/* --- المتغيرات الأساسية وإعدادات الخط --- */
:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --bg-main: #f8fafc;
    --holiday-bg: #fff7ed;
    --holiday-text: #c2410c;
    --period-bg: #f3e8ff;
    --period-text: #7e22ce;
    --procedure-bg: #ecfdf5;
    --procedure-text: #059669;
    --border-color: #e2e8f0;
    --text-main: #1e293b;
    --text-muted: #64748b;
}

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

body {
    -webkit-tap-highlight-color: transparent;
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- تخصيص شريط التمرير (Scrollbar) --- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}
.custom-scrollbar::-webkit-scrollbar {
    width: 5px;
}

/* --- شاشة الانتظار (Loading Overlay) --- */
#loadingOverlay {
    transition: opacity 0.5s ease, visibility 0.5s;
}
#loadingOverlay.fade-out {
    opacity: 0;
    visibility: hidden;
}

/* --- تصميم شبكة التقويم (Calendar Grid) --- */
.week-row {
    display: grid;
    grid-template-columns: 80px repeat(5, 1fr); /* عمود للأسبوع + 5 أيام */
    gap: 1px;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px -3px rgba(0, 0, 0, 0.05);
}

.week-label {
    background-color: #f1f5f9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--text-muted);
    border-left: 1px solid var(--border-color);
    text-align: center;
}

.day-cell {
    background-color: white;
    min-height: 140px;
    padding: 10px;
    transition: all 0.2s ease;
    position: relative;
    cursor: pointer;
}

.day-cell:hover {
    background-color: #f8fafc;
}

/* ترويسة اليوم */
.day-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid #f1f5f9;
}

.day-name {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
}

.hijri-date {
    font-size: 0.65rem;
    color: #94a3b8;
    font-weight: 500;
    display: block;
}

.day-number {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-main);
}

/* --- المواعيد والمهام --- */
.event-item {
    font-size: 0.7rem;
    padding: 5px 8px;
    border-radius: 8px;
    margin-bottom: 5px;
    border-right: 4px solid transparent;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: transform 0.1s;
}

.event-item:hover {
    transform: scale(1.03);
    filter: brightness(0.95);
}

/* --- التمييز اللوني للحالات --- */
.is-holiday { background-color: var(--holiday-bg) !important; }
.holiday-tag {
    color: var(--holiday-text);
    font-size: 0.65rem;
    font-weight: 800;
    margin-bottom: 4px;
    display: block;
}

.is-period { background-color: var(--period-bg) !important; }

.is-procedure { background-color: var(--procedure-bg) !important; }
.procedure-tag {
    color: var(--procedure-text);
    font-size: 0.65rem;
    font-weight: 800;
    margin-bottom: 4px;
    display: block;
}

/* --- تصميم النوافذ المنبثقة (Modals) --- */
.modal-open {
    overflow: hidden;
}

#settingsModal {
    transition: transform 0.3s ease-in-out;
}

/* صفوف الإدخال في الإعدادات */
#coursesList > div, #holidaysList > div, #periodsList > div, #proceduresList > div {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    background: white;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.field-group {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 120px;
}

.field-group label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 4px;
}

/* --- التجاوب مع الجوال (Mobile Responsiveness) --- */
@media (max-width: 1024px) {
    .week-row {
        grid-template-columns: 60px repeat(5, 1fr);
    }
}

@media (max-width: 768px) {
    .week-row {
        grid-template-columns: 1fr; /* تحويل الأسبوع لعمود واحد في الجوال */
        background-color: transparent;
        border: none;
        gap: 15px;
    }
    
    .week-label {
        border: none;
        border-radius: 12px;
        padding: 8px;
        background-color: var(--text-main);
        color: white;
        flex-direction: row;
        gap: 10px;
    }

    .day-cell {
        min-height: auto;
        border-radius: 16px;
        border: 1px solid var(--border-color);
        box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    }

    .day-header {
        border-bottom: none;
    }

    #settingsForm {
        padding: 20px;
    }
}

/* --- تحسينات بصرية إضافية --- */
input:focus, select:focus, textarea:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.close-modal:hover i, .close-detail:hover i {
    transform: rotate(90deg);
}

i {
    transition: transform 0.2s ease;
}

/* منع القص في الحقول النصية داخل المودال */
textarea {
    resize: vertical;
    min-height: 100px;
}

/* --- تنسيقات التنبيهات (Toasts) --- */
.toast-in {
    animation: toastIn 0.3s ease-out forwards;
}

.toast-out {
    animation: toastOut 0.3s ease-in forwards;
}

@keyframes toastIn {
    from { transform: translateX(-100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(-100%); opacity: 0; }
}