:root {
    --bg-color: #1a1f18;
    --card-bg: #2e3b2a;
    --text-color: #e0e0e0;
    --accent-color: #8fbc8f;
    --danger-color: #ff6b6b;
    --input-bg: #3e4f3a;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
    text-align: center;
}

h1 {
    color: var(--accent-color);
    font-size: 2.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    margin-bottom: 0.5rem;
}

.status {
    color: var(--accent-color);
    opacity: 0.8;
    margin-bottom: 2rem;
}

.card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    border: 1px solid #4a5f45;
}

.input-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: #a8cca8;
}

input {
    width: 100%;
    padding: 10px;
    border: none;
    background-color: var(--input-bg);
    color: white;
    border-radius: 5px;
    box-sizing: border-box;
}

input:focus {
    outline: 2px solid var(--accent-color);
}

.btn {
    width: 100%;
    padding: 12px;
    background-color: var(--accent-color);
    color: #1a1f18;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #7aa37a;
}

.alert {
    background-color: rgba(255, 107, 107, 0.2);
    border: 1px solid var(--danger-color);
    color: #ffb3b3;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 1rem;
}