:root {
    --primary-bg: #0b172a; /* Deep Navy Blue */
    --secondary-bg: #16263d; /* Lighter Navy/Slate */
    --tertiary-bg: #1e3a5f; /* Even lighter blue */
    --text-color: #ffffff;
    --text-muted: #b0c4de; /* Light Steel Blue */
    --primary-accent: #0091ff; /* Bright Blue */
    --secondary-accent: #007acc; /* Slightly darker blue */
    --border-color: #2c3e50;
    --input-bg: #1e3a5f;
    --input-border: #4a6fa5;
    --success-color: #00c087; /* Webull-ish Green */
    --warning-color: #ffc107;
    --danger-color: #ff4d4f; /* Webull-ish Red */
}

/* Base Styles */
body { font-family: sans-serif; margin: 0; padding: 0; background-color: var(--primary-bg); color: var(--text-color); }
.container { padding: 20px; }

/* Force text color on common containers that might be overridden by Bootstrap */
.card, .modal-content, .dropdown-menu, .list-group-item, .table {
    color: var(--text-color) !important;
}

/* Global Link Styles */
a { color: #69b4ff; text-decoration: none; transition: color 0.2s; }
a:hover { color: #9ecfff; text-decoration: underline; }

/* Navbar Styles */
.navbar { background-color: var(--secondary-bg); border-bottom: 1px solid var(--border-color); overflow: hidden; padding: 10px 20px; display: flex; justify-content: space-between; align-items: center; font-family: sans-serif; }
.navbar a:not(.btn) { float: left; display: block; color: var(--text-color); text-align: center; padding: 14px 16px; text-decoration: none; font-size: 17px; font-weight: bold; }
.navbar a:not(.btn):hover { background-color: var(--tertiary-bg); color: white; }
.navbar a.active, .navbar .dropbtn.active { background-color: var(--primary-accent); color: white; }
.navbar .right { display: flex; }

/* Dropdown Styles */
.dropdown { float: left; overflow: hidden; }
.dropdown .dropbtn {
    font-size: 17px;  
    border: none;
    outline: none;
    color: var(--text-color);
    padding: 14px 16px;
    background-color: inherit;
    font-family: inherit;
    margin: 0;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
}
.navbar a:hover, .dropdown:hover .dropbtn { background-color: var(--tertiary-bg); color: white; }
.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--secondary-bg);
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 9999;
    border: 1px solid var(--border-color);
}
.dropdown-content a {
    float: none !important;
    color: var(--text-color) !important;
    padding: 12px 16px !important;
    text-decoration: none !important;
    display: block !important;
    text-align: left !important;
}
.dropdown-content a:hover { background-color: var(--tertiary-bg); }
.dropdown:hover .dropdown-content { display: block; }

/* Button Styles */
.btn { 
    display: inline-flex; 
    align-items: center; 
    justify-content: center; 
    padding: 10px 20px; 
    background: var(--primary-accent); 
    color: white; 
    text-decoration: none; 
    border-radius: 5px; 
    border: none; 
    cursor: pointer; 
    font-size: 14px; 
    line-height: 1.5; 
    vertical-align: middle; 
    font-family: inherit; 
    font-weight: bold;
    height: 41px; /* Enforce consistent height */
    box-sizing: border-box;
}
.btn:hover { background: var(--secondary-accent); }
.btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    margin-right: 8px;
}

/* Table Styles */
table { width: 100%; border-collapse: collapse; margin-bottom: 1rem; color: var(--text-color); }
th { 
    padding: 16px 15px; 
    text-align: left; 
    border-bottom: 1px solid var(--border-color); 
    background-color: var(--secondary-bg); 
    font-weight: bold; 
    text-transform: uppercase; 
    font-size: 0.85rem; 
    letter-spacing: 0.5px; 
    color: #f8f9fa; 
}
td { 
    padding: 5px 15px; 
    text-align: left; 
    border-bottom: 1px solid var(--border-color); 
    color: var(--text-color); 
}
tr:hover { background-color: var(--tertiary-bg); color: var(--text-color); }

/* Card Styles */
.card { background-color: var(--secondary-bg); border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden; margin-bottom: 20px; color: var(--text-color); }
.card-header { background-color: var(--tertiary-bg); padding: 15px 20px; border-bottom: 1px solid var(--border-color); font-weight: bold; color: var(--text-color); }
.card-body { padding: 20px; color: var(--text-color); }
.card-footer { padding: 15px 20px; background-color: var(--tertiary-bg); border-top: 1px solid var(--border-color); color: var(--text-color); }

/* Utility Classes */
.d-flex { display: flex; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-0 { margin-bottom: 0; }
.p-0 { padding: 0; }
.text-center { text-align: center; }
.w-100 { width: 100%; }
.text-decoration-none { text-decoration: none; }
.fw-bold { font-weight: bold; }
.text-muted { color: var(--text-muted); }
.small { font-size: 0.875em; }

/* Form Control */
.form-control { width: 100%; padding: 10px; box-sizing: border-box; background-color: var(--input-bg); border: 1px solid var(--input-border); color: var(--text-color); border-radius: 4px; }
.form-control:focus { outline: none; border-color: var(--primary-accent); }

/* Pagination */
.pagination { display: flex; padding-left: 0; list-style: none; border-radius: 0.25rem; }
.page-item { margin: 0 2px; }
.page-link { position: relative; display: block; padding: 0.5rem 0.75rem; margin-left: -1px; line-height: 1.25; color: #69b4ff; background-color: var(--secondary-bg); border: 1px solid var(--border-color); text-decoration: none; border-radius: 4px; }
.page-link:hover { z-index: 2; color: white; text-decoration: none; background-color: var(--tertiary-bg); border-color: var(--border-color); }
.page-item.active .page-link { z-index: 3; color: #fff; background-color: var(--primary-accent); border-color: var(--primary-accent); }
.page-item.disabled .page-link { color: var(--text-muted); pointer-events: none; cursor: auto; background-color: var(--secondary-bg); border-color: var(--border-color); }

/* Badges */
.badge { display: inline-block; padding: 0.35em 0.65em; font-size: 0.75em; font-weight: 700; line-height: 1; color: #fff; text-align: center; white-space: nowrap; vertical-align: baseline; border-radius: 0.25rem; }
.bg-success { background-color: var(--success-color); }
.bg-secondary { background-color: #6c757d; }
.bg-primary { background-color: var(--primary-accent); }

/* Button Variants */
.btn-primary { background-color: var(--primary-accent); color: white; }
.btn-outline-primary { background-color: transparent; border: 1px solid var(--primary-accent); color: #69b4ff; }
.btn-outline-primary:hover { background-color: var(--primary-accent); color: white; }
.btn-outline-secondary { background-color: transparent; border: 1px solid var(--text-muted); color: var(--text-muted); }
.btn-outline-secondary:hover { background-color: var(--text-muted); color: var(--secondary-bg); }
.btn-sm { padding: 5px 10px; font-size: 12px; height: auto; }

/* Grid System (Simple) */
.row { display: flex; flex-wrap: wrap; margin-right: -15px; margin-left: -15px; }
.col-md-4, .col-md-8 { position: relative; width: 100%; padding-right: 15px; padding-left: 15px; box-sizing: border-box; }

@media (min-width: 768px) {
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
}

/* Helpers */
.table-responsive { display: block; width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.list-unstyled { padding-left: 0; list-style: none; }
.me-2 { margin-right: 0.5rem; }

/* Side Drawer Styles */
.side-drawer {
    position: fixed;
    top: 0;
    left: -100%;
    width: 90%; /* Adjust as needed */
    max-width: 1200px;
    height: 100%;
    background-color: var(--secondary-bg);
    box-shadow: 2px 0 5px rgba(0,0,0,0.5);
    z-index: 2000;
    transition: left 0.3s ease;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
}
.side-drawer.open {
    left: 0;
}
.drawer-header {
    padding: 10px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--tertiary-bg);
}
.drawer-header h2 {
    margin: 0;
    font-size: 1.5rem;
}
.drawer-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}
.drawer-column {
    flex: 1;
    padding: 20px;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    min-width: 250px;
}
.drawer-column:last-child {
    border-right: none;
}
.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1999;
    display: none;
}
.drawer-overlay.show {
    display: block;
}

/* Login Drawer Specifics */
.login-drawer {
    width: 400px;
    max-width: 100%;
}

/* Modal Styles */
.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.7); }
.modal-content { background-color: var(--secondary-bg); margin: 15% auto; padding: 20px; border: 1px solid var(--border-color); width: 400px; border-radius: 8px; color: var(--text-color); }
.close { color: var(--text-muted); float: right; font-size: 28px; font-weight: bold; cursor: pointer; }
.close:hover, .close:focus { color: white; text-decoration: none; cursor: pointer; }
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; color: var(--text-color); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 8px; box-sizing: border-box; background-color: var(--input-bg); border: 1px solid var(--input-border); color: var(--text-color); border-radius: 4px; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-accent); }

/* Toast Notifications */
#toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 2000; }
.toast {
    background-color: var(--secondary-bg);
    color: var(--text-color);
    border-left: 4px solid var(--primary-accent);
    padding: 15px 20px;
    margin-top: 10px;
    border-radius: 4px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    min-width: 250px;
}
.toast.show { opacity: 1; }
.toast.success { border-left-color: var(--success-color); }
.toast.error { border-left-color: var(--danger-color); }
.toast.warning { border-left-color: var(--warning-color); }

/* --- Additional UI Components for Future Use --- */

/* Alerts (Static) */
.alert { padding: 15px; margin-bottom: 20px; border: 1px solid transparent; border-radius: 4px; }
.alert-success { color: #d4edda; background-color: rgba(0, 192, 135, 0.2); border-color: rgba(0, 192, 135, 0.3); }
.alert-danger { color: #f8d7da; background-color: rgba(255, 77, 79, 0.2); border-color: rgba(255, 77, 79, 0.3); }
.alert-warning { color: #fff3cd; background-color: rgba(255, 193, 7, 0.2); border-color: rgba(255, 193, 7, 0.3); }
.alert-info { color: #d1ecf1; background-color: rgba(0, 145, 255, 0.2); border-color: rgba(0, 145, 255, 0.3); }

/* Tabs */
.nav-tabs { display: flex; border-bottom: 1px solid var(--border-color); margin-bottom: 1rem; }
.nav-link { display: block; padding: 0.5rem 1rem; color: var(--text-muted); text-decoration: none; border: 1px solid transparent; border-top-left-radius: 0.25rem; border-top-right-radius: 0.25rem; cursor: pointer; transition: all 0.2s; }
.nav-link:hover { color: var(--text-color); border-color: transparent; background-color: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--primary-accent); background-color: transparent; border-color: var(--border-color) var(--border-color) transparent; border-bottom: 2px solid var(--primary-accent); margin-bottom: -1px; }
.tab-content > .tab-pane { display: none; }
.tab-content > .active { display: block; }

/* Breadcrumbs */
.breadcrumb { display: flex; flex-wrap: wrap; padding: 0.75rem 1rem; margin-bottom: 1rem; list-style: none; background-color: var(--secondary-bg); border-radius: 0.25rem; }
.breadcrumb-item + .breadcrumb-item { padding-left: 0.5rem; }
.breadcrumb-item + .breadcrumb-item::before { display: inline-block; padding-right: 0.5rem; color: var(--text-muted); content: "/"; }
.breadcrumb-item.active { color: var(--text-muted); }

/* Avatars */
.avatar { vertical-align: middle; width: 40px; height: 40px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border-color); }
.avatar-sm { width: 30px; height: 30px; }
.avatar-lg { width: 60px; height: 60px; }

/* Progress Bars */
.progress { display: flex; height: 1rem; overflow: hidden; font-size: 0.75rem; background-color: var(--tertiary-bg); border-radius: 0.25rem; margin-bottom: 1rem; }
.progress-bar { display: flex; flex-direction: column; justify-content: center; color: #fff; text-align: center; white-space: nowrap; background-color: var(--primary-accent); transition: width 0.6s ease; }

/* Spinners / Loaders */
.spinner-border { display: inline-block; width: 2rem; height: 2rem; vertical-align: text-bottom; border: 0.25em solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spinner-border .75s linear infinite; color: var(--primary-accent); }
.spinner-sm { width: 1rem; height: 1rem; border-width: 0.2em; }
@keyframes spinner-border { to { transform: rotate(360deg); } }

/* Switch / Toggle */
.form-switch { display: flex; align-items: center; }
.form-switch-input { appearance: none; width: 2.5em; height: 1.25em; background-color: var(--input-bg); border: 1px solid var(--input-border); border-radius: 2em; position: relative; cursor: pointer; transition: background-color 0.2s; }
.form-switch-input::after { content: ''; position: absolute; top: 0.1em; left: 0.1em; width: 1em; height: 1em; background-color: var(--text-muted); border-radius: 50%; transition: transform 0.2s; }
.form-switch-input:checked { background-color: var(--primary-accent); border-color: var(--primary-accent); }
.form-switch-input:checked::after { transform: translateX(1.25em); background-color: white; }
.form-switch-label { margin-left: 0.5em; cursor: pointer; }

/* Empty State */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.empty-state-icon { font-size: 3em; margin-bottom: 15px; opacity: 0.5; }
.empty-state-text { font-size: 1.1em; }

/* Typography */
h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 { margin-top: 0; margin-bottom: 0.5rem; font-weight: 500; line-height: 1.2; color: var(--text-color) !important; }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }
.lead { font-size: 1.25rem; font-weight: 300; color: var(--text-muted); }
.blockquote { margin-bottom: 1rem; font-size: 1.25rem; border-left: 4px solid var(--primary-accent); padding-left: 1rem; color: var(--text-muted); }
.blockquote-footer { display: block; font-size: 0.875em; color: var(--text-muted); margin-top: 0.5rem; }

/* --- Images & Figures --- */
.img-fluid { max-width: 100%; height: auto; }
.img-thumbnail { padding: 0.25rem; background-color: var(--secondary-bg); border: 1px solid var(--border-color); border-radius: 0.25rem; max-width: 100%; height: auto; }
.figure { display: inline-block; }
.figure-img { margin-bottom: 0.5rem; line-height: 1; }
.figure-caption { font-size: 0.875em; color: var(--text-muted); }

/* --- Advanced Form Elements --- */
/* Checks & Radios */
.form-check { display: block; min-height: 1.5rem; padding-left: 1.5em; margin-bottom: 0.125rem; }
.form-check-input { float: left; margin-left: -1.5em; width: 1em; height: 1em; margin-top: 0.25em; vertical-align: top; background-color: var(--input-bg); background-repeat: no-repeat; background-position: center; background-size: contain; border: 1px solid var(--input-border); appearance: none; print-color-adjust: exact; }
.form-check-input[type="checkbox"] { border-radius: 0.25em; }
.form-check-input[type="radio"] { border-radius: 50%; }
.form-check-input:checked { background-color: var(--primary-accent); border-color: var(--primary-accent); }
.form-check-input:checked[type="checkbox"] { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e"); }
.form-check-input:checked[type="radio"] { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e"); }

/* Range */
.form-range { width: 100%; height: 1.5rem; padding: 0; background-color: transparent; appearance: none; }
.form-range::-webkit-slider-thumb { appearance: none; width: 1rem; height: 1rem; background: var(--primary-accent); border: 0; border-radius: 1rem; cursor: pointer; margin-top: -0.25rem; }
.form-range::-webkit-slider-runnable-track { width: 100%; height: 0.5rem; color: transparent; cursor: pointer; background-color: var(--tertiary-bg); border-color: transparent; border-radius: 1rem; }

/* Input Group */
.input-group { position: relative; display: flex; flex-wrap: wrap; align-items: stretch; width: 100%; }
.input-group > .form-control, .input-group > .form-select { position: relative; flex: 1 1 auto; width: 1%; min-width: 0; }
.input-group-text { display: flex; align-items: center; padding: 0.375rem 0.75rem; font-size: 1rem; font-weight: 400; line-height: 1.5; color: var(--text-muted); text-align: center; white-space: nowrap; background-color: var(--tertiary-bg); border: 1px solid var(--input-border); border-radius: 0.25rem; }
.input-group > :not(:first-child):not(.dropdown-menu):not(.valid-tooltip):not(.valid-feedback):not(.invalid-tooltip):not(.invalid-feedback) { margin-left: -1px; border-top-left-radius: 0; border-bottom-left-radius: 0; }
.input-group > :not(:last-child):not(.dropdown-menu):not(.valid-tooltip):not(.valid-feedback):not(.invalid-tooltip):not(.invalid-feedback) { border-top-right-radius: 0; border-bottom-right-radius: 0; }

/* Floating Labels */
.form-floating { position: relative; }
.form-floating > .form-control { height: calc(3.5rem + 2px); line-height: 1.25; }
.form-floating > label { position: absolute; top: 0; left: 0; height: 100%; padding: 1rem 0.75rem; pointer-events: none; border: 1px solid transparent; transform-origin: 0 0; transition: opacity .1s ease-in-out,transform .1s ease-in-out; color: var(--text-muted); }
.form-floating > .form-control:focus ~ label, .form-floating > .form-control:not(:placeholder-shown) ~ label { opacity: .65; transform: scale(.85) translateY(-0.5rem) translateX(0.15rem); }

/* Validation */
.is-valid { border-color: var(--success-color) !important; padding-right: calc(1.5em + 0.75rem); background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2300c087' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: right calc(0.375em + 0.1875rem) center; background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem); }
.is-invalid { border-color: var(--danger-color) !important; padding-right: calc(1.5em + 0.75rem); background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23ff4d4f'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23ff4d4f' stroke='none'/%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: right calc(0.375em + 0.1875rem) center; background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem); }
.invalid-feedback { display: none; width: 100%; margin-top: 0.25rem; font-size: 0.875em; color: var(--danger-color); }
.is-invalid ~ .invalid-feedback { display: block; }

/* --- Components --- */

/* Accordion */
.accordion-item { background-color: var(--secondary-bg); border: 1px solid var(--border-color); }
.accordion-item:first-of-type { border-top-left-radius: 0.25rem; border-top-right-radius: 0.25rem; }
.accordion-item:last-of-type { border-bottom-left-radius: 0.25rem; border-bottom-right-radius: 0.25rem; }
.accordion-button { position: relative; display: flex; align-items: center; width: 100%; padding: 1rem 1.25rem; font-size: 1rem; color: var(--text-color); text-align: left; background-color: var(--secondary-bg); border: 0; border-radius: 0; overflow-anchor: none; transition: color 0.15s ease-in-out,background-color 0.15s ease-in-out,border-color 0.15s ease-in-out,box-shadow 0.15s ease-in-out,border-radius 0.15s ease; }
.accordion-button:not(.collapsed) { color: var(--primary-accent); background-color: rgba(0, 145, 255, 0.1); box-shadow: inset 0 -1px 0 rgba(0,0,0,.125); }
.accordion-body { padding: 1rem 1.25rem; }

/* Button Group */
.btn-group { position: relative; display: inline-flex; vertical-align: middle; }
.btn-group > .btn { position: relative; flex: 1 1 auto; }
.btn-group > .btn:not(:last-child) { border-top-right-radius: 0; border-bottom-right-radius: 0; border-right: 1px solid rgba(0,0,0,0.2); }
.btn-group > .btn:not(:first-child) { border-top-left-radius: 0; border-bottom-left-radius: 0; }

/* List Group */
.list-group { display: flex; flex-direction: column; padding-left: 0; margin-bottom: 0; border-radius: 0.25rem; }
.list-group-item { position: relative; display: block; padding: 0.5rem 1rem; color: var(--text-color); text-decoration: none; background-color: var(--secondary-bg); border: 1px solid var(--border-color); }
.list-group-item:first-child { border-top-left-radius: inherit; border-top-right-radius: inherit; }
.list-group-item:last-child { border-bottom-right-radius: inherit; border-bottom-left-radius: inherit; }
.list-group-item + .list-group-item { border-top-width: 0; }
.list-group-item.active { z-index: 2; color: #fff; background-color: var(--primary-accent); border-color: var(--primary-accent); }

/* Close Button */
.btn-close { box-sizing: content-box; width: 1em; height: 1em; padding: 0.25em 0.25em; color: var(--text-muted); background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23b0c4de'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e") center/1em auto no-repeat; border: 0; border-radius: 0.25rem; opacity: 0.5; cursor: pointer; }
.btn-close:hover { color: var(--text-color); text-decoration: none; opacity: 0.75; }

/* Placeholders (Skeleton) */
.placeholder { display: inline-block; min-height: 1em; vertical-align: middle; cursor: wait; background-color: var(--tertiary-bg); opacity: 0.5; animation: placeholder-glow 2s ease-in-out infinite; }
@keyframes placeholder-glow { 50% { opacity: 0.2; } }
.placeholder-lg { min-height: 1.2em; }
.placeholder-sm { min-height: 0.8em; }

/* Popovers & Tooltips (Basic CSS-only implementation) */
[data-tooltip] { position: relative; cursor: pointer; }
[data-tooltip]:before { content: attr(data-tooltip); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%); padding: 5px 10px; background-color: var(--tertiary-bg); color: var(--text-color); border-radius: 4px; font-size: 0.875rem; white-space: nowrap; opacity: 0; visibility: hidden; transition: opacity 0.2s; pointer-events: none; border: 1px solid var(--border-color); z-index: 1000; }
[data-tooltip]:hover:before { opacity: 1; visibility: visible; }

/* Carousel (Basic) */
.carousel { position: relative; }
.carousel-inner { position: relative; width: 100%; overflow: hidden; }
.carousel-item { position: relative; display: none; float: left; width: 100%; margin-right: -100%; backface-visibility: hidden; transition: transform 0.6s ease-in-out; }
.carousel-item.active { display: block; }

/* Collapse */
.collapse:not(.show) { display: none; }
.collapsing { height: 0; overflow: hidden; transition: height 0.35s ease; }

/* --- Custom Overrides for Gig Detail & Topbar --- */

/* Ensure inputs inside tables fill the cell and look seamless */
.table td .form-control {
    border: none;
    padding: 2px 0;
    background: transparent;
    height: auto;
    box-shadow: none;
    color: var(--text-color);
}

/* Fix for Flatpickr/Readonly inputs to prevent grey background */
.table td .form-control[readonly], 
.table td .flatpickr-input[readonly] {
    background-color: transparent !important;
    opacity: 1; 
}

.table td .form-control:focus {
    box-shadow: none;
    background: var(--tertiary-bg);
}

/* Improve Topbar Menu Visibility */
.topbar .nav-item .nav-link {
    color: var(--text-muted) !important; 
    font-weight: 600;
}
.topbar .nav-item .nav-link:hover {
    color: var(--primary-accent) !important; 
}
.topbar .nav-item .nav-link i {
    color: var(--text-muted) !important;
}
.topbar .nav-item .nav-link:hover i {
    color: var(--primary-accent) !important;
}