/**
 * Jaihind International School — Admin Theme
 * Brand: Primary #907ad6 | Secondary #4f518c | Accent #7fdeff | Bg #dabfff | Dark #2c2a4a
 */

:root {
    --primary:          #907ad6;
    --primary-dark:     #4f518c;
    --primary-light:    #dabfff;
    --accent:           #7fdeff;
    --dark-text:        #2c2a4a;
    --sidebar-width:    280px;
    --sidebar-bg:       #2c2a4a;
    --sidebar-hover:    rgba(144,122,214,0.12);
    --sidebar-active:   linear-gradient(90deg,rgba(144,122,214,0.22),transparent);
    --sidebar-active-border: #907ad6;
    --top-height:       70px;
    --nav-bg:           rgba(255,255,255,0.93);
}

/* Bootstrap overrides */
.btn-primary,.bg-primary{background-color:var(--primary)!important;border-color:var(--primary)!important}
.btn-primary:hover{background-color:var(--primary-dark)!important;border-color:var(--primary-dark)!important}
.text-primary{color:var(--primary)!important}
.border-primary{border-color:var(--primary)!important}
.badge.bg-primary{background-color:var(--primary)!important}
.bg-light-primary{background-color:rgba(144,122,214,0.08)!important}

body {
    min-height:100vh;
    background-color:#f5f3fb;
    font-family:'Inter',system-ui,-apple-system,sans-serif;
    color:var(--dark-text);
}

/* Sidebar */
.sidebar {
    width:var(--sidebar-width); height:100vh;
    position:fixed; top:0; left:0; z-index:1000;
    background-color:var(--sidebar-bg); color:#f0edff;
    transition:margin-left 0.3s cubic-bezier(0.4,0,0.2,1);
    overflow-y:auto;
    border-right:1px solid rgba(144,122,214,0.15);
}
.sidebar::-webkit-scrollbar{width:5px}
.sidebar::-webkit-scrollbar-track{background:transparent}
.sidebar::-webkit-scrollbar-thumb{background:rgba(144,122,214,0.3);border-radius:10px}

.sidebar .fs-4.fw-bold,.sidebar .brand-text {
    letter-spacing:-0.5px;
    background:linear-gradient(135deg,#fff 0%,var(--primary-light) 100%);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}

.sidebar .nav-link {
    padding:0.75rem 1.2rem; font-size:0.92rem; font-weight:500;
    display:flex; align-items:center; gap:0.8rem;
    border-radius:10px; margin-bottom:0.2rem;
    position:relative; transition:all 0.2s ease;
    border:1px solid transparent;
    color:rgba(240,237,255,0.75); text-decoration:none;
}
.sidebar .nav-link:hover {
    color:#fff!important;
    background-color:var(--sidebar-hover);
    border-color:rgba(144,122,214,0.15);
    transform:translateX(3px);
}
.sidebar .nav-link.active {
    color:var(--primary-light)!important;
    background:var(--sidebar-active);
    font-weight:600;
    border-color:rgba(144,122,214,0.2);
}
.sidebar .nav-link.active::before {
    content:''; position:absolute; left:-1rem; top:50%;
    transform:translateY(-50%); height:60%; width:4px;
    background-color:var(--sidebar-active-border);
    border-radius:0 4px 4px 0;
    box-shadow:2px 0 8px rgba(144,122,214,0.6);
}
.sidebar .nav-link i {
    font-size:1.1rem; width:1.4rem; text-align:center;
    transition:transform 0.2s; opacity:0.75;
}
.sidebar .nav-link:hover i,.sidebar .nav-link.active i{transform:scale(1.1);opacity:1}

.sidebar-heading {
    font-size:0.7rem; text-transform:uppercase; letter-spacing:1.4px;
    color:rgba(144,122,214,0.6); padding:1.75rem 1.2rem 0.6rem; font-weight:700;
}
.sidebar hr{border-color:rgba(144,122,214,0.15)!important;margin:1.25rem 0}

/* Main content */
.main-content {
    margin-left:var(--sidebar-width); padding-top:var(--top-height);
    min-height:100vh;
    transition:margin-left 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* Top navbar */
.top-navbar {
    height:var(--top-height); background:var(--nav-bg);
    backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(144,122,214,0.12)!important;
    position:fixed; top:0; right:0; left:var(--sidebar-width);
    z-index:990; transition:left 0.3s cubic-bezier(0.4,0,0.2,1);
}
.top-navbar .nav-link{color:var(--dark-text);transition:color 0.2s}
.top-navbar .nav-link:hover{color:var(--primary)}
.top-navbar .dropdown-toggle img {
    border:2px solid var(--primary-light);
    box-shadow:0 2px 6px rgba(144,122,214,0.25);
    transition:transform 0.2s;
}
.top-navbar .dropdown-toggle:hover img{transform:scale(1.05)}

.session-badge {
    background:rgba(144,122,214,0.1);
    border:1px solid rgba(144,122,214,0.25);
    border-radius:20px; padding:4px 12px;
    font-size:0.82rem; font-weight:600; color:var(--primary-dark);
}

/* Cards */
.card {
    border:1px solid rgba(144,122,214,0.1);
    box-shadow:0 2px 8px rgba(44,42,74,0.06);
    margin-bottom:1.5rem; border-radius:14px;
}
.card-header {
    background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
    color:#fff; border-radius:14px 14px 0 0!important; border:none; font-weight:600;
}

/* Stat cards */
.stat-card {
    border-radius:14px; padding:1.25rem 1.5rem;
    border:none; box-shadow:0 2px 12px rgba(44,42,74,0.08);
    transition:transform 0.2s,box-shadow 0.2s;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(44,42,74,0.12)}
.stat-card .icon-circle {
    width:48px; height:48px; border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    font-size:1.4rem; background:rgba(144,122,214,0.12); color:var(--primary);
}

/* Buttons */
.btn{border-radius:8px;font-weight:500}
.btn-lg{border-radius:10px;padding:0.6rem 1.5rem}
.btn-outline-primary{color:var(--primary);border-color:var(--primary)}
.btn-outline-primary:hover{background:var(--primary);border-color:var(--primary);color:#fff}

/* Tables */
.table thead th {
    background-color:rgba(144,122,214,0.08);
    color:var(--primary-dark); font-weight:600;
    border-bottom:2px solid rgba(144,122,214,0.2);
    font-size:0.85rem; text-transform:uppercase; letter-spacing:0.5px;
}
.table-hover tbody tr:hover{background-color:rgba(144,122,214,0.04)}

/* Forms */
.form-control:focus,.form-select:focus {
    border-color:var(--primary);
    box-shadow:0 0 0 0.2rem rgba(144,122,214,0.2);
}

/* Progress */
.progress-bar{background-color:var(--primary)}

/* Pagination */
.page-link{color:var(--primary)}
.page-link:hover{color:var(--primary-dark)}
.page-item.active .page-link{background-color:var(--primary);border-color:var(--primary)}

/* Alert-info with accent */
.alert-info{background-color:rgba(127,222,255,0.15);border-color:var(--accent);color:var(--dark-text)}

/* Mobile */
@media (max-width:991.98px){
    .sidebar{margin-left:calc(var(--sidebar-width)*-1)}
    .sidebar.show{margin-left:0}
    .main-content{margin-left:0}
    .top-navbar{left:0}
    .sidebar-overlay {
        display:none; position:fixed; top:0; left:0;
        width:100vw; height:100vh;
        background:rgba(44,42,74,0.65);
        backdrop-filter:blur(4px); -webkit-backdrop-filter:blur(4px);
        z-index:999; opacity:0; transition:opacity 0.3s ease;
    }
    .sidebar-overlay.show{display:block;opacity:1}
}

/* Scrollbar */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:#f5f3fb}
::-webkit-scrollbar-thumb{background:rgba(144,122,214,0.3);border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:var(--primary)}