:root,
[data-bs-theme="light"],
[data-bs-theme="dark"] {
    --ins-primary: #0f9f92;
    --ins-primary-rgb: 15, 159, 146;
    --ins-link-color: #0f8f84;
    --ins-link-color-rgb: 15, 143, 132;
    --ins-link-hover-color: #0b746c;
    --ins-link-hover-color-rgb: 11, 116, 108;
    --lc-stage-bg: #090d16;
    --lc-stage-grid: rgba(148, 163, 184, 0.11);
    --lc-teal-soft: rgba(15, 159, 146, 0.14);
}

[data-bs-theme="dark"] {
    --ins-primary-text-emphasis: #68dfd3;
    --ins-primary-bg-subtle: rgba(15, 159, 146, 0.2);
    --ins-primary-border-subtle: rgba(52, 211, 193, 0.42);
}

.btn-primary {
    --ins-btn-bg: #0f9f92;
    --ins-btn-border-color: #0f9f92;
    --ins-btn-hover-bg: #0b847a;
    --ins-btn-hover-border-color: #0b847a;
    --ins-btn-active-bg: #08736a;
    --ins-btn-active-border-color: #08736a;
}

.text-bg-primary,
.bg-primary {
    background-color: #0f9f92 !important;
}

.text-primary {
    color: #0f8f84 !important;
}

.form-control:focus,
.form-select:focus,
.form-check-input:focus {
    border-color: rgba(15, 159, 146, 0.65);
    box-shadow: 0 0 0 0.2rem rgba(15, 159, 146, 0.18);
}

.lc-brand-mark {
    display: inline-grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    color: #fff;
    background: linear-gradient(145deg, #13b8a8, #0b766e);
    border-radius: 0.65rem;
    box-shadow: 0 0.35rem 1rem rgba(15, 159, 146, 0.28);
}

.lc-auth-shell {
    min-height: 100vh;
    background:
        radial-gradient(circle at 15% 20%, rgba(15, 159, 146, 0.17), transparent 30rem),
        radial-gradient(circle at 85% 80%, rgba(59, 130, 246, 0.1), transparent 26rem),
        var(--ins-body-bg);
}

.lc-code-input {
    min-height: 3.5rem;
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: 0.4rem;
    text-align: center;
    text-transform: uppercase;
}

.lc-student-topbar {
    position: sticky;
    top: 0;
    z-index: 1020;
    border-bottom: 1px solid var(--ins-border-color);
    background: color-mix(in srgb, var(--ins-body-bg) 92%, transparent);
    backdrop-filter: blur(12px);
}

.lc-stage-preview {
    position: relative;
    min-height: clamp(15rem, 34vh, 24rem);
    overflow: hidden;
    isolation: isolate;
    background:
        linear-gradient(var(--lc-stage-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--lc-stage-grid) 1px, transparent 1px),
        radial-gradient(ellipse at 50% 115%, #243147 0%, #111827 42%, var(--lc-stage-bg) 75%);
    background-size: 42px 42px, 42px 42px, auto;
    border-radius: var(--ins-border-radius-lg);
}

.lc-stage-preview::after {
    position: absolute;
    right: 4%;
    bottom: 8%;
    left: 4%;
    height: 18%;
    content: "";
    background: linear-gradient(180deg, #1f2937, #0b101a);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50% 50% 0.8rem 0.8rem;
    transform: perspective(420px) rotateX(62deg);
}

.lc-fixture-layer {
    position: absolute;
    inset: 8% 7% 23%;
    z-index: 2;
}

.lc-fixture {
    --fixture-color: #19c5b4;
    --fixture-level: 0.75;
    position: absolute;
    top: calc(var(--fixture-y) * 100%);
    left: calc(var(--fixture-x) * 100%);
    width: clamp(1.2rem, 3.5vw, 2.35rem);
    padding: 0;
    aspect-ratio: 1;
    background: #171c27;
    border: 2px solid #30394a;
    border-radius: 50%;
    box-shadow: 0 0 0.5rem rgba(0, 0, 0, 0.7);
    transform: translate(-50%, -50%);
}

.lc-fixture:hover,
.lc-fixture:focus-visible,
.lc-fixture.is-selected {
    z-index: 4;
    border-color: #5eead4;
    outline: 3px solid rgba(45, 212, 191, 0.3);
    outline-offset: 2px;
}

.lc-fixture-label {
    position: absolute;
    top: calc(100% + 0.2rem);
    left: 50%;
    color: #d7e1ec;
    font-size: clamp(0.48rem, 1vw, 0.65rem);
    font-weight: 700;
    line-height: 1;
    text-shadow: 0 1px 3px #000;
    white-space: nowrap;
    transform: translateX(-50%);
}

.lc-fixture::before {
    position: absolute;
    inset: 19%;
    content: "";
    background: color-mix(in srgb, var(--fixture-color) calc(var(--fixture-level) * 100%), #131722);
    border-radius: 50%;
    box-shadow:
        0 0 calc(1.2rem * var(--fixture-level)) var(--fixture-color),
        0 0 calc(3.5rem * var(--fixture-level)) color-mix(in srgb, var(--fixture-color) 55%, transparent);
}

.lc-fixture::after {
    position: absolute;
    top: 86%;
    left: 50%;
    width: clamp(2.5rem, 10vw, 6rem);
    height: clamp(8rem, 25vh, 15rem);
    content: "";
    pointer-events: none;
    opacity: calc(var(--fixture-level) * 0.35);
    background: linear-gradient(180deg, color-mix(in srgb, var(--fixture-color) 70%, transparent), transparent 84%);
    clip-path: polygon(41% 0, 59% 0, 100% 100%, 0 100%);
    transform: translateX(-50%);
    filter: blur(4px);
}

.lc-stage-caption {
    position: absolute;
    right: 1rem;
    bottom: 0.75rem;
    left: 1rem;
    z-index: 3;
    display: flex;
    justify-content: space-between;
    color: #d7e1ec;
    font-size: 0.75rem;
}

.lc-action-palette {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.lc-action-palette .btn {
    cursor: grab;
}

.lc-timeline-scroll {
    overflow-x: auto;
    overscroll-behavior-x: contain;
    border: 1px solid var(--ins-border-color);
    border-radius: var(--ins-border-radius-lg);
}

.lc-timeline {
    --timeline-width: 1200px;
    position: relative;
    width: max(100%, var(--timeline-width));
    min-height: 11rem;
    background:
        linear-gradient(90deg, rgba(var(--ins-primary-rgb), 0.08) 1px, transparent 1px),
        var(--ins-secondary-bg);
    background-size: 5% 100%, auto;
}

.lc-timeline-ruler {
    position: relative;
    height: 2.25rem;
    border-bottom: 1px solid var(--ins-border-color);
    color: var(--ins-secondary-color);
    font-size: 0.7rem;
}

.lc-ruler-label {
    position: absolute;
    top: 0.55rem;
    transform: translateX(-50%);
}

.lc-event-layer {
    position: relative;
    min-height: 8.75rem;
}

.lc-event-block {
    position: absolute;
    top: calc(0.55rem + var(--event-row, 0) * 2.65rem);
    left: var(--event-left);
    width: max(3.5rem, var(--event-width));
    min-height: 2.15rem;
    overflow: hidden;
    color: #eafffc;
    text-align: left;
    white-space: nowrap;
    background: linear-gradient(135deg, #0f9f92, #08746c);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.45rem;
    box-shadow: 0 0.25rem 0.7rem rgba(15, 159, 146, 0.2);
}

.lc-event-block.is-selected {
    outline: 3px solid rgba(45, 212, 191, 0.35);
    outline-offset: 2px;
}

.lc-playhead {
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--playhead-left, 0%);
    z-index: 5;
    width: 2px;
    pointer-events: none;
    background: #ef4444;
    box-shadow: 0 0 0.5rem rgba(239, 68, 68, 0.55);
}

.lc-playhead::before {
    position: absolute;
    top: 0;
    left: -0.28rem;
    content: "";
    border-top: 0.5rem solid #ef4444;
    border-right: 0.35rem solid transparent;
    border-left: 0.35rem solid transparent;
}

.lc-status-dot {
    display: inline-block;
    width: 0.55rem;
    height: 0.55rem;
    margin-right: 0.35rem;
    vertical-align: 0.04rem;
    background: var(--ins-secondary-color);
    border-radius: 50%;
}

.lc-status-dot.is-online {
    background: var(--ins-success);
    box-shadow: 0 0 0 0.2rem rgba(var(--ins-success-rgb), 0.14);
}

.lc-status-dot.is-warning {
    background: var(--ins-warning);
}

.lc-page-heading {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.lc-empty-state {
    padding: 2.5rem 1.25rem;
    text-align: center;
}

.lc-code-badge {
    letter-spacing: 0.18rem;
}

.lc-candidate-card.is-selected {
    border-color: var(--ins-primary);
    box-shadow: 0 0 0 0.2rem var(--lc-teal-soft);
}

.lc-live-safety {
    border-left: 4px solid var(--ins-info);
}

.lc-compact-badge {
    display: inline-flex;
    align-items: center;
    align-self: center;
    min-height: 1.55rem;
    padding: 0.3rem 0.55rem;
    line-height: 1;
}

.lc-admin-timeline {
    min-height: 13.5rem;
    cursor: crosshair;
}

.lc-admin-timeline .lc-event-layer {
    min-height: 11.25rem;
}

.lc-admin-event-block {
    display: block;
    padding: 0.45rem 0.55rem;
    cursor: inherit;
    line-height: 1.15;
}

.lc-candidate-card .badge {
    align-self: flex-start;
    min-height: 1.35rem;
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
    line-height: 1;
}

.content-page.content-spacing-tight > .container-fluid {
    padding-right: 0.75rem !important;
    padding-left: 0.75rem !important;
}

.content-page.content-spacing-tight > .footer {
    margin-right: -0.3125rem;
    margin-left: -0.3125rem;
}

@media (max-width: 575.98px) {
    .lc-auth-shell .container {
        padding-right: 0.75rem;
        padding-left: 0.75rem;
    }

    .lc-student-topbar .btn .lc-button-label {
        display: none;
    }

    .lc-stage-preview {
        min-height: 16rem;
    }

    .lc-action-palette {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .lc-action-palette .btn {
        width: 100%;
    }

    .lc-page-heading > .btn,
    .lc-page-heading > .btn-group {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .lc-fixture::before,
    .lc-fixture::after,
    .lc-playhead {
        transition: none !important;
    }
}