:root {
    /* Material Light */
    --md-bg: #FAFAFA;
    --md-surface: #FFFFFF;
    --md-on: #1F1F1F;
    --md-muted: #5f6368;
    --md-primary: #1E88E5;
    --md-secondary: #8E24AA;
    --ring: rgba(30, 136, 229, .25);

    /* Ступени по качеству трезвучия */
    --deg-major: #1B5E20;
    --deg-minor: #0D47A1;
    --deg-dim: #B71C1C;
    --deg-aug: #E65100;
    --char: #FFC107;

    --pill-bg: #F1F3F4;
    --pill-on: #202124;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    min-height: 100svh;
    background: var(--md-bg);
    color: var(--md-on);
    font: 16px/1.35 system-ui, Segoe UI, Roboto, Inter, Arial;
}

.main-container,
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.toolbar {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ===== ЧИПЫ-РАДИО ===== */
.chipbar {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* ноты-тоники в одну строку */
.chipbar.nowrap {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
}

/* лады с переносом */
.chipbar.wrap {
    flex-wrap: wrap;
}

.chip-radio {
    position: relative;
    display: inline-block;
}

.chip-radio input {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--md-surface);
    border: 1px solid rgba(127, 127, 127, .25);
    color: var(--md-on);
    cursor: pointer;
    user-select: none;
    transition: box-shadow .15s, background .15s, border-color .15s;
}

.chip-radio input:checked + .chip {
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px var(--ring) inset;
    background: color-mix(in oklab, var(--md-primary) 12%, var(--md-surface));
}

/* ===== Карточки ===== */
.stage {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.card {
    background: var(--md-surface);
    border: 1px solid rgba(127, 127, 127, .25);
    border-radius: 14px;
}

.notes-card {
    flex: 1 1 600px;
    padding: 18px;
}

.legend-card {
    flex: 0 0 260px;
    padding: 16px;
}

.card-title {
    margin: 0 0 12px;
    font-weight: 700;
}

/* ===== Линия нот лада ===== */
.notes-line {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center; /* центр по горизонтали */
}

.cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 56px;
}

.degree {
    font-weight: 800;
    font-size: 20px;
    line-height: 1;
    padding: 8px 12px;
    border-radius: 999px;
    border: 2px solid transparent;
    letter-spacing: .5px;
}

.degree.char {
    box-shadow: 0 0 0 3px var(--char) inset;
    border-color: var(--char);
}

.deg-major {
    color: var(--deg-major);
}

.deg-minor {
    color: var(--deg-minor);
}

.deg-dim {
    color: var(--deg-dim);
}

.deg-aug {
    color: var(--deg-aug);
}

.note {
    width: 78px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 999px;
    background: var(--pill-bg);
    color: var(--pill-on);
    border: 2px solid transparent;
    font-weight: 700;
}

.note.is-parent-major {
    border-color: var(--md-primary);
    box-shadow: 0 0 0 4px var(--ring);
}

.note.is-parent-minor {
    border-color: var(--md-secondary);
    box-shadow: 0 0 0 4px color-mix(in oklab, var(--md-secondary) 25%, transparent);
}

/* ===== Легенда (в столбик) ===== */
.legend-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    display: inline-block;
    flex: 0 0 14px;
}

.dot.major {
    background: var(--md-primary);
}

.dot.minor {
    background: var(--md-secondary);
}

.dot.char {
    background: var(--char);
    box-shadow: 0 0 0 2px rgba(0, 0, 0, .08) inset;
}