:root {
    --bg-color: var(--tg-theme-bg-color, #f2f2f7);
    --text-color: var(--tg-theme-text-color, #000000);
    --hint-color: var(--tg-theme-hint-color, #8e8e93);
    --button-color: var(--tg-theme-button-color, #007aff);
    --button-text-color: var(--tg-theme-button-text-color, #ffffff);
    --card-bg: var(--tg-theme-secondary-bg-color, #ffffff);
    --border-radius: 16px;
    --spacing: 16px;
}

/* Homekit minimal style adjustments */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: var(--tg-theme-bg-color, #000000);
        --text-color: var(--tg-theme-text-color, #ffffff);
        --card-bg: var(--tg-theme-secondary-bg-color, #1c1c1e);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

#app {
    padding: var(--spacing);
    display: flex;
    flex-direction: column;
    gap: var(--spacing);
}

header h1 {
    font-size: 28px;
    margin: 0 0 4px 0;
    font-weight: 700;
}

header p {
    margin: 0;
    color: var(--hint-color);
    font-size: 15px;
}

.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.card h2 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--hint-color);
}

/* Grille des Modes */
.modes-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.mode-btn {
    background: rgba(142, 142, 147, 0.12);
    border: none;
    border-radius: 12px;
    padding: 16px 12px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.mode-btn:active {
    transform: scale(0.95);
    background: rgba(142, 142, 147, 0.2);
}

.mode-btn.active {
    background: var(--button-color);
    color: var(--button-text-color);
}

/* Sliders */
.slider-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: -4px;
}

.slider-header h2 {
    margin: 0;
}

.slider-header span {
    font-weight: bold;
    color: var(--button-color);
}

/* Custom Range Slider */
input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
    border-radius: 8px;
    height: 44px; /* Touche tactile épaisse */
    margin: 0;
}

input[type=range]:focus {
    outline: none;
}

/* Track Luminosité */
#brightness-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 36px;
    cursor: pointer;
    background: linear-gradient(90deg, #1c1c1e 0%, #ffffcc 100%);
    border-radius: 18px;
    border: 1px solid rgba(0,0,0,0.1);
}

/* Track Couleurs (Hue 0-360) */
#color-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 36px;
    cursor: pointer;
    background: linear-gradient(to right, #ff0000 0%, #ffff00 17%, #00ff00 33%, #00ffff 50%, #0000ff 67%, #ff00ff 83%, #ff0000 100%);
    border-radius: 18px;
    border: 1px solid rgba(0,0,0,0.1);
}

/* Thumb commun */
input[type=range]::-webkit-slider-thumb {
    height: 36px;
    width: 36px;
    border-radius: 50%;
    background: #ffffff;
    cursor: pointer;
    -webkit-appearance: none;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
    border: 2px solid var(--card-bg);
}

.secondary-btn {
    background: transparent;
    border: 1px solid var(--button-color);
    color: var(--button-color);
    padding: 12px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    margin-top: 8px;
    width: 100%;
    cursor: pointer;
}

.secondary-btn:active {
    background: rgba(0, 122, 255, 0.1);
}