:root {
    --kna-bg: #fffdf5;
    --kna-accent: #FBDB6D;
    --kna-accent-hover: #f5cf4e;
    --kna-text: #1f2937;
    --kna-text-light: #6b7280;
    --kna-border: #f3f4f6;
}

/* --- 1. RESET & ISOLATION --- */
div.kna-player-wrapper * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

div.kna-player-wrapper {
    background: var(--kna-bg);
    border: 1px solid var(--kna-border);
    border-radius: 2rem; /* 32px */
    padding: 1.5rem;     /* 24px */
    box-shadow: 0 1.875rem 3.75rem rgba(0, 0, 0, 0.06); /* 30px 60px */
    max-width: 50rem;    /* 800px */
    margin: 2rem auto !important;
    width: 100%;
    
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;           /* 32px */
    transition: all 0.3s ease;
    font-family: system-ui, -apple-system, sans-serif !important;
    position: relative;
    line-height: 1.5;
}

@media (min-width: 48rem) { /* 768px */
    div.kna-player-wrapper {
        flex-direction: row;
        padding: 2rem;   /* 32px */
        align-items: center;
    }
}

/* --- 2. PLAY BUTTON --- */
.kna-play-container { flex-shrink: 0; }

div.kna-player-wrapper button.kna-play-pause-main {
    width: 4.75rem !important;  /* 76px */
    height: 4.75rem !important; /* 76px */
    border-radius: 50% !important;
    background-color: var(--kna-accent) !important;
    color: var(--kna-text) !important;
    border: none !important;
    cursor: pointer;
    display: flex !important;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0.75rem 1.5rem -0.5rem rgba(251, 219, 109, 0.8) !important;
    transition: all 0.1s;
    margin: 0 !important;
    padding: 0 !important;
}

div.kna-player-wrapper button.kna-play-pause-main:hover {
    background-color: var(--kna-accent-hover) !important;
    transform: scale(1.05);
}

div.kna-player-wrapper button.kna-play-pause-main svg {
    width: 2.25rem !important;  /* 36px */
    height: 2.25rem !important; /* 36px */
    display: block;
    fill: currentColor;
    margin: 0 !important;
}

@media (min-width: 48rem) { /* 768px */
    div.kna-player-wrapper button.kna-play-pause-main { 
        width: 5.75rem !important;  /* 92px */
        height: 5.75rem !important; /* 92px */
    }
}

/* --- 3. CONTENT COLUMN --- */
.kna-content-column {
    flex-grow: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.25rem; /* 20px */
    text-align: center;
}

@media (min-width: 48rem) { .kna-content-column { text-align: left; } }

/* --- 4. TYPOGRAPHY --- */
h3.kna-title {
    font-size: 1.25rem !important;
    font-weight: 700 !important;
    color: var(--kna-text) !important;
    line-height: 1.2 !important;
    margin: 0 !important;
    padding: 0 !important;
    text-transform: none !important;
    letter-spacing: normal !important;
    
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    background: none !important;
    border: none !important;
}

@media (min-width: 48rem) { h3.kna-title { font-size: 1.5rem !important; } }

p.kna-subtitle {
    color: var(--kna-text-light) !important;
    font-weight: 600 !important;
    font-size: 0.875rem !important;
    margin: 0.25rem 0 0 0 !important; /* 4px */
    line-height: 1.4 !important;
}

/* --- 5. TIMELINE --- */
.kna-timeline-row {
    display: flex;
    flex-direction: column;
    gap: 0.5rem; /* 8px */
    width: 100%;
}

input[type=range].kna-seek-slider {
    width: 100%;
    height: 0.375rem !important; /* 6px */
    -webkit-appearance: none;
    appearance: none;
    background: #e5e7eb !important;
    border-radius: 9999px;
    cursor: pointer;
    outline: none;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
}

input[type=range].kna-seek-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 1rem;  /* 16px */
    height: 1rem; /* 16px */
    border-radius: 50%;
    background: var(--kna-accent);
    cursor: pointer;
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.1);
    margin-top: 0;
}

input[type=range].kna-seek-slider::-moz-range-thumb {
    width: 1rem;
    height: 1rem;
    border: none;
    border-radius: 50%;
    background: var(--kna-accent);
    cursor: pointer;
}

.kna-time-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem !important; /* 12px (adjusted from 11px for readability) */
    font-weight: 700 !important;
    letter-spacing: 0.05em;
    color: var(--kna-text-light) !important;
    text-transform: uppercase;
    opacity: 0.8;
}

/* --- 6. SECONDARY CONTROLS --- */
.kna-controls-secondary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 1rem; /* 16px */
    padding-top: 0.25rem; /* 4px */
    width: 100%;
}

@media (min-width: 48rem) {
    .kna-controls-secondary { justify-content: space-between; }
}

.kna-controls-left {
    display: flex;
    align-items: center;
    gap: 0.75rem; /* 12px */
}

div.kna-player-wrapper button.kna-btn {
    min-width: 2.75rem !important;  /* 44px */
    min-height: 2.75rem !important; /* 44px */
    width: auto !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    background: transparent !important;
    background-color: transparent !important;
    border: none !important;
    border-radius: 1rem !important; /* 16px */
    color: var(--kna-text-light) !important;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    box-shadow: none !important;
    margin: 0 !important;
    padding: 0 !important;
    text-transform: none !important;
}

div.kna-player-wrapper button.kna-btn:hover {
    background-color: rgba(243, 244, 246, 0.5) !important;
    color: var(--kna-text) !important;
}

div.kna-player-wrapper button.kna-speed {
    font-size: 0.8125rem !important; /* 13px */
    font-weight: 900 !important;
    width: auto !important;
    padding: 0 0.5rem !important; /* 8px */
}

div.kna-player-wrapper button.kna-btn svg {
    width: 1.25rem !important;  /* 20px */
    height: 1.25rem !important; /* 20px */
    margin: 0 !important;
    fill: none !important;
}

/* --- 7. VOLUME POPOVER --- */
.kna-volume-wrapper { position: relative; }

div.kna-player-wrapper .kna-volume-wrapper.active button.kna-volume-trigger {
    background-color: var(--kna-accent) !important;
    color: var(--kna-text) !important;
    box-shadow: 0 0.25rem 0.375rem -0.0625rem rgba(251, 219, 109, 0.2) !important;
}

.kna-volume-popover {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 1rem; /* 16px */
    padding: 1rem;       /* 16px */
    background: #fff !important;
    border-radius: 1.5rem; /* 24px */
    box-shadow: 0 0.625rem 1.875rem rgba(0,0,0,0.12) !important;
    border: 1px solid #f3f4f6;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem; /* 12px */
    z-index: 9999;
    min-width: 3.75rem; /* 60px */
    animation: knaSlideUp 0.2s ease-out forwards;
}

div.kna-player-wrapper .kna-volume-wrapper.active .kna-volume-popover {
    display: flex;
}

@keyframes knaSlideUp {
    from { opacity: 0; transform: translate(-50%, 0.625rem); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

.kna-vol-percent {
    font-size: 0.625rem !important; /* 10px */
    font-weight: 900 !important;
    color: #9ca3af !important;
    text-transform: uppercase;
}

.kna-vol-track {
    height: 7.5rem; /* 120px */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.25rem;
}

input[type=range].slider-vertical {
    writing-mode: bt-lr;
    -webkit-appearance: slider-vertical;
    appearance: slider-vertical;
    width: 0.5rem !important; /* 8px */
    height: 100% !important;
    padding: 0 0.3125rem; /* 5px */
    background: transparent !important;
    margin: 0 !important;
}