/* ============================================================
   Rev Creative LP — main.css
   カスタム CSS 変数・アニメーション・コンポーネント固有スタイル
   Tailwind ユーティリティは cdn.tailwindcss.com が担当
   ============================================================ */

:root {
  --base:     #F8F6F1;
  --navy:     #1F2D4A;
  --green:    #2EBE9A;
  --coral:    #E8765A;
  --slate:    #4A5468;
  --border:   #E5E1D8;
  --basedark: #EFEBE0;
}

/* --- Base --- */
html { scroll-behavior: smooth; }

body {
  background: var(--base);
  color: var(--slate);
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5 {
  font-feature-settings: "palt";
  letter-spacing: 0.02em;
}

/* --- Scroll reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* --- Header --- */
#site-header {
  transition: background 0.3s, backdrop-filter 0.3s;
}
#site-header.scrolled {
  background: rgba(248, 246, 241, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

/* --- Mobile drawer --- */
#drawer {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Tabs --- */
.tab-btn.active {
  background: var(--navy);
  color: #F8F6F1;
}

/* --- Accordion --- */
.acc-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.acc-content.open {
  max-height: 600px;
}
.acc-icon {
  transition: transform 0.3s;
}
.acc-item.open .acc-icon {
  transform: rotate(45deg);
}

/* --- Modals --- */
.modal-overlay {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.modal-box {
  transform: translateY(20px) scale(0.97);
  transition: transform 0.25s;
}
.modal-overlay.open .modal-box {
  transform: none;
}

/* --- Focus ring (accessibility) --- */
*:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

/* --- Hamburger --- */
.hb span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.hb.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hb.open span:nth-child(2) { opacity: 0; }
.hb.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* --- wp_nav_menu inner list (ヘッダーナビ) --- */
#site-header nav > ul {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
#site-header nav > ul li a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--navy);
  text-decoration: none;
  transition: color 0.15s;
}
#site-header nav > ul li a:hover { color: var(--green); }