/* ========================================
   PROJECT DASHBOARD - STYLES
   ======================================== */

:root {
    --color-primary: #6366f1;
    --color-primary-light: #eef2ff;
    --color-primary-dark: #4f46e5;
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: var(--font-sans);
    background: var(--color-gray-50);
    color: var(--color-gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

/* ========================================
   PASSWORD SCREEN
   ======================================== */
.password-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-800) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.password-container {
    text-align: center;
    padding: 48px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    width: 90%;
}

.password-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.password-container h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.password-container > p {
    font-size: 14px;
    color: var(--color-gray-500);
    margin-bottom: 24px;
}

#password-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

#password-input {
    padding: 14px 16px;
    font-size: 16px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

#password-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

#password-form button {
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s;
}

#password-form button:hover {
    background: var(--color-primary-dark);
}

.password-error {
    color: var(--color-danger);
    font-size: 14px;
    margin-top: 12px;
    min-height: 20px;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

/* ========================================
   HEADER
   ======================================== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-gray-200);
}

.header__title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--color-gray-900);
}

.header__title svg {
    color: var(--color-primary);
}

.header__right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header__date {
    font-size: 14px;
    color: var(--color-gray-500);
}

.header__btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-600);
    background: #fff;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

.header__btn:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.header__btn--settings {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.header__btn--settings:hover {
    background: var(--color-primary-light);
}

/* ========================================
   YEARLY SUMMARY
   ======================================== */
.yearly-summary {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    padding: 20px 24px;
    margin-bottom: 16px;
}

.yearly-summary__header {
    margin-bottom: 16px;
}

.yearly-summary__header h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-700);
}

.yearly-summary__header h2 svg {
    color: var(--color-primary);
}

.yearly-summary__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.yearly-summary__card {
    padding: 16px 20px;
    border-radius: var(--radius);
    background: var(--color-gray-50);
}

.yearly-summary__card--sales {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(99, 102, 241, 0.05) 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.yearly-summary__card--orders {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.yearly-summary__label {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-gray-500);
    margin-bottom: 8px;
}

.yearly-summary__value {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 10px;
}

.yearly-summary__current {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-gray-800);
}

.yearly-summary__separator {
    font-size: 16px;
    color: var(--color-gray-400);
}

.yearly-summary__target {
    font-size: 14px;
    color: var(--color-gray-500);
}

.yearly-summary__progress {
    height: 6px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
}

.yearly-summary__card--sales .yearly-summary__progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 3px;
    transition: width 0.3s;
}

.yearly-summary__card--orders .yearly-summary__progress-bar {
    height: 100%;
    background: var(--color-success);
    border-radius: 3px;
    transition: width 0.3s;
}

.yearly-summary__percentage {
    font-size: 11px;
    color: var(--color-gray-500);
    text-align: right;
}

/* ========================================
   SUMMARY
   ======================================== */
.summary {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.summary__card {
    background: #fff;
    padding: 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
}

.summary__card--main {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    border: none;
}

.summary__label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-500);
    margin-bottom: 8px;
}

.summary__card--main .summary__label {
    color: rgba(255, 255, 255, 0.8);
}

.summary__value {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
}

.summary__current {
    font-size: 28px;
    font-weight: 700;
}

.summary__separator {
    font-size: 20px;
    opacity: 0.6;
}

.summary__target {
    font-size: 18px;
    opacity: 0.8;
}

.summary__progress {
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.summary__progress-bar {
    height: 100%;
    background: #fff;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.summary__percentage {
    font-size: 13px;
    font-weight: 500;
    opacity: 0.9;
}

.summary__number {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-gray-900);
}

@media (max-width: 1024px) {
    .summary {
        grid-template-columns: 1fr 1fr;
    }
    .summary__card--main {
        grid-column: 1 / -1;
    }
}

@media (max-width: 640px) {
    .summary {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   TABS
   ======================================== */
.tabs {
    display: flex;
    gap: 4px;
    background: var(--color-gray-100);
    padding: 4px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.tabs__btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-600);
    background: transparent;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

.tabs__btn:hover {
    color: var(--color-gray-800);
    background: rgba(255, 255, 255, 0.5);
}

.tabs__btn.is-active {
    color: var(--color-primary);
    background: #fff;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   VIEW CONTAINER
   ======================================== */
.view {
    display: none;
}

.view.is-active {
    display: block;
}

/* ========================================
   BOARD VIEW (A案)
   ======================================== */
.board__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.board__header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gray-900);
}

.board__filters {
    display: flex;
    gap: 12px;
}

.board__filters select {
    padding: 8px 12px;
    font-size: 14px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    background: #fff;
    cursor: pointer;
    outline: none;
}

.board__filters select:focus {
    border-color: var(--color-primary);
}

.board__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

/* Project Card */
.project-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s;
}

.project-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.project-card__header {
    padding: 16px;
    border-bottom: 1px solid var(--color-gray-100);
}

.project-card__top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.project-card__category {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 4px 8px;
    border-radius: 4px;
}

.project-card__priority {
    font-size: 11px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 4px;
}

.project-card__priority--high {
    color: var(--color-danger);
    background: var(--color-danger-light);
}

.project-card__priority--medium {
    color: var(--color-warning);
    background: var(--color-warning-light);
}

.project-card__priority--low {
    color: var(--color-gray-600);
    background: var(--color-gray-100);
}

.project-card__name {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 4px;
}

.project-card__status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--color-gray-500);
}

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

.project-card__status-dot--not_started {
    background: var(--color-gray-400);
}

.project-card__status-dot--in_progress {
    background: var(--color-primary);
}

.project-card__status-dot--completed {
    background: var(--color-success);
}

.project-card__status-dot--on_hold {
    background: var(--color-warning);
}

.project-card__body {
    padding: 16px;
}

.project-card__amount {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 8px;
}

.project-card__current {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-gray-900);
}

.project-card__task-status {
    font-size: 12px;
    color: var(--color-gray-500);
    margin-bottom: 8px;
}

.project-card__progress {
    height: 6px;
    background: var(--color-gray-100);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 12px;
}

.project-card__progress-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}

.project-card__progress-bar--low {
    background: var(--color-danger);
}

.project-card__progress-bar--medium {
    background: var(--color-warning);
}

.project-card__progress-bar--high {
    background: var(--color-success);
}

.project-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--color-gray-500);
}

.project-card__assignee {
    display: flex;
    align-items: center;
    gap: 4px;
}

.project-card__date {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Todos */
.todos {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    padding: 20px;
}

.todos__header {
    margin-bottom: 16px;
}

.todos__header h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-900);
}

.todos__list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.todo-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--color-gray-50);
    border-radius: var(--radius);
    transition: background 0.2s;
}

.todo-item:hover {
    background: var(--color-gray-100);
}

.todo-item__checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-300);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.todo-item__checkbox.is-checked {
    background: var(--color-success);
    border-color: var(--color-success);
}

.todo-item__checkbox svg {
    display: none;
    color: #fff;
}

.todo-item__checkbox.is-checked svg {
    display: block;
}

.todo-item__text {
    flex: 1;
    font-size: 14px;
    color: var(--color-gray-700);
}

.todo-item.is-completed .todo-item__text {
    text-decoration: line-through;
    color: var(--color-gray-400);
}

.todo-item__due {
    font-size: 12px;
    color: var(--color-gray-500);
}

.todo-item__priority {
    font-size: 11px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 4px;
}

.todo-item__priority--high {
    color: var(--color-danger);
    background: var(--color-danger-light);
}

.todo-item__priority--medium {
    color: var(--color-warning);
    background: var(--color-warning-light);
}

.todo-item__priority--low {
    color: var(--color-gray-600);
    background: var(--color-gray-100);
}

/* 完了ボタン */
.todo-item__complete-btn {
    display: none;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 500;
    color: #fff;
    background: var(--color-success);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.todo-item__complete-btn:hover {
    background: #059669;
}

.todo-item.is-checked .todo-item__complete-btn {
    display: inline-flex;
}

/* ========================================
   COMPLETED CALENDAR
   ======================================== */
.completed-calendar {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    padding: 20px;
    margin-top: 24px;
}

.completed-calendar__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.completed-calendar__header h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-800);
}

.completed-calendar__header h2 svg {
    color: var(--color-success);
}

.completed-calendar__nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.completed-calendar__nav-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--color-gray-600);
    transition: all 0.2s;
}

.completed-calendar__nav-btn:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.completed-calendar__period {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-700);
    min-width: 100px;
    text-align: center;
}

.completed-calendar__weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: 8px;
    text-align: center;
}

.completed-calendar__weekdays span {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-gray-500);
    padding: 8px 0;
}

.completed-calendar__weekdays span:first-child {
    color: var(--color-danger);
}

.completed-calendar__weekdays span:last-child {
    color: var(--color-primary);
}

.completed-calendar__grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.calendar-day {
    min-height: 80px;
    padding: 6px;
    background: var(--color-gray-50);
    border-radius: 4px;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.calendar-day--empty {
    background: transparent;
}

.calendar-day--today {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.calendar-day--weekend {
    background: var(--color-gray-100);
}

.calendar-day__date {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-gray-600);
    margin-bottom: 4px;
}

.calendar-day--today .calendar-day__date {
    color: var(--color-primary);
    font-weight: 600;
}

.calendar-day__tasks {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.calendar-task {
    font-size: 10px;
    padding: 3px 6px;
    background: var(--color-success-light);
    color: #065f46;
    border-radius: 3px;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: all 0.2s;
}

.calendar-task:hover {
    background: var(--color-success);
    color: #fff;
}

.calendar-task--more {
    background: var(--color-gray-200);
    color: var(--color-gray-600);
    text-align: center;
}

.calendar-task--more:hover {
    background: var(--color-gray-300);
    color: var(--color-gray-700);
}

/* ========================================
   GANTT VIEW (B案)
   ======================================== */
.gantt__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.gantt__header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gray-900);
}

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

.gantt__filter {
    padding: 8px 12px;
    font-size: 14px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    background: #fff;
    cursor: pointer;
    outline: none;
    margin-right: 8px;
}

.gantt__filter:focus {
    border-color: var(--color-primary);
}

.gantt__nav-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--color-gray-600);
    transition: all 0.2s;
}

.gantt__nav-btn:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.gantt__period {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-900);
    min-width: 120px;
    text-align: center;
}

.gantt__container {
    display: flex;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.gantt__sidebar {
    width: 200px;
    flex-shrink: 0;
    border-right: 1px solid var(--color-gray-200);
}

.gantt__sidebar-item {
    padding: 8px 16px;
    border-bottom: 1px solid var(--color-gray-100);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-700);
    height: 36px;
    display: flex;
    align-items: center;
}

.gantt__sidebar-header {
    background: var(--color-gray-50);
    font-weight: 600;
    color: var(--color-gray-500);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.gantt__chart-wrapper {
    flex: 1;
    overflow-x: auto;
}

.gantt__timeline {
    display: flex;
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
    height: 36px;
}

.gantt__day {
    min-width: 35px;
    text-align: center;
    padding: 2px 0;
    font-size: 8px;
    color: var(--color-gray-500);
    border-right: 1px solid var(--color-gray-100);
}

.gantt__day-num {
    font-weight: 600;
    color: var(--color-gray-700);
    font-size: 11px;
}

.gantt__day--weekend {
    background: var(--color-gray-100);
}

.gantt__day--today {
    background: var(--color-primary-light);
}

.gantt__day--today .gantt__day-num {
    color: var(--color-primary);
}

.gantt__chart {
    position: relative;
}

.gantt__row {
    height: 36px;
    border-bottom: 1px solid var(--color-gray-100);
    position: relative;
    display: flex;
}

.gantt__cell {
    min-width: 40px;
    border-right: 1px solid var(--color-gray-50);
}

.gantt__cell--weekend {
    background: var(--color-gray-100);
}

.gantt__bar {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 20px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    padding: 0 6px;
    font-size: 11px;
    font-weight: 500;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
    transition: opacity 0.2s;
}

.gantt__bar:hover {
    opacity: 0.9;
}

.gantt__bar--not_started {
    background: var(--color-gray-400);
}

.gantt__bar--in_progress {
    background: #9697e4;
}

.gantt__bar--completed {
    background: var(--color-success);
}

.gantt__bar--on_hold {
    background: var(--color-warning);
}

/* ========================================
   KANBAN VIEW (C案)
   ======================================== */
.kanban {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    min-height: 500px;
}

@media (max-width: 1200px) {
    .kanban {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .kanban {
        grid-template-columns: 1fr;
    }
}

.kanban__column {
    background: var(--color-gray-100);
    border-radius: var(--radius-lg);
    padding: 16px;
    min-height: 400px;
}

.kanban__column-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.kanban__column-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-700);
}

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

.kanban__column-dot--not-started {
    background: var(--color-gray-400);
}

.kanban__column-dot--in-progress {
    background: var(--color-primary);
}

.kanban__column-dot--completed {
    background: var(--color-success);
}

.kanban__column-dot--on-hold {
    background: var(--color-warning);
}

.kanban__column-count {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-gray-500);
    background: #fff;
    padding: 2px 8px;
    border-radius: 10px;
}

.kanban__cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.kanban-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all 0.2s;
}

.kanban-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.kanban-card__category {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 2px 6px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 8px;
}

.kanban-card__name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 12px;
}

.kanban-card__info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--color-gray-500);
}

.kanban-card__amount {
    font-weight: 600;
    color: var(--color-gray-700);
}

.kanban-card__task-status {
    font-size: 11px;
    color: var(--color-gray-500);
    margin-top: 4px;
}

.kanban-card__progress {
    height: 4px;
    background: var(--color-gray-100);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 12px;
}

.kanban-card__progress-bar {
    height: 100%;
    border-radius: 2px;
}

/* ========================================
   MODAL
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.modal__container {
    position: relative;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transform: translateY(20px) scale(0.95);
    transition: transform 0.3s ease;
}

.modal.is-open .modal__container {
    transform: translateY(0) scale(1);
}

.modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 10;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--color-gray-600);
    transition: all 0.2s;
}

.modal__close:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-800);
}

.modal__content {
    max-height: 90vh;
    overflow-y: auto;
}

.modal__header {
    padding: 24px;
    border-bottom: 1px solid var(--color-gray-200);
}

.modal__category {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.modal__title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.modal__description {
    font-size: 14px;
    color: var(--color-gray-500);
}

.modal__body {
    padding: 24px;
}

.modal__info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.modal__info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.modal__info-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-gray-500);
}

.modal__info-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-900);
}

.modal__progress-section {
    margin-bottom: 24px;
}

.modal__progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: 8px;
}

.modal__progress {
    height: 10px;
    background: var(--color-gray-100);
    border-radius: 5px;
    overflow: hidden;
}

.modal__progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 5px;
    transition: width 0.5s ease;
}

.modal__tasks h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 12px;
}

.modal__tasks ul {
    list-style: none;
}

.modal__tasks li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-gray-100);
    font-size: 14px;
    color: var(--color-gray-700);
}

.modal__tasks li:last-child {
    border-bottom: none;
}

.modal__tasks li svg {
    flex-shrink: 0;
}

.modal__tasks li.is-completed {
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.modal__tasks li.is-completed svg {
    color: var(--color-success);
}

.modal__tasks li:not(.is-completed) svg {
    color: var(--color-gray-300);
}

.modal__tasks li {
    cursor: pointer;
    transition: background 0.2s;
    margin: 0 -10px;
    padding-left: 10px;
    padding-right: 10px;
    border-radius: 4px;
}

.modal__tasks li:hover {
    background: var(--color-gray-50);
}

.modal__tasks li .task-checkbox {
    width: 22px;
    height: 22px;
    border: 2px solid var(--color-gray-300);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
}

.modal__tasks li.is-completed .task-checkbox {
    background: var(--color-success);
    border-color: var(--color-success);
}

.modal__tasks li.is-completed .task-checkbox svg {
    color: #fff;
}

.modal__header-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.modal__tasks-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.modal__tasks-header h3 {
    margin-bottom: 0;
}

.modal__tasks-hint {
    font-size: 12px;
    color: var(--color-gray-400);
}

/* ========================================
   RESPONSIVE
   ======================================== */
/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn--primary {
    background: var(--color-primary);
    color: #fff;
}

.btn--primary:hover {
    background: var(--color-primary-dark);
}

.btn--outline {
    background: #fff;
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-300);
}

.btn--outline:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.btn--danger {
    background: var(--color-danger);
    color: #fff;
}

.btn--danger:hover {
    background: #dc2626;
}

.btn--danger.btn--outline {
    background: #fff;
    color: var(--color-danger);
    border-color: var(--color-danger);
}

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

.btn--small {
    padding: 6px 12px;
    font-size: 12px;
}

.btn--full {
    width: 100%;
}

/* ========================================
   FORMS
   ======================================== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.form-grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group--full {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-group label .required {
    color: var(--color-danger);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 12px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group textarea {
    resize: vertical;
}

.form-section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-700);
    margin: 20px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-gray-200);
}

.form-section-title:first-child {
    margin-top: 0;
}

.form-static-text {
    font-size: 14px;
    color: var(--color-gray-700);
    padding: 10px 0;
}

.form-help {
    font-size: 12px;
    color: var(--color-gray-500);
    margin-top: 4px;
}

.form-divider {
    border: none;
    border-top: 1px solid var(--color-gray-200);
    margin: 20px 0;
}

.form-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--color-gray-200);
}

.form-actions__right {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

/* タスク管理（プロジェクト編集モーダル内） */
.form-tasks {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-gray-200);
}

.form-tasks__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.form-tasks__header label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-tasks__list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 400px;
    overflow-y: auto;
    padding: 4px 0;
}

.form-task-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--color-gray-50);
    border-radius: var(--radius);
}

.form-task-item__checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-gray-300);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
    background: #fff;
}

.form-task-item__checkbox.is-checked {
    background: var(--color-success);
    border-color: var(--color-success);
}

.form-task-item__checkbox svg {
    display: none;
    color: #fff;
}

.form-task-item__checkbox.is-checked svg {
    display: block;
}

.form-task-item__input {
    flex: 1;
    padding: 6px 10px;
    font-size: 13px;
    border: 1px solid var(--color-gray-200);
    border-radius: 4px;
    outline: none;
    transition: border-color 0.2s;
}

.form-task-item__input:focus {
    border-color: var(--color-primary);
}

.form-task-item__delete {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: var(--color-gray-400);
    transition: all 0.2s;
}

.form-task-item__delete:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.form-tasks__empty {
    text-align: center;
    padding: 20px;
    color: var(--color-gray-400);
    font-size: 13px;
}

/* ========================================
   BOARD HEADER ACTIONS
   ======================================== */
.board__actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* ========================================
   TODOS HEADER
   ======================================== */
.todos__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

/* ========================================
   MODAL FORM VARIANT
   ======================================== */
.modal__container--form {
    max-width: 700px;
}

.modal__container--small {
    max-width: 480px;
}

/* ========================================
   TODO ITEM EDIT
   ======================================== */
.todo-item {
    cursor: pointer;
}

.todo-item:hover {
    background: var(--color-gray-100);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .form-actions__right {
        width: 100%;
    }
    
    .form-actions__right .btn {
        flex: 1;
    }
    
    .board__actions {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 16px;
    }
    
    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .header__title {
        font-size: 20px;
    }
    
    .tabs {
        flex-wrap: wrap;
    }
    
    .tabs__btn {
        flex: 1 1 auto;
        padding: 10px 16px;
    }
    
    .board__header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .board__filters {
        width: 100%;
    }
    
    .board__filters select {
        flex: 1;
    }
    
    .gantt__sidebar {
        width: 150px;
    }
    
    .modal__info-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   SORTABLE (Drag & Drop)
   ======================================== */
.sortable-ghost {
    opacity: 0.4;
}

.sortable-chosen {
    cursor: grabbing !important;
}

.sortable-drag {
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    transform: rotate(2deg);
}

.project-card {
    cursor: grab;
}

.project-card:active {
    cursor: grabbing;
}

.todo-item {
    cursor: grab;
}

.todo-item:active {
    cursor: grabbing;
}

/* ドラッグハンドルアイコン（オプション） */
.drag-handle {
    cursor: grab;
    opacity: 0.4;
    transition: opacity 0.2s;
}

.drag-handle:hover {
    opacity: 1;
}

.project-card:hover,
.todo-item:hover {
    box-shadow: var(--shadow-md);
}

/* ========================================
   GANTT VIEW - TASK HIERARCHY
   ======================================== */
.gantt__sidebar-project {
    background: var(--color-gray-100);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.gantt__sidebar-project:hover {
    background: var(--color-gray-200);
}

.gantt__project-toggle {
    font-size: 10px;
    margin-right: 6px;
    color: var(--color-gray-400);
}

.gantt__sidebar-task {
    padding-left: 28px !important;
    font-size: 12px;
    font-weight: 400;
    color: var(--color-gray-600);
    background: #fff;
}

.gantt__sidebar-task--empty {
    color: var(--color-gray-400);
    font-style: italic;
}

.gantt__task-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border: 2px solid var(--color-gray-300);
    border-radius: 50%;
    margin-right: 8px;
}

.gantt__task-indicator.is-completed {
    background: var(--color-success);
    border-color: var(--color-success);
}

.gantt__row--project {
    background: var(--color-gray-100);
}

.gantt__row--task {
    background: #fff;
}

.gantt__row--empty {
    opacity: 0.5;
}

.gantt__bar--project {
    height: 14px;
    opacity: 0.4;
    font-size: 0;
}

.gantt__bar--task {
    height: 18px;
    font-size: 10px;
}

/* ========================================
   TASK FORM - COMPACT STYLE
   ======================================== */
.form-task-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--color-gray-200);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-task-item:hover {
    border-color: var(--color-gray-300);
}

.form-task-item__row {
    display: contents;
}

.form-task-item__drag-handle {
    cursor: grab;
    color: var(--color-gray-300);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 2px;
}

.form-task-item__drag-handle:hover {
    color: var(--color-gray-500);
}

.form-task-item__drag-handle:active {
    cursor: grabbing;
}

.form-task-item--ghost {
    opacity: 0.4;
    background: var(--color-gray-100);
}

.form-task-item--chosen {
    border-color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.form-task-item__checkbox {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.form-task-item__input--text {
    flex: 1;
    min-width: 120px;
    padding: 6px 8px;
    font-size: 13px;
    border: 1px solid transparent;
    border-radius: 4px;
    background: transparent;
    transition: all 0.2s;
}

.form-task-item__input--text:hover {
    background: var(--color-gray-50);
}

.form-task-item__input--text:focus {
    background: #fff;
    border-color: var(--color-primary);
    outline: none;
}

.form-task-item__dates {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.form-task-item__date-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.form-task-item__date-group label {
    font-size: 10px;
    font-weight: 500;
    color: var(--color-gray-400);
    white-space: nowrap;
}

.form-task-item__input--date {
    padding: 4px 6px;
    font-size: 11px;
    border: 1px solid var(--color-gray-200);
    border-radius: 4px;
    outline: none;
    background: var(--color-gray-50);
    transition: all 0.2s;
    width: 110px;
}

.form-task-item__input--date:hover {
    border-color: var(--color-gray-300);
}

.form-task-item__input--date:focus {
    border-color: var(--color-primary);
    background: #fff;
}

.form-task-item__date-separator {
    color: var(--color-gray-300);
    font-size: 11px;
}

.form-task-item__delete {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.form-task-item__delete svg {
    width: 14px;
    height: 14px;
}

/* Goal View Styles */
#goal-view .yearly-summary {
    margin-bottom: 24px;
}

#goal-view .summary {
    margin-bottom: 0;
}

/* Responsive for task form */
@media (max-width: 768px) {
    .form-task-item {
        flex-wrap: wrap;
    }
    
    .form-task-item__dates {
        width: 100%;
        padding-left: 24px;
        margin-top: 4px;
    }
    
    .form-task-item__input--date {
        flex: 1;
    }
}