/* Jumbotron styles */
.jumbotron {
    padding: 2rem 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    overflow: hidden;
    min-height: 220px;
    height: 220px;
    opacity: 1;
    background: linear-gradient(135deg, 
        #40c8bb 0%, 
        #34b5a7 25%,
        #3ec4b7 50%,
        #34b5a7 75%,
        #40c8bb 100%);
    background-size: 300% 300%;
    animation: gradientShift 15s ease infinite;
    will-change: transform, background-position;
    transition: all 0.3s ease-in-out;
}

@keyframes gradientShift {
    0% { background-position: 0% 50% }
    50% { background-position: 100% 50% }
    100% { background-position: 0% 50% }
}

/* Container and logo styles */
.flex-container {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    opacity: 0;
    animation: smoothFade 0.4s ease-out forwards;
    will-change: opacity, transform;
}

.flex-items {
    text-align: center;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-items img {
    max-width: 500px;
    width: auto;
    height: 150px;
    padding: 0.5rem;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.08));
}

@keyframes smoothFade {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar styles */
.navbar {
    padding: 0.5rem 0.7rem;
    min-height: 65px;
}

.navbar .nav-link {
    font-size: 1.2rem;
    padding: 0.4rem 0.6rem 0.4rem 0.8rem;
    color: rgba(255, 255, 255, 0.9) !important;
}

.navbar .nav-link:hover {
    color: #ffffff !important;
}

/* Auth nav buttons */
.navbar .nav-item:has(> .nav-link[href*="login"]),
.navbar .nav-item:has(> .nav-link[href*="signup"]) {
    margin: 0 0.2rem;
}

.navbar .nav-item:has(> .nav-link[href*="login"]) .nav-link,
.navbar .nav-item:has(> .nav-link[href*="signup"]) .nav-link {
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 0.375rem;
    padding: 0.4rem 1rem;
    transition: all 0.2s ease-in-out;
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.1);
}

.navbar .nav-item:has(> .nav-link[href*="login"]) .nav-link:hover {
    background-color: #40c8bb;
    color: #ffffff !important;
    border-color: #40c8bb;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(64, 200, 187, 0.4);
}

.navbar .nav-item:has(> .nav-link[href*="signup"]) .nav-link:hover {
    background-color: #0d6efd;
    color: #ffffff !important;
    border-color: #0d6efd;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.4);
}

.navbar .nav-item:has(> .nav-link[href*="login"]) .nav-link:active {
    transform: translateY(0);
    background-color: #34b5a7;
    border-color: #34b5a7;
    box-shadow: 0 1px 4px rgba(64, 200, 187, 0.3);
}

.navbar .nav-item:has(> .nav-link[href*="signup"]) .nav-link:active {
    transform: translateY(0);
    background-color: #0b5ed7;
    border-color: #0b5ed7;
    box-shadow: 0 1px 4px rgba(13, 110, 253, 0.3);
}

.navbar-brand {
    font-size: 24px;
    text-align: center;
    padding: 0;
    margin-right: 0.2rem;
}

#brand-img {
    vertical-align: middle;
    width: 40px;
    height: auto;
    padding-right: 3px;
}

/* Sign out button styles */
.navbar .btn-outline-light {
    font-size: 1.2rem;
    padding: 0.4rem 1rem;
    margin: 0 0.3rem;
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: all 0.2s ease-in-out;
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}

.navbar .btn-outline-light:hover {
    background-color: transparent;
    border-color: #dc3545;
    color: #dc3545 !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.2);
}

.navbar .btn-outline-light:active {
    transform: translateY(0);
    background-color: transparent !important;
    border-color: #bb2d3b !important;
    color: #bb2d3b !important;
    box-shadow: 0 1px 4px rgba(220, 53, 69, 0.15) !important;
}

/* Dropdown styles */
.dropdown-menu {
    padding: 0.3rem 0;
    margin-top: 0;
    background-color: #343a40;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease-in-out;
    display: block;
}

.navbar .nav-item {
    position: relative;
    padding: 0.3rem 0;
}

.navbar .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
}

.dropdown:hover > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
}

.dropdown {
    padding-bottom: 0.3rem;
}

.dropdown-item {
    font-size: 1.1rem;
    padding: 0.5rem 1.2rem;
    color: rgba(255, 255, 255, 0.85);
    border-radius: 0.3rem;
    transition: all 0.15s ease-in-out;
}

.dropdown-item:hover {
    background-color: #495057;
    color: #ffffff;
}

/* Table styles */
.table-dark {
    border-radius: 5px !important;
}

.table-dark th {
    border-top: 0;
}

.table thead th {
    vertical-align: left;
    text-align: center;
}

td {
    text-align: center;
}

/* DataTables specific styles */
div.dataTables_filter, 
div.dataTables_length {
    padding: 5px;
}

/* Form styles */
.form-group.row {
    padding: 10px;
}

.w-45 {
    width: 48% !important;
}

/* Responsive styles */
@media (max-width: 768px) {
    .navbar {
        padding: 0.4rem 0.8rem;
        min-height: 55px;
    }

    .navbar .nav-link {
        padding: 0.3rem 0.6rem;
    }

    .jumbotron {
        padding: 1.5rem;
        height: 180px;
        min-height: 180px;
    }

    .flex-items img {
        height: 120px;
        max-width: 400px;
    }
}

/* Container utilities */
.container-fluid {
    padding: 0;
}

.nowrap {
    white-space: nowrap;
}

/* Split dropdown styles */
.dropdown-toggle-split {
    padding: 0.4rem 0.4rem;
    margin-left: -0.4rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}

.dropdown-toggle-split:hover {
    color: #ffffff;
}

.dropdown-toggle-split::after {
    display: inline-block;
    margin-left: 0.2em;
    vertical-align: 0.255em;
    content: "";
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
}

.nav-item.dropdown .d-flex {
    align-items: center;
}