@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: all 0.3s ease-in-out;
}

body {
    font-family: 'Poppins', sans-serif;
    font-size: 62.5%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to right, #4a00e0, #8e2de2);
    overflow: hidden;
    padding: 2rem;
}

body.light {
    background: linear-gradient(to right, #f0f0f0, #dfe9f3);
}

.container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    padding: 3rem;
    max-width: 45rem;
    width: 100%;
    animation: fadeIn 1s ease;
    color: #fff;
}

body.light .container {
    background: rgba(0, 0, 0, 0.05);
    color: #111;
}

h2 {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 2rem;
}

.time {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    gap: 1rem;
}

.time div {
    background: #fff;
    border-radius: 0.8rem;
    padding: 1rem;
    flex: 1;
    text-align: center;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    transform: scale(1);
    animation: pop 0.5s ease-in-out;
}

.time .digit {
    font-size: 2.5rem;
    font-weight: 600;
    color: #000;
}

.time .txt {
    font-size: 1.2rem;
    font-weight: 400;
    color: #333;
}

.btns {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1.2rem;
    background-color: #111;
    color: white;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
    text-transform: uppercase;
}

.btn:hover {
    transform: scale(1.05);
}

.btn.start {
    background: #008000;
}

.btn.stop {
    background: #c70039;
}

.btn.reset {
    background: #005f73;
}

.btn.lap {
    background: #ffa500;
}

.btn.lap:hover {
    background: #cc8400;
}

/* Log section */
.log-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    max-height: 300px;
    overflow-y: auto;
    animation: fadeIn 1s ease-in-out;
}

body.light .log-section {
    background: rgba(0, 0, 0, 0.05);
}

.log-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.log-list {
    list-style-type: square;
    font-size: 1.1rem;
    padding-left: 1.5rem;
    max-height: 120px;
    overflow-y: auto;
    margin-bottom: 1rem;
}

.log-list li {
    margin-bottom: 0.5rem;
    animation: fadeIn 0.5s ease-in;
}

/* Action input */
.action-input {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.action-input input {
    flex: 1;
    padding: 0.8rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    outline: none;
}

.action-input button {
    padding: 0.8rem 1.2rem;
    border: none;
    background: #0066cc;
    color: white;
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
}

.action-input button:hover {
    background: #004c99;
}

body.light .action-input button {
    background: #222;
}

body.light .action-input button:hover {
    background: #000;
}

/* Toggle Theme Switch */
.theme-toggle {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mode-label {
    color: white;
    font-size: 1.1rem;
}

body.light .mode-label {
    color: #111;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 25px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0;
    right: 0; bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 25px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 3.5px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #111;
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pop {
    0% {
        transform: scale(0.8);
    }
    100% {
        transform: scale(1);
    }
}

@media screen and (max-width: 460px) {
    html {
        font-size: 55%;
    }

    .btns {
        flex-direction: column;
    }

    .action-input {
        flex-direction: column;
    }

    .theme-toggle {
        top: 1rem;
        right: 1rem;
    }
}