/*
Theme Name: Saikai Shop
Theme URI: https://shop-test.saikai-tsujidou.com/
Description: 出前寿司「彩海」のカスタムECサイトテーマ。WooCommerce完全対応。POSシステム統合。
Author: Saikai Shop Development Team
Author URI: https://github.com/tdf0603123-blip/saikai-shop
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: saikai-shop
Domain Path: /languages
Tags: e-commerce, woocommerce, food, restaurant, pos-system, responsive

A unified WordPress theme for sushi delivery e-commerce with WooCommerce and POS system integration.
*/

/* ===================================================================
   基本変数と設定
   =================================================================== */

:root {
    /* 色定義 */
    --primary-color: #d32f2f;
    --secondary-color: #e8b04e;
    --accent-color: #2c5f7c;
    --text-color: #333;
    --text-light: #666;
    --background-color: #fff;
    --background-light: #f5f5f5;
    --border-color: #ddd;
    --border-light: #efefef;
    
    /* フォント */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Helvetica Neue', Arial, sans-serif, 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', Meiryo;
    
    /* レイアウト */
    --site-max-width: 1200px;
    --site-padding: 20px;
    
    /* スペーシング */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

/* ===================================================================
   リセット・基本スタイル
   =================================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

/* WordPress管理バー対応 */
.admin-bar {
    margin-top: 32px;
}

@media screen and (max-width: 782px) {
    .admin-bar {
        margin-top: 46px;
    }
}

/* ===================================================================
   コンテナ・レイアウト
   =================================================================== */

.container {
    max-width: var(--site-max-width);
    margin: 0 auto;
    padding: 0 var(--site-padding);
}

.wrapper {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

/* ===================================================================
   ヘッダー
   =================================================================== */

.site-header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    padding: var(--spacing-md) 0;
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 3rem;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
}

.site-title a {
    color: var(--primary-color);
    text-decoration: none;
}

.site-description {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
}

.custom-logo {
    max-width: 100%;
    height: auto;
}

/* ===================================================================
   ナビゲーション
   =================================================================== */

.main-navigation {
    display: flex;
    align-items: center;
    flex: 1;
}

.main-navigation .nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    color: var(--text-color);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    display: block;
    transition: all 0.3s ease;
}

.main-navigation a:hover,
.main-navigation li.current-menu-item a {
    color: var(--primary-color);
    background-color: var(--background-light);
}

/* サブメニュー */
.main-navigation ul ul {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    flex-direction: column;
    gap: 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    min-width: 200px;
    display: none;
    z-index: 999;
}

.main-navigation li:hover > ul {
    display: flex;
}

.main-navigation ul ul li a {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.main-navigation ul ul li:last-child a {
    border-bottom: none;
}

/* レスポンシブメニュー */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .main-navigation {
        flex: none;
    }
    
    .main-navigation .nav-menu {
        display: none;
        flex-direction: column;
        gap: 1rem;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        padding: 1rem;
        width: 100%;
    }
    
    .main-navigation .nav-menu.active {
        display: flex;
    }
    
    .main-navigation ul ul {
        position: static;
        box-shadow: none;
        display: none;
        background: var(--background-light);
    }
    
    .main-navigation li:hover > ul {
        display: none;
    }
    
    .main-navigation li.menu-item-has-children > a::after {
        content: ' ▸';
    }
}

/* ===================================================================
   メインコンテンツ
   =================================================================== */

.site-content {
    padding: var(--spacing-2xl) 0;
    flex: 1;
}

.content-area {
    max-width: var(--site-max-width);
    margin: 0 auto;
    padding: 0 var(--site-padding);
}

/* ===================================================================
   フッター
   =================================================================== */

.site-footer {
    background-color: #f5f5f5;
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-2xl);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-widget {
    text-align: left;
}

.footer-widget h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.footer-widget ul {
    list-style: none;
}

.footer-widget li {
    margin-bottom: var(--spacing-sm);
}

.footer-widget a {
    color: var(--text-light);
}

.footer-widget a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-light);
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ===================================================================
   レスポンシブ
   =================================================================== */

@media (max-width: 768px) {
    :root {
        --site-padding: 15px;
    }
    
    .header-main {
        gap: 1rem;
    }
    
    .site-title {
        font-size: 1.4rem;
    }
    
    .site-content {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    :root {
        --site-padding: 10px;
    }
    
    .site-title {
        font-size: 1.2rem;
    }
}