Changed around line 1
+ :root {
+ --primary-color: #ff6b6b;
+ --secondary-color: #4ecdc4;
+ --bg-color: #f7f7f7;
+ --text-color: #2d3436;
+ --transition: all 0.3s ease;
+ }
+
+ * {
+ margin: 0;
+ padding: 0;
+ box-sizing: border-box;
+ }
+
+ body {
+ font-family: 'Segoe UI', system-ui, sans-serif;
+ background-color: var(--bg-color);
+ color: var(--text-color);
+ line-height: 1.6;
+ min-height: 100vh;
+ display: flex;
+ flex-direction: column;
+ }
+
+ header {
+ text-align: center;
+ padding: 2rem;
+ background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
+ color: white;
+ box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+ }
+
+ main {
+ flex: 1;
+ max-width: 600px;
+ margin: 0 auto;
+ padding: 2rem;
+ }
+
+ .timer-container {
+ text-align: center;
+ margin-bottom: 3rem;
+ }
+
+ .timer {
+ font-size: 6rem;
+ font-weight: bold;
+ color: var(--primary-color);
+ text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
+ margin: 2rem 0;
+ transition: var(--transition);
+ }
+
+ .timer.flash {
+ animation: flash 1s infinite;
+ }
+
+ @keyframes flash {
+ 0%, 100% { opacity: 1; }
+ 50% { opacity: 0.5; }
+ }
+
+ .controls {
+ display: flex;
+ gap: 1rem;
+ justify-content: center;
+ }
+
+ .btn {
+ padding: 0.8rem 2rem;
+ font-size: 1.1rem;
+ border: none;
+ border-radius: 25px;
+ background: var(--primary-color);
+ color: white;
+ cursor: pointer;
+ transition: var(--transition);
+ }
+
+ .btn:hover {
+ transform: translateY(-2px);
+ box-shadow: 0 4px 12px rgba(0,0,0,0.15);
+ }
+
+ .settings {
+ background: white;
+ padding: 2rem;
+ border-radius: 15px;
+ box-shadow: 0 4px 15px rgba(0,0,0,0.1);
+ }
+
+ .setting-group {
+ margin: 1rem 0;
+ }
+
+ .setting-group label {
+ display: block;
+ margin-bottom: 0.5rem;
+ font-weight: 500;
+ }
+
+ .setting-group input {
+ width: 100%;
+ padding: 0.8rem;
+ border: 2px solid #eee;
+ border-radius: 8px;
+ font-size: 1rem;
+ }
+
+ .mode-indicator {
+ text-align: center;
+ margin-top: 2rem;
+ font-size: 1.2rem;
+ font-weight: 500;
+ }
+
+ footer {
+ text-align: center;
+ padding: 1rem;
+ background: var(--text-color);
+ color: white;
+ }
+
+ @media (max-width: 768px) {
+ .timer {
+ font-size: 4rem;
+ }
+
+ main {
+ padding: 1rem;
+ }
+ }