:root {
    --color-base: #dbbea1;
    --color-base-light: #e6d0ba; /* 少し明るくしたベースカラー */
    --color-background: #f7f5f2;
    --color-white: #ffffff;
    --color-text: #333333;
    --color-text-light: #6b6560;
    --color-border: #e8e4df;

    /* ポイント別カラー */
    --color-pt0: #9d9590;
    --color-pt1: #578fcc;
    --color-pt2: #30ad93;
    --color-pt3: #ddb51c;
    --color-pt5: #d97e30;
    --color-pt8: #c8560b;
    
    --max-width: 480px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: "Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--color-base);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px;
}

/* ヘッダー */
header {
    margin-bottom: 0;
    padding: 20px 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
}

.logo {
    width: 56px;
    height: 56px;
}

header h1 {
    color: var(--color-white);
    font-size: 2rem;
    font-weight: 900;
    margin: 0;
}

.tagline {
    color: var(--color-white);
    font-size: 1rem;
    margin: 0;
    opacity: 0.9;
    letter-spacing: 1px;
}

/* フォーム */
.task-form {
    background: transparent;
    padding: 10px 0;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.task-input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    transition: var(--transition);
    background: var(--color-white);
}

.task-input:focus {
    outline: none;
    border-color: var(--color-base);
}

/* ポイントセレクター */
.point-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.point-label {
    position: relative;
}

.point-label input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.point-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-white);
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.point-badge .point-number {
    font-family: "Staatliches", sans-serif;
    font-size: 1.6rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    display: block;
}

/* ポイントバッジの色 */
.point-badge.pt-0 .point-number,
.point-badge.pt-0 .point-unit {
    color: var(--color-pt0);
}

.point-badge.pt-1 .point-number,
.point-badge.pt-1 .point-unit {
    color: var(--color-pt1);
}

.point-badge.pt-2 .point-number,
.point-badge.pt-2 .point-unit {
    color: var(--color-pt2);
}

.point-badge.pt-3 .point-number,
.point-badge.pt-3 .point-unit {
    color: var(--color-pt3);
}

.point-badge.pt-5 .point-number,
.point-badge.pt-5 .point-unit {
    color: var(--color-pt5);
}

.point-badge.pt-8 .point-number,
.point-badge.pt-8 .point-unit {
    color: var(--color-pt8);
}

.point-badge .point-unit {
    font-family: "Lato", sans-serif;
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    display: block;
    margin-top: -2px;
}

.point-label input[type="radio"]:checked + .point-badge {
    border: none;
}

.point-label input[type="radio"]:checked + .point-badge .point-number,
.point-label input[type="radio"]:checked + .point-badge .point-unit {
    color: var(--color-white);
}

.point-label input[type="radio"]:checked + .pt-0 { background-color: var(--color-pt0); }
.point-label input[type="radio"]:checked + .pt-1 { background-color: var(--color-pt1); }
.point-label input[type="radio"]:checked + .pt-2 { background-color: var(--color-pt2); }
.point-label input[type="radio"]:checked + .pt-3 { background-color: var(--color-pt3); }
.point-label input[type="radio"]:checked + .pt-5 { background-color: var(--color-pt5); }
.point-label input[type="radio"]:checked + .pt-8 { background-color: var(--color-pt8); }

/* ボタン */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background-color: #3a4a5c;
    color: var(--color-white);
    width: 100%;
    justify-content: center;
}

.btn-primary:hover {
    background-color: #3a4a5c;
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--color-border);
    color: var(--color-text);
}

.btn-danger {
    background-color: #e74c3c;
    color: var(--color-white);
}

.btn-link {
    background: none;
    border: none;
    color: #3a4a5c;
    cursor: pointer;
    padding: 10px;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-link:hover {
    color: #3a4a5c;
    opacity: 0.8;
}

/* 週間サマリー */
.week-summary {
    text-align: center;
    margin-bottom: 20px;
}

.summary-content {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* タスクリスト */
.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* 完了タスクと未完了タスクの視覚的分離 */
.task-item.done:first-of-type {
    margin-top: 20px;
    position: relative;
}

.task-item.done:first-of-type::before {
    content: "";
    position: absolute;
    top: -15px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-border);
}

.task-item {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    transition: var(--transition);
    cursor: pointer;
}

.task-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.task-item.done {
    opacity: 0.6;
}

.task-item.done .task-title {
    text-decoration: line-through;
    color: var(--color-text-light);
}

.task-status-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: var(--color-white);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.task-status-btn:hover {
    transform: scale(1.1);
}

.task-item.unstarted.pt-0 .task-status-btn {
    border-color: var(--color-pt0);
}

.task-item.unstarted.pt-0 .task-status-btn i {
    color: var(--color-pt0);
}

.task-item.unstarted.pt-1 .task-status-btn {
    border-color: var(--color-pt1);
}

.task-item.unstarted.pt-1 .task-status-btn i {
    color: var(--color-pt1);
}

.task-item.unstarted.pt-2 .task-status-btn {
    border-color: var(--color-pt2);
}

.task-item.unstarted.pt-2 .task-status-btn i {
    color: var(--color-pt2);
}

.task-item.unstarted.pt-3 .task-status-btn {
    border-color: var(--color-pt3);
}

.task-item.unstarted.pt-3 .task-status-btn i {
    color: var(--color-pt3);
}

.task-item.unstarted.pt-5 .task-status-btn {
    border-color: var(--color-pt5);
}

.task-item.unstarted.pt-5 .task-status-btn i {
    color: var(--color-pt5);
}

.task-item.unstarted.pt-8 .task-status-btn {
    border-color: var(--color-pt8);
}

.task-item.unstarted.pt-8 .task-status-btn i {
    color: var(--color-pt8);
}

/* Doingステータス - ポイント別背景色 */
.task-item.doing.pt-0 {
    background: var(--color-pt0);
}

.task-item.doing.pt-1 {
    background: var(--color-pt1);
}

.task-item.doing.pt-2 {
    background: var(--color-pt2);
}

.task-item.doing.pt-3 {
    background: var(--color-pt3);
}

.task-item.doing.pt-5 {
    background: var(--color-pt5);
}

.task-item.doing.pt-8 {
    background: var(--color-pt8);
}

.task-item.doing .task-title {
    color: var(--color-white);
}

.task-item.doing .task-point {
    background: transparent;
}

.task-item.doing .task-point,
.task-item.doing .point-number,
.task-item.doing .point-unit {
    color: var(--color-white);
}


.task-item.doing .task-status-btn {
    background: var(--color-white);
    position: relative;
}

.task-item.doing.pt-0 .task-status-btn {
    border-color: var(--color-pt0);
}

.task-item.doing.pt-0 .task-status-btn i {
    color: var(--color-pt0);
}

.task-item.doing.pt-1 .task-status-btn {
    border-color: var(--color-pt1);
}

.task-item.doing.pt-1 .task-status-btn i {
    color: var(--color-pt1);
}

.task-item.doing.pt-2 .task-status-btn {
    border-color: var(--color-pt2);
}

.task-item.doing.pt-2 .task-status-btn i {
    color: var(--color-pt2);
}

.task-item.doing.pt-3 .task-status-btn {
    border-color: var(--color-pt3);
}

.task-item.doing.pt-3 .task-status-btn i {
    color: var(--color-pt3);
}

.task-item.doing.pt-5 .task-status-btn {
    border-color: var(--color-pt5);
}

.task-item.doing.pt-5 .task-status-btn i {
    color: var(--color-pt5);
}

.task-item.doing.pt-8 .task-status-btn {
    border-color: var(--color-pt8);
}

.task-item.doing.pt-8 .task-status-btn i {
    color: var(--color-pt8);
}

/* Doingボタンホバー時の効果（デスクトップのみ） */
@media (hover: hover) {
    .task-item.doing .task-status-btn:hover {
        transform: scale(1.1);
        opacity: 0.9;
    }
}

/* Doneステータス - ポイント別背景色 */
.task-item.done .task-point {
    background: transparent;
}

.task-item.done.pt-0 .task-point,
.task-item.done.pt-0 .point-number,
.task-item.done.pt-0 .point-unit {
    color: var(--color-pt0);
}

.task-item.done.pt-1 .task-point,
.task-item.done.pt-1 .point-number,
.task-item.done.pt-1 .point-unit {
    color: var(--color-pt1);
}

.task-item.done.pt-2 .task-point,
.task-item.done.pt-2 .point-number,
.task-item.done.pt-2 .point-unit {
    color: var(--color-pt2);
}

.task-item.done.pt-3 .task-point,
.task-item.done.pt-3 .point-number,
.task-item.done.pt-3 .point-unit {
    color: var(--color-pt3);
}

.task-item.done.pt-5 .task-point,
.task-item.done.pt-5 .point-number,
.task-item.done.pt-5 .point-unit {
    color: var(--color-pt5);
}

.task-item.done.pt-8 .task-point,
.task-item.done.pt-8 .point-number,
.task-item.done.pt-8 .point-unit {
    color: var(--color-pt8);
}

.task-item.done.pt-0 .task-status-btn {
    background: var(--color-pt0);
    border-color: var(--color-pt0);
}

.task-item.done.pt-1 .task-status-btn {
    background: var(--color-pt1);
    border-color: var(--color-pt1);
}

.task-item.done.pt-2 .task-status-btn {
    background: var(--color-pt2);
    border-color: var(--color-pt2);
}

.task-item.done.pt-3 .task-status-btn {
    background: var(--color-pt3);
    border-color: var(--color-pt3);
}

.task-item.done.pt-5 .task-status-btn {
    background: var(--color-pt5);
    border-color: var(--color-pt5);
}

.task-item.done.pt-8 .task-status-btn {
    background: var(--color-pt8);
    border-color: var(--color-pt8);
}

.task-item.done .task-status-btn i {
    color: var(--color-white);
}

.task-content {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

.task-title {
    flex: 1;
    font-size: 1rem;
    margin-right: 10px;
}

.task-point {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    color: var(--color-white);
    margin-right: 10px;
    line-height: 1;
    flex-shrink: 0;
}

.task-point .point-number {
    font-family: "Staatliches", sans-serif;
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    display: block;
}

.task-point .point-unit {
    font-family: "Lato", sans-serif;
    font-size: 0.55rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    display: block;
    margin-top: -3px;
}

.task-item.unstarted .task-point {
    background: transparent;
}

.task-item.unstarted.pt-0 .task-point,
.task-item.unstarted.pt-0 .point-number,
.task-item.unstarted.pt-0 .point-unit {
    color: var(--color-pt0);
}

.task-item.unstarted.pt-1 .task-point,
.task-item.unstarted.pt-1 .point-number,
.task-item.unstarted.pt-1 .point-unit {
    color: var(--color-pt1);
}

.task-item.unstarted.pt-2 .task-point,
.task-item.unstarted.pt-2 .point-number,
.task-item.unstarted.pt-2 .point-unit {
    color: var(--color-pt2);
}

.task-item.unstarted.pt-3 .task-point,
.task-item.unstarted.pt-3 .point-number,
.task-item.unstarted.pt-3 .point-unit {
    color: var(--color-pt3);
}

.task-item.unstarted.pt-5 .task-point,
.task-item.unstarted.pt-5 .point-number,
.task-item.unstarted.pt-5 .point-unit {
    color: var(--color-pt5);
}

.task-item.unstarted.pt-8 .task-point,
.task-item.unstarted.pt-8 .point-number,
.task-item.unstarted.pt-8 .point-unit {
    color: var(--color-pt8);
}


/* 空の状態 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-light);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* モーダル */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(219, 190, 161, 0.9); /* var(--color-base) with opacity */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background: var(--color-base-light);
    border-radius: var(--border-radius);
    max-width: var(--max-width);
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}


/* モーダル内のフォーム */
#edit-task-form {
    padding: 20px;
}

/* ステータス変更ボタン */
.status-actions {
    margin: 20px 0;
    padding: 15px;
    background: var(--color-base);
    border-radius: var(--border-radius);
}

.status-label {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 10px;
    font-weight: 700;
}

.status-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-status {
    flex: 1;
    padding: 10px 15px;
    border: 2px solid var(--color-border);
    background: var(--color-white);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--color-text);
    min-width: 100px;
}

.btn-status:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-status.active {
    background: #3a4a5c;
    color: var(--color-white);
    border-color: #3a4a5c;
}

.btn-status.active-done {
    background: #3a4a5c;
    color: var(--color-white);
    border-color: #3a4a5c;
}

.modal-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.modal-actions .btn {
    flex: 1;
    min-width: 100px;
}

/* フッター */
footer {
    text-align: center;
    padding: 40px 20px 20px;
    color: var(--color-text-light);
    font-size: 0.85rem;
}

/* ユーティリティクラス */
.hidden {
    display: none !important;
}

/* レスポンシブデザイン */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }

    .header-content {
        flex-wrap: wrap;
    }

    .logo {
        width: 48px;
        height: 48px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .tagline {
        font-size: 0.9rem;
    }

    .point-selector {
        gap: 8px;
    }

    /* モバイルでもPC版と同じサイズを維持 */

    .task-point {
        width: 42px;
        height: 42px;
    }

    .task-point .point-number {
        font-size: 2rem;
    }

    .task-point .point-unit {
        font-size: 0.55rem;
    }

    .modal-actions {
        flex-direction: column;
    }

    .modal-actions .btn {
        width: 100%;
    }
}

/* アニメーション */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.task-item {
    animation: slideIn 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

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

/* ドラッグ中のスタイル */
.task-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

/* ドロップ対象のスタイル */
.task-item.drag-over {
    border-top: 3px solid var(--color-base);
    padding-top: 12px;
}

/* フルスクリーンステータス変更オーバーレイ */
.status-overlay-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transform: scale(0.98);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.status-overlay-fullscreen.active {
    opacity: 1;
    transform: scale(1);
}

.status-overlay-fullscreen.pt-0 {
    background: var(--color-pt0);
}

.status-overlay-fullscreen.pt-1 {
    background: var(--color-pt1);
}

.status-overlay-fullscreen.pt-2 {
    background: var(--color-pt2);
}

.status-overlay-fullscreen.pt-3 {
    background: var(--color-pt3);
}

.status-overlay-fullscreen.pt-5 {
    background: var(--color-pt5);
}

.status-overlay-fullscreen.pt-8 {
    background: var(--color-pt8);
}

.status-message-container {
    text-align: center;
    animation: messageSlideUp 0.3s ease-out;
}

.status-message {
    color: var(--color-white);
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: 4px;
    display: inline-block;
    animation: messagePulse 0.4s ease;
}

.status-overlay-fullscreen.fade-out {
    opacity: 0;
    transform: scale(1.05);
}

/* スマホサイズでフォントサイズ調整 */
@media (max-width: 480px) {
    .status-message {
        font-size: 3rem;
        letter-spacing: 3px;
    }
}

@keyframes overlayIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes overlayOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes messageZoom {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes messageSlideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes messagePulse {
    0% {
        transform: scale(0.9);
    }
    40% {
        transform: scale(1.15);
    }
    100% {
        transform: scale(1);
    }
}