/**
 * Header Styles - Zukan Style (図鑑風デザイン)
 * 補助金図鑑 - Perfect Header
 * 書斎・図鑑風デザイン
 * 
 * @package Joseikin_Insight_Header
 * @version 16.1.0 (Zukan Edition - Logo Fix)
 */

/* ===============================================
   CSS VARIABLES - Zukan Design System
   =============================================== */
:root {
    /* 補助金図鑑カラーパレット */
    --h-paper-bg: #fdfbf7;
    --h-paper-dark: #f2efe9;
    --h-ink-primary: #2b2b2b;
    --h-ink-light: #595959;
    --h-accent-gold: #c5a059;
    --h-accent-red: #a63737;
    --h-highlight-blue: #2c5282;
    --h-wood-brown: #4a3b32;
    --h-book-cover: #1e293b;
    
    --h-white: #ffffff;
    --h-gray-100: #f8f9fa;
    --h-gray-200: #e9ecef;
    --h-gray-300: #dee2e6;
    --h-gray-400: #ced4da;
    
    --h-font-serif: "Shippori Mincho", "Yu Mincho", serif;
    --h-font-heading: "Zen Old Mincho", "Shippori Mincho", serif;
    --h-font-sans: "Noto Sans JP", sans-serif;
    --h-font-hand: "La Belle Aurore", cursive;
    
    --h-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --h-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --h-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --h-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --h-shadow-book: 0 2px 5px rgba(43, 43, 43, 0.05), 0 1px 2px rgba(43, 43, 43, 0.1);
    --h-radius: 2px;
    --h-radius-lg: 4px;
    
    --h-header-height: 64px;
    --h-max-width: 1200px;
    
    /* 紙のノイズテクスチャ */
    --h-paper-texture: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.6' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
}

/* ===============================================
   HEADER PLACEHOLDER
   =============================================== */
.ji-header-placeholder {
    height: var(--h-header-height);
    display: block;
}

/* ===============================================
   HEADER - Main Styles
   =============================================== */
header#ji-header.ji-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: rgba(253, 251, 247, 0.95) !important;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    height: var(--h-header-height);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    border-bottom: 1px solid var(--h-gray-300);
}

header#ji-header.ji-header.scrolled {
    box-shadow: var(--h-shadow);
    background: rgba(253, 251, 247, 0.98) !important;
}

header#ji-header.ji-header.hidden {
    transform: translateY(-100%);
}

header#ji-header .ji-header-main {
    height: var(--h-header-height);
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
}

header#ji-header .ji-header-inner {
    max-width: var(--h-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    height: 100%;
    width: 100%;
}

@media (max-width: 640px) {
    header#ji-header .ji-header-inner {
        padding: 0 16px;
    }
}

/* ===============================================
   LOGO - Zukan Style (強化版)
   =============================================== */
header#ji-header a.ji-logo,
.ji-header a.ji-logo {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
    gap: 10px !important;
    flex-shrink: 0 !important;
    text-decoration: none !important;
    transition: opacity var(--h-transition);
    height: auto !important;
    width: auto !important;
    max-width: none !important;
}

header#ji-header a.ji-logo:hover {
    opacity: 0.8;
}

header#ji-header .ji-logo-icon,
.ji-header .ji-logo-icon {
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    min-height: 36px !important;
    max-width: 36px !important;
    max-height: 36px !important;
    background-color: var(--h-book-cover) !important;
    color: var(--h-accent-gold) !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: var(--h-radius) !important;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1) !important;
    border: 1px solid #4a5568 !important;
    transition: background-color var(--h-transition);
    flex-shrink: 0 !important;
}

header#ji-header a.ji-logo:hover .ji-logo-icon {
    background-color: var(--h-ink-primary) !important;
}

header#ji-header .ji-logo-icon span,
.ji-header .ji-logo-icon span {
    font-family: "Zen Old Mincho", "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif !important;
    font-weight: 700 !important;
    font-size: 18px !important;
    line-height: 1 !important;
    display: inline-block !important;
    color: var(--h-accent-gold) !important;
}

header#ji-header .ji-logo-text-wrapper,
.ji-header .ji-logo-text-wrapper {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    justify-content: center !important;
    gap: 2px !important;
    flex-shrink: 0 !important;
}

header#ji-header .ji-logo-title,
.ji-header .ji-logo-title {
    font-family: "Zen Old Mincho", "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif !important;
    font-weight: 700 !important;
    font-size: 16px !important;
    line-height: 1.2 !important;
    letter-spacing: 0.05em !important;
    color: var(--h-ink-primary) !important;
    white-space: nowrap !important;
    margin: 0 !important;
    padding: 0 !important;
}

header#ji-header .ji-logo-subtitle,
.ji-header .ji-logo-subtitle {
    font-family: "Noto Sans JP", sans-serif !important;
    font-size: 9px !important;
    color: var(--h-ink-light) !important;
    letter-spacing: 0.08em !important;
    text-transform: uppercase !important;
    white-space: nowrap !important;
    margin: 0 !important;
    padding: 0 !important;
    line-height: 1 !important;
}

/* Mobile Logo Adjustments */
@media (max-width: 480px) {
    header#ji-header a.ji-logo {
        gap: 8px !important;
    }
    
    header#ji-header .ji-logo-icon {
        width: 32px !important;
        height: 32px !important;
        min-width: 32px !important;
        min-height: 32px !important;
        max-width: 32px !important;
        max-height: 32px !important;
    }
    
    header#ji-header .ji-logo-icon span {
        font-size: 16px !important;
    }
    
    header#ji-header .ji-logo-title {
        font-size: 14px !important;
    }
    
    header#ji-header .ji-logo-subtitle {
        font-size: 8px !important;
    }
}

/* ===============================================
   NAVIGATION
   =============================================== */
.ji-nav {
    display: none;
    align-items: center;
    gap: 24px;
    margin: 0 24px;
    flex: 1;
    justify-content: center;
    height: 100%;
}

@media (min-width: 1024px) {
    .ji-nav {
        display: flex;
    }
}

.ji-nav-item {
    position: static;
    height: 100%;
    display: flex;
    align-items: center;
}

.ji-nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 4px;
    color: var(--h-ink-light);
    font-family: var(--h-font-sans);
    font-size: 13px;
    font-weight: 500;
    transition: color var(--h-transition);
    white-space: nowrap;
    cursor: pointer;
    position: relative;
    text-decoration: none;
    letter-spacing: 0.02em;
}

.ji-nav-link:hover,
.ji-nav-link:focus-visible {
    color: var(--h-accent-gold);
}

.ji-nav-link--active {
    color: var(--h-ink-primary);
    font-weight: 700;
}

/* Diagnostic Button (Header) */
.ji-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background-color: var(--h-ink-primary);
    color: var(--h-white);
    border-radius: var(--h-radius);
    font-family: var(--h-font-sans);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.05em;
    transition: all var(--h-transition);
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.ji-nav-btn:hover {
    background-color: var(--h-accent-gold);
    color: var(--h-white);
    transform: translateY(-1px);
}

.ji-nav-link .ji-chevron {
    font-size: 10px;
    margin-left: 2px;
    transition: transform var(--h-transition);
    color: var(--h-gray-400);
}

.ji-nav-item.menu-active .ji-chevron {
    transform: rotate(180deg);
}

/* ===============================================
   MEGA MENU - Zukan Style
   =============================================== */
.ji-mega-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--h-paper-bg);
    background-image: var(--h-paper-texture);
    padding: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);
    transition: all var(--h-transition);
    pointer-events: none;
    box-shadow: var(--h-shadow-lg);
    z-index: 9998;
    border-bottom: 4px solid var(--h-accent-gold);
    border-top: 1px solid var(--h-gray-200);
}

.ji-nav-item.menu-active .ji-mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.ji-mega-menu-inner {
    max-width: var(--h-max-width);
    margin: 0 auto;
    padding: 0;
}

.ji-mega-menu-header {
    background: var(--h-paper-dark);
    padding: 16px 32px;
    border-bottom: 1px solid var(--h-gray-300);
    display: flex;
    align-items: center;
    gap: 12px;
}

.ji-mega-menu-title {
    font-family: var(--h-font-heading);
    font-size: 16px;
    font-weight: 700;
    color: var(--h-ink-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.ji-mega-menu-title i {
    color: var(--h-accent-gold);
}

.ji-mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    background: var(--h-paper-bg);
}

.ji-mega-column {
    display: flex;
    flex-direction: column;
    padding: 24px;
    border-right: 1px dashed var(--h-gray-300);
}

.ji-mega-column:last-child {
    border-right: none;
}

.ji-mega-column--prefectures {
    background: var(--h-paper-dark);
}

.ji-mega-column-title {
    font-family: var(--h-font-sans);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--h-ink-light);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--h-accent-gold);
    display: flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
}

.ji-mega-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ji-mega-link {
    display: flex;
    align-items: center;
    color: var(--h-ink-primary);
    font-family: var(--h-font-serif);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: var(--h-radius);
    transition: all var(--h-transition);
    text-decoration: none;
}

.ji-mega-link:hover {
    background: var(--h-paper-dark);
    color: var(--h-accent-gold);
    padding-left: 16px;
}

.ji-mega-link-text {
    position: relative;
}

.ji-mega-link:hover .ji-mega-link-text::before {
    content: '>';
    position: absolute;
    left: -12px;
    color: var(--h-accent-gold);
}

/* Prefecture Grid */
.ji-prefecture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    max-height: 280px;
    overflow-y: auto;
}

.ji-prefecture-link {
    color: var(--h-ink-light);
    font-family: var(--h-font-sans);
    font-size: 12px;
    padding: 6px 4px;
    text-align: center;
    border: 1px solid var(--h-gray-300);
    background: var(--h-white);
    border-radius: var(--h-radius);
    transition: all var(--h-transition);
    text-decoration: none;
}

.ji-prefecture-link:hover {
    border-color: var(--h-highlight-blue);
    color: var(--h-highlight-blue);
    background: var(--h-white);
}

@media (max-width: 1279px) {
    .ji-mega-menu-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .ji-mega-column--prefectures {
        grid-column: span 2;
    }
    .ji-prefecture-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

@media (max-width: 1023px) {
    .ji-mega-menu {
        display: none;
    }
}

/* ===============================================
   ACTIONS (Search, Mobile Toggle)
   =============================================== */
.ji-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* Icon Buttons */
.ji-btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--h-ink-primary);
    font-size: 18px;
    transition: color var(--h-transition);
}

.ji-btn-icon:hover {
    color: var(--h-accent-gold);
}

/* Mobile Toggle */
.ji-mobile-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    color: var(--h-ink-primary);
    gap: 6px;
}

@media (min-width: 1024px) {
    .ji-mobile-toggle {
        display: none;
    }
}

.ji-hamburger {
    width: 24px;
    height: 2px;
    background: currentColor;
    transition: all var(--h-transition);
    position: relative;
}

.ji-hamburger::before,
.ji-hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
    transition: all var(--h-transition);
}

.ji-hamburger::before { top: -8px; }
.ji-hamburger::after { top: 8px; }

.ji-mobile-toggle[aria-expanded="true"] .ji-hamburger {
    background: transparent;
}
.ji-mobile-toggle[aria-expanded="true"] .ji-hamburger::before {
    transform: rotate(45deg);
    top: 0;
}
.ji-mobile-toggle[aria-expanded="true"] .ji-hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* ===============================================
   SEARCH PANEL - Card Style
   =============================================== */
.ji-search-panel {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--h-paper-bg);
    background-image: var(--h-paper-texture);
    border-top: 1px solid var(--h-gray-300);
    box-shadow: var(--h-shadow-lg);
    padding: 32px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--h-transition);
    z-index: 9997;
}

.ji-search-panel.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.ji-search-panel-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 24px;
    background: var(--h-white);
    border: 1px solid var(--h-gray-300);
    border-radius: 2px;
    box-shadow: var(--h-shadow-book);
    position: relative;
}

/* Binder Hole Decoration */
.ji-search-panel-inner::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 16px;
    width: 10px;
    height: 10px;
    background: var(--h-gray-300);
    border-radius: 50%;
    box-shadow: inset 1px 1px 2px rgba(0,0,0,0.2);
}
.ji-search-panel-inner::after {
    content: '';
    position: absolute;
    bottom: 16px;
    left: 16px;
    width: 10px;
    height: 10px;
    background: var(--h-gray-300);
    border-radius: 50%;
    box-shadow: inset 1px 1px 2px rgba(0,0,0,0.2);
}

.ji-search-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-left: 24px;
}

.ji-search-main {
    position: relative;
}

.ji-search-input-wrapper {
    position: relative;
}

.ji-search-input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 1px solid var(--h-gray-400);
    border-radius: var(--h-radius);
    font-family: var(--h-font-sans);
    font-size: 15px;
    color: var(--h-ink-primary);
    background: var(--h-paper-bg);
    transition: all var(--h-transition);
}

.ji-search-input:focus {
    outline: none;
    border-color: var(--h-accent-gold);
    background: var(--h-white);
}

.ji-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--h-gray-400);
}

.ji-search-suggestions {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.ji-search-suggestion-label {
    font-family: var(--h-font-sans);
    font-size: 11px;
    font-weight: 700;
    color: var(--h-accent-gold);
}

.ji-search-suggestion {
    background: var(--h-paper-dark);
    color: var(--h-ink-light);
    padding: 4px 10px;
    border-radius: var(--h-radius);
    font-size: 12px;
    border: 1px solid var(--h-gray-300);
    text-decoration: none;
    transition: all var(--h-transition);
}

.ji-search-suggestion:hover {
    background: var(--h-white);
    border-color: var(--h-accent-gold);
    color: var(--h-accent-gold);
}

/* ===============================================
   MOBILE MENU
   =============================================== */
.ji-mobile-menu {
    position: fixed;
    inset: 0;
    background: var(--h-paper-bg);
    background-image: var(--h-paper-texture);
    z-index: 99999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.ji-mobile-menu.open {
    opacity: 1;
    visibility: visible;
}

.ji-mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--h-gray-300);
    position: sticky;
    top: 0;
    background: rgba(253, 251, 247, 0.95);
    backdrop-filter: blur(5px);
    z-index: 10;
}

.ji-mobile-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ji-mobile-logo-icon {
    width: 32px;
    height: 32px;
    background-color: var(--h-book-cover);
    color: var(--h-accent-gold);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--h-font-heading);
    font-weight: 700;
    font-size: 16px;
}

.ji-mobile-logo-text {
    font-family: var(--h-font-heading);
    font-weight: 700;
    font-size: 16px;
    color: var(--h-ink-primary);
}

.ji-mobile-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--h-ink-primary);
    border: 1px solid var(--h-gray-300);
    border-radius: var(--h-radius);
}

.ji-mobile-search {
    padding: 20px;
    border-bottom: 1px solid var(--h-gray-200);
}

.ji-mobile-search-input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    background: var(--h-white);
    border: 1px solid var(--h-gray-300);
    border-radius: var(--h-radius);
    color: var(--h-ink-primary);
    font-size: 14px;
}

.ji-mobile-search-icon {
    position: absolute;
    left: 32px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--h-gray-400);
}

.ji-mobile-content {
    padding: 0;
}

.ji-mobile-accordion-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    color: var(--h-ink-primary);
    font-family: var(--h-font-serif);
    font-weight: 600;
    border-bottom: 1px solid var(--h-gray-200);
    background: var(--h-paper-bg);
}

.ji-mobile-accordion-content {
    display: none;
    background: var(--h-white);
}

.ji-mobile-accordion-content.open {
    display: block;
}

.ji-mobile-link {
    display: block;
    padding: 12px 20px 12px 40px;
    color: var(--h-ink-light);
    font-family: var(--h-font-sans);
    font-size: 13px;
    text-decoration: none;
    border-bottom: 1px solid var(--h-gray-100);
    position: relative;
}

.ji-mobile-link::before {
    content: '*';
    position: absolute;
    left: 24px;
    color: var(--h-accent-gold);
}

.ji-mobile-single-link {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    color: var(--h-ink-primary);
    font-family: var(--h-font-serif);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid var(--h-gray-200);
}

.ji-mobile-single-link i {
    margin-right: 12px;
    color: var(--h-accent-gold);
    width: 20px;
    text-align: center;
}

.ji-mobile-cta {
    margin: 24px 20px;
    background: var(--h-ink-primary);
    color: var(--h-white);
    padding: 14px;
    border-radius: var(--h-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 700;
    text-decoration: none;
    box-shadow: var(--h-shadow-book);
}

.ji-mobile-footer {
    padding: 32px 20px;
    background: var(--h-book-cover);
    color: var(--h-gray-300);
    text-align: center;
}

.ji-mobile-copyright {
    font-family: var(--h-font-sans);
    font-size: 11px;
    letter-spacing: 0.05em;
}

/* ===============================================
   BODY CLASS HELPERS
   =============================================== */
body.menu-open {
    overflow: hidden;
}