/*
Theme Name: Medical Corporation Theme
Theme URI: https://example.com
Author: Claude
Author URI: https://claude.ai
Description: 医療法人向けWordPressテーマ。信頼感のあるブルー系デザイン。
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: medical-theme
Tags: medical, blue, responsive, clean
*/

/* =============================================
   CSS Variables
============================================= */
:root {
  --color-primary: #1a5f9e;
  --color-primary-dark: #0e3f6e;
  --color-primary-light: #2e7dc0;
  --color-accent: #3fa9f5;
  --color-accent-light: #e8f4fd;
  --color-text: #2c3e50;
  --color-text-light: #5a6a7a;
  --color-text-muted: #8a9aaa;
  --color-bg: #ffffff;
  --color-bg-light: #f4f8fc;
  --color-bg-gray: #f0f4f8;
  --color-border: #d0dde8;
  --color-white: #ffffff;

  --font-heading: 'Noto Serif JP', 'Yu Mincho', '游明朝', serif;
  --font-body: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'メイリオ', sans-serif;

  --shadow-sm: 0 2px 8px rgba(26, 95, 158, 0.08);
  --shadow-md: 0 4px 20px rgba(26, 95, 158, 0.12);
  --shadow-lg: 0 8px 40px rgba(26, 95, 158, 0.16);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --transition: 0.3s ease;
  --max-width: 1100px;
  --container-padding: 40px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
  list-style: none;
}

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

/* =============================================
   Typography
============================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
}

h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p {
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

/* =============================================
   Section Heading
============================================= */
.section-heading {
  text-align: center;
  margin-bottom: 60px;
}

.section-heading h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--color-primary-dark);
  position: relative;
  display: inline-block;
  padding-bottom: 20px;
}

.section-heading h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
}

.section-heading p {
  margin-top: 16px;
  color: var(--color-text-light);
  font-size: 1rem;
}

/* =============================================
   Buttons
============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-arrow::after {
  content: '→';
  font-size: 1.1em;
}

/* =============================================
   Header
============================================= */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  /* 背景色・backdrop-filterはJS側で動的に制御するためここでは指定しない */
  transition:
    background-color 0.4s ease,
    backdrop-filter 0.4s ease,
    -webkit-backdrop-filter 0.4s ease,
    box-shadow 0.4s ease,
    border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}

/* スクロール後クラス（box-shadowはJSで直接指定するため補助用） */
#site-header.header-scrolled {
  border-bottom-color: rgba(255, 255, 255, 0.3);
}

/* ヘッダー分のスペースをbodyに確保 */
body {
  padding-top: 80px;
}

/* ヒーローはヘッダーの下から始める（paddingで吸収） */
#hero {
  margin-top: -80px;
  padding-top: 80px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.site-logo img {
  height: 50px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text .org-type {
  font-size: 0.65rem;
  color: var(--color-text-light);
  letter-spacing: 0.1em;
}

.logo-text .org-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  line-height: 1.2;
}

/* Navigation */
.site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav > ul > li {
  position: relative;
}

.site-nav > ul > li > a {
  display: block;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: color 0.4s ease, background 0.3s ease;
  white-space: nowrap;
}

/* ヘッダー文字色・ロゴ色もトランジション */
.logo-text .org-name,
.logo-text .org-type {
  transition: color 0.4s ease;
}

.site-nav > ul > li > a:hover,
.site-nav > ul > li.current-menu-item > a {
  color: var(--color-primary);
  background: var(--color-accent-light);
}

/* Dropdown */
.site-nav .sub-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
  z-index: 100;
}

.site-nav li:hover .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav .sub-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 0.875rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-bg-light);
  transition: all var(--transition);
}

.site-nav .sub-menu li:last-child a {
  border-bottom: none;
}

.site-nav .sub-menu li a:hover {
  color: var(--color-primary);
  background: var(--color-accent-light);
  padding-left: 28px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition);
  border-radius: 2px;
}

/* =============================================
   Hero Section
============================================= */
#hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  overflow: hidden;
}

/* 画像設定時はCSSグラデーションを上書きしない（PHP側で制御）*/
#hero.has-bg-image {
  background-color: transparent;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 50%, rgba(63, 169, 245, 0.2) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(255,255,255,0.05) 0%, transparent 50%);
}

/* Decorative circles */
#hero::after {
  content: '';
  position: absolute;
  right: -100px;
  top: -100px;
  width: 500px;
  height: 500px;
  border: 80px solid rgba(255,255,255,0.05);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--color-white);
  line-height: 1.5;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.hero-content h1 span {
  color: var(--color-accent);
}

.hero-content p {
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-hero-primary {
  background: var(--color-white);
  color: var(--color-primary-dark);
  border-color: var(--color-white);
  font-weight: 700;
}

.btn-hero-primary:hover {
  background: var(--color-accent-light);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.btn-hero-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}

.btn-hero-outline:hover {
  background: rgba(255,255,255,0.15);
  color: var(--color-white);
}

.hero-image {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 45%;
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

/* Hero News Ticker */
.hero-news {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255,255,255,0.2);
  padding: 14px 0;
}

.hero-news-inner {
  display: flex;
  align-items: center;
  gap: 24px;
}

.news-label {
  flex-shrink: 0;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 3px;
  letter-spacing: 0.05em;
}

.hero-news a {
  color: rgba(255,255,255,0.9);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-news a:hover {
  color: var(--color-white);
}

.hero-news .news-date {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  flex-shrink: 0;
}

/* =============================================
   About Section
============================================= */
#about {
  padding: 100px 0;
  background: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-image::before {
  content: '';
  position: absolute;
  inset: -16px -16px 16px 16px;
  border: 2px solid var(--color-accent-light);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.about-content .section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.about-content h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  color: var(--color-primary-dark);
  margin-bottom: 24px;
  line-height: 1.5;
}

.about-content p {
  color: var(--color-text-light);
  line-height: 2;
  margin-bottom: 32px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
  padding: 20px 12px;
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.stat-item .stat-number {
  font-family: 'Georgia', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-item .stat-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* =============================================
   Greeting Section
============================================= */
#greeting {
  padding: 100px 0;
  background: var(--color-bg-light);
}

.greeting-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 60px;
  box-shadow: var(--shadow-md);
}

.greeting-photo {
  text-align: center;
}

.greeting-photo img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-accent-light);
  margin: 0 auto 16px;
}

.greeting-photo .director-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.greeting-photo .director-title {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.greeting-text h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  color: var(--color-primary-dark);
  margin-bottom: 24px;
  line-height: 1.6;
}

.greeting-text p {
  color: var(--color-text-light);
  line-height: 2.1;
}

/* =============================================
   Facilities Section (施設一覧)
============================================= */
#facilities {
  padding: 100px 0;
  background: var(--color-bg);
}

.facilities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.facility-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.facility-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
  color: inherit;
}

.facility-card-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: 28px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.facility-icon {
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.facility-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.facility-icon-placeholder {
  width: 40px;
  height: 40px;
  color: rgba(255,255,255,0.8);
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.facility-card-header h3 {
  color: var(--color-white);
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.facility-type-badge {
  display: inline-block;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.15);
  padding: 2px 10px;
  border-radius: 20px;
}

.facility-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.facility-card-body p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.9;
  flex: 1;
  margin-bottom: 20px;
}

.facility-access {
  background: var(--color-bg-light);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 20px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.facility-access span {
  display: block;
}

.facility-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 700;
  margin-top: auto;
}

.facility-link::after {
  content: '→';
  transition: transform var(--transition);
}

.facility-card:hover .facility-link::after {
  transform: translateX(4px);
}

/* =============================================
   News Section
============================================= */
#news {
  padding: 100px 0;
  background: var(--color-bg-light);
}

.news-list {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.news-item {
  border-bottom: 1px solid var(--color-border);
}

.news-item:last-child {
  border-bottom: none;
}

.news-item a {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 32px;
  color: var(--color-text);
  transition: all var(--transition);
}

.news-item a:hover {
  background: var(--color-accent-light);
  color: var(--color-primary);
  padding-left: 40px;
}

.news-date {
  flex-shrink: 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-family: 'Georgia', serif;
  min-width: 90px;
}

.news-category {
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 20px;
  background: var(--color-accent-light);
  color: var(--color-primary);
  min-width: 80px;
  text-align: center;
}

.news-title {
  font-size: 0.9rem;
  line-height: 1.6;
  flex: 1;
}

.news-footer {
  text-align: center;
  margin-top: 40px;
}

/* =============================================
   Info Table
============================================= */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 40px;
}

.info-table th,
.info-table td {
  padding: 16px 20px;
  border: 1px solid var(--color-border);
  font-size: 0.9rem;
  line-height: 1.8;
  vertical-align: top;
}

.info-table th {
  background: var(--color-bg-light);
  color: var(--color-primary-dark);
  font-weight: 700;
  width: 200px;
  white-space: nowrap;
}

.info-table td {
  background: var(--color-white);
  color: var(--color-text-light);
}

/* =============================================
   History Section
============================================= */
.history-list {
  position: relative;
  padding-left: 32px;
}

.history-list::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

.history-item {
  position: relative;
  padding-bottom: 28px;
  padding-left: 24px;
}

.history-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.history-item .history-date {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 4px;
  letter-spacing: 0.05em;
}

.history-item p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* =============================================
   Page Hero (固定ページ用)
============================================= */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  border: 50px solid rgba(255,255,255,0.06);
  border-radius: 50%;
}

.page-hero h1 {
  color: var(--color-white);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  position: relative;
  z-index: 1;
}

.page-hero .breadcrumb {
  margin-top: 12px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  position: relative;
  z-index: 1;
}

.page-hero .breadcrumb a {
  color: rgba(255,255,255,0.65);
}

.page-hero .breadcrumb a:hover {
  color: var(--color-white);
}

.page-hero .breadcrumb span {
  margin: 0 8px;
}

/* =============================================
   Page Content
============================================= */
.page-content {
  padding: 80px 0;
}

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

/* =============================================
   Footer
============================================= */
#site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
}

.footer-main {
  padding: 60px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-bottom: 20px;
}

.footer-brand .footer-logo img {
  height: 40px;
  filter: brightness(0) invert(1);
}

.footer-brand .footer-org-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-white);
  font-weight: 700;
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.65);
  margin-bottom: 20px;
}

.footer-contact-info {
  font-size: 0.85rem;
}

.footer-contact-info .tel {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
}

.footer-contact-info .address {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  margin-top: 4px;
}

.footer-nav h4 {
  color: var(--color-white);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  letter-spacing: 0.05em;
}

.footer-nav ul li {
  margin-bottom: 8px;
}

.footer-nav ul li a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.65);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-nav ul li a::before {
  content: '›';
  color: var(--color-accent);
}

.footer-nav ul li a:hover {
  color: var(--color-white);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom small {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
}

.footer-bottom-links a:hover {
  color: rgba(255,255,255,0.8);
}

/* =============================================
   Mobile Navigation Overlay
============================================= */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-white);
  z-index: 2000;
  overflow-y: auto;
  padding: 24px;
  flex-direction: column;
}

.mobile-menu.is-open {
  display: flex;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
  padding: 8px;
}

.mobile-menu nav ul {
  flex-direction: column;
}

.mobile-menu nav ul li {
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu nav ul li a {
  display: block;
  padding: 16px 4px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.mobile-menu nav .sub-menu {
  padding-left: 16px;
  background: var(--color-bg-light);
}

.mobile-menu nav .sub-menu li a {
  font-size: 0.9rem;
  font-weight: 400;
  padding: 12px 16px;
  color: var(--color-text-light);
}

/* =============================================
   Back to Top
============================================= */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* =============================================
   Accessibility
============================================= */
.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* =============================================
   Responsive
============================================= */
@media (max-width: 1024px) {
  :root {
    --container-padding: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  #hero {
    min-height: 480px;
    padding: 60px 0 100px;
  }

  .hero-image {
    display: none;
  }

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

  .about-image::before {
    display: none;
  }

  .facilities-grid {
    grid-template-columns: 1fr;
  }

  .greeting-inner {
    grid-template-columns: 1fr;
    padding: 40px 24px;
    gap: 32px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .info-table th {
    width: auto;
    display: block;
    border-bottom: none;
  }

  .info-table td {
    display: block;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .news-item a {
    flex-wrap: wrap;
    padding: 20px 20px;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .section-heading {
    margin-bottom: 40px;
  }
}