/* ==========================================
   MATRIX ROW STYLES
   Pastel Vintage Hardware Palette
   ========================================== */

/* Major Row — Beige / Amber Pastel */
.row-maj {
    background-color: #fef3c7;
    border-color: #d1a566;
    color: #451a03;
}
.row-maj:hover {
    background-color: #fde68a;
}

/* Minor Row — Sky Blue Pastel */
.row-min {
    background-color: #e0f2fe;
    border-color: #79a8c7;
    color: #0c4a6e;
}
.row-min:hover {
    background-color: #bae6fd;
}

/* Dominant 7th Row — Rose / Pink Pastel */
.row-7 {
    background-color: #ffe4e6;
    border-color: #c98888;
    color: #881337;
}
.row-7:hover {
    background-color: #fecdd3;
}

/* Major 7th Row — Emerald / Mint Pastel */
.row-maj7 {
    background-color: #d1fae5;
    border-color: #7fba8f;
    color: #064e3b;
}
.row-maj7:hover {
    background-color: #a7f3d0;
}

/* Minor 7th Row — Purple / Lilac Pastel */
.row-m7 {
    background-color: #f3e8ff;
    border-color: #a485b8;
    color: #581c87;
}
.row-m7:hover {
    background-color: #e9d5ff;
}

/* Diminished Row — Sage / Soft Olive Pastel */
.row-dim {
    background-color: #ecf3e6;
    border-color: #9fb78e;
    color: #2a401c;
}
.row-dim:hover {
    background-color: #d6e7c7;
}

/* Diminished 7th Row — Dusty Blue-Gray Pastel */
.row-dim7 {
    background-color: #e8eef3;
    border-color: #91a4b8;
    color: #213547;
}
.row-dim7:hover {
    background-color: #d2e0ee;
}


/* ==========================================
   COMMON MATRIX BUTTON
   Vintage Hardware / Physical Button Look
   ========================================== */

.matrix-btn {
    position: relative;
    width: 42px;
    height: 42px;
    min-width: 42px;
    min-height: 42px;
    border-width: 2px;
    border-style: solid;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 4px;
    flex-shrink: 0;
    box-shadow: 
        0 4px 0 rgba(0, 0, 0, 0.25), 
        0 5px 6px rgba(0, 0, 0, 0.20);
    outline: none;
    transition: transform 0.05s ease, box-shadow 0.05s ease, filter 0.1s ease;
}

.matrix-btn .btn-led {
    position: absolute;
    bottom: 3px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 3px;
    border-radius: 1px;
    background-color: rgba(0, 0, 0, 0.18);
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

/* Active State */
.matrix-btn.active {
    transform: translateY(3px);
    box-shadow: 
        0 1px 0 rgba(0, 0, 0, 0.25), 
        inset 0 2px 4px rgba(0, 0, 0, 0.20);
    border-color: #334155 !important;
}

.matrix-btn.active .btn-led {
    background-color: #22c55e;
    box-shadow: 0 0 6px #22c55e;
}

/* Progression Highlights */
.matrix-btn.highlight-main {
    border-color: #f59e0b !important;
    box-shadow: 
        0 0 0 2px #f59e0b, 
        0 0 8px rgba(245, 158, 11, 0.6);
    animation: pulseHighlightMain 1.5s infinite alternate;
}

.matrix-btn.highlight-sub {
    border: 2px dashed #3b82f6 !important;
    box-shadow: 
        0 0 0 1px rgba(59, 130, 246, 0.35), 
        0 0 7px rgba(59, 130, 246, 0.45);
    animation: pulseHighlightSub 1.5s infinite alternate;
}

@keyframes pulseHighlightMain {
    0% { box-shadow: 0 0 0 2px #f59e0b, 0 0 4px rgba(245, 158, 11, 0.4); }
    100% { box-shadow: 0 0 0 3px #f59e0b, 0 0 12px rgba(245, 158, 11, 0.8); }
}

@keyframes pulseHighlightSub {
    0% { box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.35), 0 0 4px rgba(59, 130, 246, 0.35); }
    100% { box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.55), 0 0 10px rgba(59, 130, 246, 0.65); }
}


/* ==========================================
   VERTICAL SLIDERS (ADSR & MASTER VOL)
   ========================================== */

.v-range {
    writing-mode: vertical-lr;
    direction: rtl;
    width: 0.5rem;
    height: 80px;
    margin: 0;
    padding: 0;
    cursor: pointer;
    accent-color: #78350f;
}

.v-range-master {
    writing-mode: vertical-lr;
    direction: rtl;
    width: 0.65rem;
    height: 220px;
    margin: 0;
    padding: 0;
    cursor: pointer;
    accent-color: #78350f;
}

.v-range:focus,
.v-range-master:focus {
    outline: none;
}

.vertical-slider-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 110px;
}

.vertical-slider-wrapper-master {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}


/* ==========================================
   PRESET BUTTONS & MONITOR CRT
   ========================================== */

.preset-btn {
    font-size: 8px;
    font-weight: 700;
    padding: 2px 1px;
    border-radius: 4px;
    border: 1px solid #c2b8a3;
    background-color: #fffbeb;
    color: #1e293b;
    cursor: pointer;
    transition: all 0.15s ease;
}

.preset-btn:hover {
    background-color: #fde68a;
}

.preset-btn.active-preset {
    background-color: #d4af37;
    color: #ffffff;
    border-color: #b48f27;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Monitor CRT dell'ADSR Canvas */
.crt-container {
    background-color: #020803;
    border: 2px solid #a3b899;
    box-shadow: inset 0 0 10px rgba(0, 255, 102, 0.2);
}