:root {
    --sidebar-width: 260px;
    --sidebar-bg: #ffffff;
    --sidebar-color: #333;
    --sidebar-active-bg: #f8f9fa;
    --sidebar-active-color: #0d6efd;
    --main-bg: #f4f7f6;
    --header-height: 60px;
    --transition-speed: 0.3s;
}

[data-bs-theme="dark"] {
    --sidebar-bg: #1a1d21;
    --sidebar-color: #ced4da;
    --sidebar-active-bg: #2b3035;
    --sidebar-active-color: #fff;
    --main-bg: #121416;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--main-bg);
    transition: background-color var(--transition-speed);
}

/* Sidebar Styling */
#sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-color);
    transition: all var(--transition-speed);
    z-index: 1000;
    border-right: 1px solid rgba(0,0,0,0.1);
}

[data-bs-theme="dark"] #sidebar {
    border-right: 1px solid rgba(255,255,255,0.05);
}

#sidebar .sidebar-header {
    padding: 20px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--sidebar-active-color);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

#sidebar .nav-link {
    padding: 12px 20px;
    color: var(--sidebar-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s;
}

#sidebar .nav-link:hover, #sidebar .nav-link.active {
    background-color: var(--sidebar-active-bg);
    color: var(--sidebar-active-color);
}

#sidebar .nav-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

/* Content Area */
#content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    min-height: 100vh;
    transition: all var(--transition-speed);
}

.topbar {
    height: var(--header-height);
    background-color: var(--sidebar-bg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* Mobile Sidebar */
@media (max-width: 991.98px) {
    #sidebar {
        margin-left: calc(-1 * var(--sidebar-width));
    }
    #sidebar.active {
        margin-left: 0;
    }
    #content {
        margin-left: 0;
        width: 100%;
    }
    #content.active {
        margin-left: var(--sidebar-width);
    }
}

/* Glassmorphism for cards */
.card-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

[data-bs-theme="dark"] .card-glass {
    background: rgba(33, 37, 41, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    background: var(--sidebar-bg);
}
/* Headless mode for image capture */
body.headless #sidebar, 
body.headless .topbar,
body.headless .form-section,
body.headless button:not(.btn-adb),
body.headless .btn-outline-secondary,
body.headless .no-print {
    display: none !important;
}

body.headless #content {
    margin-left: 0 !important;
    width: 100% !important;
}

body.headless main {
    padding: 0 !important;
}