* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
    background-image: url('https://images.unsplash.com/photo-1508615039623-a25605d2b022?q=80&w=2000');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    text-align: center;
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.timer {
    font-size: 6rem;
    font-weight: bold;
    margin: 2rem 0;
}

.controls button, .settings button {
    font-size: 1.1rem;
    margin: 0.5rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #4CAF50;
    color: white;
}

.controls button:hover, .settings button:hover {
    background-color: #45a049;
}

.settings {
    margin-top: 1rem;
}

.settings button {
    background-color: #808080;
}

.settings button.active {
    background-color: #4CAF50;
}

:root {
    --primary-color: #7c98b3;  /* Soft blue-gray */
    --text-color: #2c3e50;     /* Deep blue-gray */
    --bg-color: #f5f7fa;       /* Light gray-blue */
    --accent-bg: #e8eef4;      /* Slightly darker bg for contrast */
    --accent-color: #a8c0d3;   /* Muted blue */
    --success-color: #81b29a;  /* Soft green */
    --warning-color: #f2cc8f;  /* Soft yellow */
    --max-width: 1200px;
}

/* Add a subtle overlay to improve text readability */
main {
    background: rgba(203, 204, 206, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin: 2rem auto;
}

/* Sound controls styling */
.sound-controls {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.sound-controls h3 {
    margin-top: 0;
    font-size: 1rem;
    color: var(--primary-color);
}

.sound-button {
    background: var(--accent-bg);
    border: none;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    border-radius: 20px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.sound-button.active {
    background: var(--primary-color);
    color: white;
}

.volume-control {
    width: 100%;
    margin: 0.5rem 0;
}

/* Update existing button styles */
button {
    background: var(--accent-bg);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

button:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}