:root {
    --bg-dark: #070913;
    --bg-sidebar: #0f111a;
    --bg-panel: #131522;
    --bg-terminal: #090a0f;
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'Fira Code', monospace;
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    
    /* ブランチカラー */
    --color-main: #38bdf8;     /* 水色 */
    --color-feature: #a855f7;  /* 紫 */
    --color-hotfix: #f43f5e;   /* 赤 */
    --color-dev: #22c55e;      /* 緑 */
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-sans);
    height: 100vh;
    overflow: hidden;
    display: flex;
}

.app-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100vh;
}

/* ヘッダー */
.app-header {
    height: 64px;
    background-color: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    z-index: 10;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 24px;
}

.logo-text h1 {
    font-size: 18px;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
    background: linear-gradient(135deg, #a5b4fc, #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: 11px;
    color: var(--text-secondary);
}

/* メインレイアウト */
.app-body {
    display: flex;
    flex: 1;
    height: calc(100vh - 64px);
    overflow: hidden;
}

/* サイドバー */
.sidebar {
    width: 320px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    overflow-y: auto;
}

.sidebar-section h2 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

/* シナリオリスト */
.scenario-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.scenario-item {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 14px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.scenario-item:hover {
    background-color: rgba(255, 255, 255, 0.06);
    border-color: rgba(99, 102, 241, 0.3);
}

.scenario-item.active {
    background-color: rgba(99, 102, 241, 0.08);
    border-color: var(--primary-color);
}

.scenario-item h3 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
}

.scenario-item p {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* コマンドリファレンス */
.cmd-ref-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

.cmd-ref-item {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.cmd-ref-item:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.cmd-ref-item:hover code {
    color: white;
}

.cmd-ref-item code {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.ref-note {
    font-size: 10px;
    color: var(--text-secondary);
    display: block;
    opacity: 0.6;
}

/* メインコンテンツエリア */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* ビジュアライザパネル */
.visualizer-panel {
    flex: 1;
    background-color: var(--bg-dark);
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid var(--border-color);
}

.visualizer-header {
    height: 44px;
    background-color: rgba(19, 21, 34, 0.4);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
}

.visualizer-header h3 {
    font-size: 13px;
    font-weight: 600;
}

.legend {
    display: flex;
    gap: 16px;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.dot-main { background-color: var(--color-main); }
.dot-feature { background-color: var(--color-feature); }
.dot-hotfix { background-color: var(--color-hotfix); }

.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

#git-svg {
    width: 100%;
    height: 100%;
    /* ドット背景 */
    background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 0);
    background-size: 20px 20px;
}

/* SVG 要素のアニメーション */
svg circle {
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
}

svg circle:hover {
    r: 12;
    filter: drop-shadow(0 0 8px currentColor);
}

svg path {
    transition: d 0.3s ease, stroke 0.3s ease;
}

svg text {
    user-select: none;
    font-family: var(--font-sans);
}

/* ターミナルパネル */
.terminal-panel {
    height: 280px;
    background-color: var(--bg-terminal);
    display: flex;
    flex-direction: column;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.4);
}

.terminal-header {
    height: 36px;
    background-color: rgba(19, 21, 34, 0.8);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 16px;
    position: relative;
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.t-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.t-red { background-color: #ef4444; }
.t-yellow { background-color: #f59e0b; }
.t-green { background-color: #10b981; }

.terminal-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 11px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.terminal-body {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.5;
}

.terminal-log {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.log-row {
    white-space: pre-wrap;
}

.log-row.system {
    color: var(--text-secondary);
    opacity: 0.8;
}

.log-row.command {
    color: #38bdf8;
}

.log-row.output {
    color: #34d399;
}

.log-row.error {
    color: #f87171;
}

.input-line {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.prompt {
    color: #a855f7;
    white-space: nowrap;
}

#terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    caret-color: #6366f1;
}

/* ボタン共通 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 戻るボタン */
.btn-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    margin-right: 8px;
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* ボタン補助 */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.04);
}

.btn-block {
    display: flex;
    width: 100%;
    padding: 10px 0;
    font-size: 13px;
}

/* 寄付サイドバーカード */
.donation-sidebar-card {
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 12px;
}

.donation-sidebar-card h2 {
    color: var(--primary-color) !important;
    font-size: 12px !important;
    border-bottom: none !important;
    margin-bottom: 8px !important;
    padding-bottom: 0 !important;
}

.sidebar-support-content p {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 12px;
}

/* AdSenseプレースホルダー広告枠 */
.adsense-placeholder-sidebar {
    margin-top: 24px;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    text-align: center;
}

.adsense-label {
    display: block;
    font-size: 9px;
    font-weight: 700;
    color: var(--text-secondary);
    opacity: 0.5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.ads-box {
    height: 100px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ads-box p {
    font-size: 11px;
    color: var(--text-secondary);
    opacity: 0.4;
}

/* モーダルオーバーレイ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(7, 9, 19, 0.85);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

/* モーダルカード */
.modal-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 440px;
    max-width: 90%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    overflow: hidden;
    transform: translateY(20px);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.show .modal-card {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    line-height: 1;
}

.modal-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-promo-text {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.modal-features {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.feat-item {
    font-size: 11.5px;
    color: var(--text-primary);
}

.modal-support-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modal-key-section {
    border-top: 1px solid var(--border-color);
    padding-top: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modal-key-section label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
}

.key-input-row {
    display: flex;
    gap: 8px;
}

.key-input-row input {
    flex: 1;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 8px 12px;
    font-size: 13px;
    outline: none;
}

.key-input-row input:focus {
    border-color: var(--primary-color);
}

.key-help {
    font-size: 10px;
    color: var(--text-secondary);
    opacity: 0.5;
}

/* トースト */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(19, 21, 34, 0.95);
    border: 1px solid var(--primary-color);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    z-index: 300;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    backdrop-filter: blur(8px);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* カスタムツールチップ */
.git-tooltip {
    position: fixed;
    background: rgba(15, 17, 26, 0.95);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    padding: 12px;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 11px;
    pointer-events: none;
    z-index: 500;
    opacity: 0;
    transition: opacity 0.15s ease;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-family: var(--font-mono);
}

.git-tooltip.show {
    opacity: 1;
}

.tooltip-sha {
    color: #f59e0b;
    font-weight: bold;
}

.tooltip-branch {
    font-size: 10px;
    color: var(--text-secondary);
}

.tooltip-msg {
    margin-top: 4px;
    font-family: var(--font-sans);
    color: #e2e8f0;
}