3e;    /* warm amber-brown */
  --c-accent-deep: #6b5430;
  --c-accent-soft: #c4a97a;
  --c-sage:        #6b7b5e;    /* sage green */
  --c-sage-light:  #e8ede3;
  --c-border:      #ddd8cc;
  --c-shadow:      rgba(80, 65, 40, 0.08);

  /* Typography */
  --ff-serif:   'Noto Serif JP', 'Georgia', serif;
  --ff-sans:    'Noto Sans JP', 'Helvetica Neue', sans-serif;
  --ff-latin:   'Inter', sans-serif;

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   2rem;
  --space-lg:   4rem;
  --space-xl:   7rem;
  --space-xxl:  10rem;

  /* Layout */
  --max-w:       1160px;
  --max-w-narrow: 740px;

  /* Transition */
  --ease-out:  cubic-bezier(0.22, 1, 0.36, 1);
  --dur:       0.4s;
}

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

body {
  font-family: var(--ff-sans);
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul, ol { list-style: none; }

address { font-style: normal; }

strong { font-weight: 500; color: var(--c-accent-deep); }

/* ── Scroll reveal ─────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Container ─────────────────────────────────────────────── */
.container {
  width: min(100%, var(--max-w));
  margin-inline: auto;
  padding-inline: clamp(1.5rem, 5vw, 3rem);
}
.container--narrow {
  width: min(100%, var(--max-w-narrow));
  margin-inline: auto;
  padding-inline: clamp(1.5rem, 5vw, 3rem);
}

/* ── Section common ────────────────────────────────────────── */
.section {
  padding-block: var(--space-xl);
}

.section-label {
  font-family: var(--ff-latin);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--ff-serif);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--c-text);
  margin-bottom: var(--space-md);
}

.section-lead {
  font-size: 1rem;
  color: var(--c-text-mid);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 100px;
  font-family: var(--ff-sans);
  font-size: 0.925rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--dur) var(--ease-out);
  white-space: nowrap;
  border: none;
  line-height: 1;
}

.btn-primary {
  background: var(--c-accent);
  color: #fff;
  box-shadow: 0 4px 24px rgba(138, 111, 62, 0.25);
}
.btn-primary:hover {
  background: var(--c-accent-deep);
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(138, 111, 62, 0.32);
}

.btn-ghost {
  background: transparent;
  color: var(--c-text);
  border: 1.5px solid var(--c-border);
}
.btn-ghost:hover {
  border-color: var(--c-accent-soft);
  color: var(--c-accent);
  transform: translateY(-2px);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.15rem 2.5rem;
  background: var(--c-accent);
  color: #fff;
  border-radius: 100px;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  box-shadow: 0 6px 36px rgba(138, 111, 62, 0.22);
  transition: all var(--dur) var(--ease-out);
  border: none;
  cursor: pointer;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}
.btn-cta:hover {
  background: var(--c-accent-deep);
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(138, 111, 62, 0.3);
}
.btn-cta__note {
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.8;
  letter-spacing: 0.02em;
}
.btn-cta__arrow {
  flex-shrink: 0;
  transition: transform var(--dur) var(--ease-out);
}
.btn-cta:hover .btn-cta__arrow {
  transform: translateX(4px);
}

/* ── Tags ──────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  background: var(--c-sage-light);
  color: var(--c-sage);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.04em;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.2rem 0;
  transition: background var(--dur) var(--ease-out),
              box-shadow var(--dur) var(--ease-out),
              padding var(--dur) var(--ease-out);
}
.site-header.scrolled {
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 0.8rem 0;
  box-shadow: 0 1px 0 var(--c-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, var(--max-w));
  margin-inline: auto;
  padding-inline: clamp(1.5rem, 5vw, 3rem);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--c-text);
  transition: color var(--dur) var(--ease-out);
}
.logo:hover { color: var(--c-accent); }
.logo-mark {
  display: flex;
  color: var(--c-accent);
}
.logo-text {
  font-family: var(--ff-latin);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}
.logo--footer .logo-text { color: var(--c-bg); }
.logo--footer .logo-mark { color: var(--c-accent-soft); }

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.main-nav a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--c-text-mid);
  letter-spacing: 0.05em;
  transition: color var(--dur) var(--ease-out);
}
.main-nav a:hover { color: var(--c-accent); }

.nav-cta-btn {
  padding: 0.55rem 1.4rem !important;
  background: var(--c-accent) !important;
  color: #fff !important;
  border-radius: 100px;
  font-weight: 500 !important;
  transition: background var(--dur) var(--ease-out), transform var(--dur) var(--ease-out) !important;
}
.nav-cta-btn:hover {
  background: var(--c-accent-deep) !important;
  transform: translateY(-1px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--c-text);
  border-radius: 2px;
  transition: all var(--dur) var(--ease-out);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(250, 248, 244, 0.97);
  backdrop-filter: blur(20px);
  z-index: 99;
  padding: 6rem 2rem 2rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1.4rem;
  font-family: var(--ff-serif);
  color: var(--c-text);
  letter-spacing: 0.05em;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100svh;
  display: grid;
  place-content: center;
  position: relative;
  overflow: hidden;
  background: var(--c-bg);
  padding-block: 8rem 6rem;
}

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

/* Wood grain texture via CSS */
.hero-wood-texture {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      92deg,
      transparent,
      transparent 40px,
      rgba(180, 150, 100, 0.04) 40px,
      rgba(180, 150, 100, 0.04) 41px
    ),
    repeating-linear-gradient(
      178deg,
      transparent,
      transparent 80px,
      rgba(160, 130, 80, 0.03) 80px,
      rgba(160, 130, 80, 0.03) 82px
    );
}

.hero-grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.6;
}

/* Radial warm glow */
.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -5%;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196, 169, 122, 0.18) 0%, transparent 65%);
  z-index: 0;
  animation: heroGlow 8s ease-in-out infinite alternate;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(107, 123, 94, 0.12) 0%, transparent 65%);
  z-index: 0;
}

@keyframes heroGlow {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(-2%, 3%) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  padding-inline: clamp(1.5rem, 5vw, 3rem);
  margin-inline: auto;
}

.hero-eyebrow {
  font-family: var(--ff-latin);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--c-accent-soft);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--c-accent-soft);
}

.hero-headline {
  font-family: var(--ff-serif);
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 300;
  line-height: 1.3;
  letter-spacing: 0.03em;
  color: var(--c-text);
  margin-bottom: 1.8rem;
}
.hero-headline em {
  font-style: normal;
  color: var(--c-accent);
  position: relative;
}
.hero-headline em::after {
  content: '';
  position: absolute;
  bottom: 0.05em;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent-soft), transparent);
  border-radius: 2px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--c-text-mid);
  line-height: 1.85;
  margin-bottom: 3rem;
  letter-spacing: 0.04em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Decorative chips */
.hero-deco {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}
.deco-chip {
  position: absolute;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-family: var(--ff-latin);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  border: 1px solid var(--c-border);
  color: var(--c-text-light);
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(8px);
  animation: floatChip 6s ease-in-out infinite;
}
.deco-chip--1 { top: 15%; right: 8%; animation-delay: 0s; }
.deco-chip--2 { top: 24%; right: 15%; animation-delay: 1.5s; }
.deco-chip--3 { top: 33%; right: 6%; animation-delay: 3s; }
.deco-chip--4 { top: 42%; right: 13%; animation-delay: 4.5s; }
.deco-chip--5 { top: 52%; right: 9%; animation-delay: 1s; }
.deco-chip--6 { top: 62%; right: 15%; animation-delay: 2.5s; }
.deco-chip--7 { top: 71%; right: 7%; animation-delay: 4s; }
.deco-chip--8 { top: 80%; right: 14%; animation-delay: 5.5s; }

@keyframes floatChip {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 1;
}
.scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--c-accent-soft));
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
.scroll-label {
  font-family: var(--ff-latin);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--c-text-light);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  background: var(--c-surface);
}

.about-body {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  margin-bottom: var(--space-lg);
}

.about-body p {
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 1.95;
  color: var(--c-text-mid);
  letter-spacing: 0.03em;
}

.about-lead {
  font-family: var(--ff-serif);
  font-size: clamp(1.2rem, 2.2vw, 1.4rem) !important;
  font-weight: 500;
  color: var(--c-accent) !important;
  margin-top: 0.8rem;
  letter-spacing: 0.05em;
}

/* Responsive utilities */
@media (max-width: 768px) {
  .pc-only { display: none !important; }
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ============================================================
   WORKSHOP BANNER
   ============================================================ */
.workshop-banner {
  width: 100%;
  overflow: hidden;
  position: relative;
}

.workshop-banner__link {
  display: block;
  position: relative;
  width: 100%;
  overflow: hidden;
}

.workshop-banner__img-wrap {
  width: 100%;
  overflow: hidden;
  background: var(--c-bg-deep); /* fallback before img loads */
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Placeholder shown when image fails or is missing */
.workshop-banner__img-wrap.img-placeholder {
  background: linear-gradient(
    135deg,
    var(--c-bg-warm) 0%,
    var(--c-bg-deep) 50%,
    var(--c-bg-warm) 100%
  );
  position: relative;
}
.workshop-banner__img-wrap.img-placeholder::after {
  content: 'images/workshop.jpg を設置してください';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-latin);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--c-text-light);
  text-transform: uppercase;
}

.workshop-banner__img {
  width: 100%;
  height: auto;
  display: block;
}

.workshop-banner__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2.5rem clamp(1.5rem, 5vw, 3rem);
  background: linear-gradient(to top, rgba(40, 30, 15, 0.65) 0%, transparent 100%);
  display: flex;
  align-items: center;
  gap: 1.2rem;
  color: #fff;
  pointer-events: none;
}

.workshop-banner__label {
  font-family: var(--ff-latin);
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  opacity: 0.7;
  text-transform: uppercase;
}

.workshop-banner__text {
  font-family: var(--ff-serif);
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  flex: 1;
}

.workshop-banner__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.4);
  transition: border-color var(--dur) var(--ease-out),
              background var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out);
}
.workshop-banner__link:hover .workshop-banner__arrow {
  border-color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.15);
  transform: translateX(4px);
}

/* ============================================================
   FEATURES
   ============================================================ */
.features {
  background: var(--c-bg-warm);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 2.5vw, 1.5rem);
  margin-bottom: var(--space-md);
}

@media (max-width: 960px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card {
  background: var(--c-surface);
  border-radius: 16px;
  overflow: hidden;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
  /* display:block for <a> elements */
  display: block;
  color: inherit;
  text-decoration: none;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--c-shadow);
}

/* Image area at top of card */
.feature-card__img-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--c-bg-deep);
  position: relative;
  flex-shrink: 0;
}
.feature-card__img-wrap.img-placeholder {
  background: linear-gradient(135deg, var(--c-bg-warm) 0%, var(--c-bg-deep) 100%);
}
/* subtle shimmer pattern when no image */
.feature-card__img-wrap.img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 20px,
      rgba(180, 150, 100, 0.06) 20px,
      rgba(180, 150, 100, 0.06) 21px
    );
}
.feature-card__img-wrap.img-placeholder::after {
  content: attr(data-label);
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  font-family: var(--ff-latin);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--c-text-light);
  text-transform: uppercase;
  opacity: 0.7;
}

.feature-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.6s var(--ease-out);
}
.feature-card:hover .feature-card__img {
  transform: scale(1.05);
}

/* Body (text area) below image */
.feature-card__body {
  padding: clamp(1.4rem, 3vw, 1.8rem);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--c-bg-warm);
  color: var(--c-accent);
  margin-bottom: 1.1rem;
  transition: background var(--dur) var(--ease-out);
}
.feature-card__icon--highlight {
  background: rgba(138, 111, 62, 0.12);
}
.feature-card:hover .feature-card__icon {
  background: rgba(138, 111, 62, 0.14);
}

.feature-card__title {
  font-family: var(--ff-serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--c-text);
  margin-bottom: 0.7rem;
  letter-spacing: 0.03em;
}

.feature-card__desc {
  font-size: 0.87rem;
  color: var(--c-text-mid);
  line-height: 1.8;
  margin-bottom: 0.9rem;
}

.feature-card__list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1.1rem;
}
.feature-card__list li {
  font-size: 0.8rem;
  color: var(--c-text-light);
  padding-left: 1rem;
  position: relative;
}
.feature-card__list li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--c-accent-soft);
}

/* note link label at bottom of card */
.feature-card__note-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--ff-latin);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  opacity: 0.85;
  transition: opacity var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out);
}
.feature-card:hover .feature-card__note-link {
  opacity: 1;
  transform: translateX(3px);
}

.features-note {
  font-size: 0.8rem;
  color: var(--c-text-light);
  text-align: center;
  letter-spacing: 0.04em;
}


/* ============================================================
   HOW TO USE
   ============================================================ */
.how-to-use {
  background: var(--c-surface);
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: none;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 0 2rem;
  position: relative;
  padding-bottom: 3rem;
}
.step:last-child { padding-bottom: 0; }

.step-number {
  font-family: var(--ff-latin);
  font-size: 3rem;
  font-weight: 300;
  line-height: 1;
  color: var(--c-bg-deep);
  letter-spacing: -0.02em;
  padding-top: 0.1rem;
  text-align: right;
  transition: color var(--dur) var(--ease-out);
}
.step:hover .step-number {
  color: var(--c-accent-soft);
}

.step-content {
  padding-top: 0.1rem;
}

.step-title {
  font-family: var(--ff-serif);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--c-text);
  margin-bottom: 0.6rem;
  letter-spacing: 0.03em;
}

.step-desc {
  font-size: 0.93rem;
  color: var(--c-text-mid);
  line-height: 1.85;
}

/* Connector line */
.step-connector {
  position: absolute;
  left: 80px;
  top: 2.2rem;
  width: 1px;
  bottom: 0;
  background: linear-gradient(to bottom, var(--c-border), transparent);
  margin-left: -0.5px;
}

/* ============================================================
   CALENDAR
   ============================================================ */
.calendar-section {
  background: var(--c-bg-warm);
}

.calendar-wrapper {
  display: flex;
  justify-content: center;
}

.calendar-placeholder {
  width: 100%;
  max-width: 860px;
  aspect-ratio: 16 / 9;
  background: var(--c-surface);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Subtle inner outline instead of hard border */
  box-shadow: inset 0 0 0 1px var(--c-border),
              0 4px 24px var(--c-shadow);
  overflow: hidden;
}

.calendar-placeholder__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  padding: 2rem;
  color: var(--c-text-light);
}

.calendar-placeholder__icon {
  opacity: 0.45;
}

.calendar-placeholder__text {
  font-family: var(--ff-latin);
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-text-mid);
  letter-spacing: 0.06em;
}

.calendar-placeholder__sub {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--c-text-light);
}

/* When a real Google Calendar iframe is embedded: */
.calendar-wrapper iframe {
  width: 100%;
  max-width: 860px;
  min-height: 480px;
  border-radius: 16px;
  border: none;
  box-shadow: 0 4px 24px var(--c-shadow);
}

/* ============================================================
   CTA
   ============================================================ */
.cta-section {
  background: var(--c-bg-deep);
  position: relative;
  overflow: hidden;
}

/* subtle decorative arc */
.cta-section::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 200%;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(196, 169, 122, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-eyebrow {
  font-family: var(--ff-latin);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: var(--c-accent-soft);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.cta-title {
  font-family: var(--ff-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 300;
  line-height: 1.4;
  color: var(--c-text);
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
}

.cta-desc {
  font-size: 0.95rem;
  color: var(--c-text-mid);
  line-height: 1.85;
  margin-bottom: 2.5rem;
  max-width: 480px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--c-text);  /* #333 deep warm gray */
  color: rgba(250, 248, 244, 0.7);
  padding-block: var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: var(--space-md);
}

.footer-brand .footer-tagline {
  font-family: var(--ff-serif);
  font-size: 0.9rem;
  color: rgba(250, 248, 244, 0.45);
  margin-top: 1rem;
  letter-spacing: 0.06em;
}

.footer-info__heading {
  font-family: var(--ff-latin);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--c-accent-soft);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer-address p,
.footer-info > p {
  font-size: 0.85rem;
  line-height: 1.8;
  color: rgba(250, 248, 244, 0.7);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  font-size: 0.85rem;
  color: rgba(250, 248, 244, 0.6);
  transition: color var(--dur) var(--ease-out);
}
.footer-link:hover { color: var(--c-accent-soft); }

.footer-bottom {
  display: flex;
  justify-content: center;
}
.footer-copyright {
  font-size: 0.78rem;
  color: rgba(250, 248, 244, 0.35);
  letter-spacing: 0.04em;
  font-family: var(--ff-latin);
}

/* ── SNS Links ─────────────────────────────────────────────── */
.footer-sns {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  padding-block: var(--space-md);
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: var(--space-md);
}

.footer-sns__label {
  font-family: var(--ff-latin);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--c-accent-soft);
  text-transform: uppercase;
}

.footer-sns__links {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.sns-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.6rem 1.3rem;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(250, 248, 244, 0.7);
  font-family: var(--ff-latin);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  transition: background var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out),
              color var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out);
}
.sns-btn:hover {
  transform: translateY(-2px);
}

/* LINE ブランドカラー：#06C755 */
.sns-btn--line:hover {
  background: rgba(6, 199, 85, 0.15);
  border-color: rgba(6, 199, 85, 0.5);
  color: #4dde91;
}

/* Instagram グラデーション → ピンク系 */
.sns-btn--instagram:hover {
  background: rgba(225, 48, 108, 0.12);
  border-color: rgba(225, 48, 108, 0.4);
  color: #f07ab0;
}

/* note ブランドカラー：#41C9B4 */
.sns-btn--note:hover {
  background: rgba(65, 201, 180, 0.12);
  border-color: rgba(65, 201, 180, 0.4);
  color: #6de0cc;
}


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 700px) {
  :root {
    --space-xl: 5rem;
    --space-xxl: 7rem;
  }

  .main-nav { display: none; }
  .hamburger { display: flex; }

  .hero-headline { font-size: clamp(2rem, 10vw, 3.2rem); }

  .deco-chip { display: none; }

  .step {
    grid-template-columns: 60px 1fr;
    gap: 0 1.2rem;
  }
  .step-number { font-size: 2.2rem; }
  .step-connector { left: 60px; }

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

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .btn { width: auto; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header, .hero-scroll-hint, .hero-deco { display: none; }
  .section { padding-block: 2rem; }
}