/* ========================================
   de ALBA — Landing Page Stylesheet
   ======================================== */

/* --- Tokens --- */
:root {
  --bg: #faf7f2;
  --text: #3a3228;
  --text-light: #6b6054;
  --text-muted: #9e9487;
  --gold: #c8a97e;
  --gold-dark: #b08f60;
  --gold-light: #e8d8c0;
  --border: #e8e0d4;
  --white: #ffffff;
  --font-script: 'Great Vibes', cursive;
  --font-heading: 'Cormorant Garamond', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --container: 920px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.9;
  font-weight: 300;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font: inherit; }

/* --- Utilities --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
.pc-only { display: inline; }
@media (max-width: 768px) { .pc-only { display: none; } }

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Button --- */
.btn {
  display: inline-block;
  padding: 15px 40px;
  background: var(--gold);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  border-radius: 2px;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.btn:hover {
  background: var(--gold-dark);
  transform: translateY(-1px);
}
.btn-disabled {
  background: var(--border);
  color: var(--text-muted);
  cursor: default;
  pointer-events: none;
}

/* --- Section --- */
.section {
  padding: 100px 0;
}
.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.06em;
  color: var(--text);
  text-align: center;
  margin-bottom: 8px;
}
.heading-accent {
  width: 32px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto 48px;
}

/* ============================
   HERO
   ============================ */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 28px;
  position: relative;
}
.hero-inner {
  max-width: 600px;
}
.hero-logo-img {
  max-width: clamp(240px, 50vw, 400px);
  height: auto;
  display: block;
  margin: 0 auto 20px;
}
.hero-line {
  width: 1px;
  height: 48px;
  background: var(--gold);
  margin: 0 auto 28px;
}
.hero-catch {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 3vw, 1.25rem);
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  color: var(--text);
}
.hero-sub {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 44px;
  letter-spacing: 0.04em;
}

/* ============================
   ABOUT
   ============================ */
.about {
  background: var(--bg);
}
.about-body {
  text-align: center;
  font-size: 0.92rem;
  line-height: 2.2;
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
}

/* ============================
   CONCEPT
   ============================ */
.concept {
  background: var(--white);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.card {
  text-align: center;
  padding: 40px 24px;
  border: 1px solid var(--border);
  border-radius: 2px;
  transition: border-color 0.3s var(--ease);
}
.card:hover {
  border-color: var(--gold);
}
.card-icon {
  width: 36px;
  height: 36px;
  margin: 0 auto 20px;
  color: var(--gold);
}
.card-icon svg {
  width: 100%;
  height: 100%;
}
.card-title {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
  color: var(--text);
}
.card-text {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.9;
}

@media (max-width: 768px) {
  .card-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 400px;
    margin: 0 auto;
  }
}

/* ============================
   MENU
   ============================ */
.menu {
  background: var(--bg);
}
.menu-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: 720px;
  margin: 0 auto;
}
.menu-group-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 500;
  font-style: italic;
  color: var(--gold);
  margin-bottom: 14px;
  letter-spacing: 0.06em;
}
.menu-list li {
  font-size: 0.82rem;
  color: var(--text-light);
  padding: 6px 0;
  border-bottom: 1px dotted var(--border);
}
.menu-list li:last-child {
  border-bottom: none;
}
.menu-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 48px;
}

@media (max-width: 768px) {
  .menu-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 24px;
  }
}
@media (max-width: 480px) {
  .menu-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    max-width: 280px;
  }
}

/* ============================
   SUPPORT
   ============================ */
.support {
  background: var(--white);
  text-align: center;
}
.support-body {
  font-size: 0.92rem;
  line-height: 2.2;
  color: var(--text-light);
  max-width: 520px;
  margin: 0 auto 44px;
}

/* ============================
   SNS
   ============================ */
.sns {
  background: var(--bg);
  text-align: center;
}
.sns-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  letter-spacing: 0.04em;
}
.sns-links {
  display: flex;
  justify-content: center;
  gap: 40px;
}
.sns-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-light);
  transition: color 0.3s var(--ease);
}
.sns-link:hover {
  color: var(--gold);
}
.sns-link svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* ============================
   CONTACT
   ============================ */
.contact {
  background: var(--white);
  text-align: center;
}
.contact-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}
.contact-form {
  max-width: 480px;
  margin: 0 auto 24px;
  text-align: left;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-light);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 2px;
  outline: none;
  transition: border-color 0.3s var(--ease);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  font-size: 0.82rem;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--gold);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.contact-form .btn {
  width: 100%;
  text-align: center;
  border: none;
  font-family: var(--font-body);
  cursor: pointer;
}
.contact-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 16px;
}
.contact-thanks {
  font-size: 0.95rem;
  color: var(--gold-dark);
  padding: 40px 0;
  line-height: 2;
}

/* ============================
   FOOTER
   ============================ */
.site-footer {
  padding: 48px 0;
  text-align: center;
}
.footer-line {
  width: 100%;
  height: 1px;
  background: var(--gold-light);
  margin-bottom: 48px;
}
.footer-logo-img {
  max-width: 160px;
  height: auto;
  display: block;
  margin: 0 auto 12px;
}
.footer-copy {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }
  .hero {
    padding: 80px 24px;
  }
}