/* ===== إعدادات عامة ===== */
@font-face {
    font-family: 'CustomFont';
    src: url('font.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

:root {
    /* ألوان الوضع الليلي (الافتراضي) */
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --bg-card-hover: #1a2744;
    --bg-input: #1a1a2e;
    --bg-modal: #16213e;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --text-muted: #888888;
    --accent: #5dade2;
    --accent-hover: #7ec8e3;
    --accent-light: rgba(93, 173, 226, 0.15);
    --border: #2a2a4a;
    --danger: #e74c3c;
    --danger-hover: #c0392b;
    --success: #2ecc71;
    --success-light: rgba(46, 204, 113, 0.2);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --overlay: rgba(0, 0, 0, 0.7);
    --header-bg: #16213e;
    --completed-text: #666666;
    --scrollbar-bg: #1a1a2e;
    --scrollbar-thumb: #2a2a4a;
}

/* الوضع النهاري */
[data-theme="light"] {
    --bg-primary: #e8f4f8;
    --bg-secondary: #f0f8ff;
    --bg-card: #ffffff;
    --bg-card-hover: #f5faff;
    --bg-input: #ffffff;
    --bg-modal: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #333333;
    --text-muted: #666666;
    --accent: #2980b9;
    --accent-hover: #3498db;
    --accent-light: rgba(41, 128, 185, 0.1);
    --border: #d5e5f0;
    --danger: #e74c3c;
    --danger-hover: #c0392b;
    --success: #27ae60;
    --success-light: rgba(39, 174, 96, 0.15);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --overlay: rgba(0, 0, 0, 0.5);
    --header-bg: #ffffff;
    --completed-text: #aaaaaa;
    --scrollbar-bg: #f0f8ff;
    --scrollbar-thumb: #c0d8e8;
}

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

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'CustomFont', 'Segoe UI', Tahoma, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    direction: rtl;
    min-height: 100vh;
    padding-top: 60px;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    user-select: none;
    -webkit-user-select: none;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

/* ===== Header ===== */
#mainHeader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    height: 60px;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 16px;
    max-width: 800px;
    margin: 0 auto;
}

.header-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.5px;
}

.header-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.header-btn:hover {
    background-color: var(--accent-light);
}

.header-btn:active {
    background-color: var(--accent-light);
    transform: scale(0.95);
}

.header-btn .material-icons-outlined {
    font-size: 24px;
}

/* ===== Main Content ===== */
#mainContent {
    max-width: 800px;
    margin: 0 auto;
    padding: 16px;
    min-height: calc(100vh - 60px);
}

.page {
    display: none;
    animation: fadeIn 0.3s ease;
}

.page.active {
    display: block;
}

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

/* ===== Date Display ===== */
.date-display {
    text-align: center;
    padding: 16px 0;
    margin-bottom: 16px;
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 500;
    border-bottom: 1px solid var(--border);
}

/* ===== Tasks Container (قابل للتمرير) ===== */
.tasks-container {
    overflow-y: auto;
    max-height: calc(100vh - 200px);
    padding: 4px 0;
}

/* ===== Task Card ===== */
.task-card {
    display: flex;
    align-items: center;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
}

.task-card:hover {
    background-color: var(--bg-card-hover);
    box-shadow: var(--shadow);
}

.task-card:active {
    transform: scale(0.985);
}

.task-card.completed .task-name {
    text-decoration: line-through;
    color: var(--completed-text);
}

.task-name {
    flex: 1;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-word;
    padding-left: 8px;
    transition: color 0.2s ease;
}

.task-checkbox {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 2px solid var(--border);
    background-color: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    margin-left: 4px;
    -webkit-tap-highlight-color: transparent;
}

.task-checkbox:hover {
    border-color: var(--accent);
    background-color: var(--accent-light);
}

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

.task-checkbox .check-icon {
    color: #ffffff;
    font-size: 18px;
    display: none;
}

.task-card.completed .task-checkbox .check-icon {
    display: block;
}

.task-card.completed {
    opacity: 0.75;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state.small {
    padding: 24px 16px;
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state.small .empty-icon {
    font-size: 40px;
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.empty-hint {
    font-size: 0.85rem !important;
    opacity: 0.7;
}

/* ===== Settings Page ===== */
.settings-container {
    padding: 8px 0;
}

.settings-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 14px 18px;
    margin-bottom: 10px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background-color: var(--bg-card);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: right;
    -webkit-tap-highlight-color: transparent;
}

.settings-btn:hover {
    background-color: var(--bg-card-hover);
    box-shadow: var(--shadow);
}

.settings-btn:active {
    transform: scale(0.98);
}

.settings-btn .material-icons-outlined {
    font-size: 22px;
    flex-shrink: 0;
}

.primary-btn {
    background-color: var(--accent);
    color: #ffffff;
    border: none;
    font-weight: 600;
    justify-content: center;
}

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

.danger-btn {
    color: var(--danger);
    border-color: var(--danger);
}

.danger-btn:hover {
    background-color: rgba(231, 76, 60, 0.1);
}

.settings-section {
    margin-top: 20px;
    margin-bottom: 10px;
}

.section-title {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-weight: 500;
    padding: 0 4px;
}

.danger-section {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ===== All Tasks List (قائمة المهام في الإعدادات) ===== */
.all-tasks-list {
    margin-top: 8px;
}

.settings-task-item {
    display: flex;
    align-items: center;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 14px;
    margin-bottom: 8px;
    transition: all 0.2s ease;
    cursor: grab;
    position: relative;
}

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

.settings-task-item.dragging {
    opacity: 0.5;
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.settings-task-item.drag-over {
    border-color: var(--accent);
    border-style: dashed;
    background-color: var(--accent-light);
}

.settings-task-name {
    flex: 1;
    font-size: 0.95rem;
    color: var(--text-primary);
    word-break: break-word;
    padding: 0 8px;
}

.settings-task-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.settings-task-actions button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.settings-task-actions button:hover {
    background-color: var(--accent-light);
    color: var(--accent);
}

.settings-task-actions .delete-btn:hover {
    background-color: rgba(231, 76, 60, 0.15);
    color: var(--danger);
}

.drag-handle {
    cursor: grab;
    color: var(--text-muted);
    padding: 4px;
}

.drag-handle:active {
    cursor: grabbing;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--overlay);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 16px;
    animation: fadeIn 0.2s ease;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-modal);
    border-radius: 16px;
    width: 100%;
    max-width: 520px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background-color: var(--bg-modal);
    z-index: 10;
    border-radius: 16px 16px 0 0;
}

.modal-header h2 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.close-btn:hover {
    background-color: var(--accent-light);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 10px;
    position: sticky;
    bottom: 0;
    background-color: var(--bg-modal);
    border-radius: 0 0 16px 16px;
}

/* ===== Form ===== */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background-color: var(--bg-input);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s ease;
    resize: vertical;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group input[type="date"] {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background-color: var(--bg-input);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s ease;
}

.form-group input[type="date"]:focus {
    outline: none;
    border-color: var(--accent);
}

/* ===== Repeat Options ===== */
.repeat-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 8px;
}

.repeat-option {
    padding: 10px 12px;
    border: 2px solid var(--border);
    border-radius: 10px;
    background-color: var(--bg-card);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    -webkit-tap-highlight-color: transparent;
}

.repeat-option:hover {
    border-color: var(--accent);
    background-color: var(--accent-light);
}

.repeat-option.selected {
    border-color: var(--accent);
    background-color: var(--accent-light);
    font-weight: 600;
}

/* ===== Repeat Config ===== */
.repeat-config {
    margin-top: 14px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background-color: var(--bg-primary);
}

.weekdays-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.weekday-btn {
    padding: 10px 6px;
    border: 2px solid var(--border);
    border-radius: 8px;
    background-color: var(--bg-card);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    -webkit-tap-highlight-color: transparent;
}

.weekday-btn:hover {
    border-color: var(--accent);
}

.weekday-btn.selected {
    border-color: var(--accent);
    background-color: var(--accent);
    color: #ffffff;
    font-weight: 600;
}

.date-range-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.date-range-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.exceptions-list {
    margin-top: 10px;
}

.exception-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.exception-item input {
    flex: 1;
}

.exception-remove-btn {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    -webkit-tap-highlight-color: transparent;
}

.exception-remove-btn:hover {
    background-color: rgba(231, 76, 60, 0.15);
}

.add-exception-btn,
.add-date-btn {
    background: none;
    border: 1px dashed var(--accent);
    color: var(--accent);
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85rem;
    width: 100%;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.add-exception-btn:hover,
.add-date-btn:hover {
    background-color: var(--accent-light);
}

.specific-dates-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 8px;
}

.specific-date-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.specific-date-item input {
    flex: 1;
}

.remove-date-btn {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    -webkit-tap-highlight-color: transparent;
}

.remove-date-btn:hover {
    background-color: rgba(231, 76, 60, 0.15);
}

/* ===== Detail Modal ===== */
.detail-content .modal-body {
    padding: 20px;
}

.detail-field {
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.detail-field:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.detail-field strong {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.detail-field span {
    font-size: 0.95rem;
    color: var(--text-primary);
    word-break: break-word;
}

/* ===== Confirm Modal ===== */
.confirm-content {
    max-width: 380px;
}

.confirm-content .modal-body {
    text-align: center;
    padding: 28px 20px;
}

.confirm-content .modal-body p {
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.confirm-footer {
    justify-content: center;
}

.confirm-footer button {
    flex: 1;
    justify-content: center;
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--bg-card);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 24px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 3000;
    transition: transform 0.3s ease;
    pointer-events: none;
    white-space: nowrap;
    border: 1px solid var(--border);
}

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

/* ===== Responsive ===== */
@media (max-width: 480px) {
    .header-title {
        font-size: 1.15rem;
    }

    .date-display {
        font-size: 0.95rem;
    }

    .task-card {
        padding: 12px 14px;
    }

    .task-name {
        font-size: 0.9rem;
    }

    .modal-content {
        max-width: 100%;
        max-height: 90vh;
        border-radius: 16px 16px 0 0;
        margin-top: auto;
        margin-bottom: 0;
        align-self: flex-end;
    }

    .repeat-options {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .repeat-option {
        font-size: 0.8rem;
        padding: 8px 10px;
    }

    .weekdays-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }

    .weekday-btn {
        font-size: 0.8rem;
        padding: 8px 4px;
    }
}

@media (min-width: 768px) {
    .modal-content {
        max-width: 560px;
    }

    .weekdays-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}