/* المتغيرات العامة */

:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #2ecc71;
    --accent-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #9b59b6;
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --border-color: #e1e8ed;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}


/* الوضع الليلي */

[data-theme="dark"] {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #2ecc71;
    --accent-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #9b59b6;
    --light-color: #2c3e50;
    --dark-color: #ecf0f1;
    --text-color: #ecf0f1;
    --text-light: #bdc3c7;
    --bg-color: #1a2530;
    --card-bg: #243447;
    --border-color: #34495e;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
}


/* إعدادات عامة */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: var(--transition);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
}


/* الرأس */

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

header h1 {
    color: var(--primary-color);
    font-size: 2.2rem;
    font-weight: 700;
}

header h1 i {
    margin-left: 10px;
}

.header-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}


/* التنقل */

.main-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    padding: 10px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.nav-btn {
    flex: 1;
    padding: 15px 20px;
    border: none;
    background: transparent;
    color: var(--text-light);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
}

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

.nav-btn.active {
    color: var(--primary-color);
    background: var(--light-color);
    box-shadow: var(--shadow);
}


/* المحتوى الرئيسي */

.main-content {
    min-height: 60vh;
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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


/* لوحة التحكم */

.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: auto auto;
    gap: 20px;
    grid-template-areas: "stats quick" "chart recent" "chart recent";
}

.stats-grid {
    grid-area: stats;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.quick-timer-card {
    grid-area: quick;
}

.chart-card {
    grid-area: chart;
}

.recent-sessions {
    grid-area: recent;
}


/* بطاقات الإحصائيات */

.stat-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-card.primary {
    border-left-color: var(--primary-color);
}

.stat-card.success {
    border-left-color: var(--secondary-color);
}

.stat-card.warning {
    border-left-color: var(--warning-color);
}

.stat-card.info {
    border-left-color: var(--info-color);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.stat-card.primary .stat-icon {
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
}

.stat-card.success .stat-icon {
    background: rgba(46, 204, 113, 0.1);
    color: var(--secondary-color);
}

.stat-card.warning .stat-icon {
    background: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
}

.stat-card.info .stat-icon {
    background: rgba(155, 89, 182, 0.1);
    color: var(--info-color);
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}


/* المؤقت السريع */

.quick-timer-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.quick-timer-card h3 {
    margin-bottom: 20px;
    color: var(--text-color);
}

.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.template-btn {
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    text-align: center;
}

.template-btn:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.template-btn i {
    font-size: 1.2rem;
    color: var(--primary-color);
}


/* المؤقت النشط */

.timer-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.current-session,
.pomodoro-timer {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.session-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.session-tags {
    display: flex;
    gap: 10px;
}

.tag {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.tag.billable {
    background: rgba(46, 204, 113, 0.1);
    color: var(--secondary-color);
}

.tag.pomodoro {
    background: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
}

.timer-display {
    text-align: center;
    margin-bottom: 30px;
}

.time {
    font-family: 'Courier New', monospace;
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.session-info {
    display: flex;
    justify-content: center;
    gap: 20px;
    color: var(--text-light);
}

.timer-controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 30px;
}

.btn-large {
    padding: 15px 25px;
    font-size: 1.1rem;
}

.session-settings {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 25px;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.setting-group label {
    font-weight: 500;
    color: var(--text-color);
}

.setting-group input,
.setting-group select {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-color);
    color: var(--text-color);
}

.session-notes textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-color);
    color: var(--text-color);
    resize: vertical;
    min-height: 100px;
}


/* مؤقت البومودورو */

.pomodoro-timer {
    text-align: center;
}

.pomodoro-timer h4 {
    margin-bottom: 20px;
    color: var(--text-color);
}

.pomodoro-display {
    margin-bottom: 20px;
}

.pomodoro-time {
    font-family: 'Courier New', monospace;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--warning-color);
    margin-bottom: 10px;
}

.pomodoro-phase {
    color: var(--text-light);
    font-weight: 500;
}

.pomodoro-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
}

.pomodoro-settings {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}


/* المشاريع */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.project-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
}

.project-rate {
    background: rgba(46, 204, 113, 0.1);
    color: var(--secondary-color);
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-description {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.5;
}

.project-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.project-stat {
    text-align: center;
}

.stat-number {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-light);
}

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


/* الجداول */

.sessions-table {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.sessions-table table {
    width: 100%;
    border-collapse: collapse;
}

.sessions-table th,
.sessions-table td {
    padding: 15px;
    text-align: right;
    border-bottom: 1px solid var(--border-color);
}

.sessions-table th {
    background: var(--light-color);
    font-weight: 600;
    color: var(--text-color);
}

.sessions-table tr:hover {
    background: var(--light-color);
}


/* الأزرار */

.btn-primary,
.btn-secondary,
.btn-danger,
.btn-icon {
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--light-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    transform: translateY(-2px);
}

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

.btn-danger:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.btn-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
}

.btn-icon:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}


/* النماذج المنبثقة */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    color: var(--text-color);
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

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

.modal-form {
    padding: 25px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    transition: var(--transition);
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 25px;
}


/* الرسوم البيانية */

.chart-card,
.report-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.chart-card h3,
.report-card h3 {
    margin-bottom: 20px;
    color: var(--text-color);
}

.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}


/* التجاوبية */

@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        grid-template-areas: "stats" "quick" "chart" "recent";
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .timer-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    .header-main {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    .main-nav {
        flex-direction: column;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .quick-actions {
        grid-template-columns: 1fr;
    }
    .session-settings,
    .pomodoro-settings {
        grid-template-columns: 1fr;
    }
    .timer-controls {
        flex-direction: column;
    }
    .projects-grid {
        grid-template-columns: 1fr;
    }
    .reports-grid {
        grid-template-columns: 1fr;
    }
    .sessions-table {
        overflow-x: auto;
    }
}

@media (max-width: 480px) {
    .time {
        font-size: 2.5rem;
    }
    .session-info {
        flex-direction: column;
        gap: 5px;
    }
    .project-stats {
        flex-direction: column;
        gap: 10px;
    }
    .form-actions {
        flex-direction: column;
    }
}