/*
Theme Name: Nagoya Asian Fest
Theme URI: https://example.com/
Author: Your Name
Description: 名古屋アジアンフェスティバルvol.2 専用テーマ。参考サイトの躍動感あるデザインを再現した、カスタマイザー編集対応のフルビルド型テーマです。
Version: 2.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: nagoya-asian-fest
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
*/

/* ============================================================
   DESIGN TOKENS
   ============================================================
   Color Palette:
   - Primary (祭り赤)   : #96160f
   - Primary Light      : #c2392f
   - Ink (墨色)         : #201a18
   - Paper (生成り)     : #f7f0e4
   - Gold (提灯金)      : #e3a73e
   - Cream (white-ish)  : #fffaf2

   Typography:
   - Display: "Shippori Mincho" (和風・力強い明朝)
   - Body: "Noto Sans JP"
   - Accent/Numerals: "Oswald" (屋台の看板風コンデンス体)
   ============================================================ */

:root {
  --color-primary: #96160f;
  --color-primary-light: #c2392f;
  --color-primary-dark: #6e0f0a;
  --color-ink: #201a18;
  --color-paper: #f7f0e4;
  --color-gold: #e3a73e;
  --color-cream: #fffaf2;
  --color-white: #ffffff;

  --font-display: "Shippori Mincho", serif;
  --font-body: "Noto Sans JP", sans-serif;
  --font-accent: "Oswald", sans-serif;

  --container-width: 1240px;
  --section-padding: 100px;
  --section-padding-mobile: 60px;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
html {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background-color: var(--color-paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover {
  color: var(--color-primary-light);
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  margin: 0;
  line-height: 1.4;
}

p {
  line-height: 1.9;
  margin: 0 0 1em;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* Focus visibility for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  position: relative;
  padding: var(--section-padding) 0;
  overflow: hidden;
}

@media (max-width: 768px) {
  .section {
    padding: var(--section-padding-mobile) 0;
  }
}

/* ============================================================
   SKIP LINK (Accessibility)
   ============================================================ */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 18px;
  z-index: 10000;
  font-family: var(--font-body);
}

.skip-link:focus {
  left: 10px;
  top: 10px;
}

/* ============================================================
   SECTION HEADING (共通見出しスタイル)
   ============================================================ */
.section-heading {
  text-align: center;
  margin-bottom: 60px;
}

.section-heading__eyebrow {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: 14px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
  font-weight: 600;
}

.section-heading__title {
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 700;
  color: var(--color-ink);
  position: relative;
  display: inline-block;
  padding-bottom: 22px;
}

.section-heading__title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 72px;
  height: 5px;
  background-color: var(--color-primary);
  border-radius: 3px;
}

.section-heading__title::before {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background-color: var(--color-gold);
  border-radius: 50%;
  margin-left: 46px;
}

.section-heading__lead {
  max-width: 640px;
  margin: 24px auto 0;
  color: #5a5350;
  font-size: 16px;
}

/* ============================================================
   BUTTONS
   ヒーロー内の全ボタンを統一スタイルで定義
   白枠 / 赤背景 / 白文字、ホバーで白背景・赤文字に反転
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 40px;
  font-family: var(--font-accent);
  font-size: 15px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: 100px;
  border: 2px solid var(--color-cream);
  background-color: var(--color-primary);
  color: var(--color-cream);
  transition: transform 0.3s var(--ease-out-expo), box-shadow 0.3s ease, background-color 0.3s ease, color 0.3s ease;
  cursor: pointer;
}

.btn:hover {
  background-color: var(--color-cream);
  color: var(--color-primary);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 28px rgba(150, 22, 15, 0.35);
}

/* 個別クラスはベースを継承するだけ（外見の差をなくす） */
.btn--primary,
.btn--outline,
.btn--recruit {
  background-color: var(--color-primary);
  color: var(--color-cream);
  border-color: var(--color-cream);
}

.btn--primary:hover,
.btn--outline:hover,
.btn--recruit:hover {
  background-color: var(--color-cream);
  color: var(--color-primary);
  border-color: var(--color-cream);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 28px rgba(150, 22, 15, 0.35);
}

/* ============================================================
   SCROLL ANIMATIONS (data-reveal)
   JSにより .is-visible が付与される
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease-out-expo), transform 0.9s var(--ease-out-expo);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="fade"] {
  transform: none;
}

[data-reveal="left"] {
  transform: translateX(-60px);
}

[data-reveal="left"].is-visible {
  transform: translateX(0);
}

[data-reveal="right"] {
  transform: translateX(60px);
}

[data-reveal="right"].is-visible {
  transform: translateX(0);
}

[data-reveal="scale"] {
  transform: scale(0.85);
}

[data-reveal="scale"].is-visible {
  transform: scale(1);
}

/* 子要素の段階的表示（stagger） */
[data-reveal-group] > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
}

[data-reveal-group].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-group].is-visible > *:nth-child(1) { transition-delay: 0.05s; }
[data-reveal-group].is-visible > *:nth-child(2) { transition-delay: 0.15s; }
[data-reveal-group].is-visible > *:nth-child(3) { transition-delay: 0.25s; }
[data-reveal-group].is-visible > *:nth-child(4) { transition-delay: 0.35s; }
[data-reveal-group].is-visible > *:nth-child(5) { transition-delay: 0.45s; }
[data-reveal-group].is-visible > *:nth-child(6) { transition-delay: 0.55s; }
[data-reveal-group].is-visible > *:nth-child(7) { transition-delay: 0.65s; }
[data-reveal-group].is-visible > *:nth-child(8) { transition-delay: 0.75s; }

/* 動きを抑えたい人向け対応 */
@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-reveal-group] > * {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============================================================
   提灯（ランタン）装飾モチーフ - signature element
   セクション区切りに使用する、のれん風ジグザグディバイダー
   ============================================================ */
.zigzag-divider {
  position: absolute;
  left: 0;
  right: 0;
  height: 32px;
  background-repeat: repeat-x;
  background-size: 48px 32px;
  z-index: 2;
}

.zigzag-divider--top {
  top: -1px;
}

.zigzag-divider--bottom {
  bottom: -1px;
  transform: rotate(180deg);
}