:root {
    --bg: #0c0f1a;
    --sidebar-bg: rgba(15, 20, 35, 0.95);
    --panel-bg: rgba(18, 24, 42, 0.9);
    --card-border: rgba(255, 255, 255, 0.06);
    --text: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #475569;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --active-bg: rgba(59, 130, 246, 0.12);
    --active-border: rgba(59, 130, 246, 0.4);
    --hover-bg: rgba(255, 255, 255, 0.03);
    --content-bg: rgba(0, 0, 0, 0.3);
    --mark-bg: rgba(250, 204, 21, 0.3);
    --mark-color: #fef08a;
    --code-bg: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] {
    --bg: #f1f5f9;
    --sidebar-bg: rgba(255, 255, 255, 0.95);
    --panel-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.08);
    --text: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent: #2563eb;
    --accent-hover: #3b82f6;
    --active-bg: rgba(37, 99, 235, 0.08);
    --active-border: rgba(37, 99, 235, 0.5);
    --hover-bg: rgba(0, 0, 0, 0.02);
    --content-bg: rgba(0, 0, 0, 0.03);
    --mark-bg: rgba(250, 204, 21, 0.4);
    --mark-color: #92400e;
    --code-bg: rgba(0, 0, 0, 0.06);
}

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

html {
    font-size: 120%; /* 1.2倍に拡大 */
}

body {
    font-family: 'YakuHanJP', 'LINE Seed JP', sans-serif;
    font-weight: 400;
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background 0.3s, color 0.3s;
}

/* ── Pagination Controls ── */
.pagination-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--panel-bg);
    border-top: 1px solid var(--card-border);
    font-size: 0.85rem;
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.05); /* optional shadow to lift it up slightly */
    z-index: 10;
}

.page-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg);
    padding: 0.25rem;
    border-radius: 8px;
    border: 1px solid var(--card-border);
}

.page-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.page-btn:hover:not(:disabled) {
    color: var(--accent);
    background: var(--active-bg);
}

.page-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.page-info {
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
    font-size: 0.8rem;
    min-width: 3.5rem;
    text-align: center;
    user-select: none;
}
.page-info strong {
    color: var(--text);
    font-weight: 600;
}
.page-info-sep {
    margin: 0 0.1rem;
    opacity: 0.5;
}

.page-size-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.page-size-select {
    appearance: none;
    background: var(--bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    border-radius: 8px;
    padding: 0.35rem 1.8rem 0.35rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    outline: none;
}

.page-size-select:hover, .page-size-select:focus {
    border-color: var(--accent);
    color: var(--text);
}

.page-size-icon {
    position: absolute;
    right: 0.6rem;
    pointer-events: none;
    color: var(--text-muted);
}

/* ── Header ── */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 1.25rem;
    background: var(--sidebar-bg);
    border-bottom: 1px solid var(--card-border);
    flex-shrink: 0;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.app-header h1 {
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.02em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.filter-toggle {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.filter-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--active-bg);
}

.filter-toggle.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
}

/* ── Theme Toggle ── */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    transition: all 0.2s;
}

.theme-toggle:hover {
    background: var(--hover-bg);
    color: var(--text);
}

/* ── Layout ── */
.app-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
    width: 340px;
    min-width: 280px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: background 0.3s;
}


.sidebar-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--card-border);
}

.sidebar-search svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 0.85rem;
    outline: none;
    font-family: inherit;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.btn-clear {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    line-height: 1;
    padding: 2px 4px;
}

.btn-clear:hover {
    color: var(--text);
}

.sidebar-list {
    flex: 1;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(128, 128, 128, 0.2) transparent;
    padding: 0.5rem;
}

.sidebar-list::-webkit-scrollbar {
    width: 4px;
}

.sidebar-list::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-list::-webkit-scrollbar-thumb {
    background: rgba(128, 128, 128, 0.2);
    border-radius: 3px;
}

/* ── List Item ── */
.list-item {
    display: block;
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--card-border);
    padding: 0.7rem 0.85rem;
    cursor: pointer;
    color: var(--text);
    font-family: inherit;
    transition: background 0.15s;
    border-left: 3px solid transparent;
}

.list-item:hover {
    background: var(--hover-bg);
}

.list-item.active {
    background: var(--active-bg);
    border-left-color: var(--accent);
}

.list-item-header {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.2rem;
}

.ticker {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.25);
    color: #60a5fa;
    padding: 0.05rem 0.35rem;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
}

[data-theme="light"] .ticker {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
    color: #2563eb;
}

.company {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list-item-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0.15rem;
}

.list-item-date {
    font-size: 0.65rem;
    color: var(--text-muted);
}

.empty-list {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ── Content Panel ── */
.content-panel {
    flex: 1;
    overflow-y: auto;
    background: var(--panel-bg);
    transition: background 0.3s;
    scrollbar-width: thin;
    scrollbar-color: rgba(128, 128, 128, 0.2) transparent;
}

.content-panel::-webkit-scrollbar {
    width: 6px;
}

.content-panel::-webkit-scrollbar-track {
    background: transparent;
}

.content-panel::-webkit-scrollbar-thumb {
    background: rgba(128, 128, 128, 0.2);
    border-radius: 3px;
}

.content-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 1rem;
    color: var(--text-muted);
}

/* ── Detail View ── */
.detail {
    padding: 2rem 3rem;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 1rem;
}

.detail-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.ticker-lg {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #60a5fa;
    padding: 0.2rem 0.6rem;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: 700;
}

[data-theme="light"] .ticker-lg {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
    color: #2563eb;
}

.detail-header h2 {
    font-size: 1.3rem;
    font-weight: 800;
}

.detail-header time {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    padding-top: 0.25rem;
}

.detail-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--card-border);
}

/* ── Links ── */
.detail-links {
    display: flex;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.9rem;
    border-radius: 7px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    background: var(--hover-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
}

.link-btn:hover {
    background: var(--active-bg);
    color: var(--text);
    transform: translateY(-1px);
}

.link-btn.primary {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.25);
    color: var(--accent-hover);
}

.link-btn.primary:hover {
    background: rgba(59, 130, 246, 0.18);
}

/* ── Content Body ── */
.detail-content {
    background: var(--content-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    overflow: hidden;
}

.detail-content.no-content {
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
}

.detail-content.no-content code {
    background: var(--code-bg);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    font-size: 0.85em;
}

.content-body {
    padding: 1.25rem 1.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.75;
    max-height: 70vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(128, 128, 128, 0.15) transparent;
}

.content-body::-webkit-scrollbar {
    width: 4px;
}

.content-body::-webkit-scrollbar-track {
    background: transparent;
}

.content-body::-webkit-scrollbar-thumb {
    background: rgba(128, 128, 128, 0.15);
    border-radius: 3px;
}

.content-body mark {
    background-color: var(--mark-bg);
    color: var(--mark-color);
    padding: 0 0.12rem;
    border-radius: 2px;
}

/* ── Loading ── */
.loading-state {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 2rem;
    color: var(--text-muted);
}

.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--card-border);
    border-radius: 50%;
    border-top-color: var(--accent);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ── Responsive ── */
/* ── Detail Buttons ── */
.icon-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    border-radius: 6px;
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}
.icon-toggle-btn:hover {
    color: var(--text);
    border-color: var(--text-muted);
}
.icon-toggle-btn.active {
    background: var(--active-bg);
    color: var(--accent);
    border-color: var(--accent);
}
.icon-toggle-btn .btn-label {
    font-weight: 500;
}

/* ── Markdown Content ── */
.markdown-rendered {
    color: var(--text);
    line-height: 1.7;
    font-size: 0.9rem;
}
.markdown-rendered h1, .markdown-rendered h2, .markdown-rendered h3, .markdown-rendered h4 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-weight: 700;
    color: var(--text);
}
.markdown-rendered h2 {
    font-size: 1.25em;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 0.3em;
}
.markdown-rendered h3 { font-size: 1.1em; }
.markdown-rendered p { margin-bottom: 1em; }
.markdown-rendered table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.2em;
    font-size: 0.85rem;
    border: 1px solid var(--text-secondary);
}
.markdown-rendered th,
.markdown-rendered td {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--text-secondary);
}
.markdown-rendered th {
    background: var(--active-bg);
    font-weight: 600;
}
.markdown-rendered tbody tr:nth-child(even) {
    background: var(--hover-bg);
}
.markdown-rendered pre,
.markdown-rendered code {
    background: var(--hover-bg);
    border-radius: 4px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}
.markdown-rendered code {
    padding: 0.2em 0.4em;
    font-size: 0.85em;
}
.markdown-rendered pre {
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1em;
}
.markdown-rendered pre code {
    padding: 0;
    background: transparent;
    font-size: 0.85rem;
}
.markdown-rendered blockquote {
    border-left: 4px solid var(--accent);
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    background: var(--hover-bg);
    margin: 1em 0;
    border-radius: 0 4px 4px 0;
}
.markdown-rendered blockquote p:last-child { margin-bottom: 0; }
.markdown-rendered ul,
.markdown-rendered ol {
    margin-bottom: 1em;
    padding-left: 2rem;
}
.markdown-rendered li { margin-bottom: 0.25rem; }

@media (max-width: 480px) {
    .sidebar {
        width: 100%;
        min-width: unset;
        max-height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--card-border);
    }

    .app-layout {
        flex-direction: column;
    }

    .detail {
        padding: 1.25rem;
    }
}