/*
Theme Name: 大島医院
Theme URI: https://example.com
Author: Osmates
Description: 地域医院向けシンプルWordPressテーマ（高齢者対応：文字サイズ切替・ダークモード対応）
Version: 1.0.0
Text Domain: oshima-clinic
*/

/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
    /* Colors - Light Mode */
    --color-primary: #131540;
    --color-primary-light: #2a2d6e;
    --color-primary-dark: #0a0b20;
    --color-accent: #4a54c7;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f8;
    --color-border: #e0e0e0;
    --color-white: #ffffff;

    /* Font Sizes */
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-h1: 2rem;
    --font-size-h2: 1.75rem;
    --font-size-h3: 1.5rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Layout */
    --max-width: 1200px;
    --header-height: 80px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Dark Mode */
[data-theme="dark"] {
    --color-primary: #4a54c7;
    --color-primary-light: #6b74d9;
    --color-primary-dark: #131540;
    --color-text: #e0e0e0;
    --color-text-light: #b0b0b0;
    --color-bg: #1a1a2e;
    --color-bg-alt: #252545;
    --color-border: #3a3a5a;
}

/* Font Size Modes */
[data-font-size="small"] {
    --font-size-base: 14px;
    --font-size-small: 12px;
    --font-size-large: 16px;
    --font-size-h1: 1.75rem;
    --font-size-h2: 1.5rem;
    --font-size-h3: 1.25rem;
}

[data-font-size="large"] {
    --font-size-base: 20px;
    --font-size-small: 18px;
    --font-size-large: 22px;
    --font-size-h1: 2.5rem;
    --font-size-h2: 2rem;
    --font-size-h3: 1.75rem;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
    font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section:nth-child(even) {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-size: var(--font-size-h2);
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    background-color: var(--color-primary);
    color: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: var(--max-width);
    margin: 0 auto;
}

.site-title {
    font-size: var(--font-size-h3);
    font-weight: bold;
}

.site-title a {
    color: var(--color-white);
}

.site-title a:hover {
    color: var(--color-white);
    opacity: 0.9;
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.main-nav a {
    color: var(--color-white);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: background-color var(--transition-fast);
}

.main-nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

/* Accessibility Controls */
.accessibility-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.accessibility-btn {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    cursor: pointer;
    font-size: var(--font-size-small);
    transition: background-color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 4px;
    height: 44px;
    padding: 0 var(--spacing-sm);
}

.accessibility-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

.accessibility-btn.active {
    background: rgba(255, 255, 255, 0.3);
}

.font-size-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 0 var(--spacing-sm);
    font-weight: bold;
    min-width: 110px;
    justify-content: center;
    height: 44px;
}

.font-size-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
}

.font-size-toggle .toggle-icon {
    font-size: 1.2em;
    margin-right: 4px;
}

.font-size-mobile-label {
    display: none;
}

.font-size-mobile-label-expand {
    display: none;
    font-size: var(--font-size-small);
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ... (rest of file) ... */

/* Small Mobile (< 400px) */
@media (max-width: 399px) {
    .font-size-toggle .toggle-icon {
        display: none;
    }

    .font-size-mobile-label {
        display: none;
    }

    .font-size-mobile-label-expand {
        display: inline;
    }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    background: linear-gradient(rgba(19, 21, 64, 0.7), rgba(19, 21, 64, 0.7)), url('images/main-hero.jpg');
    background-size: cover;
    background-position: center top;
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h2 {
    font-size: var(--font-size-h1);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: var(--font-size-large);
    opacity: 0.95;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ==========================================================================
   Hours Section (診療時間)
   ========================================================================== */
.hours-table {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-collapse: collapse;
    background-color: var(--color-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.hours-table th,
.hours-table td {
    padding: var(--spacing-sm);
    text-align: center;
    border: 1px solid var(--color-border);
}

.hours-table th {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 500;
}

.hours-table td {
    background-color: var(--color-bg);
}

.hours-table .closed {
    color: #cc0000;
}

.hours-table .open {
    color: #009900;
}

.hours-note {
    width: 100%;
    max-width: 800px;
    margin: var(--spacing-md) auto 0;
    text-align: left;
    color: var(--color-text-light);
    font-size: var(--font-size-small);
}

.hours-note p {
    margin-bottom: var(--spacing-xs);
}

/* ==========================================================================
   Doctor Section (院長紹介)
   ========================================================================== */
.doctor-profile {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    max-width: 900px;
    margin: 0 auto;
}

.doctor-image {
    flex-shrink: 0;
    width: 200px;
    height: 250px;
    background-color: var(--color-bg-alt);
    border-radius: 8px;
    overflow: hidden;
}

.doctor-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.doctor-info h3 {
    font-size: var(--font-size-h3);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.doctor-info .position {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.doctor-info .specialty {
    color: var(--color-accent);
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-xs);
}

.doctor-info .additional-titles {
    color: var(--color-text-light);
    font-size: var(--font-size-small);
    line-height: 1.8;
    margin-bottom: var(--spacing-xs);
}

.doctor-info .additional-titles:last-of-type {
    margin-bottom: var(--spacing-md);
}

.doctor-info .message {
    line-height: 2;
}

.doctor-career {
    margin-top: var(--spacing-md);
}

.doctor-career h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.doctor-career ul {
    list-style: none;
    padding-left: var(--spacing-sm);
}

.doctor-career li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.doctor-career li::before {
    content: "・";
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* 院長挨拶 */
.doctor-greeting {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.greeting-title {
    font-size: var(--font-size-large);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    text-align: center;
}

.greeting-content {
    max-width: 800px;
    margin: 0 auto;
}

.greeting-content p {
    margin-bottom: var(--spacing-md);
    line-height: 2;
    text-align: justify;
}

.greeting-signature {
    text-align: right !important;
    font-weight: bold;
    color: var(--color-primary);
    margin-top: var(--spacing-lg);
}

/* ==========================================================================
   News Section (お知らせ)
   ========================================================================== */
.news-list {
    max-width: 800px;
    margin: 0 auto;
}

.news-item {
    display: block;
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
    color: inherit;
}

.news-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    color: inherit;
}

.news-date {
    display: block;
    color: var(--color-text-light);
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-xs);
}

.news-title {
    font-size: var(--font-size-large);
    color: var(--color-primary);
}

.news-more {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 4px;
    font-weight: 500;
    transition: background-color var(--transition-fast);
}

.btn:hover {
    background-color: var(--color-primary-light);
    color: var(--color-white);
}

/* ==========================================================================
   Access Section (アクセス)
   ========================================================================== */
.access-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.access-info {
    background-color: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.access-info h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-h3);
}

.access-info dl {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

.access-info dt {
    font-weight: bold;
    color: var(--color-primary);
    margin-top: var(--spacing-sm);
}

.access-info dt:first-child {
    margin-top: 0;
}

.access-info dd {
    margin: 0;
}

.access-map {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.access-map iframe {
    width: 100%;
    height: 100%;
    min-height: 300px;
    border: none;
}

/* ==========================================================================
   Patient Notice (患者さんへのお願い)
   ========================================================================== */
.notice-section {
    padding: var(--spacing-md) 0;
}

.patient-notice {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: 8px;
}

.patient-notice h3 {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.patient-notice p {
    font-size: var(--font-size-small);
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ==========================================================================
   Phone FAB (スマートフォン用電話ボタン)
   ========================================================================== */
.phone-fab {
    display: none;
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 56px;
    height: 56px;
    background-color: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.phone-fab:hover {
    color: var(--color-white);
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.phone-fab svg {
    width: 24px;
    height: 24px;
}

@media (max-width: 768px) {
    .phone-fab {
        display: flex;
    }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
}

.footer-info {
    margin-bottom: var(--spacing-md);
}

.footer-info p {
    margin-bottom: var(--spacing-xs);
    opacity: 0.9;
}

.footer-nav {
    margin-bottom: var(--spacing-md);
}

.footer-nav a {
    color: var(--color-white);
    opacity: 0.8;
    font-size: var(--font-size-small);
    transition: opacity var(--transition-fast);
}

.footer-nav a:hover {
    opacity: 1;
    color: var(--color-white);
}

.copyright {
    font-size: var(--font-size-small);
    opacity: 0.7;
}

/* ==========================================================================
   News Archive & Single
   ========================================================================== */
.page-header {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
}

.page-header h1 {
    font-size: var(--font-size-h1);
}

.news-archive-list {
    max-width: 800px;
    margin: var(--spacing-xl) auto;
    padding: 0 var(--spacing-md);
}

.news-single {
    max-width: 800px;
    margin: var(--spacing-xl) auto;
    padding: 0 var(--spacing-md);
}

.news-single-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.news-single-header h1 {
    font-size: var(--font-size-h2);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.news-single-content {
    line-height: 2;
}

.news-single-content p {
    margin-bottom: var(--spacing-md);
}

.back-link {
    margin-top: var(--spacing-xl);
    text-align: center;
}

/* ==========================================================================
   404 Error Page
   ========================================================================== */
.error-404 {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--color-bg-alt);
}

.error-content {
    text-align: center;
    max-width: 500px;
}

.error-code {
    font-size: 8rem;
    font-weight: bold;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.error-title {
    font-size: var(--font-size-h2);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.error-message {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.error-actions {
    margin-top: var(--spacing-lg);
}

/* ==========================================================================
   Page Content (固定ページ用)
   ========================================================================== */
.page .entry-content,
.page-content,
.single .entry-content,
.section .content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 2;
}

.page .entry-content h2,
.page-content h2,
.single .entry-content h2,
.section .content h2 {
    font-size: var(--font-size-h2);
    color: var(--color-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-accent);
}

.page .entry-content h3,
.page-content h3,
.single .entry-content h3,
.section .content h3 {
    font-size: var(--font-size-h3);
    color: var(--color-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.page .entry-content p,
.page-content p,
.single .entry-content p,
.section .content p {
    margin-bottom: var(--spacing-md);
}

.page .entry-content ul,
.page-content ul,
.single .entry-content ul,
.section .content ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    list-style-type: disc;
}

.page .entry-content ul li,
.page-content ul li,
.single .entry-content ul li,
.section .content ul li {
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-xs);
}

.page .entry-content ol,
.page-content ol,
.single .entry-content ol,
.section .content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    list-style-type: decimal;
}

.page .entry-content ol li,
.page-content ol li,
.single .entry-content ol li,
.section .content ol li {
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-xs);
}

.page .entry-content a,
.page-content a,
.single .entry-content a,
.section .content a {
    color: var(--color-accent);
    text-decoration: underline;
}

.page .entry-content a:hover,
.page-content a:hover,
.single .entry-content a:hover,
.section .content a:hover {
    color: var(--color-primary);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
/* 1146px以下でダークモードボタンのテキストを非表示 */
@media (max-width: 1145px) {
    [data-dark-mode-toggle] .btn-text {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
    }

    .site-title {
        order: 1;
    }

    .accessibility-controls {
        order: 2;
        margin-left: auto;
    }

    .menu-toggle {
        display: block;
        order: 3;
        margin-left: var(--spacing-sm);
        height: 44px;
        width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .btn-text {
        display: none;
    }

    .font-size-mobile-label {
        display: inline;
        font-size: var(--font-size-small);
        margin-left: 4px;
    }

    .main-nav {
        display: none;
        width: 100%;
        order: 4;
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        padding: var(--spacing-md) 0;
    }

    .main-nav a {
        display: block;
        padding: var(--spacing-sm);
    }

    .doctor-profile {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .doctor-info {
        text-align: left;
    }

    .access-content {
        grid-template-columns: 1fr;
    }

    .access-info dl {
        grid-template-columns: 1fr;
    }

    .access-info dt {
        margin-top: var(--spacing-sm);
    }

    .access-info dt:first-child {
        margin-top: 0;
    }

    .access-map {
        order: -1;
    }

    .footer-info p:nth-of-type(2) {
        display: inline-block;
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    .hours-table {
        font-size: var(--font-size-small);
    }

    .hours-table th,
    .hours-table td {
        padding: var(--spacing-xs);
    }
}

@media (max-width: 399px) {
    .font-size-toggle .toggle-icon {
        display: none;
    }

    .font-size-mobile-label {
        display: none;
    }

    .font-size-mobile-label-expand {
        display: inline;
    }

    .font-size-toggle {
        min-width: 0;
        padding: 0 var(--spacing-sm);
    }
}

/* 520px以下でフォントサイズ拡大時のヘッダーレイアウト調整 */
@media (max-width: 520px) {
    [data-font-size="large"] .header-inner {
        flex-wrap: wrap;
        justify-content: center;
    }

    [data-font-size="large"] .site-title {
        width: 100%;
        text-align: center;
        order: 1;
        margin-bottom: var(--spacing-xs);
    }

    [data-font-size="large"] .accessibility-controls {
        order: 2;
        margin-left: 0;
    }

    [data-font-size="large"] .menu-toggle {
        order: 3;
        margin-left: var(--spacing-sm);
    }
}