/* ==========================================================================
   Vanilla Component Styles (Replacing Bootstrap)
   ========================================================================== */

/* Navbar & Toggler */
.navbar-toggler {
    padding: 0.25rem 0.75rem;
    font-size: 1.25rem;
    line-height: 1;
    background-color: transparent;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 0.25rem;
    cursor: pointer;
}
.navbar-toggler-icon {
    display: inline-block;
    width: 1.5em;
    height: 1.5em;
    vertical-align: middle;
    content: "";
    background: no-repeat center center;
    background-size: 100% 100%;
    background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='rgba(0, 0, 0, 0.5)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.nav-item {
    margin-bottom: 0;
}
.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    color: rgba(0, 0, 0, 0.5);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}
.nav-link:hover, .nav-item.active .nav-link {
    color: rgba(0, 0, 0, 0.9);
}

/* Dropdowns */
.dropdown {
    position: relative;
}
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    display: none;
    min-width: 10rem;
    padding: 0.5rem 0;
    margin: 0.125rem 0 0;
    font-size: 1rem;
    color: #212529;
    text-align: right;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 0.25rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.175);
}
.dropdown-menu-left {
    right: 0;
    left: auto;
}
.dropdown-menu.show {
    display: block;
}
.dropdown-item {
    display: block;
    width: 100%;
    padding: 0.25rem 1.5rem;
    clear: both;
    font-weight: 400;
    color: #212529;
    text-align: inherit;
    white-space: nowrap;
    background-color: transparent;
    border: 0;
}
.dropdown-item:hover {
    color: #16181b;
    text-decoration: none;
    background-color: #f8f9fa;
}
.dropdown-divider {
    height: 0;
    margin: 0.5rem 0;
    overflow: hidden;
    border-top: 1px solid #e9ecef;
}

/* Collapse / Transitions */
.collapse {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, visibility 0.4s ease;
}
.collapse.show {
    max-height: 1000px;
    opacity: 1;
    visibility: visible;
    overflow: visible;
}

@media (max-width: 991.98px) {
    .navbar-collapse .dropdown-menu {
        position: static;
        float: none;
        box-shadow: none;
        border: none;
        padding-top: 0;
        margin-top: 0;
        background-color: #f8f9fa;
    }
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1050;
    display: none;
    width: 100%;
    height: 100%;
    overflow: hidden;
    outline: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.modal.show {
    display: block;
    overflow-x: hidden;
    overflow-y: auto;
    opacity: 1;
}
.modal-dialog {
    position: relative;
    width: auto;
    margin: 1.5rem auto;
    pointer-events: none;
    max-width: 500px;
    transform: translateY(-30px) scale(0.95);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.modal.show .modal-dialog {
    transform: translateY(0) scale(1);
}
.modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    pointer-events: auto;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background-clip: padding-box;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    outline: 0;
}
.modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 1.5rem 1.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    border-top-left-radius: 24px;
    border-top-right-radius: 24px;
}
.modal-title {
    margin-bottom: 0;
    line-height: 1.5;
}
.modal-body {
    position: relative;
    flex: 1 1 auto;
    padding: 1rem;
}
.modal-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    padding: 0.75rem;
    border-top: 1px solid #dee2e6;
    border-bottom-right-radius: calc(0.3rem - 1px);
    border-bottom-left-radius: calc(0.3rem - 1px);
}
.close {
    float: left;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    color: #000;
    text-shadow: 0 1px 0 #fff;
    opacity: .5;
    background: transparent;
    border: 0;
    cursor: pointer;
}

/* Alerts */
.alert {
    position: relative;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.25rem;
}
.alert-success { color: #155724; background-color: #d4edda; border-color: #c3e6cb; }
.alert-danger { color: #721c24; background-color: #f8d7da; border-color: #f5c6cb; }
.alert-warning { color: #856404; background-color: #fff3cd; border-color: #ffeeba; }
.alert-info { color: #0c5460; background-color: #d1ecf1; border-color: #bee5eb; }

/* Responsive Image */
.img-fluid {
    max-width: 100%;
    height: auto;
}

/* SR Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}