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

:root {
    --primary: #0A2540;
    --secondary: #3B82F6;
    --accent: #64748B;
    --success: #16A34A;
    --danger: #DC2626;
    --warning: #F59E0B;
    --info: #0EA5E9;
    --light: #F8FAFC;
    --dark: #1E293B;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --sidebar-width: 260px;
    --topbar-height: 70px;
}

[data-theme="dark"] {
    --light: #0F172A;
    --dark: #F8FAFC;
    --gray-100: #1E293B;
    --gray-200: #334155;
    --gray-300: #475569;
    --gray-400: #64748B;
    --gray-500: #94A3B8;
    --gray-600: #CBD5E1;
    --gray-700: #E2E8F0;
    --gray-800: #F1F5F9;
    --gray-900: #F8FAFC;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--light);
    color: var(--gray-800);
    transition: background-color 0.3s ease, color 0.3s ease;
}

[data-theme="dark"] body {
    background-color: var(--gray-900);
    color: var(--gray-200);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary) !important;
    border-color: var(--primary) !important;
}
.btn-primary:hover {
    background-color: #081f36 !important;
    border-color: #081f36 !important;
}
.btn-secondary {
    background-color: var(--secondary) !important;
    border-color: var(--secondary) !important;
}

/* Cards */
.card {
    background-color: white;
    border: none;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}
[data-theme="dark"] .card {
    background-color: var(--gray-800);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background-color: var(--primary);
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    overflow-y: auto;
}

.sidebar .logo {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-nav .nav-link {
    color: rgba(255,255,255,0.8);
    padding: 0.75rem 1.5rem;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
}
.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
    background-color: rgba(255,255,255,0.1);
    color: white;
    border-left-color: var(--secondary);
}

/* Topbar */
.topbar {
    height: var(--topbar-height);
    background-color: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-left: var(--sidebar-width);
    transition: all 0.3s ease;
}
[data-theme="dark"] .topbar {
    background-color: var(--gray-800);
    box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding-top: var(--topbar-height);
    transition: all 0.3s ease;
    background-color: var(--light);
}
[data-theme="dark"] .main-content {
    background-color: var(--gray-900);
}

/* Collapsed Sidebar */
.sidebar.collapsed {
    width: 70px;
}
.sidebar.collapsed ~ .topbar,
.sidebar.collapsed ~ .main-content {
    margin-left: 70px;
}
.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-text {
    display: none;
}
.sidebar.collapsed .nav-link {
    padding: 0.75rem;
    text-align: center;
}

/* Responsive */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.active {
        transform: translateX(0);
    }
    .topbar, .main-content {
        margin-left: 0 !important;
    }
}