* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans', sans-serif;
    background-color: #f8f6f0;
    color: #4a4a4a;
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.title {
    font-size: 2.5rem;
    font-weight: 600;
    color: #6b9bd1;
    margin-bottom: 20px;
}

.form {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    text-align: center;
}

.input-group {
    margin-bottom: 25px;
}

.label {
    display: block;
    font-size: 1.3rem;
    font-weight: 600;
    color: #5a5a5a;
    margin-bottom: 15px;
}

.input {
    width: 100%;
    max-width: 300px;
    padding: 15px 20px;
    font-size: 1.2rem;
    border: 3px solid #b8ddb8;
    border-radius: 10px;
    text-align: center;
    font-family: 'Noto Sans', sans-serif;
    background-color: #fafafa;
}

.input:focus {
    outline: none;
    border-color: #6b9bd1;
    background-color: white;
}

.button {
    padding: 15px 30px;
    font-size: 1.2rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-family: 'Noto Sans', sans-serif;
    transition: all 0.3s ease;
}

.button.primary {
    background-color: #6b9bd1;
    color: white;
}

.button.primary:hover {
    background-color: #5a8bc0;
    transform: translateY(-2px);
}

.button.secondary {
    background-color: #b8ddb8;
    color: #4a4a4a;
    margin-top: 25px;
}

.button.secondary:hover {
    background-color: #a5d1a5;
    transform: translateY(-2px);
}

.message {
    text-align: center;
    font-size: 1.1rem;
    color: #d17a6b;
    margin-bottom: 20px;
    padding: 15px;
    background-color: #fff5f5;
    border-radius: 10px;
    border: 2px solid #f0c2c2;
    display: none;
}

.card-container {
    display: none;
    text-align: center;
}

.card {
    background: linear-gradient(135deg, #e6f3ff 0%, #b3d9ff 100%);
    padding: 40px;
    border-radius: 30px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 25px;
    display: inline-block;
    max-width: 100%;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.6) 20%, transparent 20%),
        radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.4) 15%, transparent 15%),
        radial-gradient(circle at 40% 80%, rgba(255, 255, 255, 0.3) 25%, transparent 25%);
    pointer-events: none;
}

.card-content {
    margin-bottom: 30px;
    position: relative;
    z-index: 2;
}

.acrostic-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: 15px;
    justify-content: center;
    max-width: 100%;
    margin: 0 auto;
    overflow-x: auto;
    background: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 25px;
    border: 3px solid rgba(255, 255, 255, 0.8);
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.05);
    position: relative;
    z-index: 2;
}

.acrostic-grid.long-name {
    gap: 5px;
    padding: 20px;
}

.acrostic-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    border-radius: 20px;
    min-height: 140px;
    text-align: center;
    min-width: 70px;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 2px solid rgba(107, 155, 209, 0.2);
    transition: transform 0.3s ease;
}

.acrostic-block.long-name {
    padding: 8px;
    min-width: 45px;
    min-height: 110px;
}

.acrostic-block:hover {
    transform: translateY(-5px);
}

.acrostic-letter {
    font-size: 3.5rem;
    font-weight: 700;
    color: #6b9bd1;
    margin-bottom: 10px;
    line-height: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.acrostic-letter.long-name {
    font-size: 2.2rem;
    margin-bottom: 5px;
}

.acrostic-word {
    font-size: 1.1rem;
    font-weight: 600;
    color: #5a5a5a;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.acrostic-word.long-name {
    font-size: 0.8rem;
    margin-bottom: 4px;
}

.acrostic-icon {
    font-size: 2.2rem;
    margin-top: 5px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.acrostic-icon.long-name {
    font-size: 1.6rem;
    margin-top: 2px;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .card {
        padding: 30px;
        max-width: 100%;
    }
    
    .card-content::before {
        font-size: 3rem;
        left: -20px;
    }
    
    .card-content::after {
        font-size: 1.5rem;
        right: -15px;
    }
    
    .acrostic-grid {
        gap: 8px;
        padding: 20px;
    }
    
    .acrostic-block {
        padding: 10px;
        min-height: 120px;
        min-width: 50px;
    }
    
    .acrostic-letter {
        font-size: 2.2rem;
    }
    
    .acrostic-word {
        font-size: 0.85rem;
    }
    
    .acrostic-icon {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .card-content::before {
        display: block;
        font-size: 2.5rem;
        left: -15px;
    }
    
    .card-content::after {
        display: none;
    }
    
    .acrostic-grid {
        gap: 4px;
        padding: 15px;
    }
    
    .acrostic-block {
        padding: 8px;
        min-height: 100px;
        min-width: 40px;
    }
    
    .acrostic-letter {
        font-size: 1.8rem;
    }
    
    .acrostic-word {
        font-size: 0.75rem;
    }
    
    .acrostic-icon {
        font-size: 1.4rem;
    }
}

@media (max-width: 360px) {
    .acrostic-grid {
        gap: 3px;
        padding: 10px;
    }
    
    .acrostic-block {
        padding: 6px;
        min-height: 90px;
        min-width: 35px;
    }
    
    .acrostic-letter {
        font-size: 1.5rem;
    }
    
    .acrostic-word {
        font-size: 0.65rem;
    }
    
    .acrostic-icon {
        font-size: 1.2rem;
    }
}