/* ===== VIRTUAL KEYBOARD ===== */
.keyboard {
    background: rgba(30,41,59,0.6);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 20px;
    border: 1px solid rgba(148,163,184,0.2);
}

.keyboard-row {
    display: flex;
    gap: 4px;
    margin-bottom: 6px;
    justify-content: center;
}

.keyboard-row:last-child {
    margin-bottom: 0;
}

.key {
    background: linear-gradient(145deg, #374151, #1f2937);
    border: 1px solid rgba(148,163,184,0.3);
    border-radius: 6px;
    color: #e5e7eb;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    cursor: pointer;
    transition: all 0.15s ease;
    position: relative;
    user-select: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    line-height: 1.2;
}

.key:hover {
    background: linear-gradient(145deg, #4b5563, #374151);
    border-color: rgba(148,163,184,0.5);
    transform: translateY(-1px);
}

.key.active, .key.highlighted {
    background: linear-gradient(145deg, #22c55e, #16a34a);
    color: white;
    border-color: #22c55e;
    box-shadow: 0 4px 8px rgba(34,197,94,0.3);
    transform: translateY(-2px);
}

/* Key sizes */
.key {
    flex: 1;
    min-width: 40px;
    max-width: 50px;
}

.key.backspace {
    flex: 1.5;
    min-width: 60px;
}

.key.tab {
    flex: 1.3;
    min-width: 55px;
}

.key.caps {
    flex: 1.7;
    min-width: 70px;
}

.key.enter {
    flex: 1.5;
    min-width: 60px;
}

.key.shift {
    flex: 2;
    min-width: 80px;
}

.key.ctrl, .key.alt {
    flex: 1.2;
    min-width: 50px;
}

.key.space {
    flex: 6;
    min-width: 200px;
}

/* Special key styling */
.key.space {
    background: linear-gradient(145deg, #4b5563, #374151);
}

.key.space:hover {
    background: linear-gradient(145deg, #6b7280, #4b5563);
}

.key.space.active {
    background: linear-gradient(145deg, #22c55e, #16a34a);
}

/* Key labels for shifted characters */
.key br {
    display: none;
}

/* Responsive keyboard */
@media (max-width: 768px) {
    .keyboard {
        padding: 12px 8px;
    }
    
    .keyboard-row {
        gap: 2px;
        margin-bottom: 4px;
    }
    
    .key {
        font-size: 0.7rem;
        min-height: 35px;
        min-width: 30px;
        max-width: 40px;
    }
    
    .key.backspace {
        min-width: 45px;
    }
    
    .key.tab {
        min-width: 40px;
    }
    
    .key.caps {
        min-width: 50px;
    }
    
    .key.enter {
        min-width: 45px;
    }
    
    .key.shift {
        min-width: 60px;
    }
    
    .key.ctrl, .key.alt {
        min-width: 35px;
    }
    
    .key.space {
        min-width: 120px;
    }
}

@media (max-width: 480px) {
    .keyboard {
        padding: 8px 4px;
    }
    
    .key {
        font-size: 0.65rem;
        min-height: 30px;
        min-width: 25px;
        max-width: 35px;
    }
    
    .key.space {
        min-width: 100px;
    }
}