/* ===================== ROOT VARIABLES ===================== */
:root {
    --primary: #4361ee;
    --secondary: #6c757d;
    --success: #2dce89;
    --info: #4895ef;
    --warning: #fbb140;
    --danger: #e63946;
    --light: #f8f9fa;
    --dark: #212529;
    --transition: all 0.3s ease;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --card-shadow: 0 10px 30px rgba(0,0,0,0.1);
    --border-radius: 12px;
    --navbar-height: 70px;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: #f5f7fb;
    color: #4a4a4a;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* ===================== NAVBAR ===================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: linear-gradient(135deg, var(--primary), var(--info));
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    box-shadow: var(--shadow);
    padding: 0.5rem 1rem;
    transition: var(--transition);
    min-height: var(--navbar-height);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    color: #fff !important;
    transition: var(--transition);
}

    .navbar-brand i {
        margin-right: 10px;
        font-size: 1.8rem;
        transition: transform 0.3s ease;
    }

    .navbar-brand:hover i {
        transform: rotate(20deg) scale(1.1);
    }

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-item {
    transition: var(--transition);
}

    .nav-item:hover {
        transform: translateY(-2px);
    }

.nav-link {
    color: #fff !important;
    font-weight: 500;
    padding: 0.6rem 1rem !important;
    border-radius: 8px;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

    .nav-link i {
        margin-right: 8px;
        font-size: 1.1rem;
    }

    .nav-link:hover {
        background: rgba(255, 255, 255, 0.15);
        transform: translateY(-2px);
    }

/* Dropdown */
.dropdown-menu {
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    animation: fadeIn 0.3s ease forwards;
    border: none;
    margin-top: 0.5rem;
}

.dropdown-item {
    border-radius: 6px;
    padding: 0.6rem 1rem;
    transition: var(--transition);
    color: var(--dark);
}

    .dropdown-item:hover {
        background-color: #f0f5ff;
        transform: translateX(5px);
        color: var(--primary);
    }

/* Toggler */
.navbar-toggler {
    border: none;
    padding: 0.5rem;
    transition: var(--transition);
}

    .navbar-toggler:focus {
        box-shadow: none;
    }

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===================== CONTAINER ===================== */
.container {
    flex: 1;
    padding-top: 2rem;
    padding-bottom: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    transition: var(--transition);
}

main {
    animation: fadeIn 0.5s ease;
}

/* ===================== CARDS ===================== */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
    margin-bottom: 1.5rem;
    background: #fff;
}

    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    }

.card-body {
    padding: 1.5rem;
}

.card-header {
    background: linear-gradient(135deg, var(--primary), var(--info));
    color: #fff;
    padding: 1rem 1.5rem;
    font-weight: 600;
    border: none;
}

.card-footer {
    background: rgba(0,0,0,0.03);
    border-top: 1px solid rgba(0,0,0,0.05);
    padding: 1rem 1.5rem;
}

.card-title {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

/* ===================== BUTTONS ===================== */
.btn {
    border-radius: 10px;
    padding: 0.7rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    font-size: 0.95rem;
}

    .btn i {
        margin-right: 8px;
    }

    .btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    }

/* Button variants */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--info));
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #34d399);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #f56565);
}

/* ===================== TABLES ===================== */
.table {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

    .table th {
        background: linear-gradient(135deg, var(--primary), var(--info));
        color: #fff;
        font-weight: 600;
        border: none;
        padding: 1rem;
    }

    .table td {
        padding: 1rem;
        border-color: rgba(0,0,0,0.05);
    }

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0,0,0,0.02);
}

.table-hover tbody tr {
    transition: var(--transition);
}

    .table-hover tbody tr:hover {
        background-color: rgba(0,0,0,0.05);
        transform: scale(1.01);
    }

/* ===================== FORMS ===================== */
.form-control {
    border-radius: 10px;
    padding: 0.8rem 1.2rem;
    border: 1px solid #e9ecef;
    transition: var(--transition);
    font-size: 0.95rem;
}

    .form-control:focus {
        box-shadow: 0 0 0 3px rgba(67,97,238,0.15);
        border-color: var(--primary);
        transform: translateY(-2px);
    }

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

/* ===================== ALERTS ===================== */
.alert {
    border-radius: var(--border-radius);
    padding: 1rem 1.5rem;
    border: none;
    font-weight: 500;
}

.alert-success {
    background: linear-gradient(135deg, var(--success), rgba(45, 206, 137, 0.9));
    color: #fff;
}

.alert-danger {
    background: linear-gradient(135deg, var(--danger), rgba(230, 57, 70, 0.9));
    color: #fff;
}

.alert-warning {
    background: linear-gradient(135deg, var(--warning), rgba(251, 177, 64, 0.9));
    color: #fff;
}

/* ===================== FOOTER ===================== */
.footer {
    background: white;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.05);
    padding: 1.5rem 0;
    margin-top: auto;
    text-align: center;
}

/* ===================== ANIMATIONS ===================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: var(--card-shadow);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 0 25px rgba(67,97,238,0.3);
    }

    100% {
        transform: scale(1);
        box-shadow: var(--card-shadow);
    }
}

.pulse-animation {
    animation: pulse 2s infinite;
}

.hover-lift {
    transition: var(--transition);
}

    .hover-lift:hover {
        transform: translateY(-5px);
    }

/* ===================== DASHBOARD CARDS ===================== */
.dashboard-card {
    height: 100%;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

    .dashboard-card:hover {
        transform: translateY(-8px);
    }

        .dashboard-card:hover .card-footer {
            background: rgba(255,255,255,0.2);
        }

/* Status badges */
.badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
}

.badge-success {
    background: linear-gradient(135deg, var(--success), #34d399);
}

.badge-warning {
    background: linear-gradient(135deg, var(--warning), #f6ad55);
}

.badge-danger {
    background: linear-gradient(135deg, var(--danger), #f56565);
}

.badge-info {
    background: linear-gradient(135deg, var(--info), #4299e1);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 992px) {
    .navbar-nav {
        flex-direction: column;
        gap: 0.3rem;
        padding-top: 0.5rem;
    }

    .nav-link {
        padding: 0.5rem !important;
    }
}

@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.3rem;
    }

    .nav-link {
        padding: 0.4rem 0.8rem !important;
        font-size: 0.95rem;
    }

    .card-body {
        padding: 1rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 1rem;
    }

    .card-body {
        padding: 0.8rem;
    }

    .modal-dialog {
        margin: 0.5rem;
    }

    .table th,
    .table td {
        padding: 0.75rem 0.5rem;
        font-size: 0.9rem;
    }
}

/* Utility classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--info));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-lg {
    box-shadow: 0 10px 40px rgba(0,0,0,0.15) !important;
}

/* Loading spinner */
.spinner-border {
    width: 1.5rem;
    height: 1.5rem;
    border-width: 2px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary), var(--info));
    border-radius: 10px;
}

    ::-webkit-scrollbar-thumb:hover {
        background: linear-gradient(135deg, var(--info), var(--primary));
    }