/* ========================================
   基礎樣式
======================================== */
body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
  line-height: 1.5;
  font-weight: 300;
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  letter-spacing: 0.02em;
  font-weight: 400;
  transform: scaleY(0.85);
}

p {
  margin-bottom: 1.35em;
}
/*狀態變化漸入效果*/
a {
  transition: color var(--ease), opacity var(--ease), border-color var(--ease);
}

.section__tag {
  display: block;
  margin-bottom: 20px;
  color: var(--color-yellow);
  font-size: var(--font-size-xs);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-weight: 400;
}

.section__title {
  margin-bottom: 44px;
  font-size: var(--font-size-display-md);
  color: var(--color-black);
}


/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: var(--header-height);
  padding: 0 5%;
  background: var(--color-white);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(197, 160, 89, 0.1);
  transition: background var(--ease);
}

.header.is-scrolled {
  background: var(--color-white);
}

.header__logo {
  display: flex;
  align-items: center;
  line-height: 0;
  opacity: 0.95;
}

.header__logo img {
  height: 56px;
  width: auto;
}

.header__nav-list {
  display: flex;
  gap: 36px;
}

.header__nav-list a {
  color: var(--color-black);
  font-size: var(--font-size-sm);
  letter-spacing: 0.14em;
}

.header__nav-list a:hover {
  color: var(--color-brown);
}

.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
}

.header__menu-btn span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-accent);
  transition: var(--ease);
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  z-index: 999;
  width: 280px;
  height: 100vh;
  padding: 100px 40px 40px;
  background: var(--color-deepgreen);
  border-left: 1px solid rgba(197, 160, 89, 0.15);
  transition: right 0.35s ease;
}

.mobile-nav.is-open {
  right: 0;
}

.mobile-nav ul {
  padding-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.mobile-nav a {
  color: var(--color-yellow2);
  font-size: var(--font-size-md);
  letter-spacing: 0.12em;
}

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


.header__cta {
  padding: 9px 22px;
  border: 1px solid var(--color-brown);
  color: var(--color-brown);
  font-size: var(--font-size-sm-cta);
  letter-spacing: 0.16em;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.header__cta:hover {
  background: var(--color-brown);
  border-color: var(--color-brown);
  color: var(--color-yellow2);
}

.mobile-nav .header__cta {
  color: var(--color-brown);
}


/* Footer */
.footer {
  padding: 120px 10% 52px;
  background: var(--color-white);

}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 56px;
  margin-bottom: 72px;
}

.footer__logo {
  display: inline-block;
  margin-bottom: 20px;
  line-height: 0;
}

.footer__logo img {
  height: 40px;
  width: auto;
}

.footer__totem {
  display: block;
  width: min(120px, 100%);
  height: auto;
  margin-top: 40px;
}

.footer__col h3 {
  margin-bottom: 8px;
  color: var(--color-black);
  text-transform: uppercase;

}

.footer__col p,
.footer__col a {
  display: block;
  margin-bottom: 12px;
  color: var(--color-black);
  font-size: var(--font-size-base);
  font-weight: 300;

}

.footer__col a:hover {
  color: var(--color-brown);
}

.footer__copyright {
  padding-top: 40px;
  color: var(--color-black);
  font-size: var(--font-size-xs-plus);
  letter-spacing: 0.04em;
  text-align: center;
  font-weight: 300;
}


/* ========================================
   元件
======================================== */
/* Go Top */
.gotop {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-brown);
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-brown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--ease), visibility var(--ease), transform var(--ease), background var(--ease), color var(--ease);
}

.gotop.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.gotop:hover {
  background: var(--color-brown);
  color: var(--color-white);
}


/* ========================================
   共用 RWD
======================================== */
@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .header__nav-list {
    display: none;
  }

  .header>.header__cta {
    display: none;
  }

  .header__logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }

  .header__menu-btn {
    display: flex;
    margin-left: auto;
  }
}

@media (max-width: 600px) {
  :root {
    --section-padding-y: 110px;
    --section-padding-x: 6%;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}