* {
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background: radial-gradient(circle at top left, #131c40 0, #050814 40%, #02030a 100%);
    color: #f5f7ff;
    min-height: 100vh;
}

.premium-navbar {
    background: linear-gradient(120deg, #10193a, #222b5e, #363a7c);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 12px;
    background: radial-gradient(circle at 0 0, #45cafc, #7b42ff);
    color: #fff;
    font-weight: 600;
    font-size: 16px;
}

.navbar-nav .nav-link {
    color: #d7dcff;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #ffffff;
}

.premium-page-wrapper {
    padding: 32px 16px 64px;
    max-width: 1250px;
    margin: 0 auto;
}

.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.page-title {
    font-size: 1.6rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #f5f7ff;
}

.page-title-icon {
    width: 40px;
    height: 40px;
    border-radius: 16px;
    background: radial-gradient(circle at 0 0, #45cafc, #7b42ff);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #fff;
}

.page-subtitle {
    font-size: 0.9rem;
    color: #a5b0ff;
}

.premium-card {
    background: radial-gradient(circle at top left, rgba(63, 81, 181, 0.24), rgba(0, 0, 0, 0.85));
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.9),
        0 0 0 1px rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(22px);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.badge-soft {
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    font-size: 0.75rem;
}

.badge-soft-success {
    background: rgba(76, 217, 100, 0.1);
    color: #7effb0;
}

.badge-soft-warning {
    background: rgba(255, 204, 0, 0.08);
    color: #ffe072;
}

.badge-soft-danger {
    background: rgba(255, 59, 48, 0.08);
    color: #ff9d9d;
}

.table-premium {
    color: #e1e5ff;
    margin-bottom: 0;
}

.table-premium thead tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.table-premium thead th {
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #9da9ff;
    border-bottom: none;
}

.table-premium tbody tr {
    border-color: rgba(255, 255, 255, 0.03);
}

.table-premium tbody td {
    font-size: 0.86rem;
    vertical-align: middle;
}

.table-premium .student-avatar {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.action-buttons .btn {
    padding: 0.25rem 0.55rem;
    font-size: 0.78rem;
    border-radius: 999px;
}

.search-input {
    background: rgba(0, 0, 0, 0.5);
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #f5f7ff;
}

.search-input:focus {
    outline: none;
    box-shadow: 0 0 0 1px rgba(123, 66, 255, 0.7);
}

.search-input::placeholder {
    color: #8b95d8;
}

.premium-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: auto;
    color: #9fa7ff;
    font-size: 0.8rem;
}

.form-label {
    font-size: 0.85rem;
    color: #c8d0ff;
}

.form-control,
.form-select {
    background-color: rgba(3, 7, 30, 0.9);
    border-radius: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #f5f7ff;
    font-size: 0.9rem;
}

.form-control:focus,
.form-select:focus {
    border-color: #7b42ff;
    box-shadow: 0 0 0 1px rgba(123, 66, 255, 0.7);
}

.form-control::placeholder {
    color: #7d86c9;
}

.btn-gradient-primary {
    border-radius: 999px;
    border: none;
    padding: 0.55rem 1.5rem;
    font-weight: 500;
    background-image: linear-gradient(135deg, #45cafc, #7b42ff);
    color: #fff;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.6);
}

.btn-gradient-primary:hover {
    filter: brightness(1.06);
    color: #fff;
}

.btn-outline-soft {
    border-radius: 999px;
    padding: 0.55rem 1.4rem;
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #e0e5ff;
    background: rgba(0, 0, 0, 0.4);
}

.btn-outline-soft:hover {
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
}

.chip {
    border-radius: 999px;
    padding: 0.2rem 0.85rem;
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 0.78rem;
    color: #a5b0ff;
}

@media (max-width: 767.98px) {
    .premium-page-wrapper {
        padding: 20px 14px 60px;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-title {
        font-size: 1.4rem;
    }
}


.stat-card {
    border-radius: 22px;
    padding: 1rem 1.2rem;
    background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.08), rgba(0, 0, 0, 0.85));
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.8);
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #aab4ff;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 600;
    color: #ffffff;
}

.stat-subtext {
    font-size: 0.78rem;
    color: #8f99e8;
}

.stat-icon {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    background: rgba(0, 0, 0, 0.35);
}

.stat-card-primary {
    background-image: linear-gradient(135deg, rgba(69, 202, 252, 0.14), rgba(123, 66, 255, 0.18));
}

.stat-card-success {
    background-image: linear-gradient(135deg, rgba(76, 217, 100, 0.14), rgba(52, 199, 89, 0.18));
}

.stat-card-warning {
    background-image: linear-gradient(135deg, rgba(255, 204, 0, 0.14), rgba(255, 149, 0, 0.18));
}


.user-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.9rem;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.35);
    color: #e3e7ff !important;
    cursor: default;
}

.user-role-badge {
    font-size: 0.7rem;
    padding: 0.05rem 0.45rem;
    border-radius: 999px;
    background: rgba(123, 66, 255, 0.3);
    color: #f5f0ff;
}