* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Nunito", "Poppins", Arial, sans-serif;
    background: #EAF6FF;
    color: #333;
}

/* HERO */
.hero {
    background: linear-gradient(135deg, #EAF6FF, #DFF1FF);
    padding: 40px 20px;
    text-align: center;
}

.hero h1 {
    margin: 0;
    font-size: 2.2rem;
}

.hero p {
    font-size: 1.1rem;
    margin-top: 10px;
}

.balls {
    font-size: 1.8rem;
    margin-top: 10px;
}

/* CONTENT */
.container {
    display: flex;
    justify-content: center;
    padding: 20px;
}

.card {
    background: #FFFFFF;
    max-width: 420px;
    width: 100%;
    border-radius: 18px;
    padding: 25px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.12);
}

.card h2 {
    text-align: center;
    margin-top: 0;
}

.hint {
    text-align: center;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

/* FORM */
label {
    display: block;
    margin-bottom: 15px;
    font-weight: 600;
}

label .icon {
    margin-left: 6px;
}

input {
    width: 100%;
    padding: 12px;
    margin-top: 6px;
    font-size: 1rem;
    border-radius: 10px;
    border: 2px solid #D6EAF8;
}

input:focus {
    outline: none;
    border-color: #3B82F6;
}

/* GUESSES */
.guesses {
    display: flex;
    align-items: center;
    margin: 15px 0;
    gap: 6px;
    flex-wrap: wrap;
}

.ball {
    font-size: 1.2rem;
}

.guess-text {
    margin-left: 10px;
    font-size: 0.9rem;
}

/* BUTTON */
button {
    width: 100%;
    padding: 14px;
    border-radius: 14px;
    border: none;
    font-size: 1.1rem;
    background: #34C759;
    color: white;
    cursor: pointer;
}

button:hover {
    background: #2FA94F;
}

/* MESSAGES */
.message {
    margin-top: 15px;
    padding: 12px;
    border-radius: 10px;
    text-align: center;
}

.success {
    background: #E6F9EC;
    color: #1F7A3A;
}

.warning {
    background: #FFF4CC;
    color: #7A5A00;
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 15px;
    font-size: 0.9rem;
    color: #666;
}

.details {
    margin-top: 10px;
}

.details summary {
    cursor: pointer;
    font-weight: 700;
    margin-bottom: 10px;
}

.small {
    font-size: 0.85rem;
    color: #555;
    margin-top: 6px;
}