/* Global Reset & Theme */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f4f6fa;
    color: #1e293b;
    overflow-x: hidden;
}

/* Header & Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ffffff;
    padding: 15px 40px;
    border-bottom: 2px solid #0088ff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo-n {
    font-size: 24px;
    font-weight: 700;
    color: #031249;
}

.logo-h {
    font-size: 24px;
    font-weight: 700;
    color: #0088ff;
    display: inline-block;
}

.tagline {
    font-size: 9px;
    letter-spacing: 2px;
    color: #64748b;
    margin-top: -2px;
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    display: none;
    background-color: #0088ff;
    color: white;
    border: none;
    padding: 10px 15px;
    font-size: 20px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s ease;
    margin-left: 15px;
}

.sidebar-toggle:hover {
    background-color: #0066cc;
}

.sidebar-toggle i {
    pointer-events: none;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropbtn {
    background-color: #0088ff;
    color: white;
    padding: 12px 20px;
    font-size: 16px;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.dropbtn:hover {
    background-color: #0066cc;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: #ffffff;
    min-width: 220px;
    box-shadow: 0px 8px 24px rgba(0, 0, 0, 0.12);
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    z-index: 1;
}

.dropdown-content a {
    color: #334155;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    transition: background 0.2s, color 0.2s;
}

.dropdown-content a:hover {
    background-color: #f1f5f9;
    color: #0088ff;
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* Layout Container */
.main-container {
    display: flex;
    margin-top: 75px;
    min-height: calc(100vh - 75px);
}

/* Sidebar Styling */
.sidebar {
    width: 280px;
    background-color: #ffffff;
    border-right: 1px solid #e2e8f0;
    padding: 30px 20px;
    position: fixed;
    height: calc(100vh - 75px);
    overflow-y: auto;
    transition: transform 0.3s ease;
    z-index: 998;
}

.sidebar.hidden {
    transform: translateX(-100%);
}

.sidebar h3 {
    color: #031249;
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f1f5f9;
    text-transform: uppercase;
}

.sidebar ul {
    list-style: none;
}

.sidebar ul li {
    margin-bottom: 12px;
}

.sidebar ul li a {
    color: #475569;
    text-decoration: none;
    font-size: 15px;
    display: block;
    padding: 10px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.sidebar ul li a:hover,
.sidebar ul li a.active {
    background-color: #f0f7ff;
    color: #0088ff;
    font-weight: 600;
    padding-left: 15px;
}

/* Content Area */
.content {
    margin-left: 280px;
    width: calc(100% - 280px);
    height: calc(100vh - 75px);
    padding: 20px;
    transition: margin-left 0.3s ease, width 0.3s ease;
}

.content.expanded {
    margin-left: 0;
    width: 100%;
}

#content-frame {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    background-color: #ffffff;
}

/* Mobile Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 997;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* =========================
   DESKTOP - Show toggle on all screens
========================= */
@media screen and (min-width: 769px) {
    .sidebar-toggle {
        display: inline-block;
    }
}

/* =========================
   TABLET RESPONSIVE
========================= */
@media screen and (max-width: 1024px) and (min-width: 769px) {
    .sidebar {
        width: 250px;
    }

    .content {
        margin-left: 250px;
        width: calc(100% - 250px);
    }
}

/* =========================
   MOBILE RESPONSIVE
========================= */
@media screen and (max-width: 768px) {

    .navbar {
        padding: 12px 15px;
        flex-wrap: wrap;
    }

    .sidebar-toggle {
        display: inline-block;
        order: 2;
    }

    .logo {
        order: 1;
    }

    .nav-menu {
        order: 3;
        width: 100%;
        margin-top: 10px;
    }

    .main-container {
        margin-top: 110px;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 110px;
        width: 280px;
        height: calc(100vh - 110px);
        z-index: 999;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
        transform: translateX(-100%);
    }

    .sidebar.visible {
        transform: translateX(0);
    }

    .sidebar.hidden {
        transform: translateX(-100%);
    }

    .sidebar h3 {
        font-size: 16px;
    }

    .sidebar ul li a {
        font-size: 14px;
        padding: 8px;
    }

    .content {
        margin-left: 0;
        width: 100%;
        height: calc(100vh - 110px);
        padding: 10px;
    }

    .content.expanded {
        margin-left: 0;
    }

    #content-frame {
        width: 100%;
        height: 100%;
        min-height: 500px;
        border-radius: 6px;
    }

    .dropdown-content {
        min-width: 180px;
    }

    .dropbtn {
        width: 100%;
        font-size: 14px;
        padding: 10px 14px;
    }

    .logo-n,
    .logo-h {
        font-size: 20px;
    }

    .tagline {
        font-size: 8px;
    }
}

/* =========================
   SMALL MOBILE
========================= */
@media screen and (max-width: 480px) {
    .navbar {
        padding: 10px 12px;
    }

    .sidebar {
        width: 260px;
    }

    .logo-n,
    .logo-h {
        font-size: 18px;
    }

    .tagline {
        font-size: 7px;
        letter-spacing: 1px;
    }

    .dropbtn {
        font-size: 13px;
        padding: 8px 12px;
    }

    .sidebar-toggle {
        padding: 8px 12px;
        font-size: 18px;
    }
}

/* =========================
   EXTRA SMALL MOBILE
========================= */
@media screen and (max-width: 360px) {
    .sidebar {
        width: 240px;
    }

    .logo-n,
    .logo-h {
        font-size: 16px;
    }

    .tagline {
        font-size: 6px;
    }
}