:root {
    --primary-color: #00b764;
    --secondary-color: #00203f;
    --accent-color: #ff6f61;
    --text-color: #2d3436;
    --bg-color: #f0f3ff;
    --sidebar-bg-color: white;
    --border-color: #ddd;
    --highlight-color: #f0fff4;
    --transition-speed: 0.3s;
    --border-radius: 15px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --nav-height: 60px;
    --nav-padding: 1rem;
}

/* Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Navbar Styles */
.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 0.5rem var(--nav-padding);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0;
}

.navbar-brand {
    padding: 0;
    margin-right: 1rem;
}

.navbar-brand img.logo {
    height: 35px;
    width: auto;
}

/* Navigation links */
.navbar-nav {
    display: none;
    width: 100%;
    padding: 1rem 0;
}

.nav-link {
    color: var(--text-color);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link i {
    font-size: 16px;
}

/* User info and logout */
.navbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#userInfo {
    display: none;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
}

.btn-outline-danger {
    padding: 0.5rem 1rem;
    font-size: 14px;
    border: 1px solid #dc3545;
    border-radius: 6px;
    color: #dc3545;
    background: transparent;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline-danger:hover {
    background: #dc3545;
    color: white;
}

/* Mobile menu button */
.navbar-toggler {
    padding: 0.5rem;
    border: 1.5px solid var(--border-color);
    background: transparent;
    cursor: pointer;
    display: block;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.navbar-toggler:hover {
    border-color: var(--primary-color);
    background: var(--highlight-color);
}

.navbar-toggler-icon {
    display: inline-block;
    width: 1.5em;
    height: 1.5em;
    vertical-align: middle;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100%;
}

/* Show toggle button only on mobile */
@media (max-width: 767.98px) {
    .navbar-toggler {
        display: block;
    }
}

@media (min-width: 768px) {
    .navbar-toggler {
        display: none;
    }
}

/* Tablet and desktop styles */
@media (min-width: 768px) {
    :root {
        --nav-padding: 1.5rem;
    }

    .navbar {
        padding: 0 var(--nav-padding);
    }

    .navbar-nav {
        display: flex !important;
        width: auto;
        padding: 0;
        margin: 0 1rem;
    }

    .nav-link {
        padding: 0.5rem 1rem;
        font-size: 15px;
    }

    #userInfo {
        display: flex;
    }
}

/* Desktop styles */
@media (min-width: 992px) {
    :root {
        --nav-padding: 2rem;
        --nav-height: 70px;
    }

    .navbar-brand img.logo {
        height: 40px;
    }

    .nav-link {
        font-size: 16px;
    }

    .btn-outline-danger {
        padding: 0.625rem 1.25rem;
        font-size: 15px;
    }
}

/* Mobile menu open state */
.navbar-collapse.show {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: white;
    padding: 1rem var(--nav-padding);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-collapse.show .navbar-nav {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.navbar-collapse.show #userInfo {
    display: flex;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
}

.navbar-collapse.show .btn-outline-danger {
    width: 100%;
    justify-content: center;
}

@media (max-width: 575.98px) {
    .navbar {
        padding: 0.5rem 1rem;
    }

    .navbar-brand img.logo {
        height: 32px;
    }

    .container {
        padding: 0 0.5rem;
    }

    .navbar-toggler {
        padding: 0.25rem 0.5rem;
        font-size: 1rem;
    }
}