/* =====================================================================
   نظام متابعة سير العملية التعليمية — الواجهة
   RTL / عربي / متجاوب
   ===================================================================== */

:root {
    --primary:        #4f46e5;
    --primary-dark:   #4338ca;
    --primary-light:  #eef2ff;
    --accent:         #10b981;
    --accent-light:   #ecfdf5;
    --warn:           #f59e0b;
    --danger:         #ef4444;
    --danger-light:   #fef2f2;

    --bg:        #f4f6fb;
    --surface:   #ffffff;
    --text:      #1e293b;
    --muted:     #64748b;
    --border:    #e6e9f0;

    --sidebar-bg-1: #1e2545;
    --sidebar-bg-2: #2a3566;
    --sidebar-w: 260px;
    --container: 1320px;

    --radius:    14px;
    --radius-sm: 10px;
    --shadow:    0 1px 2px rgba(16,24,40,.04), 0 8px 24px rgba(16,24,40,.06);
    --shadow-lg: 0 12px 40px rgba(16,24,40,.12);
    --font: 'Tajawal', system-ui, 'Segoe UI', Tahoma, sans-serif;
}

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

html, body { height: 100%; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---------------------------------------------------------------- */
/*  هيكل التطبيق                                                     */
/* ---------------------------------------------------------------- */
.app { min-height: 100vh; }

.main {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------------------------------------------------------------- */
/*  القائمة الجانبية                                                 */
/* ---------------------------------------------------------------- */
.sidebar {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: var(--sidebar-w);
    max-width: 86vw;
    background: linear-gradient(180deg, var(--sidebar-bg-1), var(--sidebar-bg-2));
    color: #cdd5f0;
    display: flex;
    flex-direction: column;
    z-index: 50;
    transform: translateX(100%);            /* مغلق افتراضيًا (ينزلق من اليمين) */
    transition: transform .3s cubic-bezier(.4, 0, .2, 1);
}
.sidebar.is-open { transform: translateX(0); box-shadow: var(--shadow-lg); }

.sidebar__brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 22px 22px;
    color: #fff;
    font-weight: 800;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand-mark {
    width: 38px; height: 38px;
    display: grid; place-items: center;
    background: rgba(255,255,255,.12);
    border-radius: 10px;
}
.brand-mark svg { width: 20px; height: 20px; }

.sidebar__nav { padding: 14px 12px; display: flex; flex-direction: column; gap: 4px; flex: 1; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    color: #aeb7da;
    font-weight: 500;
    font-size: .96rem;
    transition: background .15s, color .15s;
}
.nav-link:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav-link.is-active {
    background: linear-gradient(90deg, rgba(99,102,241,.95), rgba(99,102,241,.7));
    color: #fff;
    box-shadow: 0 6px 16px rgba(79,70,229,.35);
}
.nav-link__icon { width: 20px; height: 20px; display: grid; place-items: center; flex-shrink: 0; }
.nav-link__icon svg { width: 19px; height: 19px; }

.sidebar__footer { padding: 16px 22px; border-top: 1px solid rgba(255,255,255,.08); }
.role-badge {
    display: inline-block;
    background: rgba(255,255,255,.12);
    color: #fff;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: .8rem;
    font-weight: 700;
}

.sidebar-overlay {
    position: fixed; inset: 0;
    background: rgba(20, 26, 51, .32);
    -webkit-backdrop-filter: blur(7px) saturate(140%);
    backdrop-filter: blur(7px) saturate(140%);
    z-index: 45;
    opacity: 0; visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
}
.sidebar-overlay.is-open { opacity: 1; visibility: visible; }

/* ---------------------------------------------------------------- */
/*  الشريط العلوي                                                    */
/* ---------------------------------------------------------------- */
.topbar {
    position: sticky; top: 0;
    background: rgba(255,255,255,.85);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    z-index: 30;
}
.topbar__inner {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 26px;
}
.topbar__title { font-size: 1.2rem; font-weight: 700; flex: 1; }
.topbar__toggle {
    display: grid;
    place-items: center;
    background: var(--primary-light);
    color: var(--primary);
    border: none;
    width: 40px; height: 40px;
    border-radius: 10px;
    cursor: pointer;
    transition: background .15s;
}
.topbar__toggle:hover { background: #e0e5ff; }
.topbar__toggle svg { width: 22px; height: 22px; }

.topbar__user { display: flex; align-items: center; gap: 12px; }
.user-meta { text-align: left; display: flex; flex-direction: column; line-height: 1.25; }
.user-name { font-weight: 700; font-size: .92rem; }
.user-role { color: var(--muted); font-size: .76rem; }
.user-avatar {
    width: 42px; height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    display: grid; place-items: center;
    font-weight: 800;
    font-size: 1.1rem;
}

/* ---------------------------------------------------------------- */
/*  المحتوى                                                          */
/* ---------------------------------------------------------------- */
.content {
    flex: 1;
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 26px;
}
.page-footer { border-top: 1px solid var(--border); }
.page-footer__inner {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 18px 26px;
    color: var(--muted);
    font-size: .85rem;
}

.page-head {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; flex-wrap: wrap;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px 22px;
    margin-bottom: 22px;
}
.page-head h2 { font-size: 1.3rem; font-weight: 800; }
.page-head p { color: var(--muted); font-size: .9rem; }
.page-head > div:first-child { min-width: 0; }

/* ---------------------------------------------------------------- */
/*  البطاقات                                                         */
/* ---------------------------------------------------------------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.card__head {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card__head h3 { font-size: 1.02rem; font-weight: 700; }
.card__body { padding: 20px; }

/* شبكة بطاقات الإحصائيات */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex; align-items: center; gap: 16px;
}
.stat-card__icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: grid; place-items: center;
    flex-shrink: 0;
}
.stat-card__icon svg { width: 26px; height: 26px; }
.stat-card__icon.i-indigo { background: var(--primary-light); color: var(--primary); }
.stat-card__icon.i-green  { background: var(--accent-light);  color: var(--accent); }
.stat-card__icon.i-amber  { background: #fff7ed; color: var(--warn); }
.stat-card__icon.i-rose   { background: var(--danger-light); color: var(--danger); }
.stat-card__value { font-size: 1.7rem; font-weight: 800; line-height: 1.1; }
.stat-card__label { color: var(--muted); font-size: .88rem; }

/* شبكة الرسوم */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 18px;
    margin-bottom: 22px;
}
.chart-box { position: relative; height: 300px; }
.chart-box canvas { max-height: 300px; }

/* ---------------------------------------------------------------- */
/*  شريط الفلترة                                                     */
/* ---------------------------------------------------------------- */
.filters {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 22px;
    overflow: hidden;
}
.filters__head {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    width: 100%;
    padding: 15px 20px;
    background: #fbfcff;
    border: none;
    font-family: inherit;
    color: inherit;
    cursor: pointer;
    transition: background .15s;
}
.filters__head:hover { background: #f3f5fc; }
.filters__head[aria-expanded="true"] { border-bottom: 1px solid var(--border); }
.filters__title { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: .98rem; }
.filters__title svg { width: 18px; height: 18px; color: var(--primary); }
.filters__head-right { display: flex; align-items: center; gap: 12px; }
.filters__count {
    font-size: .76rem; font-weight: 700;
    background: var(--primary-light); color: var(--primary);
    padding: 4px 12px; border-radius: 999px;
}
.filters__chevron { width: 18px; height: 18px; color: var(--muted); transition: transform .3s ease; flex-shrink: 0; }
.filters.is-open .filters__chevron { transform: rotate(180deg); }

/* الطيّ والفتح */
.filters__body {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .3s ease;
}
.filters.is-open .filters__body { grid-template-rows: 1fr; }
.filters__body-inner { overflow: hidden; min-width: 0; }

/* كل الفلاتر في صف واحد (تلتف على الشاشات الضيقة) */
.filters__grid {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 12px;
    padding: 18px 20px;
}
.filters__grid .field { flex: 1 1 0; min-width: 130px; }

.filters__actions {
    display: flex; gap: 10px; flex-wrap: wrap;
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    background: #fbfcff;
}
.filters__actions .spacer { flex: 1; }

/* حقول التاريخ: صيغة لاتينية LTR لتفادي النص العربي المقلوب */
.input[type="date"] { direction: ltr; }
.input[type="date"]::-webkit-datetime-edit { direction: ltr; }

/* ---------------------------------------------------------------- */
/*  النماذج                                                          */
/* ---------------------------------------------------------------- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}
/* شبكة بثلاثة أعمدة متساوية بعرض كامل (تلتف على الشاشات الصغيرة) */
.form-grid--3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}
@media (max-width: 760px) { .form-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .form-grid--3 { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--full { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: .9rem; }
.field .hint { color: var(--muted); font-size: .78rem; }
.req { color: var(--danger); }

.input, .select, .textarea {
    width: 100%;
    padding: 11px 13px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #fff;
    font-family: inherit;
    font-size: .95rem;
    color: var(--text);
    transition: border-color .15s, box-shadow .15s;
}
.input:focus, .select:focus, .textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}
.textarea { resize: vertical; min-height: 90px; }

/* مجموعة اختيارات (checkboxes) للوسائل */
.checks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 8px;
}
.check {
    display: flex; align-items: center; gap: 8px;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: .9rem;
    transition: border-color .15s, background .15s;
}
.check:hover { border-color: var(--primary); }
.check input { accent-color: var(--primary); width: 16px; height: 16px; }
.check.is-checked { border-color: var(--primary); background: var(--primary-light); }

.form-actions { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- */
/*  الأزرار                                                          */
/* ---------------------------------------------------------------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 11px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-weight: 700;
    font-size: .92rem;
    cursor: pointer;
    transition: transform .08s, background .15s, box-shadow .15s;
    white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; }
.btn__icon { flex-shrink: 0; }
.btn--primary { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(79,70,229,.25); }
.btn--primary:hover { background: var(--primary-dark); }
.btn--success { background: var(--accent); color: #fff; box-shadow: 0 6px 16px rgba(16,185,129,.25); }
.btn--success:hover { filter: brightness(.95); }
.btn--ghost { background: #fff; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { background: var(--bg); }
.btn--danger { background: var(--danger-light); color: var(--danger); }
.btn--danger:hover { background: #fee2e2; }
.btn--sm { padding: 7px 13px; font-size: .82rem; }
.btn--block { width: 100%; }

/* ---------------------------------------------------------------- */
/*  الجداول                                                          */
/* ---------------------------------------------------------------- */
.table-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.table-scroll { overflow-x: auto; }

/* جدول بارتفاع ثابت ورأس مثبّت + تمرير عند كثرة البيانات */
.table-fixed { max-height: 540px; overflow: auto; }
.table-fixed thead th { position: sticky; top: 0; z-index: 2; box-shadow: 0 1px 0 var(--border); }

/* مربع بحث فوري فوق الجدول */
.table-search { position: relative; margin-bottom: 16px; }
.table-search .input { padding-inline-start: 42px; }
.table-search__icon {
    position: absolute; inset-inline-start: 14px; top: 50%; transform: translateY(-50%);
    width: 18px; height: 18px; color: var(--muted); pointer-events: none;
}
table.table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 640px; }
.table thead th {
    text-align: right;
    background: #f8fafc;
    color: var(--muted);
    font-weight: 700;
    font-size: .82rem;
    padding: 13px 16px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.table tbody td { padding: 13px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: #fafbff; }
.table .actions { display: flex; gap: 6px; }

/* شارات */
.chip {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: .76rem;
    font-weight: 700;
    background: var(--primary-light);
    color: var(--primary);
}
.chip--green { background: var(--accent-light); color: var(--accent); }
.chip--muted { background: #f1f5f9; color: var(--muted); }
.tag-list { display: flex; flex-wrap: wrap; gap: 4px; }

/* ---------------------------------------------------------------- */
/*  التنبيهات                                                        */
/* ---------------------------------------------------------------- */
.alert {
    padding: 13px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-weight: 600;
    font-size: .92rem;
    border: 1px solid transparent;
}
.alert--success { background: var(--accent-light); color: #047857; border-color: #a7f3d0; }
.alert--error   { background: var(--danger-light); color: #b91c1c; border-color: #fecaca; }
.alert--info    { background: var(--primary-light); color: var(--primary-dark); border-color: #c7d2fe; }

/* حالة فارغة */
.empty {
    text-align: center;
    padding: 50px 20px;
    color: var(--muted);
}
.empty svg { width: 52px; height: 52px; margin: 0 auto 12px; opacity: .4; }

/* ---------------------------------------------------------------- */
/*  النوافذ المنبثقة (Modals)                                        */
/* ---------------------------------------------------------------- */
.modal {
    position: fixed; inset: 0;
    z-index: 80;
    display: none;
    align-items: center; justify-content: center;
    padding: 20px;
}
.modal.is-open { display: flex; }
.modal__backdrop {
    position: absolute; inset: 0;
    background: rgba(20, 26, 51, .45);
    -webkit-backdrop-filter: blur(6px) saturate(140%);
    backdrop-filter: blur(6px) saturate(140%);
}
.modal__dialog {
    position: relative;
    width: 100%; max-width: 560px;
    max-height: 90vh; overflow-y: auto;
    background: var(--surface);
    border-radius: 18px;
    box-shadow: var(--shadow-lg);
    animation: modalIn .22s ease;
}
@keyframes modalIn {
    from { opacity: 0; transform: translateY(14px) scale(.98); }
    to   { opacity: 1; transform: none; }
}
.modal__head {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
}
.modal__head h3 { font-size: 1.08rem; font-weight: 700; }
.modal__close {
    background: none; border: none; cursor: pointer;
    width: 34px; height: 34px; border-radius: 9px;
    font-size: 1.5rem; line-height: 1; color: var(--muted);
    display: grid; place-items: center;
    transition: background .15s, color .15s;
}
.modal__close:hover { background: var(--bg); color: var(--text); }
.modal__body { padding: 22px; }
.modal__foot {
    display: flex; gap: 10px; flex-wrap: wrap;
    margin-top: 22px;
}

/* ---------------------------------------------------------------- */
/*  صفحة تسجيل الدخول                                                */
/* ---------------------------------------------------------------- */
.auth-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(900px 500px at 100% 0%, rgba(99,102,241,.18), transparent),
        radial-gradient(800px 500px at 0% 100%, rgba(16,185,129,.14), transparent),
        var(--bg);
}
.auth-card {
    width: 100%; max-width: 420px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 36px 32px;
}
.auth-card__logo {
    width: 60px; height: 60px;
    margin: 0 auto 16px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    display: grid; place-items: center;
}
.auth-card__logo svg { width: 30px; height: 30px; }
.auth-card h1 { text-align: center; font-size: 1.3rem; margin-bottom: 4px; }
.auth-card .sub { text-align: center; color: var(--muted); font-size: .9rem; margin-bottom: 26px; }
.auth-card .field { margin-bottom: 16px; }
.auth-hint { margin-top: 18px; text-align: center; color: var(--muted); font-size: .82rem; }
.remember {
    display: flex; align-items: center; gap: 9px;
    margin: 2px 0 18px;
    font-size: .9rem; color: var(--muted);
    cursor: pointer; user-select: none;
}
.remember input { width: 17px; height: 17px; accent-color: var(--primary); cursor: pointer; }

/* مساعدة تخطيط */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.text-muted { color: var(--muted); }
.text-center { text-align: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- */
/*  التجاوب                                                          */
/* ---------------------------------------------------------------- */

/* أجهزة لوحية */
@media (max-width: 900px) {
    .content { padding: 20px; }
}

/* هواتف كبيرة / لوحية صغيرة */
@media (max-width: 640px) {
    .content { padding: 16px; }

    /* الترويسة تبقى صفاً واحداً، وزر الإجراء يصبح أيقونة فقط */
    .page-head { flex-wrap: nowrap; padding: 14px 16px; gap: 12px; }
    .page-head h2 { font-size: 1.1rem; }
    .page-head .btn .btn__label { display: none; }
    .page-head .btn { padding: 10px; flex-shrink: 0; }
    .page-head .btn .btn__icon { width: 20px; height: 20px; }

    /* الرسوم البيانية بعمود واحد */
    .charts-grid { grid-template-columns: 1fr; }
    .chart-box { height: 280px; }
}

/* الهواتف */
@media (max-width: 560px) {
    .content { padding: 14px; }
    .topbar__inner { padding: 12px 14px; gap: 10px; }
    .topbar__title { font-size: 1.05rem; }
    .page-footer__inner { padding: 16px 14px; }
    .user-meta { display: none; }
    .page-head { padding: 13px 15px; }

    /* بطاقات الإحصائيات */
    .stats-grid { gap: 12px; }
    .stat-card { padding: 16px; gap: 12px; }
    .stat-card__icon { width: 46px; height: 46px; }
    .stat-card__icon svg { width: 23px; height: 23px; }
    .stat-card__value { font-size: 1.4rem; }

    /* البطاقات */
    .card__head { padding: 14px 16px; }
    .card__body { padding: 16px; }

    /* الفلاتر: حقل واحد لكل صف */
    .filters__head { padding: 13px 16px; }
    .filters__grid { padding: 16px; gap: 10px; }
    .filters__grid .field { flex-basis: 100%; min-width: 0; }
    .filters__actions { padding: 14px 16px; }

    /* الجداول: حشو أصغر + ارتفاع مناسب */
    .table thead th, .table tbody td { padding: 10px 12px; }
    .table-fixed { max-height: 62vh; }
    .table-search { margin-bottom: 12px; }

    /* النوافذ المنبثقة: قريبة من ملء الشاشة */
    .modal { padding: 10px; }
    .modal__dialog { border-radius: 14px; max-height: 94vh; }
    .modal__head { padding: 14px 16px; }
    .modal__body { padding: 16px; }
    .modal__foot { margin-top: 18px; }
    .modal__foot .btn { flex: 1 1 auto; justify-content: center; }
    .form-grid { grid-template-columns: 1fr; }

    /* تسجيل الدخول */
    .auth-wrap { padding: 16px; }
    .auth-card { padding: 28px 20px; }
}