:root {
    --bg: #171512;
    --panel: #24211d;
    --panel2: #332d25;
    --wood: #5d351d;
    --wood2: #3c2114;
    --cream: #e7dfc9;
    --muted: #a99f8d;
    --line: #6f6658;
    --orange: #d8772c;
    --yellow: #d2b05b;
    --red: #b84734;
    --black: #0a0908;
    --white: #f2ead8;
    --green: #6fa16b;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: radial-gradient(
        circle at top,
        #30291f 0,
        #171512 48%,
        #0d0c0b 100%
    );
    color: var(--cream);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.35;
}

a:link, a:visited {color: var(--orange);}

button,
select,
input {
    font: inherit;
}

button,
.file-button {
    border: 1px solid #817768;
    border-radius: 4px;
    background: linear-gradient(
        #494239,
        #28231e
    );
    color: var(--white);
    padding: 0.58rem 0.8rem;
    cursor: pointer;
    box-shadow:
        inset 0 1px rgba(255, 255, 255, 0.12);
}

button:hover,
.file-button:hover {
    filter: brightness(1.15);
}

button.accent {
    border-color: var(--orange);
    color: #fff2e5;
}

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    padding: 0.8rem 1rem;
    background: linear-gradient(
        90deg,
        var(--wood2),
        var(--wood),
        var(--wood2)
    );
    border-bottom: 4px solid #0d0b09;
    box-shadow: 0 4px 20px #0008;
}

h1 {
    margin: 0;
    font-size: 1.25rem;
    letter-spacing: 0.18em;
    color: var(--white);
}

.topbar p {
    margin: 0.18rem 0 0;
    color: #d0b89e;
    font-size: 0.85rem;
}

.transport {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.transport label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.transport input {
    width: 72px;
    background: #111;
    color: #fff;
    border: 1px solid #716657;
    padding: 0.45rem;
}

main {
    max-width: 1600px;
    margin: auto;
    padding: 1rem;
    display: grid;
    grid-template-columns:
        minmax(0, 1.15fr)
        minmax(520px, 0.85fr);
    gap: 1rem;
}

.panel {
    background: linear-gradient(
        145deg,
        #2d2923,
        #1d1b18
    );
    border: 1px solid #655c50;
    box-shadow:
        0 12px 28px #0007,
        inset 0 1px #ffffff10;
}

.brand-strip {
    padding: 0.45rem 1rem;
    background: linear-gradient(
        90deg,
        var(--wood2),
        var(--wood),
        var(--wood2)
    );
    font-weight: bold;
    letter-spacing: 0.22em;
    color: #eac8a6;
    border-bottom: 2px solid #0b0a09;
}

.section {
    padding: 0.85rem;
    border-bottom: 1px solid #554d43;
}

.section:last-child {
    border-bottom: 0;
}

h2 {
    margin: 0 0 0.7rem;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: #d8c6ab;
}

h3 {
    font-size: 0.78rem;
    margin: 0.2rem 0 0.5rem;
    color: var(--muted);
    text-transform: uppercase;
}

.control-grid {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.control-grid.compact {
    gap: 0.55rem;
}

.knob-wrap {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
        "label label"
        "slider out";
    gap: 0.2rem 0.4rem;
    min-width: 112px;
}

.knob-wrap label {
    grid-area: label;
    color: #cbbfae;
    font-size: 0.78rem;
}

.knob-wrap input {
    grid-area: slider;
}

.knob-wrap output {
    grid-area: out;
    align-self: center;
    color: var(--yellow);
    font-size: 0.75rem;
    min-width: 35px;
    text-align: right;
}

input[type="range"] {
    accent-color: var(--orange);
    width: 100%;
}

.toggle {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: #d8cebd;
    font-size: 0.8rem;
    padding: 0.45rem 0;
}

.toggle input {
    accent-color: var(--orange);
}

.osc-row {
    display: grid;
    grid-template-columns:
        58px
        90px
        110px
        minmax(110px, 1fr)
        minmax(110px, 1fr)
        55px;
    gap: 0.6rem;
    align-items: end;
    padding: 0.55rem 0;
    border-top: 1px solid #4c453b;
}

.osc-row:first-of-type {
    border-top: 0;
}

.osc-row > label {
    font-size: 0.75rem;
    color: #bdb2a1;
    display: grid;
    gap: 0.22rem;
}

.osc-row select {
    background: #13110f;
    color: #eee1cc;
    border: 1px solid #655b4e;
    padding: 0.35rem;
}

.envelopes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
}

.envelopes > h2 {
    grid-column: 1 / -1;
}

.env-group {
    border: 1px solid #4f473e;
    padding: 0.6rem;
    background: #17151266;
}

.button-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.keyboard {
    position: relative;
    height: 145px;
    display: flex;
    background: #080706;
    border: 8px solid #0d0b09;
    overflow: hidden;
    user-select: none;
}

.key.white {
    position: relative;
    flex: 1;
    background: linear-gradient(
        #f7f1df,
        #d8cfba
    );
    border-right: 1px solid #8a8174;
    border-radius: 0 0 4px 4px;
}

.key.white.active {
    background: linear-gradient(
        #e5a66e,
        #b96a34
    );
}

.key.black {
    position: absolute;
    top: 0;
    width: 4.8%;
    height: 62%;
    background: linear-gradient(
        #25221f,
        #050505
    );
    border: 1px solid #000;
    border-radius: 0 0 3px 3px;
    z-index: 2;
}

.key.black.active {
    background: linear-gradient(
        #8c5b37,
        #2c1a10
    );
}

.hint {
    margin: 0.5rem 0 0;
    color: var(--muted);
    font-size: 0.76rem;
}

.roll-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    flex-wrap: wrap;
}

.roll-settings {
    display: flex;
    gap: 0.55rem;
    align-items: center;
    flex-wrap: wrap;
}

.roll-settings label {
    font-size: 0.76rem;
    color: #c8bdac;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.roll-settings select {
    background: #111;
    color: #eee;
    border: 1px solid #5f574d;
    padding: 0.3rem;
}

.roll-settings input[type="range"] {
    width: 90px;
}

.roll-settings output {
    color: var(--yellow);
    min-width: 34px;
}

.roll-wrap {
    display: grid;
    grid-template-columns: 54px 1fr;
    max-height: 420px;
    overflow: auto;
    border: 1px solid #4e473e;
    background: #111;
}

.note-labels {
    display: grid;
    background: #201c18;
    position: sticky;
    left: 0;
    z-index: 2;
}

.note-label {
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #39332d;
    color: #a99f8d;
    font-size: 0.68rem;
    height: 22px;
}

.piano-roll {
    display: grid;
    position: relative;
    min-width: 760px;
}

.roll-cell {
    height: 22px;
    border-right: 1px solid #39332d;
    border-bottom: 1px solid #312c27;
    background: #161411;
    cursor: pointer;
}

.roll-cell.beat {
    border-right-color: #6e604f;
}

.roll-cell.active {
    background: linear-gradient(
        180deg,
        #d68b48,
        #8f4e25
    );
    box-shadow:
        inset 0 0 0 1px #f4c48e;
}

.roll-cell.playing {
    outline: 2px solid #f4e0aa;
    outline-offset: -2px;
}

.roll-cell.selected {
    box-shadow:
        inset 0 0 0 2px #fff2c6;
}

.velocity-editor {
    margin-top: 0.6rem;
    padding: 0.5rem;
    background: #151310;
    border: 1px solid #413a33;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.velocity-editor label {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    font-size: 0.8rem;
}

.velocity-editor output {
    color: var(--yellow);
}

#selectionInfo {
    color: var(--muted);
    font-size: 0.78rem;
}

.file-button {
    display: inline-flex;
    align-items: center;
}

.file-button input {
    display: none;
}

footer {
    max-width: 1600px;
    margin: 0 auto 2rem;
    padding: 0 1rem;
    color: #837a6e;
    font-size: 0.75rem;
    text-align: center;
}

/* Keyboard */

.keyboard-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-bottom: 0.7rem;
}

.keyboard-head h2 {
    margin: 0;
}

.midi-status {
    font-size: 0.74rem;
    color: var(--muted);
    padding: 0.25rem 0.45rem;
    border: 1px solid #51493f;
    background: #151310;
    border-radius: 3px;
}

.midi-status.connected {
    color: #cfe4c4;
    border-color: #657b59;
}

.key {
    overflow: visible;
}

.key .key-note {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
    white-space: nowrap;
    font-weight: bold;
}

.key.white .key-note {
    bottom: 8px;
    color: #3b342d;
    font-size: 0.66rem;
}

.key.black .key-note {
    bottom: 6px;
    color: #e8dfcf;
    font-size: 0.57rem;
}

/* Speicherung */

.storage-grid {
    display: grid;
    grid-template-columns:
        minmax(150px, 1fr)
        auto
        auto
        auto;
    gap: 0.5rem;
    align-items: end;
}

.storage-grid > label:not(.file-button) {
    display: grid;
    gap: 0.25rem;
    color: #c8bdac;
    font-size: 0.76rem;
}

.storage-grid select {
    background: #111;
    color: #eee;
    border: 1px solid #5f574d;
    padding: 0.52rem;
}

.storage-grid .file-button {
    justify-content: center;
}

/* Effekte */

.effects-grid {
    display: grid;
    grid-template-columns:
        repeat(3, minmax(0, 1fr));
    gap: 0.65rem;
}

.effect-group {
    border: 1px solid #4f473e;
    padding: 0.65rem;
    background: #17151266;
}

.effect-group h3 {
    margin: 0 0 0.45rem;
}

.effect-group > .toggle {
    padding: 0 0 0.45rem;
}

button.active-toggle {
    border-color: var(--yellow);
    color: #fff1bd;
    box-shadow:
        inset 0 0 0 1px #d2b05b55,
        0 0 10px #d2b05b22;
}

button.recording {
    border-color: var(--red);
    color: #ffe6df;
    background: linear-gradient(
        #6f3228,
        #3c1813
    );
    box-shadow:
        inset 0 0 0 1px #d36a5555,
        0 0 12px #b8473433;
}

/* Model-D-Anleitung */

.manual {
    max-width: 1568px;
    margin: 0 auto 1rem;
}

.manual-inner {
    padding: 1rem;
}

.manual-intro {
    display: grid;
    grid-template-columns:
        minmax(0, 1fr)
        minmax(280px, 420px);
    gap: 1.2rem;
    align-items: end;
    margin-bottom: 1rem;
}

.manual-intro h2 {
    margin-bottom: 0.45rem;
}

.manual-intro p {
    margin: 0;
    color: #c8bdac;
    max-width: 950px;
}

.manual-search {
    display: grid;
    gap: 0.35rem;
    color: #d8c6ab;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.manual-search input {
    width: 100%;
    padding: 0.7rem 0.8rem;
    background: #111;
    color: var(--white);
    border: 1px solid #665c4f;
    border-radius: 3px;
    outline: none;
}

.manual-search input:focus {
    border-color: var(--orange);
    box-shadow:
        0 0 0 2px #d8772c22;
}

.manual-grid {
    display: grid;
    grid-template-columns:
        repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.manual-card {
    padding: 0.85rem 1rem;
    background: #171512aa;
    border: 1px solid #4f473e;
    border-left: 3px solid var(--wood);
}

.manual-card h3 {
    margin: 0 0 0.55rem;
    color: #dfc8aa;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
}

.manual-card p {
    margin: 0.45rem 0 0;
    color: #bfb4a4;
    font-size: 0.86rem;
    line-height: 1.55;
}

.manual-card strong {
    color: #ead8bd;
}

.manual-card[hidden] {
    display: none;
}

.manual-no-results {
    padding: 0.8rem;
    border: 1px solid #5f574d;
    background: #171512;
    color: var(--muted);
}

/* Keyboard Tools */

.keyboard-tools {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.keyboard-tools > label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--muted);
    font-size: 0.74rem;
}

.keyboard-tools select {
    background: #111;
    color: #eee;
    border: 1px solid #5f574d;
    padding: 0.28rem 0.4rem;
    border-radius: 3px;
}

/* Responsive */

@media (max-width: 1100px) {
    main {
        grid-template-columns: 1fr;
    }

    .envelopes {
        grid-template-columns: 1fr;
    }

    .envelopes > h2 {
        grid-column: auto;
    }
}

@media (max-width: 900px) {
    .effects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 800px) {
    .manual-intro,
    .manual-grid {
        grid-template-columns: 1fr;
    }

    .manual {
        margin-left: 1rem;
        margin-right: 1rem;
    }
}

@media (max-width: 720px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .osc-row {
        grid-template-columns: 1fr 1fr;
    }

    .osc-row strong {
        grid-column: 1 / -1;
    }

    .keyboard {
        height: 120px;
    }

    .roll-wrap {
        grid-template-columns: 46px 1fr;
    }

    .storage-grid {
        grid-template-columns: 1fr 1fr;
    }

    .keyboard-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .keyboard-tools {
        justify-content: flex-start;
    }
}