* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Space Mono', monospace;
    background-color: #0b0c0e;
    background-image: radial-gradient(#232630 1.5px, transparent 1.5px);
    background-size: 24px 24px;
    color: #e2e8f0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 0.5rem 0.75rem;
    overflow-x: hidden;
}

input,
button,
select {
    font-family: inherit;
}

/* Wide Brutalist Container */
.app-container {
    background-color: #12141a;
    border: 3px solid #ffffff;
    box-shadow: 8px 8px 0px #d4ff00;
    border-radius: 0px;
    padding: 1.1rem 1.6rem;
    max-width: min(1680px, 98vw);
    width: 100%;
    text-align: center;
    position: relative;
    margin: auto;
}

/* Fullscreen Mode */
:fullscreen .app-container {
    max-width: 99vw;
    min-height: 98vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: none;
    padding: 1.25rem 2rem;
}

/* Header */
header {
    margin-bottom: 0.75rem;
    border-bottom: 2px solid #232733;
    padding-bottom: 0.4rem;
}

header h1 {
    font-family: 'Syne', sans-serif;
    font-size: 1.85rem;
    font-weight: 900;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: -0.5px;
    margin-bottom: 0.15rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

header h1::before {
    content: "■";
    color: #d4ff00;
    font-size: 1.25rem;
}

header p {
    font-family: 'Space Mono', monospace;
    color: #8b92a4;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Industrial Top Bar */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem 1rem;
    background: #181b22;
    border: 2px solid #2e3444;
    box-shadow: 3px 3px 0px #000000;
    border-radius: 0px;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.instrument-selector-group {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 700;
}

.instrument-selector-group label {
    color: #d4ff00;
    letter-spacing: 0.5px;
}

.sampler-status {
    font-size: 0.7rem;
    font-weight: 700;
    color: #ffd166;
    background: #0b0c0e;
    padding: 2px 6px;
    border: 1px solid #333a4a;
    letter-spacing: 0.5px;
    transition: all 0.2s ease;
}

.sampler-status.ready {
    color: #000000;
    background: #06d6a0;
    border-color: #06d6a0;
}

/* Status Pill & Fullscreen Button */
.midi-status-pill,
.fullscreen-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    background: #0b0c0e;
    border: 2px solid #ffffff;
    box-shadow: 3px 3px 0px #000000;
    font-size: 0.72rem;
    font-weight: 700;
    color: #ffffff;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.15s ease;
    user-select: none;
    height: 36px;
}

.midi-status-pill:hover,
.fullscreen-btn:hover {
    background: #d4ff00;
    color: #000000;
    border-color: #d4ff00;
    transform: translate(-1px, -1px);
    box-shadow: 4px 4px 0px #ffffff;
}

.midi-status-pill:active,
.fullscreen-btn:active {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px #000000;
}

.fullscreen-btn.active-fullscreen {
    background: #d4ff00;
    color: #000000;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 0px;
    background-color: #888;
    display: inline-block;
    transition: all 0.2s;
}

.status-dot.listening {
    background-color: #ffb703;
    box-shadow: 0 0 6px #ffb703;
}

.status-dot.connected {
    background-color: #06d6a0;
    box-shadow: 0 0 8px #06d6a0;
}

.status-dot.flash {
    background-color: #d4ff00 !important;
    box-shadow: 0 0 12px #d4ff00 !important;
    transform: scale(1.6);
}

.status-dot.disabled {
    background-color: #ef476f;
}

/* Chord Builder Controls */
.controls.chord-builder {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-bottom: 0.65rem;
}

.select-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
}

.select-wrapper label {
    font-size: 0.72rem;
    color: #d4ff00;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
}

.control-select,
.chord-select {
    padding: 0.5rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 0px;
    border: 2px solid #ffffff;
    background-color: #0b0c0e;
    color: #ffffff;
    box-shadow: 3px 3px 0px #000000;
    outline: none;
    cursor: pointer;
    height: 42px;
    transition: all 0.15s ease;
}

.chord-select {
    min-width: 90px;
}

.type-wrapper .chord-select {
    min-width: 200px;
}

.control-select:focus,
.chord-select:focus {
    border-color: #d4ff00;
    box-shadow: 3px 3px 0px #d4ff00;
}

#preview-btn {
    padding: 0 1.5rem;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: 'Syne', sans-serif;
    font-size: 0.95rem;
    font-weight: 900;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-radius: 0px;
    border: 2px solid #000000;
    background: #d4ff00;
    color: #000000;
    cursor: pointer;
    box-shadow: 4px 4px 0px #ffffff;
    transition: all 0.15s ease;
}

#preview-btn:hover {
    background: #e6ff33;
    transform: translate(-1px, -1px);
    box-shadow: 5px 5px 0px #ffffff;
}

#preview-btn:active {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px #ffffff;
}

/* Chord Info Readout */
.chord-info {
    font-family: 'Space Mono', monospace;
    color: #d4ff00;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    background: #0b0c0e;
    border: 2px solid #232733;
    box-shadow: 3px 3px 0px #000000;
    padding: 0.5rem 1rem;
    margin-bottom: 0.65rem;
    min-height: 2.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-msg {
    color: #ff3366;
    font-weight: 700;
    font-size: 0.75rem;
    min-height: 0.9rem;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

/* Stretched Full-Width Piano */
.piano-container {
    overflow-x: auto;
    padding: 5px;
    margin-bottom: 0.75rem;
    background: #0b0c0e;
    border: 3px solid #ffffff;
    box-shadow: 5px 5px 0px #000000;
    scrollbar-width: thin;
    scrollbar-color: #d4ff00 #0b0c0e;
    width: 100%;
    display: flex;
    justify-content: center;
}

.piano-container::-webkit-scrollbar {
    height: 6px;
}

.piano-container::-webkit-scrollbar-track {
    background: #0b0c0e;
}

.piano-container::-webkit-scrollbar-thumb {
    background: #d4ff00;
    border: 1px solid #000000;
}

.piano {
    --white-key-width: calc(100% / 36);
    --black-key-width: calc(var(--white-key-width) * 0.64);
    display: inline-flex;
    height: 125px;
    position: relative;
    background-color: #000000;
    padding: 0px;
    border: 2px solid #000000;
    width: 100%;
    min-width: 900px;
}

.key {
    position: relative;
    cursor: pointer;
    border-radius: 0px;
    transition: background-color 0.05s, transform 0.05s;
    user-select: none;
}

.key.white {
    width: var(--white-key-width);
    height: 100%;
    background-color: #ffffff;
    border: 2px solid #000000;
    z-index: 1;
    box-shadow: inset 0 -4px 0px #d4d4d8;
}

.key.white:hover {
    background-color: #f4f4f5;
}

.key.white.active {
    background-color: #d4ff00 !important;
    border-color: #000000 !important;
    box-shadow: inset 0 -2px 0px #a8cc00 !important;
    transform: translateY(2px);
}

.key.black {
    width: var(--black-key-width);
    height: 60%;
    background-color: #181a20;
    border: 2px solid #000000;
    z-index: 2;
    margin-left: calc(-0.5 * var(--black-key-width));
    margin-right: calc(-0.5 * var(--black-key-width));
    box-shadow: inset 0 -3px 0px #2a2e39, 2px 2px 0px rgba(0, 0, 0, 0.9);
}

.key.black:hover {
    background-color: #272a34;
}

.key.black.active {
    background-color: #ff3366 !important;
    border-color: #000000 !important;
    box-shadow: inset 0 -1px 0px #cc0033 !important;
    transform: translateY(2px);
    z-index: 3;
}

/* Compact Horizontal Synth Controls */
.adsr-controls {
    margin-top: 0.5rem;
    padding: 0.75rem 1rem;
    background: #181b22;
    border: 2px solid #2e3444;
    box-shadow: 3px 3px 0px #000000;
    text-align: left;
}

.adsr-controls h3 {
    font-family: 'Syne', sans-serif;
    font-size: 0.9rem;
    font-weight: 800;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.adsr-controls h3::before,
.adsr-controls h3::after {
    content: "///";
    color: #d4ff00;
    font-size: 0.75rem;
}

.synth-params {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.adsr-sliders {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.slider-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 95px;
}

.slider-group label {
    font-size: 0.68rem;
    font-weight: 700;
    color: #8b92a4;
    margin-bottom: 0.2rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.slider-group input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    margin-bottom: 0.25rem;
    background: transparent;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 14px;
    width: 14px;
    border-radius: 0px;
    background: #d4ff00;
    border: 2px solid #000000;
    cursor: pointer;
    margin-top: -5px;
    box-shadow: 1px 1px 0px #000000;
}

.slider-group input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 5px;
    cursor: pointer;
    background: #0b0c0e;
    border: 1px solid #ffffff;
    border-radius: 0px;
}

.slider-val {
    font-size: 0.72rem;
    font-weight: 700;
    color: #d4ff00;
    background: #0b0c0e;
    border: 1px solid #333a4a;
    padding: 1px 5px;
    border-radius: 0px;
    letter-spacing: 0.5px;
}