/* ==========================================================================
   Design System & Reset
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

:root {
    /* Font */
    --font-sans: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Transition */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadow */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.35);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-pill: 9999px;

    /* Theme: Dark Mode (Default) */
    --bg-base: #0f172a;
    --bg-surface: #1e293b;
    --bg-surface-hover: #334155;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-glass: rgba(15, 23, 42, 0.45);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: rgba(51, 65, 85, 0.7);
    --border-highlight: rgba(148, 163, 184, 0.15);
    
    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --primary-bg-light: rgba(59, 130, 246, 0.15);
    
    --success: #10b981;
    --success-hover: #34d399;
    --success-bg-light: rgba(16, 185, 129, 0.15);
    
    --danger: #ef4444;
    --danger-hover: #f87171;
    --danger-bg-light: rgba(239, 68, 68, 0.15);

    --warning: #f59e0b;
    --warning-hover: #fbbf24;

    --sidebar-width: 260px;
}

/* Light Theme Overrides */
:root.light {
    --bg-base: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-glass: rgba(248, 250, 252, 0.6);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-highlight: rgba(15, 23, 42, 0.05);

    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-bg-light: rgba(37, 99, 235, 0.08);

    --success: #059669;
    --success-hover: #047857;
    --success-bg-light: rgba(5, 150, 105, 0.08);

    --danger: #dc2626;
    --danger-hover: #b91c1c;
    --danger-bg-light: rgba(220, 38, 38, 0.08);

    --warning: #d97706;
    --warning-hover: #b45309;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Scrollbar Style */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ==========================================================================
   Layout Structures
   ========================================================================== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary), var(--success));
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.nav-item button {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
}

.nav-item button:hover {
    color: var(--text-primary);
    background-color: var(--bg-surface-hover);
}

.nav-item.active button {
    color: var(--primary);
    background-color: var(--primary-bg-light);
    font-weight: 600;
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    background-color: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

/* Main Content Area */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    padding: 2rem;
}

/* Header Section */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    gap: 1rem;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.top-stats-bar {
    display: flex;
    gap: 1.5rem;
}

.top-stat-item {
    text-align: right;
}

.top-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.top-stat-value {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ==========================================================================
   Common Cards & Glassmorphism
   ========================================================================== */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.card-glass {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-highlight);
    box-shadow: var(--shadow-md);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.grid-timer-layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 1.5rem;
}

/* ==========================================================================
   Timer Component (Dashboard View)
   ========================================================================== */
.timer-hero-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
    border: 1px solid rgba(59, 130, 246, 0.2);
    position: relative;
    overflow: hidden;
    min-height: 310px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.timer-hero-card.active {
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: var(--shadow-glow);
}

/* Background Glow Effect */
.timer-hero-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(59, 130, 246, 0) 70%);
    pointer-events: none;
}

.timer-hero-card.active::before {
    background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, rgba(16, 185, 129, 0) 70%);
}

.timer-setup-flow {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    width: 100%;
}

/* Client Buttons Grid for Quick Start */
.client-start-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.75rem;
    margin-top: 0.25rem;
}

.client-start-btn {
    background-color: var(--bg-surface-hover);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 0.75rem;
    cursor: pointer;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    transition: all var(--transition-fast);
}

.client-start-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.client-start-name {
    font-weight: 700;
    font-size: 0.88rem;
    line-height: 1.2;
}

.client-start-rate {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.client-start-action {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-pill);
    background-color: var(--primary-bg-light);
    color: var(--primary);
    margin-top: 0.15rem;
}

.project-start-container {
    animation: fade-in 0.3s ease-out;
}

/* Form Styles */
.form-row-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

select, input, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-surface-hover);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-fast);
}

select:focus, input:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-bg-light);
}

textarea {
    resize: vertical;
}

.timer-action-area {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

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

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

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

.btn-secondary {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: var(--border-color);
}

/* Active Timer View */
.active-timer-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0;
    text-align: center;
    width: 100%;
}

.active-task-badges {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.time-counter {
    font-size: 3.5rem;
    font-weight: 700;
    font-family: monospace;
    letter-spacing: 0.05em;
    line-height: 1.1;
    margin-bottom: 0.25rem;
    background: linear-gradient(to right, #3b82f6, #10b981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.time-counter.ticking {
    animation: text-pulse 2s infinite ease-in-out;
}

.active-notes-textarea {
    width: 100%;
    margin-top: 1rem;
    background-color: rgba(15, 23, 42, 0.4);
    border-color: var(--border-highlight);
    resize: none;
    font-size: 0.85rem;
}

/* Quick Switch Board */
.quick-board {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.quick-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.75rem;
    overflow-y: auto;
    max-height: 290px;
    padding-right: 0.25rem;
}

.quick-card {
    background-color: var(--bg-surface-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    cursor: pointer;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 90px;
    transition: all var(--transition-fast);
}

.quick-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.quick-card-client {
    font-size: 0.72rem;
    font-weight: 700;
    opacity: 0.9;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.quick-card-cat {
    font-size: 0.8rem;
    font-weight: 500;
    margin-top: 0.15rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.quick-card-action {
    align-self: flex-end;
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: 0.4rem;
}

.quick-card:hover .quick-card-action {
    color: var(--primary);
}

/* ==========================================================================
   Dashboard Table & Lists (Today Logs)
   ========================================================================== */
.logs-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.logs-section-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.table-wrapper {
    overflow-x: auto;
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.88rem;
}

th {
    background-color: var(--bg-surface-hover);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: var(--bg-surface-hover);
}

.log-time-range {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: block;
}

.log-duration {
    font-weight: 600;
}

.log-notes-cell {
    max-width: 250px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-secondary);
}

.actions-cell {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    background: transparent;
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
}

.icon-btn-danger:hover {
    background-color: var(--danger-bg-light);
    color: var(--danger);
}

/* ==========================================================================
   Submission Helper Panel (提出支援パネル) (New)
   ========================================================================== */
.submission-panel-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 1.5rem;
    align-items: stretch;
}

.submission-rule-box {
    background-color: rgba(15, 23, 42, 0.25);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

.submission-rule-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-highlight);
    padding-bottom: 0.25rem;
}

#submission-rule-display {
    font-size: 0.88rem;
    color: var(--text-primary);
    line-height: 1.5;
    white-space: pre-wrap;
    flex: 1;
}

.light .submission-rule-box {
    background-color: rgba(241, 245, 249, 0.6);
}

.submission-export-box {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* ==========================================================================
   Analytics Layouts
   ========================================================================== */
.analytics-grid-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.analytics-full-row {
    grid-column: span 3;
}

.chart-container {
    position: relative;
    height: 240px;
    width: 100%;
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn-group {
    display: flex;
    gap: 0.5rem;
}

.filter-btn {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

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

/* Summary Cards (Analytics) */
.stat-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-card-info {
    display: flex;
    flex-direction: column;
}

.stat-card-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-card-value {
    font-size: 1.25rem;
    font-weight: 700;
}

/* ==========================================================================
   Modals & Form Layouts
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

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

.modal-content {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 95%;
    max-width: 550px;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 600;
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* ==========================================================================
   Settings Screen Layouts
   ========================================================================== */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.settings-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.settings-card-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.list-manager-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.manager-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-surface-hover);
    border-radius: var(--radius-md);
    font-size: 0.88rem;
}

.manager-item-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.manager-item-info span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.color-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
}

.color-picker-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.color-picker-wrapper input[type="color"] {
    width: 42px;
    height: 42px;
    padding: 0;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background: transparent;
    outline: none;
}

.color-picker-wrapper input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}
.color-picker-wrapper input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--border-color);
    border-radius: 50%;
}

.settings-actions-card {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes text-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

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

.spin {
    animation: spin 1.5s linear infinite;
}

/* View transitions */
.app-view {
    display: none;
    animation: fade-in 0.3s ease-out;
}

.app-view.active {
    display: flex;
    flex-direction: column;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Responsive Queries
   ========================================================================== */
@media (max-width: 1100px) {
    .analytics-grid-row {
        grid-template-columns: 1fr 1fr;
    }
    .analytics-full-row {
        grid-column: span 2;
    }
}

@media (max-width: 900px) {
    .grid-timer-layout {
        grid-template-columns: 1fr;
    }
    .submission-panel-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        padding: 1rem;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .logo-section {
        margin-bottom: 1rem;
        justify-content: center;
    }
    
    .nav-menu {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 0.25rem;
        flex: none;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Firefox */
    }
    
    .nav-menu::-webkit-scrollbar {
        display: none; /* Chrome, Safari */
    }
    
    .nav-item button {
        padding: 0.5rem 0.8rem;
        font-size: 0.85rem;
        white-space: nowrap;
    }
    
    .sidebar-footer {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
        padding: 1rem;
    }
    
    .top-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .top-stats-bar {
        width: 100%;
        justify-content: space-between;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-cards-container {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .settings-grid {
        grid-template-columns: 1fr;
    }
    
    .analytics-grid-row {
        grid-template-columns: 1fr;
    }
    
    .analytics-full-row {
        grid-column: span 1;
    }

    /* スマホ向け追加レイアウト調整 */
    .form-row-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .timer-action-area {
        flex-direction: column;
        gap: 0.75rem;
    }

    .timer-action-area button {
        width: 100% !important;
        flex: none !important;
    }

    .quick-cards-grid {
        grid-template-columns: 1fr;
        max-height: 380px;
    }

    .client-start-grid {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
        gap: 0.5rem;
    }

    .client-start-btn {
        padding: 0.75rem 0.5rem;
    }

    #manual-log-form .grid-3 {
        grid-template-columns: 1fr !important;
        gap: 1rem;
    }
}

/* ==========================================================================
   Expense & Shipping Manager Styles (新規追加)
   ========================================================================== */
.expense-accordion-container {
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    background-color: rgba(15, 23, 42, 0.15);
    overflow: hidden;
    margin-top: 0.5rem;
    transition: all var(--transition-normal);
}

.light .expense-accordion-container {
    background-color: rgba(241, 245, 249, 0.3);
}

.accordion-trigger {
    width: 100%;
    padding: 0.65rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color var(--transition-fast), background-color var(--transition-fast);
    outline: none;
}

.accordion-trigger:hover {
    color: var(--text-primary);
    background-color: var(--bg-surface-hover);
}

.accordion-arrow {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-normal);
}

.expense-accordion-container.open .accordion-arrow {
    transform: rotate(180deg);
}

.accordion-content {
    padding: 0 1rem 1rem 1rem;
    border-top: 1px dashed var(--border-highlight);
    animation: slide-down 0.25s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes slide-down {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Table Log Badges for Expenses/Return Date */
.log-badge-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.4rem;
}

.log-badge-item {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    border: 1px solid transparent;
    line-height: 1.2;
}

.log-badge-return {
    background-color: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    border-color: rgba(59, 130, 246, 0.25);
}

.light .log-badge-return {
    background-color: rgba(37, 99, 235, 0.08);
    color: #1d4ed8;
    border-color: rgba(37, 99, 235, 0.15);
}

.log-badge-expense {
    background-color: rgba(99, 102, 241, 0.12);
    color: #818cf8;
    border-color: rgba(99, 102, 241, 0.25);
}

.light .log-badge-expense {
    background-color: rgba(79, 70, 229, 0.08);
    color: #4f46e5;
    border-color: rgba(79, 70, 229, 0.15);
}