.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto 0 auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}

* {
    box-sizing: border-box;
}

html {
    background: #18211e;
}

body {
    margin: 0;
    background: #18211e;
    color: #f5f1e8;
    font-family: "Segoe UI", sans-serif;
}

.tree-song-shell {
    width: min(1180px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 3rem;
}

.hero {
    max-width: 42rem;
    margin-bottom: 2rem;
}

.hero-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.hero-topline .eyebrow {
    margin-bottom: 0;
}

.utility-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.35rem;
}

.utility-link {
    padding: 0.35rem 0.55rem;
    border: 1px solid transparent;
    border-radius: 0.35rem;
    background: transparent;
    color: #c9d5cd;
    cursor: pointer;
    font: inherit;
    font-size: 0.86rem;
}

.utility-link:hover,
.utility-link:focus-visible {
    border-color: #6f877a;
    background: #24312b;
    color: #f5f1e8;
}

.hero h1,
.workspace h2 {
    margin: 0;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 3.6rem);
    line-height: 1.08;
}

.hero h1:focus {
    outline: none;
}

.hero p:not(.eyebrow),
.hint,
.analysis-panel p {
    color: #c9d5cd;
    line-height: 1.55;
}

.eyebrow {
    margin: 0 0 0.5rem;
    color: #a9dfc1;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.workspace {
    display: grid;
    gap: 1.25rem;
}

.photo-panel,
.analysis-panel {
    padding: 1.25rem;
    border: 1px solid #3b4c44;
    border-radius: 0.75rem;
    background: #0e1412;
}

.photo-picker-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.photo-picker {
    display: inline-flex;
    position: relative;
    overflow: hidden;
    border-radius: 0.4rem;
    background: #a9dfc1;
    color: #10251a;
    cursor: pointer;
    font-weight: 700;
}

.photo-picker span {
    padding: 0.7rem 1rem;
}

.photo-picker input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.secondary-button {
    margin: 0.75rem 0 0;
    padding: 0.65rem 0.9rem;
    border: 1px solid #6f877a;
    border-radius: 0.4rem;
    background: transparent;
    color: #dce9e0;
    cursor: pointer;
    font: inherit;
}

.secondary-button:hover,
.secondary-button:focus-visible {
    border-color: #a9dfc1;
    background: #24312b;
}

.canvas-wrap {
    position: relative;
    display: grid;
    min-height: 18rem;
    margin-top: 1rem;
    place-items: center;
    overflow: hidden;
    border: 1px solid #3b4c44;
    border-radius: 0.5rem;
    background: #111915;
}

.tree-canvas {
    display: block;
    max-width: 100%;
    max-height: 65vh;
    cursor: crosshair;
    touch-action: none;
    will-change: transform;
    z-index: 1;
}

.canvas-navigation {
    position: absolute;
    top: 0.65rem;
    left: 0.65rem;
    z-index: 2;
    display: flex;
    gap: 0.35rem;
}

.canvas-navigation-hint {
    position: absolute;
    right: 0.65rem;
    bottom: 0.5rem;
    z-index: 2;
    margin: 0;
    padding: 0.25rem 0.45rem;
    border-radius: 0.3rem;
    background: rgba(17, 25, 21, 0.82);
    color: #b6c7bd;
    font-size: 0.75rem;
    pointer-events: none;
}

.canvas-message {
    grid-area: 1 / 1;
    padding: 1rem;
    color: #b6c7bd;
    text-align: center;
}

.analysis-results {
    margin: 1rem 0;
}

.analysis-results div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.65rem 0;
    border-bottom: 1px solid #3b4c44;
}

.analysis-results dt {
    color: #c9d5cd;
}

.analysis-results dd {
    margin: 0;
    font-weight: 700;
}

.control-group {
    display: grid;
    gap: 0.4rem;
    margin-top: 1.25rem;
}

.control-group label {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    color: #c9d5cd;
    font-size: 0.92rem;
}

.control-group input {
    width: 100%;
    accent-color: #a9dfc1;
}

.reset-button {
    margin: 1.25rem 0 0;
}

.sound-controls {
    display: grid;
    gap: 0.8rem;
    margin-top: 1.5rem;
    min-width: 0;
    padding-top: 1rem;
    border-top: 1px solid #3b4c44;
}

.sound-controls h3 {
    margin: 0;
    font-size: 1rem;
}

.sound-help {
    margin: -0.25rem 0 0;
    font-size: 0.86rem;
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.small-button {
    padding: 0.35rem 0.6rem;
    border: 1px solid #6f877a;
    border-radius: 0.35rem;
    background: #18211e;
    color: #c9d5cd;
    cursor: pointer;
    font: inherit;
    font-size: 0.82rem;
}

.small-button:hover,
.small-button:focus-visible {
    border-color: #a9dfc1;
    color: #f5f1e8;
}

.sound-control {
    display: grid;
    gap: 0.35rem;
}

.strategy-sound-control {
    display: grid;
    gap: 0.45rem;
    min-width: 0;
    margin-top: 0.35rem;
    padding: 0.8rem 0.7rem 0.7rem 0.85rem;
    border: 1px solid #3b4c44;
    border-left: 0.35rem solid #3b4c44;
    border-radius: 0.45rem;
    background: #151c19;
    transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.strategy-sound-control.strategy-enabled {
    border-color: #3d9e9b;
    border-left-color: #46d2cf;
    background: #1a2b29;
    box-shadow: inset 0 0 0 1px rgba(70, 210, 207, 0.12);
}

.strategy-sound-control.strategy-disabled {
    opacity: 0.82;
}

.strategy-sound-heading,
.strategy-sound-actions,
.sound-setting-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    min-width: 0;
}

.strategy-sound-heading {
    padding-bottom: 0.35rem;
    border-bottom: 1px solid #3b4c44;
}

.strategy-sound-heading label,
.sound-option {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
    color: #c9d5cd;
    font-size: 0.9rem;
}

.strategy-sound-heading label {
    overflow-wrap: anywhere;
}

.strategy-toggle {
    color: #f5f1e8 !important;
    font-weight: 700;
}

.strategy-checkbox {
    width: 1.15rem;
    height: 1.15rem;
    accent-color: #46d2cf;
}

.strategy-disabled .strategy-checkbox {
    accent-color: #7a8780;
}

.strategy-level {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    white-space: nowrap;
}

.strategy-status {
    color: #8ee8dc;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.strategy-disabled .strategy-status {
    color: #9ca9a1;
}

.sound-option input[type="checkbox"] {
    accent-color: #89968e;
}

.strategy-sound-actions select,
.strategy-sound-settings select {
    min-width: 0;
    flex: 1;
    padding: 0.35rem;
    border: 1px solid #6f877a;
    border-radius: 0.35rem;
    background: #0e1412;
    color: #f5f1e8;
    font: inherit;
    font-size: 0.82rem;
}

.strategy-sound-control > input[type="range"],
.strategy-sound-settings input[type="range"] {
    width: 100%;
    min-width: 0;
    accent-color: #a9dfc1;
}

.strategy-sound-source {
    display: grid;
    gap: 0.45rem;
    min-width: 0;
    padding-top: 0.45rem;
    border-top: 1px solid #2f3d36;
}

.strategy-sound-source input[type="number"] {
    width: 100%;
    box-sizing: border-box;
    padding: 0.35rem;
    border: 1px solid #6f877a;
    border-radius: 0.35rem;
    background: #0e1412;
    color: #f5f1e8;
    font: inherit;
    font-size: 0.82rem;
}

.sample-source-name {
    margin: 0;
    color: #c9d5cd;
    font-size: 0.78rem;
    overflow-wrap: anywhere;
}

.sound-setting-label {
    color: #c9d5cd;
    font-size: 0.82rem;
}

.strategy-sound-settings {
    display: grid;
    gap: 0.45rem;
    margin-top: 0.25rem;
    min-width: 0;
    padding-top: 0.5rem;
    border-top: 1px solid #3b4c44;
    color: #c9d5cd;
}

.strategy-sound-settings summary {
    cursor: pointer;
    color: #a9dfc1;
    font-size: 0.82rem;
    font-weight: 700;
}

.strategy-sound-settings:not([open]) {
    display: block;
}

.strategy-sound-settings:not([open]) summary {
    margin-bottom: 0;
}

.shared-tempo-control {
    margin-top: 0.35rem;
    padding-top: 0.8rem;
    border-top: 1px solid #3b4c44;
}

.sound-control label {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    color: #c9d5cd;
    font-size: 0.9rem;
}

.sound-control label span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.sound-control input[type="range"] {
    width: 100%;
    accent-color: #a9dfc1;
}

.playback-toolbar {
    position: sticky;
    top: 0.75rem;
    z-index: 10;
    display: grid;
    gap: 0.4rem;
    margin: 0 0 1.25rem;
    padding: 0.75rem 1rem;
    border: 1px solid #6f877a;
    border-radius: 0.5rem;
    background: #0e1412;
    box-shadow: 0 0.35rem 1rem rgba(0, 0, 0, 0.3);
}

.playback-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0;
}

.playback-toolbar > p {
    margin: 0;
    font-size: 0.86rem;
}

.primary-button {
    padding: 0.7rem 1rem;
    border: 1px solid #a9dfc1;
    border-radius: 0.4rem;
    background: #a9dfc1;
    color: #10251a;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

.playback-status {
    color: #a9dfc1 !important;
}

button:disabled {
    cursor: wait;
    opacity: 0.65;
}

.error-message {
    color: #ffc3c3 !important;
}

.progress-dialog-backdrop {
    position: fixed;
    z-index: 100;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: rgba(7, 12, 10, 0.78);
}

.progress-dialog {
    display: grid;
    width: min(100%, 26rem);
    gap: 0.75rem;
    padding: 1.5rem;
    border: 1px solid #6f877a;
    border-radius: 0.75rem;
    background: #0e1412;
    box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.45);
    text-align: center;
}

.progress-dialog h2,
.progress-dialog p {
    margin: 0;
}

.progress-dialog h2 {
    font-size: 1.2rem;
}

.progress-dialog p {
    color: #c9d5cd;
    line-height: 1.45;
}

.progress-dialog-help {
    font-size: 0.84rem;
}

.progress-dialog-spinner {
    width: 2.25rem;
    height: 2.25rem;
    margin: 0 auto;
    border: 0.25rem solid #3b4c44;
    border-top-color: #a9dfc1;
    border-radius: 50%;
    animation: progress-dialog-spin 0.85s linear infinite;
}

.progress-dialog-bar {
    width: 100%;
    height: 0.55rem;
    accent-color: #a9dfc1;
}

.progress-dialog-cancel {
    margin: 0 auto;
}

.info-dialog-backdrop {
    position: fixed;
    z-index: 90;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: rgba(7, 12, 10, 0.78);
}

.info-dialog {
    width: min(100%, 38rem);
    max-height: min(42rem, calc(100vh - 2rem));
    overflow-y: auto;
    padding: 1.5rem;
    border: 1px solid #6f877a;
    border-radius: 0.75rem;
    background: #0e1412;
    box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.45);
}

.info-dialog-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.info-dialog-heading h2,
.info-dialog-content h3,
.info-dialog-content p {
    margin: 0;
}

.info-dialog-heading h2 {
    font-size: 1.35rem;
}

.dialog-close {
    min-width: 2rem;
    min-height: 2rem;
    padding: 0.1rem 0.45rem;
    border: 1px solid #6f877a;
    border-radius: 0.35rem;
    background: transparent;
    color: #c9d5cd;
    cursor: pointer;
    font: inherit;
    font-size: 1.25rem;
    line-height: 1;
}

.dialog-close:hover,
.dialog-close:focus-visible {
    border-color: #a9dfc1;
    background: #24312b;
    color: #f5f1e8;
}

.info-dialog-content {
    display: grid;
    gap: 0.8rem;
    color: #c9d5cd;
    line-height: 1.55;
}

.info-dialog-content h3 {
    margin-top: 0.4rem;
    color: #f5f1e8;
    font-size: 1rem;
}

.info-dialog-content a {
    color: #a9dfc1;
}

.info-dialog-content a:hover,
.info-dialog-content a:focus-visible {
    color: #f5f1e8;
}

.about-product-name {
    color: #f5f1e8;
    font-size: 1.2rem;
    font-weight: 700;
}

.info-dialog-note {
    padding-top: 0.75rem;
    border-top: 1px solid #3b4c44;
    font-size: 0.88rem;
}

@keyframes progress-dialog-spin {
    to {
        transform: rotate(360deg);
    }
}

@media (min-width: 850px) {
    .workspace {
        grid-template-columns: minmax(0, 1fr) 18rem;
        align-items: start;
    }
}

@media (max-width: 520px) {
    .tree-song-shell {
        width: min(100% - 1rem, 1180px);
        padding-top: 1rem;
    }

    .hero-topline {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.35rem;
    }

    .utility-links {
        justify-content: flex-start;
    }
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}