:root {
    --bg-color: #ffffff;
    --text-main: #000000;
    --text-muted: #666666;
    --border-color: #eaeaea;
    --shadow-soft: 0 20px 40px -10px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 25px 50px -12px rgba(0, 0, 0, 0.12);
    --radius-capsule: 9999px;
    --radius-card: 20px;
    --danger: #ef4444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    padding: 40px 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 50px;
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-capsule);
    border: 2px solid var(--text-main);
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    background-color: transparent;
    color: var(--text-main);
}

.btn-black {
    background-color: var(--text-main);
    color: var(--bg-color);
    box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.2);
}

.btn-black:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 20px -4px rgba(0, 0, 0, 0.25);
}

.btn-outline {
    color: var(--text-main);
    border-color: var(--border-color);
}

.btn-outline:hover {
    background-color: #f5f5f5;
    border-color: var(--text-main);
}

.btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    font-size: 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.control-panel {
    background: var(--bg-color);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    padding: 30px;
    margin-bottom: 40px;
    border: 1px solid var(--border-color);
}

.week-navigator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.week-label {
    font-size: 1.25rem;
    font-weight: 700;
    min-width: 200px;
    text-align: center;
}

.workday-selector {
    text-align: center;
    margin-bottom: 20px;
}

.day-toggles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.day-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: var(--radius-capsule);
    border: 1px solid var(--border-color);
    background: #f9f9f9;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    user-select: none;
}

.day-toggle.active {
    background: var(--text-main);
    color: var(--bg-color);
    border-color: var(--text-main);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.day-toggle-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 4px;
    line-height: 1.2;
    display: inline-block;
    white-space: nowrap;
}

.day-toggle-badge.holiday {
    background-color: #fee2e2;
    color: #ef4444;
}

.day-toggle.active .day-toggle-badge.holiday {
    background-color: #ef4444;
    color: #ffffff;
}

.day-toggle-badge.workday {
    background-color: #fef3c7;
    color: #d97706;
}

.day-toggle.active .day-toggle-badge.workday {
    background-color: #d97706;
    color: #ffffff;
}

.day-toggle-name {
    font-size: 0.75rem;
    opacity: 0.85;
}

.daily-count-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.daily-count-wrapper input {
    width: 60px;
    text-align: center;
    font-size: 1.1rem;
    padding: 6px 12px;
    border-radius: var(--radius-capsule);
    border: 2px solid var(--border-color);
    outline: none;
}

.daily-count-wrapper input:focus {
    border-color: var(--text-main);
}

.mode-switch-wrapper {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}

.mode-switch-btn {
    padding: 8px 22px;
    border-radius: var(--radius-capsule);
    border: 1.5px solid var(--border-color);
    background: #f9f9f9;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    user-select: none;
}

.mode-switch-btn:hover {
    border-color: var(--text-main);
    color: var(--text-main);
}

.mode-switch-btn.active {
    background: var(--text-main);
    color: var(--bg-color);
    border-color: var(--text-main);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.group-dropdown-wrapper {
    position: relative;
    display: inline-block;
    margin-top: 4px;
}

.group-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-capsule);
    background-color: var(--text-main);
    color: var(--bg-color);
    letter-spacing: 0.02em;
    border: none;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
    line-height: 1.4;
    outline: none;
}

.group-tag:hover {
    opacity: 0.88;
    transform: translateY(-1px);
}

.group-tag-arrow {
    display: inline-block;
    width: 8px;
    height: 5px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.group-tag.active .group-tag-arrow {
    transform: rotate(180deg);
}

.group-tag.group-tag-empty {
    background-color: transparent;
    color: var(--text-muted);
    border: 1px dashed var(--border-color);
    font-weight: 500;
}

.group-tag.group-tag-empty:hover {
    border-color: var(--text-main);
    color: var(--text-main);
}

.group-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    z-index: 1000;
    min-width: 90px;
    max-height: 240px;
    overflow-y: auto;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.06);
    padding: 5px;
    animation: fadeInGroupMenu 0.15s ease-out forwards;
}

.group-dropdown-menu.show {
    display: block;
}

.group-dropdown-menu.drop-up {
    top: auto;
    bottom: calc(100% + 4px);
    box-shadow: 0 -10px 25px -5px rgba(0, 0, 0, 0.12), 0 -8px 10px -6px rgba(0, 0, 0, 0.06);
    animation: fadeInGroupMenuUp 0.15s ease-out forwards;
}

@keyframes fadeInGroupMenuUp {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInGroupMenu {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.group-dropdown-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-main);
    cursor: pointer;
    transition: background 0.15s ease;
    white-space: nowrap;
    text-align: center;
}

.group-dropdown-item:hover {
    background: #f3f4f6;
}

.group-dropdown-item.active {
    background: #111827;
    color: #ffffff;
    font-weight: 700;
}

.mode-tag {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-capsule);
    background: #f0f0f0;
    color: var(--text-muted);
    margin-left: 8px;
}

.grid-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 30px;
}

.grid-layout > * {
    min-width: 0;
}

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

@media (max-width: 600px) {
    body {
        padding: 24px 12px;
    }
    .card {
        padding: 20px 14px;
    }
    .leave-capsule {
        width: 52px;
        height: 28px;
    }
}

#matrix-section {
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}

#matrix-table th:first-child,
#matrix-table td:first-child {
    position: sticky;
    left: 0;
    background: var(--bg-color);
    z-index: 1;
}

#matrix-table thead th:first-child {
    z-index: 2;
}

.card {
    background: var(--bg-color);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    padding: 30px;
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.card-content {
    margin-top: 24px;
}

.card-title-fixed {
    cursor: default;
}

.toggle-icon {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
    display: inline-block;
}

.input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.input-group input {
    flex: 1;
    border-radius: var(--radius-capsule);
    border: 1px solid var(--border-color);
    padding: 10px 16px;
    outline: none;
    font-size: 0.95rem;
}
.input-group input:focus {
    border-color: var(--text-main);
}

.staff-list {
    list-style: none;
}
.staff-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}
.staff-item:last-child {
    border-bottom: none;
}
.remove-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    text-decoration: underline;
    white-space: nowrap;
    flex-shrink: 0;
}
.remove-btn:hover {
    color: var(--text-main);
}

table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
}
th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.matrix-cell {
    text-align: center;
    vertical-align: middle;
}

.leave-capsule {
    display: inline-flex;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-capsule);
    overflow: hidden;
    cursor: pointer;
    user-select: none;
    width: 46px;
    height: 24px;
}
.leave-half {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    background: #f9f9f9;
    transition: all 0.2s ease;
}
.leave-half:first-child {
    border-right: 1px solid var(--border-color);
}
.leave-half.active {
    background: var(--text-main);
    color: var(--bg-color);
}

.bundle-check-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background-color: #f9f9f9;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-capsule);
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
}
.bundle-check-label:hover {
    background-color: #f0f0f0;
}
.bundle-check-label input {
    cursor: pointer;
}

select.capsule-select {
    appearance: none;
    background-color: transparent;
    border: 1px solid var(--border-color);
    padding: 8px 32px 8px 16px;
    border-radius: var(--radius-capsule);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-main);
    cursor: pointer;
    outline: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23000000%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: right 12px top 50%;
    background-size: 10px auto;
    display: inline-block;
    margin: 0;
    max-width: 240px;
}
select.capsule-select:focus {
    border-color: var(--text-main);
}

.actions-footer {
    margin-top: 30px;
    display: flex;
    justify-content: flex-end;
    gap: 16px;
}

#schedule-export-wrapper {
    background: var(--bg-color);
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.data-management-panel {
    text-align: center;
}
.data-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.danger-btn {
    color: var(--danger);
    border-color: var(--border-color);
}
.danger-btn:hover {
    background-color: #fef2f2;
    border-color: #fca5a5;
}
.info-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.btn-toggle-active {
    background-color: var(--text-main);
    color: var(--bg-color);
    border-color: var(--text-main);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.btn-toggle-active:hover {
    background-color: #222222;
    color: var(--bg-color);
    border-color: #222222;
}