:root {
    --primary-bg: #f0f2f5;
    --card-bg: #ffffff;
    --text-main: #1a1a1a;
    --accent-color: #6366f1; /* Indigo */
    --red: #e11414;
    --green: #16833C;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--primary-bg);
}


.description_div {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 3rem 3rem 0 3rem;
    padding: 0 1rem;
    text-wrap: wrap;
    text-align: center;

}
.app_container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--card-bg);
    margin-top: 1rem;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    width: 100%;
    max-width: 400px;
}

.counter {
    font-size: 4rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.operations {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 2rem;
}

/* Button */
button {
    cursor: pointer;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

button:active {
    transform: scale(0.95);
}

.increase, .decrease {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    color: white;
}

.increase { background-color: var(--green); }
.increase:hover { background-color: #16a34a; }

.decrease { background-color: var(--red); }
.decrease:hover { background-color: #dc2626; }

/* Step Input */
.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.step_label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #666;
}

.step_input {
    width: 60px;
    padding: 8px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    text-align: center;
    font-size: 1rem;
    outline: none;
}

.step_input:focus {
    border-color: var(--accent-color);
}

/* Reset Button */
.reset {
    background-color: transparent;
    color: #666;
    font-size: 0.9rem;
    padding: 8px 16px;
    text-decoration: underline;
}

.reset:hover {
    color: var(--text-main);
}