/* Import Inter Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* Root Variables */
:root {
    --sidebar-width: 260px;
    --sidebar-bg: #1e293b;
    --sidebar-hover: #334155;
    --sidebar-active: #3b82f6;
    --topbar-height: 60px;
    --accent-color: #3b82f6;
    --text-muted: #64748b;
}

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

html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f8fafc;
    color: #1e293b;
    margin: 0;
    overflow-x: hidden;
}

/* Wrapper Layout */
.wrapper {
    display: flex;
    width: 100%;
    align-items: stretch;
    min-height: 100vh;
}

/* Sidebar Styles */
.sidebar {
    min-width: var(--sidebar-width);
    max-width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: #fff;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 999;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar.active {
    margin-left: calc(-1 * var(--sidebar-width));
}

.sidebar-header {
    padding: 1.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar ul.components {
    padding: 1rem 0;
}

.sidebar ul li {
    position: relative;
}

.sidebar ul li a {
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.sidebar ul li a:hover {
    color: #fff;
    background: var(--sidebar-hover);
    border-left-color: var(--sidebar-active);
}

.sidebar ul li a.active,
.sidebar ul li a:active {
    background: var(--sidebar-hover);
    border-left-color: var(--sidebar-active);
    color: #fff;
}

.sidebar ul li a i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.sidebar-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 1rem 0;
}

.sidebar-heading {
    padding: 0.75rem 1.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.5);
}

/* Content Area - FIXED */
#content {
    width: 100%;
    min-height: 100vh;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
}

#content.active {
    margin-left: 0;
}

/* Main Content Container - FIXED */
.container-fluid {
    flex: 1 0 auto;
    padding-bottom: 2rem;
}

/* Top Navigation */
.navbar {
    padding: 0.75rem 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    flex-shrink: 0;
}

#sidebarCollapse {
    color: var(--sidebar-bg);
    font-size: 1.5rem;
    padding: 0.25rem 0.5rem;
    border: none;
    background: transparent;
    transition: all 0.2s ease;
}

#sidebarCollapse:hover {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 0.375rem;
}

.dropdown-toggle {
    color: var(--sidebar-bg) !important;
    font-weight: 500;
}

.dropdown-toggle:hover {
    color: var(--accent-color) !important;
}

.dropdown-menu {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 0.5rem;
}

.dropdown-item {
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: #f1f5f9;
    color: var(--accent-color);
}

/* Footer - FIXED */
.footer {
    flex-shrink: 0;
    background-color: #fff;
    padding: 1rem 0;
}

/* Enhanced Form Controls */
.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25);
}

.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.btn-primary:hover {
    background-color: #2563eb;
    border-color: #2563eb;
}

/* Card Enhancements */
.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.card:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* Table Enhancements */
.table {
    background-color: #fff;
    border-radius: 0.5rem;
    overflow: hidden;
}

.table thead th {
    background-color: #f8fafc;
    border-bottom: 2px solid #e2e8f0;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(248, 250, 252, 0.5);
}

/* Login Page Styles */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
}

.login-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    max-width: 400px;
    width: 100%;
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    text-align: center;
    color: white;
}

.login-header h2 {
    margin: 0;
    font-weight: 600;
    font-size: 1.75rem;
}

.login-header p {
    margin: 0.5rem 0 0;
    opacity: 0.9;
    font-size: 0.95rem;
}

.login-body {
    padding: 2rem;
}

.login-body .form-floating {
    margin-bottom: 1rem;
}

.login-body .btn-login {
    width: 100%;
    padding: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.login-body .btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        margin-left: calc(-1 * var(--sidebar-width));
    }

    .sidebar.active {
        margin-left: 0;
    }

    #content {
        margin-left: 0;
    }

    #content.active {
        margin-left: var(--sidebar-width);
    }
}

/* Scrollbar Styling */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}