/* ============================================================
   common.css — shared commercial SaaS design system
   ============================================================ */

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

:root {
    --font-body: "IBM Plex Sans", "Hiragino Sans", "Noto Sans JP", sans-serif;

    --fs-xs: 11px;
    --fs-sm: 12px;
    --fs-base: 13px;
    --fs-md: 14px;
    --fs-lg: 15px;
    --fs-xl: 18px;

    --fw-normal: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;

    --color-bg-page: #f3f6f8;
    --color-bg-shell: #e9eef3;
    --color-bg-surface: #ffffff;
    --color-bg-surface-active: #f1f5f9;
    --color-bg-muted: #f8fafc;

    --color-text-primary: #172033;
    --color-text-secondary: #405066;
    --color-text-muted: #687789;
    --color-text-placeholder: #94a3b8;

    --color-border: #d8e2eb;
    --color-border-light: #edf3f7;
    --color-border-hover: #aebdcc;

    --shadow-sm: 0 1px 2px rgba(9, 30, 42, 0.04);
    --shadow-md: 0 10px 24px rgba(9, 30, 42, 0.08);
    --shadow-lg: 0 18px 42px rgba(9, 30, 42, 0.13);
    --shadow-header: 0 10px 28px rgba(4, 18, 31, 0.18);

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-full: 999px;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;

    --header-height: 66px;
    --sidebar-width: 296px;

    --color-accent: #0f766e;
    --color-accent-hover: #0b5f59;
    --color-accent-light: #eefaf7;
    --color-accent-bg: #cceee6;
    --color-accent-text: #0f6b64;
    --color-accent-focus-ring: rgba(15, 118, 110, 0.14);
    --header-accent-border: rgba(39, 178, 151, 0.48);

    --color-error: #dc2626;
    --color-error-bg: #fef2f2;
    --color-error-border: #fecaca;
}

.service-analysis {
    --color-accent: #0d9488;
    --color-accent-hover: #0f766e;
    --color-accent-light: #f0fdfa;
    --color-accent-bg: #ccfbf1;
    --color-accent-text: #0f766e;
    --color-accent-focus-ring: rgba(15, 118, 110, 0.14);
    --header-accent-border: rgba(15, 118, 110, 0.35);
}

.service-local-events {
    --color-accent: #0891b2;
    --color-accent-hover: #0e7490;
    --color-accent-light: #ecfeff;
    --color-accent-bg: #cffafe;
    --color-accent-text: #0e7490;
    --color-accent-focus-ring: rgba(8, 145, 178, 0.14);
    --header-accent-border: rgba(8, 145, 178, 0.35);
}

html,
body {
    min-height: 100%;
}

body {
    height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: var(--font-body);
    color: var(--color-text-primary);
    background: var(--color-bg-page);
    font-size: var(--fs-base);
    letter-spacing: 0;
}

.service-news,
.service-analysis,
.service-local-events {
    display: flex;
    flex: 1;
    min-height: 0;
    flex-direction: column;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    padding: 0 24px;
    color: #f8fafc;
    background:
        linear-gradient(135deg, rgba(6, 30, 38, 0.98) 0%, rgba(9, 42, 55, 0.98) 52%, rgba(13, 83, 77, 0.98) 100%);
    border-bottom: 1px solid rgba(120, 220, 200, 0.24);
    box-shadow: var(--shadow-header);
    backdrop-filter: blur(12px);
    z-index: 100;
    flex-shrink: 0;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.header-title-link {
    color: inherit;
    text-decoration: none;
    flex-shrink: 0;
}

.header-title-link:visited,
.header-title-link:hover {
    color: inherit;
    text-decoration: none;
}

.app-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.app-logo-shell {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(120, 220, 200, 0.28);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18);
    flex-shrink: 0;
}

.app-logo {
    display: block;
    width: 30px;
    height: 24px;
    object-fit: contain;
}

.app-heading {
    display: grid;
    gap: 1px;
    min-width: 0;
}

.app-brand-name {
    color: rgba(190, 242, 230, 0.82);
    font-size: 10px;
    font-weight: var(--fw-bold);
    line-height: 1;
    letter-spacing: 0;
}

.app-title {
    color: #ffffff;
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    line-height: 1.2;
    white-space: nowrap;
    letter-spacing: 0;
}

.app-subtitle {
    display: block;
    max-width: 520px;
    color: rgba(226, 247, 241, 0.72);
    font-size: var(--fs-sm);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 32px;
    padding: 6px 12px;
    border: 1px solid rgba(226, 247, 241, 0.2);
    border-radius: var(--radius-md);
    color: rgba(248, 250, 252, 0.82);
    background: rgba(255, 255, 255, 0.08);
    font-size: var(--fs-sm);
    font-family: var(--font-body);
    font-weight: var(--fw-medium);
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.header-action-btn:hover {
    color: #ffffff;
    border-color: var(--header-accent-border);
    background: rgba(255, 255, 255, 0.14);
    box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.13);
}

.container {
    display: flex;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    background:
        radial-gradient(circle at top left, rgba(15, 118, 110, 0.08), transparent 28%),
        linear-gradient(180deg, #f6f9fb 0%, var(--color-bg-shell) 100%);
}

.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.96);
    border-right: 1px solid var(--color-border);
}

.sidebar-header {
    position: sticky;
    top: 0;
    z-index: 8;
    padding: 10px 18px;
    color: var(--color-text-muted);
    background: var(--color-bg-muted);
    border-top: 1px solid var(--color-border-light);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    letter-spacing: 0;
    text-transform: uppercase;
}

.sidebar-section {
    border-bottom: 1px solid var(--color-border);
}

.search-box {
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 16px 18px;
    background: var(--color-bg-surface);
    border-bottom: 1px solid var(--color-border);
}

.search-input,
.custom-search-input,
.node-input-container input {
    width: 100%;
    min-height: 38px;
    padding: 9px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    background: var(--color-bg-muted);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.search-input:focus,
.custom-search-input:focus,
.node-input-container input:focus {
    background: var(--color-bg-surface);
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-focus-ring);
}

.search-input::placeholder,
.custom-search-input::placeholder,
.node-input-container input::placeholder {
    color: var(--color-text-placeholder);
}

.search-result-info {
    display: none;
    padding: 9px 18px;
    color: #854d0e;
    background: #fefce8;
    border-bottom: 1px solid #fde68a;
    font-size: var(--fs-sm);
}

.search-result-info.visible {
    display: block;
}

.genre-item,
.region-item {
    border-bottom: 1px solid var(--color-border-light);
}

.genre-item.hidden,
.company-item.hidden {
    display: none;
}

.genre-item > summary.genre-label,
.region-item > summary.region-label,
.city-item > summary.city-label {
    list-style: none;
}

.genre-item > summary.genre-label::-webkit-details-marker,
.region-item > summary.region-label::-webkit-details-marker,
.city-item > summary.city-label::-webkit-details-marker {
    display: none;
}

.genre-label,
.region-label,
.city-label {
    display: flex;
    align-items: center;
    gap: 9px;
    min-height: 42px;
    padding: 10px 16px 10px 18px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
    font-size: var(--fs-md);
    font-weight: var(--fw-semibold);
}

.city-label {
    padding-left: 30px;
    min-height: 38px;
    font-size: var(--fs-base);
}

.genre-label::before,
.region-label::before,
.city-label::before {
    content: "\f054";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    color: var(--color-text-placeholder);
    font-family: "Font Awesome 5 Free";
    font-size: 8px;
    font-weight: 900;
    transition: transform var(--transition-normal);
}

.genre-item[open] > .genre-label::before,
.region-item[open] > .region-label::before,
.city-item[open] > .city-label::before {
    transform: rotate(90deg);
}

.genre-label:hover,
.region-label:hover,
.city-label:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-surface-active);
}

.genre-label.active,
.genre-item[open] > .genre-label {
    color: var(--color-accent-text);
    background: var(--color-accent-light);
}

.genre-icon,
.category-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    color: var(--color-text-muted);
    font-size: var(--fs-md);
    flex-shrink: 0;
}

.genre-item[open] .genre-icon,
.category-item.active .category-icon {
    color: var(--color-accent-text);
}

.genre-name,
.region-name,
.city-name,
.category-name {
    min-width: 0;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.genre-count {
    flex-shrink: 0;
    min-width: 22px;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    background: var(--color-bg-surface-active);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    text-align: center;
}

.company-list,
.ward-list,
.region-content {
    display: none;
    background: #fbfdff;
}

.genre-item[open] .company-list,
.city-item[open] .ward-list,
.region-item[open] > .region-content {
    display: block;
}

.company-item {
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border-light);
    font-size: var(--fs-base);
}

.company-item.highlight {
    background: #fef9c3;
}

.company-item > a {
    display: block;
    padding: 9px 16px 9px 44px;
    color: inherit;
    text-decoration: none;
    line-height: 1.35;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.ward-item > a {
    padding-left: 58px;
}

.company-item > a:visited {
    color: inherit;
}

.company-item > a:hover,
.company-item.active {
    color: var(--color-accent-text);
    background: var(--color-accent-light);
    text-decoration: none;
}

.category-item {
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text-secondary);
}

.category-item > a {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 10px 18px;
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.category-item > a:visited {
    color: inherit;
}

.category-item:hover,
.category-item.active {
    color: var(--color-accent-text);
    background: var(--color-accent-light);
}

.category-loading {
    display: none;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
    padding: 3px 7px;
    border-radius: var(--radius-full);
    color: var(--color-accent-text);
    background: var(--color-accent-bg);
    font-size: var(--fs-xs);
}

.category-loading.htmx-request {
    display: inline-flex;
}

.category-loading-spinner,
.loading-spinner,
.main-loading-spinner,
.spinner {
    border-radius: 50%;
    animation: loading-spin 0.9s linear infinite;
}

.category-loading-spinner {
    width: 12px;
    height: 12px;
    border: 2px solid rgba(15, 23, 42, 0.18);
    border-top-color: var(--color-accent);
}

.main {
    flex: 1;
    min-width: 0;
    overflow-y: auto;
    padding: 24px;
    background:
        radial-gradient(circle at top right, rgba(15, 118, 110, 0.07), transparent 26%),
        linear-gradient(180deg, #f7fafb 0%, #f1f5f8 100%);
}

.main-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--color-border);
}

.main-title {
    min-width: 0;
    color: var(--color-text-primary);
    font-size: 20px;
    font-weight: var(--fw-bold);
    line-height: 1.35;
}

.article-count,
.company-count-info,
.list-scope-note {
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: 1.5;
}

.article-count {
    flex-shrink: 0;
    padding: 5px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-bg-surface);
    font-weight: var(--fw-semibold);
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.article-card {
    display: block;
    padding: 16px 18px;
    color: inherit;
    background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.article-card:hover {
    color: inherit;
    border-color: var(--color-border-hover);
    box-shadow: 0 14px 34px rgba(9, 30, 42, 0.1);
    transform: translateY(-1px);
    text-decoration: none;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    color: var(--color-text-muted);
    font-size: var(--fs-xs);
    line-height: 1.2;
}

.article-source {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: 3px 7px;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    background: var(--color-bg-muted);
    font-weight: var(--fw-semibold);
}

.article-date {
    color: var(--color-text-placeholder);
    font-size: var(--fs-xs);
    white-space: nowrap;
}

.article-title {
    margin-bottom: 6px;
    color: var(--color-text-primary);
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    line-height: 1.45;
}

.article-description {
    display: -webkit-box;
    overflow: hidden;
    color: var(--color-text-muted);
    font-size: var(--fs-base);
    line-height: 1.6;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.article-tag {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    padding: 3px 8px;
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    color: var(--color-accent-text);
    background: var(--color-accent-light);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.article-tag:hover {
    color: #ffffff;
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.empty-state,
.error-state,
.loading {
    padding: 44px 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-surface);
    text-align: center;
}

.empty-state,
.loading {
    color: var(--color-text-muted);
}

.error-state {
    color: var(--color-error);
    background: var(--color-error-bg);
    border-color: var(--color-error-border);
}

.load-more-container {
    padding: 18px 0 6px;
    text-align: center;
}

.load-more-btn,
.custom-search-btn,
.top-hero-btn,
.node-search-btn,
.expand-btn,
.back-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 38px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    cursor: pointer;
    transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.load-more-btn,
.custom-search-btn,
.top-hero-btn,
.node-search-btn {
    border: 1px solid var(--color-accent);
    color: #ffffff;
    background: var(--color-accent);
}

.load-more-btn {
    padding: 10px 26px;
}

.load-more-btn:hover,
.custom-search-btn:hover,
.top-hero-btn:hover,
.node-search-btn:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    box-shadow: 0 8px 18px var(--color-accent-focus-ring);
}

.load-more-btn:active,
.custom-search-btn:active,
.top-hero-btn:active,
.node-search-btn:active {
    transform: translateY(1px);
}

.load-more-btn:disabled,
.custom-search-btn:disabled {
    background: var(--color-text-placeholder);
    border-color: var(--color-text-placeholder);
    cursor: not-allowed;
}

.load-more-info {
    margin-top: 8px;
    color: var(--color-text-placeholder);
    font-size: var(--fs-sm);
}

.back-btn {
    margin-bottom: 16px;
    padding: 8px 14px;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    background: var(--color-bg-surface);
}

.back-btn:hover {
    color: var(--color-accent-text);
    background: var(--color-accent-light);
    border-color: var(--header-accent-border);
}

.footer {
    margin-top: 32px;
    padding: 18px 0 0;
    border-top: 1px solid var(--color-border);
}

.footer-note,
.footer-disclaimer,
.footer-copyright {
    color: var(--color-text-muted);
    line-height: 1.65;
}

.footer-note {
    margin-bottom: 10px;
    font-size: 10px;
}

.footer-disclaimer {
    font-size: var(--fs-xs);
}

.footer-disclaimer-title {
    margin-bottom: 6px;
    color: var(--color-text-secondary);
    font-weight: var(--fw-semibold);
}

.footer-disclaimer ul {
    padding-left: 18px;
}

.footer-disclaimer li {
    margin-bottom: 4px;
}

.footer-copyright {
    margin-top: 10px;
    font-size: 10px;
    color: var(--color-text-placeholder);
}

.no-results {
    padding: 18px;
    color: var(--color-text-placeholder);
    font-size: var(--fs-base);
    text-align: center;
}

.hidden {
    display: none !important;
}

@keyframes loading-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@media (max-width: 900px) {
    body {
        height: auto;
        min-height: 100vh;
    }

    .app-header {
        align-items: flex-start;
        height: auto;
        min-height: var(--header-height);
        padding: 10px 14px;
        gap: 10px;
    }

    .header-left {
        align-items: flex-start;
        flex-direction: column;
        gap: 5px;
    }

    .app-title {
        font-size: 17px;
    }

    .app-logo-shell {
        width: 34px;
        height: 34px;
    }

    .app-logo {
        width: 26px;
        height: 21px;
    }

    .app-brand-name {
        font-size: 9px;
    }

    .app-subtitle {
        max-width: calc(100vw - 150px);
        font-size: 11px;
    }

    .header-right {
        gap: 6px;
    }

    .header-action-btn {
        min-height: 30px;
        padding: 5px 9px;
        font-size: 11px;
    }

    .container {
        flex-direction: column;
        overflow: visible;
    }

    .sidebar {
        width: 100%;
        max-height: 48vh;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }

    .search-box,
    .sidebar-header {
        position: static;
    }

    .main {
        padding: 18px 14px;
        overflow-y: visible;
    }

    .main-header {
        align-items: stretch;
        flex-direction: column;
        gap: 8px;
    }

    .article-count {
        align-self: flex-start;
    }

    .article-card {
        padding: 14px;
    }
}